DC53 is a modified D2-type steel with higher toughness and tempering response (60–64 HRC). DC53 survives chipping-prone applications better; D2 is cheaper and universally stocked.

What hardness should D2 be used at?

58–62 HRC for cutting dies; 56–58 HRC where impact loading dominates.

Grades · Tool Steel · D2

D2

Data verified

D2 is the world-standard high-carbon, high-chromium cold work tool steel. Massive chromium carbides give exceptional abrasive wear resistance and long die life in blanking and forming.

Hardness58–62 HRC

DIN1.2379

AISID2

JISSKD11

CategoryTool Steel

Chemical composition

Element	Content (%)
C	1.45–1.60
Si	0.10–0.60
Mn	0.20–0.60
Cr	11.00–13.00
Mo	0.70–1.00
V	0.70–1.00

Weight percent, per the governing standard ranges. Actual values per heat are on the mill certificate.

Properties

Delivery condition	Annealed
Hardness (hardened)	58–62 HRC
Density	7.70 g/cm³
Wear resistance	Very high

Heat treatment

Anneal 840–870 °C slow cool; harden 1020–1040 °C air/oil; temper 180–220 °C (or 500–520 °C for hot-work stability).

Equivalent grades

Standard	Designation
din	1.2379
aisi	D2
jis	SKD11
gb	Cr12Mo1V1

Compare side by side: D2 vs SKD11 · D2 vs D3 · D2 vs DC53

Equivalents overlap in chemistry and use but are not always identical — see our equivalents guide before substituting in certified designs.

Applications & Processing

Applications: Blanking and punching dies, shear blades, cold extrusion dies, thread rolling dies, slitters.

Processing: Poor machinability annealed; grind after hardening; air hardening gives low distortion. EDM requires care to avoid surface micro-cracks.

FAQ

D2 vs DC53?: DC53 is a modified D2-type steel with higher toughness and tempering response (60–64 HRC). DC53 survives chipping-prone applications better; D2 is cheaper and universally stocked.
What hardness should D2 be used at?: 58–62 HRC for cutting dies; 56–58 HRC where impact loading dominates.

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Source: 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.