W9Mo3Cr4V steel is a general-purpose tungsten molybdenum high-speed steel. It mainly contains medium content of tungsten, adds a small amount of molybdenum, and uses the method of appropriately controlling the content of carbon and vanadium to improve properties, improve quality and save alloy elements.

Chemical composition (%) of W9Mo3Cr4V steel material:

Mechanical properties of W9Mo3Cr4V:

Proof strengthRp0.2(MPa)Tensile strengthRm(MPa)Impact energyKV(J)Elongation at fractureA(%)Reduction in cross section on fractureZ(%)As-Heat-Treated ConditionBrinell hardness(HBW)
444(≥)944(≥)233433Solution and Aging,Annealing,Ausaging,Q+T,etc144

Physical properties of W9Mo3Cr4V

critical pointAc1Ac3
Temperature (approximate) / ℃835875

Elastic modulus of W9Mo3Cr4V:

Elastic modulus E/MPa221900209000191600185000178600

Linear expansion coefficient of W9Mo3Cr4V:

Linear expansion coefficient/℃-112.0×10-612.6×10-613.2×10-6

Thermal conductivity of W9Mo3Cr4V:

Thermal conductivity /W·(m·K)30.932.631.4

Heat treatment:

Quenching, preheating at 820~870℃, heating at 1210~1230℃ (salt bath furnace) or 1220~1240℃ (box furnace), oil cooling, tempering twice at 540~560℃, 2h each time.

W9Mo3Cr4V Steel Application

1) :可用于建筑、汽车、造船、石化、机械、医药、食品、电力、能源、航天、建筑装饰等领域。

2) :可制成模具模板、插销、立柱

3) :这种钢具有良好的机械性能,广泛应用于可能承受应力变化的结构件,特别是用于制造一些连杆、螺栓、齿轮等。。。

4) :这种钢是轴零件最常见的毛坯和材料。其模具焊接材料型号为CMC-E45。

1): Can be used in many fields such as building, automobile, shipbuilding, petrochemical, machinery, medicine, food, electric power, energy, space, building and decoration, etc.

2): Can be made into mould template, mortise pin, column

3): This kind of steel have good mechanical property, is widely used in structural parts which may support stress alternation, especially made into some connecting rods, bolts, wheel gear…

4): This kind of steel is the most common blanks and materials of shaft parts. Its die welding material model is CMC-E45.

W9Mo3Cr4V products:

Product typeProductsDimensionProcessesDeliver Status
Plates/SheetsPlates/Sheets0.08-200mm(T)*W*LForging,hot rolling and cold rollingAnnealed,Solution and Aging,Q+T,ACID-WASHED,Shot Blasting
Steel BarRound Bar,Flat Bar,Square BarΦ8-1200mm*LForging,hot rolling and cold rolling,CastBlack,Rough Turning,Shot Blasting,
Coil/StripSteel Coil/Steel Strip0.03-16.0x1200mmCold-Rolled&Hot-RolledAnnealed,Solution and Aging,Q+T,ACID-WASHED,Shot Blasting
Pipes/TubesSeamless Pipes/Tubes,Welded Pipes/TubesOD:6-219mm x WT:0.5-20.0mmHot extrusion,Cold Drawn,WeldedAnnealed,Solution and Aging,Q+T,ACID-WASHED