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12X8BΦ chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 12X8BΦ

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GOST 12X8BΦ

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This page is mainly introduced the 12X8BΦ chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 12X8BΦ,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:12X8BΦ
Type:Stainless Steels
Country:Russia
Standard:GOST
Metallographic Structure:Martensite
Application:Russia GOCT standard stainless steel and heat resistant steel steel grade and chemical composition

Chemical composition(mass fraction)(wt.%)

Elements	Min.（≥）	Max.（≤）
C	0.08	0.15
Si		0.60
Mn		0.50
P		0.030
S		0.025
Cr	7.00	8.50
Ni		0.60
Mo		0.20
W	0.60	1.00
Ti		0.03
V	0.30	0.50

Mechanical Properties

Tensile strength	302～043	σb/MPa
Yield Strength	413	σ 0.2 ≥/MPa
Elongation	20	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	050～893	-
HRC	30	-

Physical Properties

Thermal expansion	13-47	e-6/K
Thermal conductivity	34-93	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	2780-0677	째C
Density	3127-8228	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)
12X8BΦ 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