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12X21H5T chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 12X21H5T

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GOST 12X21H5T

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This page is mainly introduced the 12X21H5T chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 12X21H5T,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Russia GOCT standard stainless steel and heat resistant steel steel grade and chemical composition

Steel Garde:12X21H5T
Type:Stainless Steels
Country:Russia
Standard:GOST
Metallographic Structure:Austenitic-Ferritic(Duplex steel)
Application:Russia GOCT standard stainless steel and heat resistant steel steel grade and chemical composition

Chemical composition(mass fraction)(wt.%)

Elements	Min.（≥）	Max.（≤）
C	0.09	0.14
Si		0.80
Mn		0.80
P		0.035
S		0.025
Cr	20.00	22.00
Ni	4.80	5.80
Mo		0.30
W		0.20
Ti	0.25	0.50
Al		0.08

Mechanical Properties

Tensile strength	777～799	σb/MPa
Yield Strength	958	σ 0.2 ≥/MPa
Elongation	78	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	269～807	-
HRC	30	-

Physical Properties

Thermal expansion	32-65	e-6/K
Thermal conductivity	22-37	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	1072-7671	째C
Density	6317-8375	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)
12X21H5T 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