1524 vs 1541
These two grades are listed as equivalents of each other: their chemistry windows overlap and they serve the same applications. They are not always identical — check the differences below before substituting, especially in certified designs.
1524
Carbon Steel
1524 is a low carbon steel with 1.35–1.65% manganese, giving noticeably better hardenability and core strength than 1020/1022. It is a cost-effective carburizing steel for larger case-hardened parts.
Standards: AISI 1524 · GB 20Mn (near)
1541
Carbon Steel
1541 upgrades 1040-class carbon with high manganese, the cheapest way to buy hardenability in a plain steel. It is widely used for axles, shafts and bolts in North American bar programs.
Standards: AISI 1541 · JIS SMn438 family (near) · GB 40Mn (near)
Chemical composition compared (%)
| Element | 1524 | 1541 |
|---|---|---|
| C | 0.19–0.25 | 0.36–0.44 |
| Mn | 1.35–1.65 | 1.35–1.65 |
| P | ≤0.040 | ≤0.040 |
| S | ≤0.050 | ≤0.050 |
Properties compared
| Property | 1524 | 1541 |
|---|---|---|
| Tensile strength | 440–540 MPa (hot rolled, typ.) | 600–720 MPa (normalized, typ.) |
| Density | 7.85 g/cm³ | 7.85 g/cm³ |
Sourcing either grade?
Nasteel stocks both families from Shenzhen with EN 10204 3.1 mill certificates by heat number.
Ask for a quotationSee full data sheets: 1524 · 1541. Substitution decisions for certified parts stay with the design authority.