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X21CrMoNiV12-2 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of X21CrMoNiV12-2

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ISO X21CrMoNiV12-2

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This page is mainly introduced the X21CrMoNiV12-2 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of X21CrMoNiV12-2,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Wrought steels for use at elevated temperatures in engines

Steel Garde:X21CrMoNiV12-2
Type:Stainless Steels
Country:International
Standard:ISO
Standard Number:

ITEM Standard Number Descriptions

1 ISO/TR 4956 Wrought steels for use at elevated temperatures in engines
Metallographic Structure:Bainite
Application:Wrought steels for use at elevated temperatures in engines

ITEM	Standard Number	Descriptions
1	ISO/TR 4956	Wrought steels for use at elevated temperatures in engines

Chemical composition(mass fraction)(wt.%)

Elements	Min.（≥）	Max.（≤）
C	0.17	0.25
Si		0.50
Mn		1.00
P		0.035
S		0.030
Cr	11.00	12.50
Mo	0.70	1.20
Ni	0.30	1.00
V	0.20	0.35

Mechanical Properties

Tensile strength	932～716	σb/MPa
Yield Strength	571	σ 0.2 ≥/MPa
Elongation	37	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	754～620	-
HRC	30	-

Physical Properties

Thermal expansion	33-58	e-6/K
Thermal conductivity	51-24	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	7840-7709	째C
Density	4648-8399	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)
X21CrMoNiV12-2 Stainless Steels	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