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X21Cr13 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of X21Cr13

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ISO X21Cr13

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This page is mainly introduced the X21Cr13 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of X21Cr13,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:X21Cr13
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	0.09	0.15
Si		1.00
Mn		1.00
P		0.040
S		0.030
Cr	11.50	14.00
Mo
Ni		1.00

Mechanical Properties

Tensile strength	489～141	σb/MPa
Yield Strength	284	σ 0.2 ≥/MPa
Elongation	77	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	334～871	-
HRC	30	-

Physical Properties

Thermal expansion	49-59	e-6/K
Thermal conductivity	73-74	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	9803-1588	째C
Density	4283-2115	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)
X21Cr13 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