D3
Data verifiedD3 is an ultra-high-carbon chromium steel with even more carbide than D2 and no Mo/V additions. It maximizes abrasive wear life at the lowest cost, but with the lowest toughness of the D-family.
Chemical composition
| Element | Content (%) |
|---|---|
| C | 1.90–2.20 |
| Si | 0.10–0.60 |
| Mn | 0.20–0.60 |
| Cr | 11.00–13.00 |
Weight percent, per the governing standard ranges. Actual values per heat are on the mill certificate.
Properties
| Delivery condition | Annealed |
| Hardness (hardened) | 58–64 HRC |
| Density | 7.70 g/cm³ |
| Wear resistance | Extreme (abrasive) |
Heat treatment
Harden 940–980 °C oil; temper 180–250 °C. No molybdenum/vanadium secondary hardening.
Equivalent grades
| Standard | Designation |
|---|---|
| din | 1.2080 |
| aisi | D3 |
| jis | SKD1 |
| gb | Cr12 |
Compare side by side: D3 vs D2 · D3 vs SKD11
Equivalents overlap in chemistry and use but are not always identical — see our equivalents guide before substituting in certified designs.
Applications & Processing
Applications: Dies for abrasive materials (silicon steel, filled plastics), brick molds, powder compaction, deep drawing dies.
Processing: Difficult to machine and grind; brittle — avoid sharp internal corners and shock loading.
FAQ
- D3 or D2 for a blanking die?
- D2 for general blanking (better toughness, easier processing). D3 only when abrasive wear, not chipping, is the failure mode.
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Ask for a quotationVisit NasteelSource: ASTM A681 / EN published ranges · Last updated 2026-11-03. Data is indicative — verify critical values against the governing standard and mill certificate before use.