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21MoMnCr12AT chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 21MoMnCr12AT

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STAS/SR 21MoMnCr12AT

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This page is mainly introduced the 21MoMnCr12AT chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 21MoMnCr12AT,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
21MoMnCr12AT

Steel Garde:21MoMnCr12AT
Type:Special Alloy
Country:Romania
Standard:STAS/SR
Application:Alloy structural steel

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength	832～322	σb/MPa
Yield Strength	732	σ 0.2 ≥/MPa
Elongation	30	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	972～291	-
HRC	30	-

Physical Properties

Thermal expansion	72-48	e-6/K
Thermal conductivity	87-19	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	4698-5256	째C
Density	4046-0821	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)
21MoMnCr12AT 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