E⋅109
MPa
ϰ
Wm⋅K
ρ
kgm3
R⋅10−6
Ω⋅m
σU
MPa
σP
MPa
ϵL
ψ

08H18N12B (EI402, 0Х18Н12Б)

for various parts and structures to be welded by spot welding; details of the high viscosity in the apparatus, refrigerating machines, general and aeronautical engineering, operating at temperatures up to -253 deg .; austenitic steel

Classification

Country	Section	Category
Country	Section	Category
CIS, Russia, Ukraine	Corrosion-resistant alloys and steels	Corrosion-resistant ordinary steel

Chemical composition

Standard	Fe, %	Si, %	Mn, %	Cr, %	Ni, %	P, %	C, %	S, %
Standard	Fe, %	Si, %	Mn, %	Cr, %	Ni, %	P, %	C, %	S, %
GOST 5632-72	65.065–72	< 0.8	< 2	17–19	11–13	< 0.035	< 0.08	< 0.02

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Physical characteristics

Temperature, °C	$E\cdot 10^{9}$ , $MPa$	$\varkappa$ , $\frac{W}{m\cdot K}$	$\rho$ , $\frac{kg}{m^3}$	$R\cdot 10^{-6}$ , $\Omega\cdot m$
Temperature, °C	$E\cdot 10^{9}$ , $MPa$	$\varkappa$ , $\frac{W}{m\cdot K}$	$\rho$ , $\frac{kg}{m^3}$	$R\cdot 10^{-6}$ , $\Omega\cdot m$
20	202		7900	0.73
100		15.9

Mechanical properties at 20 °C

Rolling	Standard	Size, mm	Tension	Classifiers	$\sigma _{U}$ , $MPa$	$\sigma_{P}$ , $MPa$	$\epsilon_L$ , %	$\psi$ , %	Treatment
Rolling	Standard	Size, mm	Tension	Classifiers	$\sigma _{U}$ , $MPa$	$\sigma_{P}$ , $MPa$	$\epsilon_L$ , %	$\psi$ , %	Treatment
Pipes are coldly deformed.	GOST 9941-81				529		37
Pipes are hot deformed.	GOST 9940-81				510		38
Rod	GOST 5949-75	< 60			490	175	40	55	Hardening of 1050-1100 ° C, air
The plates	GOST 7350-77				510	205	40		Hardening of 1000-1100 ° C, air cooling
Sheet	GOST 5582-75				530		40		Hardening of 1050-1080 ° C, air

Analogues

USA	Germany
USA	Germany
S34700	1.4550 (X6CrNiNb18-10)

Standards

Standard	Description
Standard	Description
GOST 5632-72
GOST 5949-75
GOST 7350-77
GOST 5582-75
GOST 9940-81
GOST 9941-81

Description of chemical elements

Element	Units of measurement	Description
Element	Units of measurement	Description
Fe	%	Iron
Si	%	Silicon
Mn	%	Manganese
Cr	%	Chrome
Ni	%	Nickel
P	%	Phosphorus
C	%	Carbon
S	%	Sulfur

Description of physical characteristics

Parameter	Units of measurement	Description
Parameter	Units of measurement	Description
$E\cdot 10^{9}$	$MPa$	Elastic modulus
$\varkappa$	$\frac{W}{m\cdot K}$	Coefficient of thermal conductivity (the heat capacity of the material)
$\rho$	$\frac{kg}{m^3}$	The density of the material
$R\cdot 10^{-6}$	$\Omega\cdot m$	Electrical resistivity

Description of mechanical properties

Parameter	Units of measurement	Description
Parameter	Units of measurement	Description
$\sigma _{U}$	$MPa$	Ultimate tensile strength
$\sigma_{P}$	$MPa$	Proportionality limit
$\epsilon_L$	%	Elongation at break (longitudinal)
$\psi$	%	Reduction in cross section on fracture