2Cr13 vs 1.2083
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.
2Cr13
Stainless Steel
2Cr13 (new designation 20Cr13) is China’s 420-type martensitic stainless: a hardenable 13% chromium steel used Q&T for pump and valve shafts, fasteners and steam-turbine blades where moderate corrosion resistance meets real mechanical duty.
Standards: DIN 1.4021 (X20Cr13) · AISI 420 · JIS SUS420J1 · GB 2Cr13 (GB/T 1220) / 20Cr13 (GB/T 20878)
1.2083
Mold Steel
1.2083 is a martensitic stainless mold steel (420 type) combining corrosion resistance with high polishability. It is the default choice for molds running corrosive plastics such as PVC, and for medical and food-contact tooling.
Standards: DIN 1.2083 · AISI 420 · JIS SUS420J2 · GB 4Cr13
Chemical composition compared (%)
| Element | 2Cr13 | 1.2083 |
|---|---|---|
| C | 0.16–0.25 | 0.36–0.42 |
| Si | ≤1.00 | ≤1.00 |
| Mn | ≤1.00 | ≤1.00 |
| P | ≤0.040 | — |
| S | ≤0.030 | — |
| Cr | 12.00–14.00 | 12.50–14.50 |
| Ni | ≤0.60 | — |
Properties compared
| Property | 2Cr13 | 1.2083 |
|---|---|---|
| Delivery condition | Annealed | Annealed |
| Tensile strength | ≥640 MPa (Q&T, GB/T 1220) | — |
| Density | 7.70 g/cm³ | 7.70 g/cm³ |
| Magnetic | Yes | — |
| Hardness (hardened) | — | 48–54 HRC |
| Corrosion resistance | — | Good (stainless) |
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: 2Cr13 · 1.2083. Substitution decisions for certified parts stay with the design authority.