CK45 (EN 1.1191) / C45 / AISI 1045 is a medium carbon steel widely used for mechanical components requiring good strength and wear resistance. The material offers good machinability and can be heat treated to improve mechanical properties.
CK45 / C45 / AISI 1045
Medium carbon round bar with good machinability and balanced wear resistance.
CK45 (EN 1.1191) is widely used for mechanical components that need strength, wear resistance, and practical post-processing.
Key pointGood machinability for general machine parts.
Commonly chosen when the buyer wants a practical round bar for turning and finishing.
Product Summary
Practical carbon steel for everyday industrial machining.
The clean version below keeps the sourcing details buyers actually use in first-round technical review.
| EN | C45 / 1.1191 |
|---|---|
| ASTM | AISI 1045 |
| DIN | CK45 |
| JIS | S45C |
| GB | 45# |
| C | 0.42 - 0.50 |
|---|---|
| Si | 0.17 - 0.37 |
| Mn | 0.50 - 0.80 |
| Tensile strength | ≥ 600 MPa |
|---|---|
| Yield strength | ≥ 355 MPa |
| Elongation | ≥ 16% |
| Form | Round bar |
|---|---|
| Diameter | 20 - 350 mm |
| Length | 3 - 12 m |
| Condition | Hot rolled / Normalized / Annealed |
- Machine shafts
- Gears
- Bolts and studs
- Automotive components
- General machinery parts
- Hot rolled or normalized supply
- Annealed condition available
- Rough machining support
- Customized lengths on request
- Chemical composition
- Mechanical testing
- Dimensional inspection
- Surface condition review
Inquiry
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