DC53
Data verifiedDC53 is Daido’s improved cold work steel: a rebalanced D2-type chemistry (less carbon and chromium, more molybdenum) that reaches 60–64 HRC with roughly double the toughness of D2 and excellent high-temperature tempering response.
Chemical composition
| Element | Content (%) |
|---|---|
| C | 0.90–1.10 |
| Si | 0.80–1.20 |
| Mn | 0.20–0.50 |
| Cr | 7.80–8.50 |
| Mo | 1.80–2.20 |
| V | 0.20–0.40 |
Weight percent, per the governing standard ranges. Actual values per heat are on the mill certificate.
Properties
| Delivery condition | Annealed |
| Hardness (hardened) | 60–64 HRC |
| Density | 7.70 g/cm³ |
| Toughness | ≈2× D2 (maker data) |
Heat treatment
Harden 1020–1050 °C air; temper 520–540 °C for 62–64 HRC with best toughness.
Equivalent grades
| Standard | Designation |
|---|---|
| din | — (modified 1.2379 type) |
| aisi | — (modified D2 type) |
| jis | — (Daido proprietary) |
Compare side by side: DC53 vs D2 · DC53 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: High-precision punches and dies, cold forging tools, wire-EDM parts, applications where D2 chips.
Processing: Better machinability and EDM behavior than D2; high-temperature temper removes the brittle EDM white layer effectively.
FAQ
- Why is DC53 more expensive than D2?
- It is a proprietary mill grade with tighter processing; the premium pays back where die chipping or EDM cracking scrap D2 tools.
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Ask for a quotationVisit NasteelSource: Daido Steel published data · Last updated 2026-11-03. Data is indicative — verify critical values against the governing standard and mill certificate before use.