Alloy Structural Steel-40CrNiMoA
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Alloy Structural Steel
Grade：
40CrNiMoA、4340、SNCM439、40NCD3Standards and Technical Conditions：
GJB 1951、GJB 1951A、 GJB 1220A、GJB 5040、 GB/T 3077
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Product Characteristics
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40CrNiMoA is a steel grade produced by appropriately adding one or several alloy elements (with total content not exceeding 5%) on the basis of high-quality carbon structural steel, among which Mo can refine grains and increase temper-resistance.
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Industrial Application
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It is mainly used for steam turbine gears, gear rings, integral-forged rotors; internal combustion engine connecting rods and valves; high-strength and high-toughness forgings with relatively large section size, such as: wind power generator forgings, forging-press crankshafts, etc.; special wear-resistant parts on automobiles and aircraft.
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Company Product Applications
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It is mainly used for gas turbine and aircraft parts.
Common Delivery Condition
Standard Heat Treatment Procedure?
Main Specifications
Delivery Condition
Bars are annealed, and supplied after turning
Chemical Composition
Mechanical Properties
