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40CrNiMoA chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 40CrNiMoA

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GBT 40CrNiMoA

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This page is mainly introduced the 40CrNiMoA chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 40CrNiMoA,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
40CrNiMoA

Steel Garde:40CrNiMoA
Type:Special Alloy
Country:China
Standard:GBT
Application:China structural steel and alloy steel

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength	680～740	σb/MPa
Yield Strength	819	σ 0.2 ≥/MPa
Elongation	57	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	550～263	-
HRC	30	-

Physical Properties

Thermal expansion	30-29	e-6/K
Thermal conductivity	25-58	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	2936-8824	째C
Density	8665-0641	kg/m³
Resistivity	0.50-0.60	Ohm.mm²/m

Heat Treatment Regime

Annealing	Quenching	Tempering	Normalizing	Q & T
√	√	√	√	√

Size Availability

Steel Grade	Specification	Processing range(mm)
40CrNiMoA Special Alloy	Round Bar and Hollow Bar	Φ1 to Φ2000
	Square and Flat Steel	Φ10 to Φ100
	Plate and Sheet	0.08-800(Thickness)10-1500(Width)Length
	Tube or Pipe	OD:Φ4-410; WT:1-35 mm; Lenght:10-12000
	Coil and Strip Steel	THK:0.1mm Width:1500mm
	Forged	Ring/Cylindrical/Disk