1035 vs 1030
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.
1035
Carbon Steel
1035 is a medium carbon steel for shafts and forged parts of moderate strength. It heat treats more reliably than 1030 and is a standard grade for studs, bolts and machine components across Asian and European supply chains.
Standards: DIN 1.0501 (C35) · AISI 1035 · JIS S35C · GB 35
1030
Carbon Steel
1030 is a medium carbon steel at the lower edge of the heat-treatable range: it responds to quenching in thin sections and to induction hardening on shafts. It is a widely used forging steel for automotive and agricultural parts.
Standards: DIN 1.0528 (C30) · AISI 1030 · JIS S30C · GB 30
Chemical composition compared (%)
| Element | 1035 | 1030 |
|---|---|---|
| C | 0.32–0.38 | 0.28–0.34 |
| Mn | 0.60–0.90 | 0.60–0.90 |
| P | ≤0.040 | ≤0.040 |
| S | ≤0.050 | ≤0.050 |
Properties compared
| Property | 1035 | 1030 |
|---|---|---|
| Tensile strength | 520–620 MPa (normalized, typ.) | 470–560 MPa (normalized, typ.) |
| Density | 7.85 g/cm³ | 7.85 g/cm³ |
| Hardness | — | 50+ HRC surface by induction (thin sections) |
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: 1035 · 1030. Substitution decisions for certified parts stay with the design authority.