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36CrNiMo4 1.6511

Products Details

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36CrNiMo4 is an alloy structural steel used for gears, shafts, piston parts, etc., and various special wear-resistant parts for automobiles and aircrafts.

Chemical Composition %

S	P	Cr	Ni	Cu	Mo
max 0.035	max 0.035	0.90 - 1.20	0.90 - 1.20	max 0.025	0.15 - 0.30

Mechanical properties

Tensile strength σb (MPa)	≥980(100)
Yield strength σs (MPa)	≥835 (85)
Elongation δ5 (%)	≥12
Section shrinkage rate ψ (%)	≥55
Impact work Akv (J)	≥78
Impact toughness value αkv (J / cm2)	≥98(10)
Hardness(HB)	≤269

36CrNiMo4 reference corresponding steel number:

China GB steel number: 40CrNiMoA

Russia ГOCT 40XHMA

German DIN steel number 36CrNiMo4, German DIN material number 1.6511

French NF standard 40NCD3

Japanese JIS standard SNCM439

British BS standard 816M40

American AISI / ASTM 4340, American UNS standard G43400

Heat treatment specifications and metallographic structure

Heat treatment specifications: quenching at 850 ° C, oil cooling; tempering at 600 ° C, water cooling, oil cooling.

Metallographic structure: Martensite

Delivery status

Delivery in heat treated ( normalized , annealed or high temperature tempered ) or non-heat treated status. The delivery status should be specified in the contract.