SAE AISI 4140 Steel Properties, Material Heat Treatment, Rockwell Hardness vs SAE AISI 4340 Steel Properties, Heat Treatment, Equivalent, Hardness Chart, Density, Machinability
Ratings Comparison
Strength
SAE AISI 4140 Steel Properties, Material Heat Treatment, Rockwell Hardness
8/10
SAE AISI 4340 Steel Properties, Heat Treatment, Equivalent, Hardness Chart, Density, Machinability
5/10
Corrosion Resistance
SAE AISI 4140 Steel Properties, Material Heat Treatment, Rockwell Hardness
3/10
SAE AISI 4340 Steel Properties, Heat Treatment, Equivalent, Hardness Chart, Density, Machinability
3/10
Lightweight
SAE AISI 4140 Steel Properties, Material Heat Treatment, Rockwell Hardness
5/10
SAE AISI 4340 Steel Properties, Heat Treatment, Equivalent, Hardness Chart, Density, Machinability
5/10
Machinability
SAE AISI 4140 Steel Properties, Material Heat Treatment, Rockwell Hardness
4/10
SAE AISI 4340 Steel Properties, Heat Treatment, Equivalent, Hardness Chart, Density, Machinability
6/10
Cost Efficiency
SAE AISI 4140 Steel Properties, Material Heat Treatment, Rockwell Hardness
9/10
SAE AISI 4340 Steel Properties, Heat Treatment, Equivalent, Hardness Chart, Density, Machinability
9/10
Temperature Resistance
SAE AISI 4140 Steel Properties, Material Heat Treatment, Rockwell Hardness
7/10
SAE AISI 4340 Steel Properties, Heat Treatment, Equivalent, Hardness Chart, Density, Machinability
7/10
Properties Comparison
| Property | SAE AISI 4140 Steel Properties, Material Heat Treatment, Rockwell Hardness | SAE AISI 4340 Steel Properties, Heat Treatment, Equivalent, Hardness Chart, Density, Machinability |
|---|---|---|
| Metal Base | Steel | Steel |
| Tensile Strength | 1020.0 MPa | — |
| Yield Strength | 655.0 MPa | — |
| Elongation | 17.7 % | — |
| Hardness (Brinell) | 302.0 HB | — |
| Elastic Modulus | — | — |
| Density | — | — |
| Melting Point | — | — |
| Thermal Conductivity | — | — |
| Weldable | — | — |
| Heat Treatable | — | — |
| Magnetic | — | — |