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

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GBT 20CrMn

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

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

Cross Reference Table(Equivalent Materials):

Material	Standard	Country
20CrMnVTiB4-10	AFNOR	France
20CrMnSi	GBT	China
20CrMnMo	GBT	China
20CrMnTi	GBT	China
20CrMnMoH	GBT	China
20CrMnTiH	GBT	China

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength	488～606	σb/MPa
Yield Strength	911	σ 0.2 ≥/MPa
Elongation	48	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	856～711	-
HRC	30	-

Physical Properties

Thermal expansion	82-56	e-6/K
Thermal conductivity	46-50	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	3670-4815	째C
Density	0018-7850	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)
20CrMn 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