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

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GBT 40CrMnMo

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

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

Cross Reference Table(Equivalent Materials):

Material	Standard	Country
40CrMnMo7	DIN	Germany
40CrMnMoS8-6	DIN	Germany
40CrMnMo8	AFNOR	France
40CrMnMo8	AFNOR	France
40CrMnMo7	UNE	Spain

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength	789～700	σb/MPa
Yield Strength	829	σ 0.2 ≥/MPa
Elongation	47	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	811～228	-
HRC	30	-

Physical Properties

Thermal expansion	68-53	e-6/K
Thermal conductivity	97-36	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	7509-2421	째C
Density	3459-8353	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)
40CrMnMo 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