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Standard: AISI,ASTM,DIN,JIS
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Specifications

D3 Cold Work Tool Steel is an oil hardening, high carbon/chromium type tool steel.
n Good wear resistance
n Compressive strength 
n Resistance to plastic deformation 
n Good hardenability
APPLICATIONS: Cutting tools, stamping, woodworking, drawing, deep drawing and pressing tools, cold working rolls, measuring tools.

Heat Treatment:
Forge: at 1050℃-850℃ Cool slowly in furnace or thermoinsulating material 
Annealing: at 800℃-850℃ Cool slowly in furnace
Stress Relieving: approx.650℃ Cool slowly in furnace
Hardening after annealing: max. 248 HB