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Forged Mold Block Heavy Steel Forgings 1.2738 1.2311 1.2312 SP300 SP350
Forged block introduction
Well known material on market like1.2738,1.2311,1.2312,SP300,SP350 actually are forged block
Production technology:EBT( Eccentric Bottom Tapping Electric Arc Furnace)-LF-VD-argon protection pouring-annealing-ingot finishing adjustment-ingot heating-3150tons hydro press forging-heat treatment-four section rough milling-ut-two ends sawing-delivery
Inside structure tight and even
Adopts some smaller blank material as composition,due to quick solidification,it is more even than traditional casting ingot,there is no segregation,less loosen inside of blank,
After deformation,heating preservation,forging of welding surface,compactness is higher than forgings made by casting blank.
more pure material
Adopts some smaller blank material as composition,which is low cost,simple process,it can adopt many kinds of optional LF ways to achieve purity,it is more pure than forgings made by casting blank .
Custom properties
Material elements | C | Si | Mn | P | S | Cr | Ni | Mo |
| 1.2738 | 0.35-0.46 | 0.2-0.4 | 1.3-1.6 | ≤0.035 | ≤0.005 | 1.8-2.2 | 0.9-1.2 | 0.15-0.25 |
| 1.2311 | 0.37~0.42 | ≤0.40 | 1.40~1.60 | ≤0.035 | ≤0.040 | 1.80~2.10 | ≤0.40 | 0.15~0.25 |
| SP300 | ≤0.25 | / | ≤1.30 | ≤0.02 | ≤0.02 | ≤1.30 | / | ≤0.40 |
