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21MoMnCr12X chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 21MoMnCr12X

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STAS/SR 21MoMnCr12X

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This page is mainly introduced the 21MoMnCr12X chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 21MoMnCr12X,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
21MoMnCr12X

Steel Garde:21MoMnCr12X
Type:Special Alloy
Country:Romania
Standard:STAS/SR
Application:Alloy structural steel

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength	619～312	σb/MPa
Yield Strength	108	σ 0.2 ≥/MPa
Elongation	45	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	807～405	-
HRC	30	-

Physical Properties

Thermal expansion	20-20	e-6/K
Thermal conductivity	57-96	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	0165-2940	째C
Density	8205-6478	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)
21MoMnCr12X 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