03H21N32M3B (03H21N32M3B-VI, CS33, CHS33-VI, EP864)

For the manufacture of products for operating at high temperatures in special environments; steam generators to operate at temperatures up to +750 ° C; refinery equipment operating in environments with a high content of hydrogen sulfide and chlorides at temperatures up to +200 ° C; casing and tubing for the oil and gas wells production with a high content of hydrogen sulfide; Device for supplying the gas-vapor mixture in the well; pipelines for sea water.

Classification

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

Chemical composition

Standard Fe, % Si, % Mn, % Cr, % Ni, % P, % C, % S, % Nb, % Mo, %
TU 14-159-251 - 95 37.695–43.3 < 0.35 1.3–1.7 20–22 31.5–33 < 0.015 < 0.03 < 0.01 0.9–1.2 3–4

Information on suppliers

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
Nb % Niobium
Mo % Molybdenum