Chinese Manufacturers of 1.2436/X210CrW12/D6 High Wear-resistant Cold Work Die Steel - Knowledge

Sichuan Huitai Special Metals Co.,Ltd produced 1.2436 Die Steel (X210CrW12/D6) is the first choice for high wear-resistant cold work die steel.It improves production efficiency and die life.

In the fields of cold work dies, precision stamping, and high wear-resistant tool manufacturing, 1.2436 die steel (German DIN standard X210CrW12, AISI D6, Chinese Cr12W) is recognized by manufacturers worldwide as the "king of wear resistance." With its ultra-high hardness, extreme wear resistance, excellent tempering stability, and dimensional accuracy, it has become a core material for stainless steel/silicon steel sheet stamping, wire drawing dies, cold extrusion dies, and precision cutting tools. Using 1.2436 material helps companies reduce die changeover frequency, minimize downtime losses, and improve product consistency.

1.2436 Die Steel: Core Definition and Equipment International Grades

1.2436 is a high-carbon, high-chromium tungsten-based cold work die steel according to the German DIN standard. It belongs to the ledeburitic chromium steel category.And its core design goals are extreme wear resistance, high compressive strength, and heat treatment stability.

German Grade: X210CrW12 (Material No. 1.2436)
American AISI: D6 (T30406)
Chinese GB: Cr12W
Japanese JIS: SKD2
Austrian Böhler: K107
Swedish UD: XW-5

Chemical Compositions:

C	Si	Mn	Cr	W	P/S
2.00–2.25	0.10–0.40	0.15–0.45	11.0–12.0	0.60–0.80	≤0.03

The golden ratio of high carbon (2.1%) + high chromium (12%) + tungsten (0.7%) forms high-density hard carbides, laying the foundation for wear resistance and hardness.

Four Core Performance Advantages: Why Global Factories Choose 1.2436?

Sichuan Huitai Special Metals-Professional technical team,Offer you the most suitable material

1.2436 steel

Ultimate Wear Resistance: 30%–50% longer lifespan than D2/A2.

Hardness reaches 58–63 HRC.

Extremely strong resistance to wear, galling, and abrasive erosion, suitable for long-term high-load friction scenarios (such as wire drawing, punching, and thread rolling).

12343 steel

Excellent Tempering Stability: Hardness does not decrease at high temperatures. Tungsten significantly enhances resistance to tempering softening: After tempering at 300°C, it still maintains 60 HRC, and at 400°C, it is ≥58 HRC. The die does not soften, deform, or collapse under continuous high-speed stamping and heating conditions.

1.2436 steel bar

Excellent Hardenability + Dimensional Stability: Zero error in precision dies. It can be hardened by air cooling or oil quenching. A 300mm cross-section is fully hardened, with uniform hardness inside and out (≤2 HRC deviation). Minimal heat treatment deformation (≤0.02mm/100mm), requiring no secondary finishing, directly applicable to precision stamping, gauges, and high-gloss molds.

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Good machinability and polishability: Adaptable to complex precision designs. Annealed hardness 230–255 HB, allowing for smooth turning, milling, and drilling; after polishing, a mirror finish (Ra≤0.02μm) can be achieved, meeting the requirements of precision parts and high-gloss molds.

1.2436 vs. Competitors: D6 (1.2436), D2, A2, O1 – How to Choose?

Steel Grade	Hardness(HRC)	Wear Resistance	Tempering Resistance	Toughness
1.2436(D6)	58–63	★★★★★	★★★★★	★★☆☆☆
D2(1.2379)	58–62	★★★★☆	★★★★☆	★★★☆☆
A2(1.2363)	57–60	★★★☆☆	★★★☆☆	★★★★☆
O1(Oil Quench)	58–61	★★★☆☆	★★☆☆☆	★★★★★

Our technical team(Sichuan Huitai Special Materials Co., Ltd) suggests: For those seeking ultimate wear resistance, high-temperature stability, and precise dimensions, choose 1.2436; for those needing to balance toughness and cost, choose D2; and for those seeking high toughness but low wear resistance, choose A2/O1.

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