W6Mo5Cr4V2 chemical composition

Chemical composition

Grade: W6Mo5Cr4V2; (chemical composition% :)
Carbon C: 0.80 ~ 0.90 (allowable deviation: ± 0.01)
Silicon Si: 0.20 to 0.45 (allowable deviation: ± 0.05)
Manganese Mn: 0.15 ~ 0.40 (allowable deviation: 0.04)
    Sulfur S: ≤ 0.030
Phosphorus P: ≤ 0.030
Chromium Cr: 3.80 ~ 4.40 (allowable deviation: ± 0.05)
Ni: to allow the residual content of ≤ 0.30
Cu: to allow the residual content of ≤ 0.25
Vanadium V: 1.75 ~ 2.20 (allowable deviation: ± 0.05)
Mo Mo: 4.50 to 5.50 (allowable deviation: size ≤ 6 ± 0.05; dimensions> 6, ± 0.10)
Tungsten W: 5.50 to 6.75 (allowable deviation: Size ≤ 10 ± 0.10; dimensions> 10 ± 0.20)
Note: According to the agreement between the V content can be 1.60 to 2.20
Mechanical Properties
Delivery status steel hardness and sample solution tempering hardness: the hardness of delivery HBW less than or equal to (other processing methods: 262, annealing

: 255); preheat temperature: 730 to 840 photo
Heat treatment process
's Degrees; quenching temperature: (salt bath furnace 1210 to 1230, the box-type furnace 1210 to 1230); of quenching: oil; tempering temperature

540 to 560 degrees Celsius; HRC (box-type furnace 63, salt bath furnace 64). Heat treatment pictures Delivery status: hot-rolled, forged, cold-drawn steel

Stick to the annealed condition Delivery, hot-rolled, forged steel bars to annealing + other processing methods (peeling, light pull, polished or polished, etc.) plus

The workers after delivery. dianhua021-56-10-31-35