σU
MPa
σY
MPa

20YUCH (20YUCHA)

for the manufacture of pipes, casings, heads, flat flanges and other parts operating in environments containing hydrogen sulfide and carbon dioxide at temperatures ranging from -40 ° C to +475 ° C; parts of pipe fittings to the heat treatment; welded receptacles gas and petrochemical industries; seamless hot gas pipes increased corrosion resistance and cold resistance for use in the oil and gas pipeline systems, technological trade pipelines transporting oil and oil products, as well as in reservoir pressure maintenance systems in the conditions of the oil-producing companies operated in environments containing hydrogen sulfide and carbon dioxide.

Classification

Country Section Category
CIS, Russia, Ukraine Structural steel Alloyed structural steel

Chemical composition

Standard Fe, % Si, % Ca, % Mn, % Cu, % Ni, % Al, % As, % P, % C, % S, % N, %
TU 14-1-4853 - 90 97.883–99.139 0.17–0.37 0.001–0.01 0.5–0.8 < 0.25 < 0.25 0.03–0.1 < 0.08 < 0.02 0.16–0.22 < 0.005 < 0.012

Information on suppliers

Mechanical properties at 20 °C

Rolling Standard Size, mm Tension Classifiers \sigma _{U}σU, MPaMPa \sigma_{Y}σY, MPaMPa d5, % Treatment
The plates TU 14-1-4853 - 90 10–160 410 234 23

Analogues

Germany USA
L 245 MB 5L Gr B

Standards

Standard Description
TU 14-1-4853 - 90

Description of chemical elements

Element Units of measurement Description
Fe % Iron
Si % Silicon
Ca % Calcium
Mn % Manganese
Cu % Copper
Ni % Nickel
Al % Aluminium
As % Arsenic
P % Phosphorus
C % Carbon
S % Sulfur
N % Nitrogen

Description of mechanical properties

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