Hot-work mold steel blocks arranged in the workshop

Hot Work Tool Steel

Suitable for high-temperature applications such as die casting, hot extrusion and hot forging.

Product Overview

Hot work tool steel is designed for high-temperature die applications such as hot extrusion, die casting and hot forging. It offers good hot strength, resistance to thermal fatigue and toughness, ensuring stable performance under repeated heating and cooling cycles.

Typical Use Cases

  • Die-Casting Dies
  • Hot Extrusion Dies
  • Hot Forging Dies
  • Aluminium Alloy Dies
Machined modules for hot work tool steel
On-site photo of HavingTech products

Steel Grade Comparison

Common equivalent grades reference for material selection communication across different standards.

Hot Work Tool Steel — Steel Grade Cross-Reference Table
ENAISIDINJISGBAPPLICATION
X40CrMoV5-1H131.2344SKD614Cr5MoSiV1For aluminum die-casting dies, extrusion dies and thin-wall plastic moulds
X38CrMoV5-1H111.2343SKD64Cr5MoSiVFor aluminum die-casting dies, extrusion dies and thin-wall plastic moulds
X38CrMoV5-3H13 Mod1.2367-4Cr5Mo2SiVFor aluminum, magnesium and titanium extrusion dies and die-casting dies
32CrMoV12-28H10 Mod1.2365SKD73Cr3Mo3VFor copper extrusion dies with good thermal stability
-H121.2602SKD623Cr5WMoSiVFor mechanical forging dies and ejector pins, etc.
-H12 Mod--5Cr5WMoSiVFor cold rolling rolls, intermediate rolls, backup rolls and hot shear blades, etc.
-H21 Mod--4Cr3W2Mo2VFor forging dies with good wear resistance
56NiCrMoV7L61.2714SKT45CrNiMoVFor medium-to-large forging dies
X30WCrV9-3H211.2581SKD53Cr2W8VFor hot work tools and forging dies requiring high heat resistance and resistance to thermal cycling
55NiCrMoV6-1.2713SKT45CrNiMoFor medium-to-large forging dies

Grade equivalencies are for general reference only; actual supply standards apply. A "-" in the table indicates no corresponding grade is currently available.