C45 / EN8 Carbon Steel Manufacturer & Supplier
The general engineering forging grade — 0.45% carbon, normalised or quenched and tempered to around 600 MPa. Used where strength matters more than toughness and the section is modest.
UNS: C45 / 1.0503 / EN8 | Category: Carbon Steel Forgings
Size Range
Outer Diameter: Round 60-600 mm · forged weight 5 kg to 3 T
Chemical Composition (%)
| C | Mn | Si | S | P |
|---|---|---|---|---|
| 0.42-0.50 | 0.50-0.80 | 0.10-0.40 | 0.035 max | 0.035 max |
Mechanical Properties
- Tensile Strength
- 600-750 MPa (Q&T)
- Yield Strength
- 370 MPa min
- Elongation
- 16% min
- Impact
- 25 J at room temperature
Applicable Standards
- ASTM A266
- ASTM A105
- EN 10250-2
- ASTM A388
- EN 10204 3.1
Applications
- General engineering shafts and spindles
- Gear and sprocket blanks
- Couplings and flange blanks
- Hydraulic cylinder ends
- Machine tool components
Industries Served
- Heavy Engineering
- Automotive & Auto Components
- Cement & Mining
- Railways & Metro
- Pumps & Valves
- General Engineering
Equivalent Grades
- 1.0503
- 1.0503
- C45
- C45
- EN8
- EN8
- SAE 1045
- SAE 1045
- IS 40C8
- IS 40C8