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20MnCr12S chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 20MnCr12S

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STAS/SR 20MnCr12S

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This page is mainly introduced the 20MnCr12S chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 20MnCr12S,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
20MnCr12S

Steel Garde:20MnCr12S
Type:Special Alloy
Country:Romania
Standard:STAS/SR
Application:Alloy structural steel

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength	947～133	σb/MPa
Yield Strength	929	σ 0.2 ≥/MPa
Elongation	75	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	765～797	-
HRC	30	-

Physical Properties

Thermal expansion	28-92	e-6/K
Thermal conductivity	01-12	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	3680-7072	째C
Density	3830-0797	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)
20MnCr12S 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