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HOME --> DIE CAST & FORGING STEELS --> DH31-EX --> CHARACTERISTICS

Die Cast & Forging Steels

DH31-EX

Characteristics:

  • Tempering hardness
    • Quenching temp: 1030C
       
    • T.P. size: 10H x 10W x 15L
       
  • Toughness
    • Quenching temp: 1030C x 30min. --> 150 Dia. Bar, AC
       
    • T.P. size: L
        
  • Softening resistance
    • Holding temp.: 600C
    • Quenching temp: 1030C x 30min. --> 150 Dia. Bar, AC
    • T.P. size: 10H x 10W x 15L
        
  • Elevated temperature tensile properties
    • T.P. size: 8 x 40L
  • Heat check resistance

        

Heat check resistance is further improved by increasing hardness without deteriorating toughness. 

An example to improve heat check resistance (200mmm thickness air cool quenched die)

        

<Test procedures>

  • Specimen: 15mm
     
  • I/Heating: 20<-> 700C
     
  • Number of cycles: 1000 times
  • Erosion resistance
  • Creep properties


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DH31-EX

Overview

Chemical Composition

Concept of Development

Hardenability

Characteristics

Surface Hardening Properties

Machinability

Repair Welding Conditions

Physical Properties

Testimonials

 

 
 
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