DuMAC Series Cold Work Tool Steel
(In stock)
| Product Name | DuMAC Series Cold Work Tool Steel |
| Model Number | DuMAC MAX/ DuMAC PRO/ DuMAC 11/DuMAC WF/DuMAC RD/DuMAC DK |
| Brand | SeAH Changwon Integrated Special Steel (SeAH CSS) |
| Category | Cold Work Tool / Die Steel — DuMAC Series |
| Country Origin | South Korea |
| Material | High-carbon, high-chromium tool steels with alloy design tuned for wear resistance, impact toughness, hardenability. Some variants produced using ESR (Electro-Slag Remelting) for cleaner microstructure and better fatigue & toughness (e.g. DuMAC MAX) .Clean internal quality, optimized carbide distribution for uniform wear and hardness. |
| Applications | Press dies, trimming dies for high-strength & advanced high-strength steels (AHSS) /Industrial knives, slitter knives, blanking / punching dies & roll dies /Forming / thread‐rolling dies, drawing molds. |
The DuMAC Series is SeAH CSS’s premium line of cold work tool steels, engineered for harsh environments and rigorous forming operations. Manufactured using advanced alloy design and process control, including ESR methods (in some grades like DuMAC MAX), the series offers excellent wear resistance, high hardness (HRC ≥ 58+), and superior impact toughness. Clean internal structure and precise carbide distribution enable longer tool life and greater reliability. Variants like DuMAC PRO and DuMAC 11 balance wear toughness and machinability; specialized grades like DuMAC WF, RD, DK serve applications like thread rolling dies, industrial knives, trimming dies, roll dies. Ideal for industries handling high-strength steels, trimming, punching, or forming operations with high demands on tool lifespan and performance.
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