08H17N15M3T (EI580, 0X17H16M3T)

Stable austenitic steel for the manufacture of urea synthesis columns.

welded structures operating in aggressive environments, increased; 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, % Ti, % Ni, % P, % C, % S, % Mo, %
GOST 5632-72 58.465–66.7 < 0.8 < 2 16–18 0.3–0.6 14–16 < 0.035 < 0.08 < 0.02 3–4

Information on suppliers

Physical characteristics

Temperature, °C $$\rho$$, $$\frac{kg}{m^3}$$
20 8100

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 35
Pipes are hot deformed. GOST 9940-81 510 35
Rod GOST 5949-75 490 196 35 45 Hardening of 1050-1100 ° C, air
Forgings GOST 25054-81 490 196 30–38 40–50
The plates GOST 7350-77 510 196 40 Hardening of 1030-1080 ° C, air cooling
Sheet GOST 5582-75 530 205 35 Hardening of 1050-1080 ° C, cooling water

Brinell hardness number

Rolling Standard Classifiers Value, HBW
Forgings GOST 25054-81 200

Technological Properties

Weldability
no limits

Analogues

Germany USA
X 10 CrNiMoTi 18 12 Stainless Type 316-Proj.70

Standards

Standard Description
GOST 5632-72
TU 14-136-274-79

Description of chemical elements

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

Description of physical characteristics

Parameter Units of measurement Description
$$\rho$$ $$\frac{kg}{m^3}$$ 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