08X18H10T (EI914, 0X18H10T)

Electrodes spark spark plugs, filler wire. Apparatuses and devices in food production (weldability without restrictions, good polishability and excellent ability to deep drawing, resistance to wear), consumer goods, automotive

Welded equipment operating in environments of increased aggressiveness, heat exchangers, muffles, pipes, fittings furnace parts, spark electrodes spark incendiary; austenitic steel

Classification

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

Chemical composition

Standard Fe, % Si, % Mn, % Cr, % Cu, % Ni, % P, % C, % S, %
GOST 5632-72 66.765–74 < 0.8 < 2 17–19 < 0.3 9–11 < 0.035 < 0.08 < 0.02

Information on suppliers

Physical characteristics

Temperature, °C $$E\cdot 10^{9}$$, $$MPa$$ $$\alpha\cdot 10^{6}$$, $$K^{-1}$$ $$\varkappa$$, $$\frac{W}{m\cdot K}$$ $$\rho$$, $$\frac{kg}{m^3}$$
20 196 7900
100 16.1 16
200 18
300 17.4 19
500 18.2

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 9941-81 549 37
Trumpet GOST 10498 - 82 529 40
Trumpet GOST 11068 - 81 530 216 37
Pipes are hot deformed. GOST 9940-81 hot rolling 510 40
Rod GOST 5949-75 60 490 196 40 55 Hardening of 1020-1100 ° C, air cooling
The bar is hardened. GOST 18907-73 880–930
The wire is annealed. 8 1400–1600 20
Forgings GOST 25054-81 490 196 35–38 40–52
The plates GOST 7350-77 510 205 43 Hardening of 1030-1080 ° C, air cooling
Sheet GOST 5582-75 530 205 40 Hardening of 1050-1080 ° C, cooling water

Brinell hardness number

Rolling Standard Classifiers Value, HBW
Forgings GOST 25054-81 1790

Technological Properties

Weldability
no limits

Analogues

USA Germany
S32100 1.4878 (X12CrNiTi18-9)

Standards

Standard Description
GOST 5632-72
GOST 5949-75
GOST 5582-75
GOST 9941-81
GOST 4986-79
GOST 9940-81
TU 14-1-2787-79

Description of chemical elements

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

Description of physical characteristics

Parameter Units of measurement Description
$$E\cdot 10^{9}$$ $$MPa$$ Elastic modulus
$$\alpha\cdot 10^{6}$$ $$K^{-1}$$ Coefficient of thermal (linear) expansion (range 20°C–T)
$$\varkappa$$ $$\frac{W}{m\cdot K}$$ Coefficient of thermal conductivity (the heat capacity of the material)
$$\rho$$ $$\frac{kg}{m^3}$$ The density of the material

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

Designation of types of weldability

Parameter Units of measurement Description
no limits Welding is performed without heating and without subsequent heat treatment
Boundedly welded Welding is possible with heating up to 100–120 °C and subsequent heat treatment
Difficult to weld For obtaining quality welded joints, additional operations are required: heating up to 200–300 °C for welding, heat treatment after welding — annealing
Not applicable for welded structures