07H16N6 (EP288, X16H6)

for products operating at atmospheric conditions, acetic acid and other saline environments and for elastic elements.; cryogenic equipment; austenitic steel — martensitic class

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 72.755–79.45 < 0.8 < 0.8 15.5–17.5 5–8 < 0.035 0.05–0.09 < 0.02

Information on suppliers

Mechanical properties at 20 °C

Rolling Standard Size, mm Tension Classifiers $$\sigma _{U}$$, $$MPa$$ $$\sigma_{P}$$, $$MPa$$ $$\epsilon_L$$, % $$\psi$$, % $$KCU\cdot 10^{3}$$, $$\frac{J}{m^2}$$ Treatment
Rod GOST 5949-75 1080 880 12 50 690
Forgings GOST 25054-81 1176 980 12–13 50 690
The plates GOST 7350-77 1180 390 15 Normalization of 1030-1050 ° C, air
Sheet GOST 5582-75 1180 20 Hardening of 1030-1070 ° C, cooling water

Brinell hardness number

Rolling Standard Classifiers Value, HBW
Forgings GOST 25054-81 341–415

Analogues

USA Germany
S30100 1.4310 (X10CrNi18-8)

Standards

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 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
$$KCU\cdot 10^{3}$$ $$\frac{J}{m^2}$$ Impact toughness