45# Steel
CNC Machining
Overview
45# steel is a medium carbon structural steel with good mechanical properties. It is widely used for manufacturing parts that require higher strength.
Mechanical Properties
| Tensile Strength | 600 MPa |
| Yield Strength | 355 MPa |
| Elongation | 16% |
| Hardness | 170-217 HB |
Physical Properties
| Density | 7,850 kg/m³ |
| Melting Point | 1,450-1,500°C |
Applications
Gears
Shafts
Bolts
Connecting rods
Machine parts
Advantages
- Good strength
- Cost-effective
- Widely available
- Heat treatable
Limitations
- Moderate corrosion resistance
- Requires surface treatment
- Not suitable for marine use
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