18Г2

Production of tubular billet for the manufacture of seamless pipes.

Classification

Country Section Category
CIS, Russia, Ukraine Structural steel Low alloy structural steel for welded structures

Chemical composition

Standard Fe, % Si, % Mn, % Cr, % Cu, % Ni, % P, % C, % S, %
OST 14-21 - 77 96.675–98.465 0.25–0.55 1.2–1.6 < 0.25 < 0.3 < 0.25 < 0.035 0.14–0.2 < 0.04

Information on suppliers

Mechanical properties at 20 °C

Rolling Standard Size, mm Tension Classifiers \sigma _{U}, MPa \sigma_{Y}, MPa d5, % Treatment
Pipe billet OST 14-21 - 77 Ø < 80 500 320 19

Standards

Standard Description
OST 14-21 - 77

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 mechanical properties

Parameter Units of measurement Description
d5 % Elongation at break
\sigma_{Y} MPa Yield strength
\sigma _{U} MPa Ultimate tensile strength