EN8 Bright Bar Manufacturer & Supplier
The workhorse medium carbon bar. Strong enough for shafts, keys and gears straight from stock, and responsive to through hardening or induction hardening when the wear surface needs it.
UNS: 080M40 / C45 | Category: Carbon Steel
Size Range
Outer Diameter: Diameter 5-120 mm · Round, square, hexagon & flat sections
Chemical Composition (%)
| C | Mn | S | P | Si |
|---|---|---|---|---|
| 0.36-0.44 | 0.60-1.00 | 0.05 max | 0.05 max | 0.10-0.40 |
Mechanical Properties
- Tensile Strength
- 620-780 MPa (cold drawn)
- Yield Strength
- 465 MPa min
- Elongation
- 10%
- Impact
- 28 J typical
Applicable Standards
- EN 10277-2 (bright steel for general engineering)
- EN 10278 (dimensions & tolerances)
- BS 970 Part 3
- IS 1570
- ASTM A108 / A29
- EN 10204 3.1 certification
Applications
- Shafts & axles
- Keys & keyways
- Gears & sprockets
- Studs & bolts
- Machine tool components
Industries Served
- Automotive & Auto Components
- Fasteners
- Hydraulics & Pneumatics
- General Engineering
- Textile Machinery
- Pumps & Valves
Equivalent Grades
- AISI / SAE
- AISI 1040 / AISI 1045
- EN
- C45
- Werkstoff / DIN
- 1.0503
- IS
- IS 1570 40C8