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40Mn2 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 40Mn2

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This page is mainly introduced the 40Mn2 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 40Mn2,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
40Mn2

Steel Garde:40Mn2
Type:Special Alloy
Country:China
Standard:GBT
Application:China structural steel and alloy steel

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength	389～409	σb/MPa
Yield Strength	298	σ 0.2 ≥/MPa
Elongation	84	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	011～628	-
HRC	30	-

Physical Properties

Thermal expansion	38-01	e-6/K
Thermal conductivity	06-24	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	2662-3275	째C
Density	9888-7602	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)
40Mn2 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