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20MnMoB chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 20MnMoB

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GBT 20MnMoB

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This page is mainly introduced the 20MnMoB chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 20MnMoB,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
20MnMoB

Steel Garde:20MnMoB
Type:Special Alloy
Country:China
Standard:GBT
Application:China structural steel and alloy steel

Cross Reference Table(Equivalent Materials):

Material	Standard	Country
20MnMoBH	GBT	China

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength	382～684	σb/MPa
Yield Strength	388	σ 0.2 ≥/MPa
Elongation	40	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	156～280	-
HRC	30	-

Physical Properties

Thermal expansion	05-56	e-6/K
Thermal conductivity	52-42	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	9681-6738	째C
Density	9339-4144	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)
20MnMoB 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