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

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

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

Relevant products:

X40MnCr18 / 1.38...

X40MnCrN19/X40MnCr...

Cross Reference Table(Equivalent Materials):

Material	Standard	Country
40Mn10	STAS/SR	Romania
YF40MnV	GBT	China
F40MnV	GBT	China
40Mn2	GBT	China
40MnB	GBT	China
40MnVB	GBT	China
40MnBH	GBT	China
Y40Mn	GBT	China

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength	528～727	σb/MPa
Yield Strength	831	σ 0.2 ≥/MPa
Elongation	65	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	157～091	-
HRC	30	-

Physical Properties

Thermal expansion	18-06	e-6/K
Thermal conductivity	27-71	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	3853-4104	째C
Density	4090-2763	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)
40Mn 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