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CrW5 Steel

Posted on 2015-01-09
(1) low characteristic mold steel hardenability carbon tungsten chromium cold work die steel, high wear Levin's body martensitic steel in the water cooling, high hardness, toughness, although lower, but wear resistance and bite excellent ability to obtain the title of "Diamond steel".
The hardened steel hardness up to 67 ~ 68HRC, but low thermal stability, hardenability limited, slightly better than carbon tool steel, cold, poor thermal processing performance. The steel tempering resistance low, grinding, grinding burn should pay special attention to prevention.
(2) Typical chemical composition (mass fraction most,%) C 1.25 ~ 1.50, Mn≤0.30, Si≤0.30, Cr O.40 ~ 0.70, W 4.50 ~ 5.50.
(3) the phase transition point temperature (approx.) A = 1160 ℃. A = 760 ℃, A = 725 ℃.
(4) Specification for forging stock softening temperature of 680 ~ 700 ℃, holding time of 2 ~ 3h, cooled to ≤600 ℃, cooled baked, post-processing hardness ≤285HBS.
(5) General specifications tempering temperature 720 ~ 740 ℃, time 2 ~ 3h, cooled to ≤600 ℃. Baked cooled, treated hardness ≤269HBS.
(6) the ball annealing specification (800 ~ 820) ℃ × (2 ~ 4) h, to 30 ℃ / h cooling rate of the furnace cooling, (680 ~ 700) ℃ × (4 ~ 6) h, furnace cooling to temperature of 500 ~ 600 ℃, cooled baked, hardness 229 ~ 285HBS.
Previous : Cr2 Steel
We can supply:
1.Big Size
2.Delivery within 15days
3.Payment Terms: L/C,T/T
4.Port: Shanghai,or is any port in China
5.Trade Term;FOB CIF CFR DDU
6.MOQ:500KG-1000KG
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