6W6Mo5Cr4V
Material Name: Alloy tool steel
Grade: 6W6Mo5Cr4V
Standard: GB / T 1299-1985
● Features and application:
Types of low-carbon high-speed steel cold die steel, high-speed steel toughness than good. As the cold extrusion of steel, have a higher life. This steel is easy to decarburization
, Mainly used for cold extrusion die, the upper and lower red top mold.
● Chemical Composition:
Carbon C: 0.55 ~ 0.65
Si Si: ≤ 0.40
Manganese Mn: ≤ 0.60
Sulfur S: ≤ 0.030
Phosphorus P: ≤ 0.030
Chromium Cr: 3.70 ~ 4.30
Ni: to allow the residual content of ≤ 0.25
Copper Cu: to allow the residual content of ≤ 0.30
Vanadium V: 0.70 ~ 1.10
Mo Mo: 4.50 ~ 5.50
Tungsten W: 6.00 ~ 7.00
● Mechanical Properties:
Hardness: Annealed, ≤ 269HB, indentation diameter ≥ 3.7mm; quenching, ≥ 60HRC
● Heat treatment and microstructure specifications:
Standard heat treatment: quenching, 1180 ~ 1200 ℃ oil cooling.
● Delivery status: the status of delivery of steel to annealing.
Thermal processing 6W6Mo5Cr4V steel thermal processing are shown in Table 2-8-3.
Table 2-8-3 6W6Mo5Cr4V the thermal processing of steel