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12X18H9T chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 12X18H9T

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GOST 12X18H9T

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This page is mainly introduced the 12X18H9T chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 12X18H9T,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:12X18H9T
Type:Stainless Steels
Country:Russia
Standard:GOST
Metallographic Structure:Austenite
Application:Russia GOCT standard stainless steel and heat resistant steel steel grade and chemical composition

Chemical composition(mass fraction)(wt.%)

Elements	Min.（≥）	Max.（≤）
C		0.12
Si		0.80
Mn		2.00
P		0.035
S		0.020
Cr	17.00	19.00
Ni	8.00	9.50
Mo		0.30
W		0.20
Ti	5×C	0.80

Mechanical Properties

Tensile strength	279～056	σb/MPa
Yield Strength	958	σ 0.2 ≥/MPa
Elongation	64	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	127～257	-
HRC	30	-

Physical Properties

Thermal expansion	70-57	e-6/K
Thermal conductivity	57-73	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	6355-8565	째C
Density	5928-9351	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)
12X18H9T 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