AISI 1040 Steel — Specifications & Listings
SAE/AISI — Medium carbon steel, widely used in machined parts
Grade Details
| Grade | AISI 1040 |
| Standard | SAE/AISI |
| Description | Medium carbon steel, widely used in machined parts |
| Applications | Shafts, gears, bolts, couplings, crankshafts |
Equivalent / Similar Grades
Chemical Composition (%)
| C |
Mn |
S |
P |
| 0.37–0.44 |
0.60–0.90 |
≤0.050 |
≤0.040 |
Mechanical Properties
| Tensile Strength |
620–770 MPa |
| Yield Strength |
≥415 MPa |
| Elongation |
≥13% |
| Hardness |
179–235 HB |
Typical Available Sizes
| Round Bar |
10mm–250mm dia |
| Flat Bar |
16×5mm–200×50mm |
| Hex Bar |
13mm–100mm A/F |
Sizes are indicative. Contact seller for exact availability.
Active AISI 1040 Listings on M-EX