Engineering Steel Grades and Specifications
Overview of Engineering Steel
Engineering steel is a versatile range of carbon and alloy steels specifically manufactured to provide excellent machinability, dimensional accuracy, mechanical strength and reliable performance for precision engineering and industrial manufacturing applications. These steels are widely used for producing shafts, gears, pins, rollers, bushes, hydraulic components, machine parts, structural assemblies and precision-machined components where consistency and durability are essential.
Engineering steels are supplied in various product forms including bright drawn bars, hard chrome plated bars, medium carbon steels, free cutting steels, flats, squares and round bars. Each grade is manufactured to deliver specific engineering characteristics such as improved machinability, enhanced tensile strength, superior wear resistance, excellent weldability or precision surface finish depending on the intended application.
Low carbon grades such as 080A15 and EN3B provide outstanding fabrication and welding characteristics, making them ideal for general engineering and structural applications. Free machining grades including EN1A (220M07 / 230M07) and EN1A Leaded are designed for high-speed CNC machining and automatic production, reducing machining time while producing excellent surface finishes. Medium carbon grades such as EN8 (080M40) provide increased strength, toughness and wear resistance for shafts, axles, gears and mechanical power transmission components. EN14 Hard Chrome Plated Steel combines a high-strength engineering steel core with a precision chrome-plated surface, offering exceptional corrosion resistance, wear resistance and low friction for hydraulic cylinders and pneumatic equipment.
Engineering steel is extensively used throughout the automotive, aerospace, rail, oil and gas, agriculture, mining, power generation, construction equipment, hydraulics, manufacturing and precision engineering industries where dependable mechanical performance and dimensional accuracy are critical.
Chargentum supplies premium Engineering Steel products throughout the UK, including Bright Drawn Mild Steel Flat Bar (080A15), Bright Drawn Mild Steel Round Bar (EN3B), EN14 Hard Chrome Plated Steel Round Bar, EN1A Free Cutting Mild Steel Round Bar (220M07 / 230M07), EN1A Leaded Free Cutting Steel Round Bar (220M07), EN8 Medium Carbon Steel Round Bar (080M40), EN8 Medium Carbon Steel Flats & Squares (080M40) and EN8 Hard Chrome Plated Steel Round Bar (080M40). All products are supplied with full mill certification, excellent dimensional accuracy and nationwide UK delivery for engineering, fabrication and manufacturing applications.
Engineering Steel Types
| Product | Grade | Steel Type | Typical Applications |
|---|---|---|---|
| Bright Drawn Mild Steel Flat Bar | 080A15 | Bright Drawn Low Carbon Steel | Brackets, Machine Components, Fixtures, General Fabrication |
| Bright Drawn Mild Steel Round Bar | EN3B | Bright Drawn Mild Steel | Shafts, Pins, Rollers, General Engineering |
| EN14 Hard Chrome Plated Steel Round Bar | EN14 | Chromium-Molybdenum Engineering Steel | Hydraulic Rams, Cylinder Rods, Pneumatic Equipment |
| EN1A Free Cutting Mild Steel Round Bar | 220M07 / 230M07 | Free Machining Mild Steel | CNC Components, Screws, Studs, Turned Parts |
| EN1A Leaded Free Cutting Steel Round Bar | 220M07 Pb | Leaded Free Cutting Steel | High-Speed CNC Machining, Precision Components |
| EN8 Medium Carbon Steel Round Bar | 080M40 | Medium Carbon Engineering Steel | Shafts, Axles, Gears, Pins |
| EN8 Medium Carbon Steel Flats & Squares | 080M40 | Medium Carbon Engineering Steel | Keys, Machine Parts, General Engineering |
| EN8 Hard Chrome Plated Steel Round Bar | 080M40 | Hard Chrome Plated Engineering Steel | Hydraulic Cylinders, Guide Rods, Industrial Equipment |
Notes:
- Available with full mill certification (EN 10204 3.1).
- Excellent machinability across all engineering steel grades.
- Bright drawn, hot rolled and hard chrome plated finishes available.
- Precision machining tolerances available on selected products.
- Suitable for CNC machining, turning, milling and drilling.
- Excellent weldability for low carbon grades.
- Medium carbon grades provide improved strength and wear resistance.
- Hard chrome plated bars offer superior corrosion resistance and low-friction surfaces.
- Cut-to-length services available upon request.
- Nationwide UK delivery.
Standard Grades
| Grade | Alternative Designation | Typical Tensile Strength (MPa) | Typical Yield Strength (MPa) | Primary Applications |
|---|---|---|---|---|
| 080A15 | Bright Drawn Mild Steel | 430–550 | 220–300 | General Engineering & Fabrication |
| EN3B | BS970 EN3B | 430–550 | 280–340 | Shafts, Pins & General Engineering |
| EN1A | 220M07 / 230M07 | 370–530 | 240–320 | High-Speed CNC Machining |
| EN1A Pb | 220M07 Leaded | 370–530 | 240–320 | Automatic Machining |
| EN8 | 080M40 | 550–700 | 350–500 | Shafts, Gears & Mechanical Components |
| EN14 | BS970 EN14 | 650–850 | 450–650 | Hydraulic & Precision Engineering |
Chemical Composition (Typical % by Mass)
The following chemical compositions represent the typical ranges for the Engineering Steel grades supplied by Chargentum. Actual values may vary slightly depending on the manufacturing process and applicable material standards.
| Element | 080A15 | EN3B | EN1A (220M07/230M07) | EN8 (080M40) | EN14 | Function |
|---|---|---|---|---|---|---|
| Carbon (C) | 0.13–0.18 | 0.10–0.15 | 0.07–0.15 | 0.36–0.44 | 0.36–0.44 | Strength & Hardness |
| Silicon (Si) | ≤0.40 | ≤0.35 | ≤0.05 | 0.10–0.40 | 0.10–0.35 | Deoxidation |
| Manganese (Mn) | 0.60–0.90 | 0.70–1.00 | 0.80–1.20 | 0.60–1.00 | 1.00–1.40 | Toughness & Strength |
| Sulphur (S) | ≤0.05 | ≤0.05 | 0.20–0.35 | ≤0.05 | ≤0.05 | Improved Machinability (EN1A) |
| Phosphorus (P) | ≤0.05 | ≤0.05 | ≤0.07 | ≤0.05 | ≤0.05 | Controlled Residual |
| Chromium (Cr) | — | — | — | — | 0.90–1.40 | Wear Resistance |
| Molybdenum (Mo) | — | — | — | — | 0.20–0.35 | Hardenability |
| Lead (Pb)* | — | — | 0.15–0.35 (Leaded Grade) | — | — | Enhanced Free Machining |
* Present only in EN1A Leaded (220M07 Pb).
Mechanical Properties
Typical mechanical properties supplied in the standard delivery condition.
| Property | 080A15 | EN3B | EN1A | EN8 | EN14 | Notes |
|---|---|---|---|---|---|---|
| Yield Strength | 220–300 MPa | 280–340 MPa | 240–320 MPa | 350–500 MPa | 450–650 MPa | Permanent deformation point |
| Tensile Strength | 430–550 MPa | 430–550 MPa | 370–530 MPa | 550–700 MPa | 650–850 MPa | Maximum load before failure |
| Elongation | 20–30% | 20–28% | 18–25% | 16–22% | 14–18% | Ductility |
| Hardness | 120–170 HB | 120–170 HB | 110–170 HB | 170–220 HB | 200–255 HB | Typical |
| Modulus of Elasticity | 210,000 MPa | 210,000 MPa | 210,000 MPa | 210,000 MPa | 210,000 MPa | Material stiffness |
| Density | 7,850 kg/m³ | 7,850 kg/m³ | 7,850 kg/m³ | 7,850 kg/m³ | 7,850 kg/m³ | Typical |
Delivery Conditions
| Condition | Description |
|---|---|
| Bright Drawn | Precision cold finished with improved dimensional accuracy |
| Hot Rolled | Standard mill finish |
| Hard Chrome Plated | Precision ground and chrome plated surface |
| Peeled | Improved dimensional tolerance |
| Turned | Machined surface finish |
| Ground | Precision ground finish |
| Precision Ground | Tight tolerance engineering applications |
| Cut to Size | Available upon request |
| Ultrasonically Tested | Available for critical engineering applications |
Physical Properties
| Property | Value | Notes |
|---|---|---|
| Density | 7,850 kg/m³ | Typical engineering steel |
| Modulus of Elasticity | 210,000 MPa | Material stiffness |
| Thermal Expansion | 11.5 × 10⁻⁶ /°C | Approximate |
| Thermal Conductivity | 45–60 W/mK | Grade dependent |
| Electrical Conductivity | 8–15% IACS | Approximate |
| Melting Range | 1,420–1,530°C | Approximate |
Standards & Specifications
| Grade | BS Designation | EN Equivalent | AISI / SAE Equivalent | Typical Applications |
|---|---|---|---|---|
| 080A15 | 080A15 | C15E | SAE 1015 | Bright Drawn Flat Bar |
| EN3B | EN3B | C15 | SAE 1018 | General Engineering |
| EN1A | 220M07 / 230M07 | 11SMn30 | SAE 1213 | Free Cutting Steel |
| EN1A Leaded | 220M07 Pb | 11SMnPb30 | SAE 12L13 | High-Speed Machining |
| EN8 | 080M40 | C45E | SAE 1045 | Medium Carbon Steel |
| EN14 | EN14 | 41Cr4 | SAE 5140 (Similar) | Hard Chrome Plated Bars |
Heat Treatment Information
| Process | 080A15 | EN3B | EN1A | EN8 | EN14 | Purpose |
|---|---|---|---|---|---|---|
| Annealing | 870–910°C | 870–910°C | 870–910°C | 820–860°C | 650–700°C | Improve machinability |
| Normalising | 880–920°C | 880–920°C | 880–920°C | 830–870°C | 850–880°C | Grain refinement |
| Hardening | — | — | — | 820–860°C | 830–860°C | Increase strength |
| Quenching | — | — | — | Water/Oil | Oil | Controlled cooling |
| Tempering | — | — | — | 550–660°C | 540–680°C | Improve toughness |
| Stress Relieving | 550–650°C | 550–650°C | 550–650°C | 550–650°C | 550–650°C | Reduce residual stress |
This technical data provides general engineering guidance only. Actual chemical composition, mechanical properties and heat treatment characteristics may vary depending on manufacturing process, product size and applicable standards. Full mill certification and material test reports are available upon request with all Chargentum Engineering Steel products.
Metal Types & Applications
Bright Drawn Mild Steel Flat Bar (080A15)
Bright Drawn Mild Steel Flat Bar (080A15) is a precision cold-finished low carbon engineering steel manufactured to provide excellent dimensional accuracy, smooth surface finish and consistent mechanical properties. The bright drawing process improves straightness, surface quality and machining performance compared with conventional hot rolled flat bar, making it an excellent choice for precision engineering and fabrication.
080A15 is one of the UK’s most widely used engineering steels for general manufacturing due to its excellent machinability, good weldability, high formability and ease of fabrication. It is commonly specified for machine components, brackets, fixtures, supports, frames, jigs, agricultural equipment, fabrication projects and general engineering applications where reliable performance and accurate dimensions are required.
Chargentum supplies premium Bright Drawn Mild Steel Flat Bar (080A15) in a comprehensive range of thicknesses and widths, manufactured to strict engineering tolerances and supplied in standard 3000 mm lengths. All material is available with full mill certification (EN 10204 3.1), excellent surface finish and nationwide UK delivery, making it suitable for CNC machining, fabrication, structural engineering and precision manufacturing.
| Thickness (mm) | Width (mm) | Length (mm) | Weight (kg/Piece) | Condition | Grade | Typical Application |
|---|---|---|---|---|---|---|
| 3 | 20 | 3000 | 1.41 | Bright Drawn | 080A15 | Brackets |
| 3 | 25 | 3000 | 1.77 | Bright Drawn | 080A15 | Fabrication |
| 5 | 20 | 3000 | 2.36 | Bright Drawn | 080A15 | Machine Parts |
| 5 | 25 | 3000 | 2.94 | Bright Drawn | 080A15 | Fixtures |
| 5 | 30 | 3000 | 3.53 | Bright Drawn | 080A15 | Tool Supports |
| 6 | 40 | 3000 | 5.65 | Bright Drawn | 080A15 | Machine Frames |
| 8 | 40 | 3000 | 7.54 | Bright Drawn | 080A15 | Jigs |
| 8 | 50 | 3000 | 9.42 | Bright Drawn | 080A15 | Tool Bases |
| 10 | 40 | 3000 | 9.42 | Bright Drawn | 080A15 | General Engineering |
| 10 | 50 | 3000 | 11.78 | Bright Drawn | 080A15 | Machine Components |
| 10 | 60 | 3000 | 14.13 | Bright Drawn | 080A15 | Structural Fabrication |
| 12 | 50 | 3000 | 14.13 | Bright Drawn | 080A15 | Engineering Supports |
| 12 | 60 | 3000 | 16.96 | Bright Drawn | 080A15 | Machinery |
| 12 | 80 | 3000 | 22.61 | Bright Drawn | 080A15 | Equipment Frames |
| 16 | 50 | 3000 | 18.84 | Bright Drawn | 080A15 | Machine Bases |
| 16 | 75 | 3000 | 28.26 | Bright Drawn | 080A15 | Heavy Fabrication |
| 16 | 100 | 3000 | 37.68 | Bright Drawn | 080A15 | Tooling |
| 20 | 50 | 3000 | 23.55 | Bright Drawn | 080A15 | Fabricated Assemblies |
| 20 | 75 | 3000 | 35.33 | Bright Drawn | 080A15 | Industrial Equipment |
| 20 | 100 | 3000 | 47.10 | Bright Drawn | 080A15 | Machine Structures |
| 25 | 75 | 3000 | 44.16 | Bright Drawn | 080A15 | Structural Supports |
| 25 | 100 | 3000 | 58.88 | Bright Drawn | 080A15 | Heavy Engineering |
| 25 | 125 | 3000 | 73.59 | Bright Drawn | 080A15 | Manufacturing Equipment |
| 30 | 100 | 3000 | 70.65 | Bright Drawn | 080A15 | Industrial Machinery |
| 30 | 125 | 3000 | 88.31 | Bright Drawn | 080A15 | Engineering Frames |
| 30 | 150 | 3000 | 105.98 | Bright Drawn | 080A15 | Heavy Fabrication |
| 40 | 100 | 3000 | 94.20 | Bright Drawn | 080A15 | Machine Bases |
| 40 | 150 | 3000 | 141.30 | Bright Drawn | 080A15 | Structural Engineering |
| 40 | 200 | 3000 | 188.40 | Bright Drawn | 080A15 | Heavy Equipment |
| 50 | 150 | 3000 | 176.63 | Bright Drawn | 080A15 | Industrial Machinery |
| 50 | 200 | 3000 | 235.50 | Bright Drawn | 080A15 | Manufacturing Systems |
| 50 | 250 | 3000 | 294.38 | Bright Drawn | 080A15 | Heavy Engineering Projects |
Bright Drawn Mild Steel Round Bar (EN3B)
Bright Drawn Mild Steel Round Bar (EN3B) is a precision cold-finished low carbon engineering steel manufactured to provide excellent dimensional accuracy, superior surface finish and outstanding machinability. The bright drawing process improves straightness, surface quality and dimensional tolerances compared with hot rolled round bar, making EN3B one of the UK’s most widely specified engineering steels for precision machining and fabrication.
EN3B offers an excellent combination of machinability, weldability, formability and ductility, making it suitable for both manual and CNC machining. It is commonly used for shafts, pins, rollers, bushes, spacers, couplings, studs, machine components, agricultural equipment and general engineering fabrications where consistent mechanical properties and precise dimensions are required.
Chargentum supplies premium Bright Drawn Mild Steel Round Bar (EN3B) in a comprehensive range of diameters manufactured to strict engineering standards. All material is supplied in standard 3000–6000 mm lengths with full mill certification (EN 10204 3.1), excellent surface finish and nationwide UK delivery, making it suitable for precision engineering, fabrication, manufacturing and industrial applications.
| Diameter (mm) | Weight (kg/m) | Length (mm) | Condition | Grade | Typical Application |
|---|---|---|---|---|---|
| 10 | 0.62 | 3000–6000 | Bright Drawn | EN3B | Dowels |
| 12 | 0.89 | 3000–6000 | Bright Drawn | EN3B | Precision Pins |
| 16 | 1.58 | 3000–6000 | Bright Drawn | EN3B | Bushes |
| 20 | 2.47 | 3000–6000 | Bright Drawn | EN3B | Machine Components |
| 25 | 3.85 | 3000–6000 | Bright Drawn | EN3B | Shafts |
| 30 | 5.55 | 3000–6000 | Bright Drawn | EN3B | Rollers |
| 35 | 7.55 | 3000–6000 | Bright Drawn | EN3B | Engineering Pins |
| 40 | 9.87 | 3000–6000 | Bright Drawn | EN3B | Drive Shafts |
| 45 | 12.49 | 3000–6000 | Bright Drawn | EN3B | Couplings |
| 50 | 15.42 | 3000–6000 | Bright Drawn | EN3B | Machine Parts |
| 55 | 18.66 | 3000–6000 | Bright Drawn | EN3B | Support Rollers |
| 60 | 22.20 | 3000–6000 | Bright Drawn | EN3B | Mechanical Equipment |
| 65 | 26.05 | 3000–6000 | Bright Drawn | EN3B | General Engineering |
| 70 | 30.21 | 3000–6000 | Bright Drawn | EN3B | Industrial Components |
| 75 | 34.69 | 3000–6000 | Bright Drawn | EN3B | Heavy Engineering |
| 80 | 39.46 | 3000–6000 | Bright Drawn | EN3B | Structural Machinery |
| 85 | 44.55 | 3000–6000 | Bright Drawn | EN3B | Manufacturing Equipment |
| 90 | 49.94 | 3000–6000 | Bright Drawn | EN3B | Mechanical Systems |
| 95 | 55.64 | 3000–6000 | Bright Drawn | EN3B | Industrial Machinery |
| 100 | 61.65 | 3000–6000 | Bright Drawn | EN3B | Heavy Machine Shafts |
| 110 | 74.59 | 3000–6000 | Bright Drawn | EN3B | Engineering Equipment |
| 125 | 96.33 | 3000–6000 | Bright Drawn | EN3B | Heavy Components |
| 140 | 120.87 | 3000–6000 | Bright Drawn | EN3B | Industrial Systems |
| 150 | 138.72 | 3000–6000 | Bright Drawn | EN3B | Heavy Machinery |
| 160 | 157.83 | 3000–6000 | Bright Drawn | EN3B | Manufacturing Plants |
| 180 | 199.78 | 3000–6000 | Bright Drawn | EN3B | Mining Equipment |
| 200 | 246.60 | 3000–6000 | Bright Drawn | EN3B | Heavy Engineering |
| 220 | 298.39 | 3000–6000 | Bright Drawn | EN3B | Industrial Machinery |
| 250 | 385.31 | 3000–6000 | Bright Drawn | EN3B | Large Equipment |
| 300 | 554.85 | 3000–6000 | Bright Drawn | EN3B | Forged Components |
EN14 Hard Chrome Plated Steel Round Bar
EN14 Hard Chrome Plated Steel Round Bar is a high-strength chromium-molybdenum alloy engineering steel designed for applications requiring improved wear resistance, corrosion protection, surface hardness and excellent dimensional accuracy. The hard chrome plating process provides a smooth, durable surface finish with enhanced resistance to abrasion, making it ideal for hydraulic and precision mechanical applications.
EN14 combines the strength and toughness of a medium alloy steel core with the benefits of a hard chrome plated surface. It is widely used where components require reduced friction, extended service life and resistance to wear under demanding operating conditions. The chrome plated surface provides improved hardness and protection against corrosion while maintaining excellent machinability of the core material.
EN14 Hard Chrome Plated Steel Round Bar is commonly specified for hydraulic piston rods, hydraulic cylinders, linear motion shafts, guide rods, precision shafts, pneumatic equipment, manufacturing machinery and heavy-duty engineering applications where accurate dimensions and reliable performance are essential.
| Diameter (mm) | Weight (kg/m) | Length (mm) | Condition | Grade | Typical Application |
|---|---|---|---|---|---|
| 12 | 0.89 | 3000–6000 | Hard Chrome Plated | EN14 | Guide Rods |
| 16 | 1.58 | 3000–6000 | Hard Chrome Plated | EN14 | Precision Shafts |
| 20 | 2.47 | 3000–6000 | Hard Chrome Plated | EN14 | Hydraulic Components |
| 25 | 3.85 | 3000–6000 | Hard Chrome Plated | EN14 | Piston Rods |
| 30 | 5.55 | 3000–6000 | Hard Chrome Plated | EN14 | Hydraulic Cylinders |
| 35 | 7.55 | 3000–6000 | Hard Chrome Plated | EN14 | Linear Shafts |
| 40 | 9.87 | 3000–6000 | Hard Chrome Plated | EN14 | Hydraulic Equipment |
| 45 | 12.49 | 3000–6000 | Hard Chrome Plated | EN14 | Mechanical Shafts |
| 50 | 15.42 | 3000–6000 | Hard Chrome Plated | EN14 | Heavy Hydraulic Systems |
| 55 | 18.66 | 3000–6000 | Hard Chrome Plated | EN14 | Industrial Machinery |
| 60 | 22.20 | 3000–6000 | Hard Chrome Plated | EN14 | Cylinder Rods |
| 65 | 26.05 | 3000–6000 | Hard Chrome Plated | EN14 | Engineering Components |
| 70 | 30.21 | 3000–6000 | Hard Chrome Plated | EN14 | Industrial Systems |
| 75 | 34.69 | 3000–6000 | Hard Chrome Plated | EN14 | Hydraulic Applications |
| 80 | 39.46 | 3000–6000 | Hard Chrome Plated | EN14 | Heavy Machinery |
| 85 | 44.55 | 3000–6000 | Hard Chrome Plated | EN14 | Precision Equipment |
| 90 | 49.94 | 3000–6000 | Hard Chrome Plated | EN14 | Mechanical Systems |
| 100 | 61.65 | 3000–6000 | Hard Chrome Plated | EN14 | Hydraulic Presses |
| 110 | 74.59 | 3000–6000 | Hard Chrome Plated | EN14 | Industrial Cylinders |
| 125 | 96.33 | 3000–6000 | Hard Chrome Plated | EN14 | Heavy Hydraulic Equipment |
| 140 | 120.87 | 3000–6000 | Hard Chrome Plated | EN14 | Industrial Machinery |
| 150 | 138.72 | 3000–6000 | Hard Chrome Plated | EN14 | Heavy Engineering |
| 160 | 157.83 | 3000–6000 | Hard Chrome Plated | EN14 | Large Hydraulic Systems |
| 180 | 199.78 | 3000–6000 | Hard Chrome Plated | EN14 | Heavy Industrial Equipment |
| 200 | 246.60 | 3000–6000 | Hard Chrome Plated | EN14 | Large Hydraulic Applications |
EN1A Free Cutting Mild Steel Round Bar (220M07 / 230M07)
EN1A Free Cutting Mild Steel Round Bar (220M07 / 230M07) is a low carbon free machining steel specifically developed for high-speed machining operations where excellent chip formation, reduced tool wear and increased production efficiency are required. The controlled sulphur content improves machinability, allowing faster cutting speeds and extended tool life compared with standard mild steel grades.
EN1A is one of the most widely used free cutting steels in the UK precision engineering industry due to its excellent machinability, good dimensional accuracy and consistent performance during turning, drilling, threading and automatic machining processes. It is commonly used for high-volume production components where manufacturing efficiency and repeatable quality are essential.
Typical applications include CNC machined components, fasteners, shafts, bushes, pins, spacers, fittings, connectors, valves, precision parts and general engineering components. EN1A is particularly suitable for automatic screw machining and mass production applications where reduced machining time is a priority.
Chargentum supplies premium EN1A Free Cutting Mild Steel Round Bar (220M07 / 230M07) in a comprehensive range of diameters, manufactured to engineering standards and supplied with full mill certification (EN 10204 3.1). All material is available with reliable UK delivery for precision engineering, manufacturing and industrial applications.
| Diameter (mm) | Weight (kg/m) | Length (mm) | Condition | Grade | Typical Application |
|---|---|---|---|---|---|
| 6 | 0.22 | 3000–6000 | Bright Drawn | EN1A (220M07/230M07) | Precision Pins |
| 8 | 0.39 | 3000–6000 | Bright Drawn | EN1A (220M07/230M07) | Small Components |
| 10 | 0.62 | 3000–6000 | Bright Drawn | EN1A (220M07/230M07) | Automatic Machining |
| 12 | 0.89 | 3000–6000 | Bright Drawn | EN1A (220M07/230M07) | Small Shafts |
| 14 | 1.21 | 3000–6000 | Bright Drawn | EN1A (220M07/230M07) | Precision Parts |
| 16 | 1.58 | 3000–6000 | Bright Drawn | EN1A (220M07/230M07) | Bushes |
| 18 | 2.00 | 3000–6000 | Bright Drawn | EN1A (220M07/230M07) | Turned Components |
| 20 | 2.47 | 3000–6000 | Bright Drawn | EN1A (220M07/230M07) | Fasteners |
| 25 | 3.85 | 3000–6000 | Bright Drawn | EN1A (220M07/230M07) | Precision Machining |
| 30 | 5.55 | 3000–6000 | Bright Drawn | EN1A (220M07/230M07) | Shafts |
| 35 | 7.55 | 3000–6000 | Bright Drawn | EN1A (220M07/230M07) | Engineering Components |
| 40 | 9.87 | 3000–6000 | Bright Drawn | EN1A (220M07/230M07) | Machine Parts |
| 45 | 12.49 | 3000–6000 | Bright Drawn | EN1A (220M07/230M07) | Precision Components |
| 50 | 15.42 | 3000–6000 | Bright Drawn | EN1A (220M07/230M07) | Fittings |
| 55 | 18.66 | 3000–6000 | Bright Drawn | EN1A (220M07/230M07) | Industrial Components |
| 60 | 22.20 | 3000–6000 | Bright Drawn | EN1A (220M07/230M07) | Machined Parts |
| 65 | 26.05 | 3000–6000 | Bright Drawn | EN1A (220M07/230M07) | General Engineering |
| 70 | 30.21 | 3000–6000 | Bright Drawn | EN1A (220M07/230M07) | Production Components |
| 75 | 34.69 | 3000–6000 | Bright Drawn | EN1A (220M07/230M07) | Industrial Parts |
| 80 | 39.46 | 3000–6000 | Bright Drawn | EN1A (220M07/230M07) | Heavy Machining |
| 90 | 49.94 | 3000–6000 | Bright Drawn | EN1A (220M07/230M07) | Machine Components |
| 100 | 61.65 | 3000–6000 | Bright Drawn | EN1A (220M07/230M07) | Large Precision Parts |
| 110 | 74.59 | 3000–6000 | Bright Drawn | EN1A (220M07/230M07) | Engineering Equipment |
| 125 | 96.33 | 3000–6000 | Bright Drawn | EN1A (220M07/230M07) | Heavy Components |
| 150 | 138.72 | 3000–6000 | Bright Drawn | EN1A (220M07/230M07) | Industrial Machinery |
EN1A Leaded Free Cutting Steel Round Bar (220M07 Leaded)
EN1A Leaded Free Cutting Steel Round Bar (220M07 Leaded) is a precision engineering steel enhanced with controlled lead additions to provide exceptional machinability, improved chip breaking and reduced cutting tool wear during high-speed machining operations. The addition of lead improves the cutting characteristics of the steel, making it particularly suitable for automatic machining and high-volume production environments.
EN1A Leaded is widely specified across the UK precision engineering sector where productivity, dimensional accuracy and consistent machining performance are critical. Compared with standard free cutting steels, the leaded grade provides smoother machining operations, improved surface finish and increased tool life, making it ideal for complex turned components and intricate machined parts.
Typical applications include CNC turned components, automatic lathe parts, precision fittings, connectors, bushes, screws, pins, valves, instrumentation components and general engineering parts requiring efficient production and excellent surface quality.
Chargentum supplies premium EN1A Leaded Free Cutting Steel Round Bar (220M07 Leaded) in a comprehensive range of diameters, manufactured to engineering standards and supplied with full mill certification (EN 10204 3.1). All material is available with reliable UK delivery for precision machining, manufacturing and industrial applications.
| Diameter (mm) | Weight (kg/m) | Length (mm) | Condition | Grade | Typical Application |
|---|---|---|---|---|---|
| 6 | 0.22 | 3000–6000 | Bright Drawn | EN1A Leaded (220M07 Pb) | Precision Pins |
| 8 | 0.39 | 3000–6000 | Bright Drawn | EN1A Leaded (220M07 Pb) | Small Turned Parts |
| 10 | 0.62 | 3000–6000 | Bright Drawn | EN1A Leaded (220M07 Pb) | Automatic Machining |
| 12 | 0.89 | 3000–6000 | Bright Drawn | EN1A Leaded (220M07 Pb) | Precision Components |
| 14 | 1.21 | 3000–6000 | Bright Drawn | EN1A Leaded (220M07 Pb) | Instrument Parts |
| 16 | 1.58 | 3000–6000 | Bright Drawn | EN1A Leaded (220M07 Pb) | Bushes |
| 18 | 2.00 | 3000–6000 | Bright Drawn | EN1A Leaded (220M07 Pb) | Machined Components |
| 20 | 2.47 | 3000–6000 | Bright Drawn | EN1A Leaded (220M07 Pb) | Fasteners |
| 25 | 3.85 | 3000–6000 | Bright Drawn | EN1A Leaded (220M07 Pb) | CNC Components |
| 30 | 5.55 | 3000–6000 | Bright Drawn | EN1A Leaded (220M07 Pb) | Precision Shafts |
| 35 | 7.55 | 3000–6000 | Bright Drawn | EN1A Leaded (220M07 Pb) | Engineering Parts |
| 40 | 9.87 | 3000–6000 | Bright Drawn | EN1A Leaded (220M07 Pb) | Machine Components |
| 45 | 12.49 | 3000–6000 | Bright Drawn | EN1A Leaded (220M07 Pb) | Turned Parts |
| 50 | 15.42 | 3000–6000 | Bright Drawn | EN1A Leaded (220M07 Pb) | Precision Fittings |
| 55 | 18.66 | 3000–6000 | Bright Drawn | EN1A Leaded (220M07 Pb) | Industrial Components |
| 60 | 22.20 | 3000–6000 | Bright Drawn | EN1A Leaded (220M07 Pb) | CNC Machined Parts |
| 65 | 26.05 | 3000–6000 | Bright Drawn | EN1A Leaded (220M07 Pb) | General Engineering |
| 70 | 30.21 | 3000–6000 | Bright Drawn | EN1A Leaded (220M07 Pb) | Production Components |
| 75 | 34.69 | 3000–6000 | Bright Drawn | EN1A Leaded (220M07 Pb) | Precision Machinery |
| 80 | 39.46 | 3000–6000 | Bright Drawn | EN1A Leaded (220M07 Pb) | Heavy Machining |
| 90 | 49.94 | 3000–6000 | Bright Drawn | EN1A Leaded (220M07 Pb) | Engineering Components |
| 100 | 61.65 | 3000–6000 | Bright Drawn | EN1A Leaded (220M07 Pb) | Large Machined Parts |
| 110 | 74.59 | 3000–6000 | Bright Drawn | EN1A Leaded (220M07 Pb) | Industrial Equipment |
| 125 | 96.33 | 3000–6000 | Bright Drawn | EN1A Leaded (220M07 Pb) | Heavy Components |
| 150 | 138.72 | 3000–6000 | Bright Drawn | EN1A Leaded (220M07 Pb) | Industrial Machinery |
EN8 Medium Carbon Steel Flats/Squares (080M40)
EN8 Medium Carbon Steel Flats and Squares (080M40) are widely used engineering steel products offering a strong combination of strength, toughness, machinability and durability. As a medium carbon steel grade, EN8 provides improved mechanical performance compared with mild steel while maintaining good fabrication and machining characteristics.
EN8 flat bar and square bar are commonly selected for applications requiring greater strength and wear resistance than low carbon steels. The material can be supplied in hot rolled, bright drawn or normalized conditions, making it suitable for machining, fabrication and general engineering applications.
Typical applications include machine bases, brackets, shafts, supports, frames, jigs, fixtures, tooling components, agricultural machinery, construction equipment and general industrial fabrications where reliable mechanical performance is required.
Chargentum supplies premium EN8 Medium Carbon Steel Flats and Squares (080M40) in a comprehensive range of dimensions, manufactured to engineering standards and supplied with full mill certification (EN 10204 3.1). All material is available with reliable UK delivery for manufacturing, fabrication and engineering industries.
EN8 Medium Carbon Steel Flat Bar
| Thickness (mm) | Width (mm) | Length (mm) | Weight (kg/Piece) | Condition | Grade | Typical Application |
|---|---|---|---|---|---|---|
| 5 | 25 | 3000 | 2.94 | Hot Rolled | EN8 (080M40) | Brackets |
| 5 | 30 | 3000 | 3.53 | Hot Rolled | EN8 (080M40) | Fabrication Parts |
| 6 | 40 | 3000 | 5.65 | Hot Rolled | EN8 (080M40) | Machine Supports |
| 8 | 40 | 3000 | 7.54 | Hot Rolled | EN8 (080M40) | Jigs & Fixtures |
| 8 | 50 | 3000 | 9.42 | Hot Rolled | EN8 (080M40) | Structural Components |
| 10 | 50 | 3000 | 11.78 | Hot Rolled | EN8 (080M40) | Machine Parts |
| 10 | 60 | 3000 | 14.13 | Hot Rolled | EN8 (080M40) | Engineering Frames |
| 12 | 50 | 3000 | 14.13 | Hot Rolled | EN8 (080M40) | Supports |
| 12 | 75 | 3000 | 21.20 | Hot Rolled | EN8 (080M40) | Machinery Components |
| 15 | 75 | 3000 | 26.49 | Hot Rolled | EN8 (080M40) | Heavy Supports |
| 16 | 100 | 3000 | 37.68 | Hot Rolled | EN8 (080M40) | Tooling Plates |
| 20 | 100 | 3000 | 47.10 | Hot Rolled | EN8 (080M40) | Machine Bases |
| 20 | 150 | 3000 | 70.65 | Hot Rolled | EN8 (080M40) | Heavy Fabrication |
| 25 | 100 | 3000 | 58.88 | Hot Rolled | EN8 (080M40) | Structural Components |
| 25 | 150 | 3000 | 88.31 | Hot Rolled | EN8 (080M40) | Industrial Equipment |
| 30 | 100 | 3000 | 70.65 | Hot Rolled | EN8 (080M40) | Heavy Machinery |
| 30 | 150 | 3000 | 105.98 | Hot Rolled | EN8 (080M40) | Engineering Frames |
| 40 | 150 | 3000 | 141.30 | Hot Rolled | EN8 (080M40) | Heavy Engineering |
| 40 | 200 | 3000 | 188.40 | Hot Rolled | EN8 (080M40) | Machine Structures |
| 50 | 150 | 3000 | 176.63 | Hot Rolled | EN8 (080M40) | Industrial Machinery |
| 50 | 200 | 3000 | 235.50 | Hot Rolled | EN8 (080M40) | Heavy Equipment |
EN8 Medium Carbon Steel Square Bar
| Size (mm) | Length (mm) | Weight (kg/m) | Condition | Grade | Typical Application |
|---|---|---|---|---|---|
| 10 × 10 | 3000–6000 | 0.79 | Bright Drawn | EN8 (080M40) | Small Components |
| 15 × 15 | 3000–6000 | 1.77 | Bright Drawn | EN8 (080M40) | Machined Parts |
| 20 × 20 | 3000–6000 | 3.14 | Bright Drawn | EN8 (080M40) | Fixtures |
| 25 × 25 | 3000–6000 | 4.91 | Bright Drawn | EN8 (080M40) | Machine Parts |
| 30 × 30 | 3000–6000 | 7.07 | Bright Drawn | EN8 (080M40) | Shafts & Blocks |
| 40 × 40 | 3000–6000 | 12.56 | Bright Drawn | EN8 (080M40) | Engineering Components |
| 50 × 50 | 3000–6000 | 19.63 | Bright Drawn | EN8 (080M40) | Heavy Machinery |
| 60 × 60 | 3000–6000 | 28.26 | Bright Drawn | EN8 (080M40) | Industrial Components |
| 75 × 75 | 3000–6000 | 44.16 | Bright Drawn | EN8 (080M40) | Heavy Engineering |
| 100 × 100 | 3000–6000 | 78.50 | Bright Drawn | EN8 (080M40) | Large Machine Components |
EN8 Medium Carbon Steel Round Bar (080M40)
EN8 Medium Carbon Steel Round Bar (080M40) is one of the most widely used medium carbon engineering steels in the UK, offering an excellent balance of strength, toughness, machinability and wear resistance. With a higher carbon content than mild steel grades, EN8 provides improved mechanical properties while maintaining good machinability and fabrication characteristics.
EN8 is commonly supplied in the untreated, normalized or bright drawn condition and can be further heat treated to achieve increased strength and hardness for demanding engineering applications. It is widely used where higher strength is required compared with low carbon steels, making it suitable for shafts, axles, gears, studs, pins, rollers, machinery components and general engineering parts.
The combination of good tensile strength, impact resistance and machinability makes EN8 a versatile choice across automotive, manufacturing, agricultural, construction equipment, power transmission and general engineering industries.
Chargentum supplies premium EN8 Medium Carbon Steel Round Bar (080M40) in a comprehensive range of diameters, manufactured to UK engineering standards and supplied with full mill certification (EN 10204 3.1). All material is available in standard stock lengths with reliable UK delivery for machining, fabrication and industrial applications.
| Diameter (mm) | Weight (kg/m) | Length (mm) | Condition | Grade | Typical Application |
|---|---|---|---|---|---|
| 10 | 0.62 | 3000–6000 | Bright Drawn | EN8 (080M40) | Small Shafts |
| 12 | 0.89 | 3000–6000 | Bright Drawn | EN8 (080M40) | Pins |
| 16 | 1.58 | 3000–6000 | Bright Drawn | EN8 (080M40) | Bushes |
| 20 | 2.47 | 3000–6000 | Bright Drawn | EN8 (080M40) | Machine Components |
| 25 | 3.85 | 3000–6000 | Bright Drawn | EN8 (080M40) | Shafts |
| 30 | 5.55 | 3000–6000 | Bright Drawn | EN8 (080M40) | Rollers |
| 35 | 7.55 | 3000–6000 | Bright Drawn | EN8 (080M40) | Engineering Pins |
| 40 | 9.87 | 3000–6000 | Bright Drawn | EN8 (080M40) | Drive Shafts |
| 45 | 12.49 | 3000–6000 | Bright Drawn | EN8 (080M40) | Couplings |
| 50 | 15.42 | 3000–6000 | Bright Drawn | EN8 (080M40) | Machine Parts |
| 55 | 18.66 | 3000–6000 | Bright Drawn | EN8 (080M40) | Rollers |
| 60 | 22.20 | 3000–6000 | Bright Drawn | EN8 (080M40) | Hydraulic Components |
| 65 | 26.05 | 3000–6000 | Bright Drawn | EN8 (080M40) | Mechanical Parts |
| 70 | 30.21 | 3000–6000 | Bright Drawn | EN8 (080M40) | Industrial Components |
| 75 | 34.69 | 3000–6000 | Bright Drawn | EN8 (080M40) | Heavy Engineering |
| 80 | 39.46 | 3000–6000 | Bright Drawn | EN8 (080M40) | Machine Shafts |
| 85 | 44.55 | 3000–6000 | Bright Drawn | EN8 (080M40) | Manufacturing Equipment |
| 90 | 49.94 | 3000–6000 | Bright Drawn | EN8 (080M40) | Industrial Systems |
| 100 | 61.65 | 3000–6000 | Bright Drawn | EN8 (080M40) | Heavy Shafts |
| 110 | 74.59 | 3000–6000 | Bright Drawn | EN8 (080M40) | Power Transmission |
| 125 | 96.33 | 3000–6000 | Bright Drawn | EN8 (080M40) | Heavy Components |
| 140 | 120.87 | 3000–6000 | Bright Drawn | EN8 (080M40) | Industrial Machinery |
| 150 | 138.72 | 3000–6000 | Bright Drawn | EN8 (080M40) | Heavy Engineering |
| 160 | 157.83 | 3000–6000 | Bright Drawn | EN8 (080M40) | Mechanical Systems |
| 180 | 199.78 | 3000–6000 | Bright Drawn | EN8 (080M40) | Large Machinery |
| 200 | 246.60 | 3000–6000 | Bright Drawn | EN8 (080M40) | Heavy Industrial Equipment |
| 220 | 298.39 | 3000–6000 | Bright Drawn | EN8 (080M40) | Power Equipment |
| 250 | 385.31 | 3000–6000 | Bright Drawn | EN8 (080M40) | Heavy Engineering |
EN8 Hard Chrome Plated Steel Round Bar (080M40)
EN8 Hard Chrome Plated Steel Round Bar (080M40) combines the strength and toughness of medium carbon steel with a precision hard chrome plated surface finish, providing excellent wear resistance, improved corrosion protection, reduced friction and extended service life.
Manufactured from EN8 (080M40) medium carbon steel core material, chrome plated round bar offers high tensile strength with a smooth, hardened chromium surface. The chrome layer provides improved resistance against abrasion, corrosion and mechanical wear, making it ideal for applications involving sliding movement, hydraulic operation and precision guidance.
EN8 Hard Chrome Plated Steel Round Bar is widely used in hydraulic cylinders, piston rods, pneumatic systems, linear motion equipment, automation machinery, agricultural machinery, construction equipment and industrial engineering applications where accurate dimensions and durable surface performance are required.
The precision chrome plated surface provides excellent dimensional accuracy, improved surface finish and reduced maintenance requirements, making it a preferred choice for demanding mechanical applications.
Chargentum supplies premium EN8 Hard Chrome Plated Steel Round Bar (080M40) in a comprehensive range of diameters and lengths, manufactured to recognised engineering standards and supplied with full mill certification (EN 10204 3.1). All material is available with reliable UK delivery for hydraulic, manufacturing and engineering industries.
| Diameter (mm) | Weight (kg/m) | Length (mm) | Condition | Grade | Typical Application |
|---|---|---|---|---|---|
| 12 | 0.89 | 3000–6000 | Hard Chrome Plated | EN8 (080M40) | Small Hydraulic Rods |
| 16 | 1.58 | 3000–6000 | Hard Chrome Plated | EN8 (080M40) | Pneumatic Components |
| 20 | 2.47 | 3000–6000 | Hard Chrome Plated | EN8 (080M40) | Hydraulic Pistons |
| 25 | 3.85 | 3000–6000 | Hard Chrome Plated | EN8 (080M40) | Cylinder Rods |
| 30 | 5.55 | 3000–6000 | Hard Chrome Plated | EN8 (080M40) | Hydraulic Equipment |
| 35 | 7.55 | 3000–6000 | Hard Chrome Plated | EN8 (080M40) | Linear Motion Systems |
| 40 | 9.87 | 3000–6000 | Hard Chrome Plated | EN8 (080M40) | Hydraulic Cylinders |
| 45 | 12.49 | 3000–6000 | Hard Chrome Plated | EN8 (080M40) | Industrial Machinery |
| 50 | 15.42 | 3000–6000 | Hard Chrome Plated | EN8 (080M40) | Heavy Hydraulic Systems |
| 55 | 18.66 | 3000–6000 | Hard Chrome Plated | EN8 (080M40) | Mechanical Actuators |
| 60 | 22.20 | 3000–6000 | Hard Chrome Plated | EN8 (080M40) | Construction Equipment |
| 65 | 26.05 | 3000–6000 | Hard Chrome Plated | EN8 (080M40) | Industrial Components |
| 70 | 30.21 | 3000–6000 | Hard Chrome Plated | EN8 (080M40) | Hydraulic Machinery |
| 75 | 34.69 | 3000–6000 | Hard Chrome Plated | EN8 (080M40) | Heavy Engineering |
| 80 | 39.46 | 3000–6000 | Hard Chrome Plated | EN8 (080M40) | Large Hydraulic Systems |
| 90 | 49.94 | 3000–6000 | Hard Chrome Plated | EN8 (080M40) | Industrial Presses |
| 100 | 61.65 | 3000–6000 | Hard Chrome Plated | EN8 (080M40) | Heavy Machinery |
| 110 | 74.59 | 3000–6000 | Hard Chrome Plated | EN8 (080M40) | Large Hydraulic Equipment |
| 125 | 96.33 | 3000–6000 | Hard Chrome Plated | EN8 (080M40) | Industrial Systems |
| 140 | 120.87 | 3000–6000 | Hard Chrome Plated | EN8 (080M40) | Heavy Hydraulic Applications |
| 150 | 138.72 | 3000–6000 | Hard Chrome Plated | EN8 (080M40) | Large Engineering Systems |
Download Full Engineering Steel Datasheet
Download the complete technical datasheet for Engineering Steel including:
- Chemical composition and mechanical properties
- Delivery conditions, tolerances and finishes
- Dimension, weight and grade tables for flat bars, round bars, squares and chrome plated bars
- Engineering standards and typical applications
EXPLORE MORE ABOUT CHARGENTUM’S STRUCTURAL STEEL, ENGINEERING STEEL, ALLOY STEEL, PERFORATED SHEETS, SEAMLESS TUBES, TOOL STEEL, STAINLESS STEEL, BRASS, COPPER, ALUMINIUM, GREEN STEEL AND METAL GRADES & SPECIFICATIONS
Engineering Steel
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