EN8 Steel Properties BS970 080M40 Equivalent Material Tensile Yield Strength vs SAE AISI 4140 Steel Properties, Material Heat Treatment, Rockwell Hardness
Ratings Comparison
Strength
EN8 Steel Properties BS970 080M40 Equivalent Material Tensile Yield Strength
6/10
SAE AISI 4140 Steel Properties, Material Heat Treatment, Rockwell Hardness
8/10
Corrosion Resistance
EN8 Steel Properties BS970 080M40 Equivalent Material Tensile Yield Strength
3/10
SAE AISI 4140 Steel Properties, Material Heat Treatment, Rockwell Hardness
3/10
Lightweight
EN8 Steel Properties BS970 080M40 Equivalent Material Tensile Yield Strength
5/10
SAE AISI 4140 Steel Properties, Material Heat Treatment, Rockwell Hardness
5/10
Machinability
EN8 Steel Properties BS970 080M40 Equivalent Material Tensile Yield Strength
6/10
SAE AISI 4140 Steel Properties, Material Heat Treatment, Rockwell Hardness
4/10
Cost Efficiency
EN8 Steel Properties BS970 080M40 Equivalent Material Tensile Yield Strength
9/10
SAE AISI 4140 Steel Properties, Material Heat Treatment, Rockwell Hardness
9/10
Temperature Resistance
EN8 Steel Properties BS970 080M40 Equivalent Material Tensile Yield Strength
7/10
SAE AISI 4140 Steel Properties, Material Heat Treatment, Rockwell Hardness
7/10
Properties Comparison
| Property | EN8 Steel Properties BS970 080M40 Equivalent Material Tensile Yield Strength | SAE AISI 4140 Steel Properties, Material Heat Treatment, Rockwell Hardness |
|---|---|---|
| Metal Base | Steel | Steel |
| Tensile Strength | 550.0 MPa | 1020.0 MPa |
| Yield Strength | 280.0 MPa | 655.0 MPa |
| Elongation | 16.0 % | 17.7 % |
| Hardness (Brinell) | 152.0 HB | 302.0 HB |
| Elastic Modulus | — | — |
| Density | — | — |
| Melting Point | — | — |
| Thermal Conductivity | — | — |
| Weldable | — | — |
| Heat Treatable | — | — |
| Magnetic | — | — |