PageLink Metal Products (Shanghai) alloy structural steel (domestic alloy structural steel / alloy structural steel) imports 40CrNiMoA alloy structural steel / steel plate 40CrNiMoA / 40CrNiMoA steel bars / 40CrNiMoA coil / 40CrNiMoA strip / 40CrNiMoA steel pipe / 40CrNiMoA wire (good Translated Metal Products (Shanghai) Co., Ltd.) 
 40CrNiMoA 
 An alloy structural steels referred to as structural steel, the 40CrNiMoA one of the structural steel, also known as alloy steel, it is appropriate to add one or more alloying elements on the basis of quality carbon structural steel (total content more than 5%) made of steel. 
 Implementation of standards GB/T3077-1999. 
 Uniform digital code A50403; 
 Eight grades 40CrNiMoA; 
 Chemical Composition%: 
 8 carbons C: 0.37 ~ 0.44 
 Silicon Si: 0.17 ~ 0.37 
 5 Mn Mn: 0.50 ~ 0.80 
 5 Sulfur S: Allow the residual content of ≤ 0.025 
 8 Phosphorus P: Allow the residual content of ≤ 0.025 
 9 chromium Cr: 0.60 ~ 0.90 
 6 Nickel Ni: 1.25 to 1.65 
 Cu: to allow the residual content of ≤ 0.025 
 Mo Mo: 0.15 to 0.25 
 ● Mechanical Properties: 
 Tensile strength σb (MPa): ≥ 980 (100) 
 Yield strength σs (MPa): ≥ 835 (85) 
 Elongation δ5 (%): ≥ 12 
 Section shrinkage ψ (%): ≥ 55 
 Impact energy Akv (J): ≥ 78 
 Impact toughness the value αkv (J/cm2): ≥ 98 (10) 
 Sample size: the sample blank size of 25mm 
 : Heat treatment (quenching 850 degrees; Coolant: Oil; tempering temperature of 600 degrees; coolant: water, oil); 
 State of the steel annealing or high temperature tempering supply Brinell hardness GBW is less than or equal to 269; 
 Delivery status: to heat treatment (normalizing, annealing, or high-temperature tempering) or heat treatment state of delivery, the delivery status should be indicated in the contract. 
 Purposes: as requiring high strength, high toughness, quenched and tempered parts section size of the larger and more important, such as the transmission of the horizontal forging machine eccentric shaft, forging machines 
 Crankshaft and so on. 
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