SM3CR2MNNIMO
1 source records. Standards, editions and conditions are presented separately; matching grade names do not establish interchangeability.
Refer to each source for mass fractions and analysis type. Missing values are not treated as 0. Manufacturer typical values, standard guarantees and measured heat results must remain separate. Use the material selector for calculations and condition selection.
Open condition selection, comparison and carbon-equivalent tools for SM3CR2MNNIMO →SM3Cr2MnNiMo · YB /T 107-2013
Original-source verification is incomplete; this is not a formal standard reference
- Material category
- Tool steels
- Subcategory
- Tool steels
- Material form
- Reference record
- Verification status
- Reference data; original source not verified
Classification basis (does not replace original-source composition verification)
Classified under the listed standards for tool and die steels, alloy tool steel wire, or steel plates for plastic moulds; Chemical composition, edition and original-source verification status are retained.
Carbon-equivalent reference
Composition
| Element | Composition requirement |
|---|---|
| C | 0.32 ～ 0.4 |
| Cr | 1.7 ～ 2 |
| Cu | ≤ 0.25 (lower limit not stated) |
| Mo | 0.25 ～ 0.4 |
| Ni | 0.85 ～ 1.15 |
| P | ≤ 0.025 (lower limit not stated) |
| S | ≤ 0.025 (lower limit not stated) |
| Si | 0.2 ～ 0.4 |
Applicability and limitations
A match in the materials database does not establish suitability for cold heading or guarantee finished-product strength. Confirmation must consider wire condition, deformation, heat treatment and tests on actual parts.