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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	710～485	σb/MPa
Yield Strength	514	σ 0.2 ≥/MPa
Elongation	60	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	182～068	-
HRC	30	-

Physical Properties

Thermal expansion	96-99	e-6/K
Thermal conductivity	16-40	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	9133-9573	째C
Density	5345-2127	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