1.2316
Data verified1.2316 is a prehardened stainless mold steel with about 17% chromium and molybdenum for improved corrosion resistance over 1.2083. It is specified for molds processing PVC and other corrosive plastics in humid environments.
Chemical composition
| Element | Content (%) |
|---|---|
| C | 0.33–0.43 |
| Si | ≤1.00 |
| Mn | ≤1.00 |
| Cr | 15.50–17.50 |
| Mo | 0.80–1.30 |
| Ni | ≤1.00 |
Weight percent, per the governing standard ranges. Actual values per heat are on the mill certificate.
Properties
| Delivery condition | Prehardened |
| Hardness | 265–310 HB |
| Density | 7.70 g/cm³ |
| Corrosion resistance | Very good (17% Cr stainless) |
Heat treatment
Supplied prehardened. Re-hardening if needed: quench 1020–1050 °C oil, temper 550–620 °C.
Equivalent grades
| Standard | Designation |
|---|---|
| din | 1.2316 |
| aisi | 420 mod. (X36CrMo17) |
| gb | 3Cr17Mo (near) |
Compare side by side: 1.2316 vs 1.2083
Equivalents overlap in chemistry and use but are not always identical — see our equivalents guide before substituting in certified designs.
Applications & Processing
Applications: PVC pipe and profile molds, molds for corrosive plastics, food and packaging tooling, cavity plates in humid plants.
Processing: Polishability is good but a step below ESR 1.2083; the prehardened delivery avoids hardening distortion on large corrosive-duty molds.
FAQ
- 1.2316 or 1.2083 for a PVC mold?
- 1.2083 hardens to ~50 HRC for cavity wear and mirror polish; 1.2316 comes prehardened (~300 HB), resists corrosion better and suits large molds and plates where maximum cavity hardness is not needed.
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Ask for a quotationVisit NasteelSource: DIN / EN ISO 4957 published ranges · Last updated 2026-11-03. Data is indicative — verify critical values against the governing standard and mill certificate before use.