|C 2.00||Si 0.30||Mn 0.30||Cr 12.00|
Virat Special Steels is the largest Supplier & Stockiest of HCHCR-D3 Steel in India.
D3 Steel Having 12 % ledeburitic chromium tool steel with great wears resistance .
Basically utilized as cutting tools for sheets up to 4 mm thickness, trimming dies, blanking dies for paper and plastics, shear cutting edges and rotational shear edges for sheet thicknesses up to 2 mm.
D3 Steel having properties of High Carbon 2% and High chromium 12 % tool steel with high wear resistance. Its supply condition is normally annealed to easy machining which recommended hardness is 57-58 HRC after making the dies & tools.
|Coefficient of thermal expansionat °C||20-100||20-200||20-300||20-400||20-500||20-600||20-700|
|Thermal Conductivity at °C||20||350||700|
HCHCR D3 is used in cold Dies & tooling application that required the achievement of high degree of accuracy in hardening & tempering, such as dies drawing, forming cold rolls, powder metal tooling and blanking and trimming dies, blanking dies for paper and plastics, shear blades , cold die punches , Ejector pins etc.
|Soft annealing °C||Cooling||Hardness HB|
|810 - 850||Furnace||max. 250|
|Stress-relief annealing °C||Cooling|
|Hardening °C||Quenching||Hardness after quenching HRC|
|940 – 970||Oil||64.5|
|950-980||Air (up to 30 mm thickness)||64.5|
|Tempering °C after Quenching||100||200||300||400||500||600|