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12X8 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 12X8

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GOST 12X8

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This page is mainly introduced the 12X8 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 12X8,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:12X8
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

Cross Reference Table(Equivalent Materials):

Material	Standard	Country
12X8BΦ	GOST	Russia

Chemical composition(mass fraction)(wt.%)

Elements	Min.（≥）	Max.（≤）
C		0.12
Si	0.17	0.37
Mn	0.30	0.60
P		0.035
S		0.030
Cr	7.50	9.50
Ni		0.40
Mo	0.60	0.90
W	1.70	2.20
V	0.15	0.30
Ti		0.05

Mechanical Properties

Tensile strength	715～600	σb/MPa
Yield Strength	365	σ 0.2 ≥/MPa
Elongation	80	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	994～386	-
HRC	30	-

Physical Properties

Thermal expansion	22-66	e-6/K
Thermal conductivity	25-09	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	9353-2444	째C
Density	5077-2904	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)
12X8 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