AA 7068 Aluminum Alloy vs SAE AISI 4140 Steel Properties, Material Heat Treatment, Rockwell Hardness
Ratings Comparison
Strength
AA 7068 Aluminum Alloy
6/10
SAE AISI 4140 Steel Properties, Material Heat Treatment, Rockwell Hardness
8/10
Corrosion Resistance
AA 7068 Aluminum Alloy
6/10
SAE AISI 4140 Steel Properties, Material Heat Treatment, Rockwell Hardness
3/10
Lightweight
AA 7068 Aluminum Alloy
9/10
SAE AISI 4140 Steel Properties, Material Heat Treatment, Rockwell Hardness
5/10
Machinability
AA 7068 Aluminum Alloy
8/10
SAE AISI 4140 Steel Properties, Material Heat Treatment, Rockwell Hardness
4/10
Cost Efficiency
AA 7068 Aluminum Alloy
7/10
SAE AISI 4140 Steel Properties, Material Heat Treatment, Rockwell Hardness
9/10
Temperature Resistance
AA 7068 Aluminum Alloy
4/10
SAE AISI 4140 Steel Properties, Material Heat Treatment, Rockwell Hardness
7/10
Properties Comparison
| Property | AA 7068 Aluminum Alloy | SAE AISI 4140 Steel Properties, Material Heat Treatment, Rockwell Hardness |
|---|---|---|
| Metal Base | Aluminum | Steel |
| Tensile Strength | 623.0 MPa | 1020.0 MPa |
| Yield Strength | — | 655.0 MPa |
| Elongation | 4.3 % | 17.7 % |
| Hardness (Brinell) | — | 302.0 HB |
| Elastic Modulus | — | — |
| Density | — | — |
| Melting Point | — | — |
| Thermal Conductivity | — | — |
| Weldable | — | — |
| Heat Treatable | — | — |
| Magnetic | — | — |