W6Mo5Cr4V2 high-speed tool steel is a high-carbon and high-alloy tool steel suitable for high-speed cutting.


W6Mo5Cr4V2 Worldwide Equivalents

W6Mo5Cr4V2 Chemical Composition

0.80~0.900.20~0.450.15~0.400.030 Max0.030 Max3.80~4.404.50~5.501.75~2.205.50~6.75

Mechanical Properties

Hardness, Rockwell C (tempered at 621°C, quenched at 1204°C): 62 HRC.

Hardness, Rockwell C (quenched at 1204°C) ): 65 HRC

Forged of W6Mo5Cr4V2 Steel Material

At first, Pre-Heating to 650-750℃,Then heat to forged temperature. Soak at 1204°C, ensure heat thorough. Then start forged, the forged temperature no low than 950℃. After forging, cool slowly.

Heat Treatment of W6Mo5Cr4V2 Steel


At first, Slowly heat to 871℃,then slowly Cool to 538℃(1000℉) in heat treatment furnace. Then cool in air. After annealing hardness HBS: 255 Max.


W6Mo5Cr4V2 steel having very high hardenability and should be hardened by cooling in still air. The use of a salt bath or controlled atmosphere furnace is desirable to minimize decarburization, and if not available, pack hardening in spent pitch coke is suggested.


Quenching temperature / ℃ | salt bath furnace: 1204

Quenching temperature / ℃ | controlled atmosphere furnace: 1216

The heat preservation time/min: 5 ~ 15

Quenching medium: Oil cooling

Hardness: 65 HRc Min


Tempering temperature / ℃ : 540-564

After tempering hardness HRC or higher: 65 Min

Features and Application

W6Mo5Cr4V2 steel is molybdenum-based high-speed steel. Carbide inhomogeneity is small and toughness is high. Easy to overheat. Quenching heating temperature should be strictly controlled. Stricter protection for heat treatment. Due to its hardness and wear resistance, it is used to manufacture cutting tool materials that are difficult to cut.

W6Mo5Cr4V2 steel High-speed steel with larger carbide orientation. Therefore, the protection of heat treatment is more stringent. It is suitable for vibration and shock loads of the mold.

Used as cold forging mold, precision mold, mold powder, etc., cutting tool, glass fiber plastic mold.

Available Size

Round BarDiameter(mm): 6-800mm ,Length: 1000-9000mm or custom size
Plate/Flat/BlockThickness: 6mm-500mm , Width: 20mm-1000mm or custom size
Tolerance±1%,Thickness: +/-0.02mm, Width:+/-2mm