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DH4 ÈÈ×÷¹¤¾ß¸Ö ¾«Ãܵç×Ó

DATASHEET FOR:STEEL GRADES:TOOL STEEL AND HARD ALLOY:DH4

Chemical composition(mass fraction)(wt.%) of the DH4









C(ï¼…)Si(ï¼…)Mn(ï¼…)P(ï¼…)S(ï¼…)Cr(ï¼…)V(%)W(%)
0.25-0.35Max 0.40Max 0.60Max 0.030Max 0.0202.00-3.000.30-0.55.00-6.00

Mechanical properties / Mechanische Eigenschaften / Caracteristiques mecaniques of grade SKD4

Yield
Rp0.2(MPa)
Tensile
Rm(MPa)
Impact
KV/Ku (J)
Elongation
A (%)
Reduction in cross section on fracture
Z (%)
As-Heat-Treated ConditionBrinell hardness (HBW)
469 (≥)849 (≥)231412Solution and Aging, Annealing, Ausaging, Q+T,etc411

CROSS REFERENCE TABLE(EQUIVALENT GRADE)

GradeStandardCountryApplication
DH4JISJapan

Hot-work die steel








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