A681 D3 Mold Steel

A681 D3 mold steel is a kind of tool steel alloy. A681 D3 material is a D type cold work tool steel, characterized by high carbon and high chromium contents and exhibit high resistance to abrasion. ASTM A681 D type cold work mold steel containing molybdenum may be hardened in air and offer a high degree of dimensional stability in heat treatment.

A681 D3 Mold Steel Chemical Requirements(%)

C	Mn	P	S	Si	Cr	V	W
2.00～2.35	0.10～0.60	≤0.030	≤0.030	0.10～0.60	11.00～13.50	≤1.00	≤1.00

A681 D3 Mold Steel Hardness

Maximum Brinell Hardness in Annealed or Cold-Drawn Condition

Type	Annealed BHN	Cold drawn BHN
D3	255	269

A681 D3 Steel Products Appearance

A681 D3 alloy tool steels are free of heavy scale, deep pitting, laps, porosity, injurious segregation, excessive non-metallic inclusions,seams, cracks, checks, slivers, scale marks, dents, soft and hard spots, pipes, or any defects that would detrimentally affect the suitability of the material after removal of the recommended stock allowance.