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

Chemical composition

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

Information on suppliers

Physical characteristics

Temperature, °C $$E\cdot 10^{9}$$, $$MPa$$ $$\varkappa$$, $$\frac{W}{m\cdot K}$$ $$\rho$$, $$\frac{kg}{m^3}$$ $$R\cdot 10^{-6}$$, $$\Omega\cdot m$$
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
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
S34700 1.4550 (X6CrNiNb18-10)

Standards

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
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
$$E\cdot 10^{9}$$ $$MPa$$ 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
$$\sigma _{U}$$ $$MPa$$ Ultimate tensile strength
$$\sigma_{P}$$ $$MPa$$ Proportionality limit
$$\epsilon_L$$ % Elongation at break (longitudinal)
$$\psi$$ % Reduction in cross section on fracture