ASTM SAE AISI 1018 Carbon Steel Chemical Composition, Mechanical Properties vs SAE AISI 4140 Steel Properties, Material Heat Treatment, Rockwell Hardness
Ratings Comparison
Strength
ASTM SAE AISI 1018 Carbon Steel Chemical Composition, Mechanical Properties
5/10
SAE AISI 4140 Steel Properties, Material Heat Treatment, Rockwell Hardness
8/10
Corrosion Resistance
ASTM SAE AISI 1018 Carbon Steel Chemical Composition, Mechanical Properties
3/10
SAE AISI 4140 Steel Properties, Material Heat Treatment, Rockwell Hardness
3/10
Lightweight
ASTM SAE AISI 1018 Carbon Steel Chemical Composition, Mechanical Properties
5/10
SAE AISI 4140 Steel Properties, Material Heat Treatment, Rockwell Hardness
5/10
Machinability
ASTM SAE AISI 1018 Carbon Steel Chemical Composition, Mechanical Properties
6/10
SAE AISI 4140 Steel Properties, Material Heat Treatment, Rockwell Hardness
4/10
Cost Efficiency
ASTM SAE AISI 1018 Carbon Steel Chemical Composition, Mechanical Properties
9/10
SAE AISI 4140 Steel Properties, Material Heat Treatment, Rockwell Hardness
9/10
Temperature Resistance
ASTM SAE AISI 1018 Carbon Steel Chemical Composition, Mechanical Properties
7/10
SAE AISI 4140 Steel Properties, Material Heat Treatment, Rockwell Hardness
7/10
Properties Comparison
| Property | ASTM SAE AISI 1018 Carbon Steel Chemical Composition, Mechanical Properties | SAE AISI 4140 Steel Properties, Material Heat Treatment, Rockwell Hardness |
|---|---|---|
| Metal Base | Steel | Steel |
| Tensile Strength | 483.0 MPa | 1020.0 MPa |
| Yield Strength | 413.0 MPa | 655.0 MPa |
| Elongation | 18.0 % | 17.7 % |
| Hardness (Brinell) | 143.0 HB | 302.0 HB |
| Elastic Modulus | — | — |
| Density | — | — |
| Melting Point | — | — |
| Thermal Conductivity | — | — |
| Weldable | — | — |
| Heat Treatable | — | — |
| Magnetic | — | — |