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45Mn chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 45Mn

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GBT 45Mn

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This page is mainly introduced the 45Mn chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 45Mn,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
45Mn

Steel Garde:45Mn
Type:Special Alloy
Country:China
Standard:GBT
Application:China structural steel and alloy steel

Cross Reference Table(Equivalent Materials):

Material	Standard	Country
YF45MnV	GBT	China
45Mn2	GBT	China
45MnB	GBT	China
45MnBH	GBT	China

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength	388～162	σb/MPa
Yield Strength	908	σ 0.2 ≥/MPa
Elongation	67	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	825～777	-
HRC	30	-

Physical Properties

Thermal expansion	30-25	e-6/K
Thermal conductivity	22-40	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	7273-5979	째C
Density	1914-8404	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)
45Mn 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