Steel 15Х2ГН2ТРА

Designation

Name The value
Designation GOST Cyrillic 15Х2ГН2ТРА
Designation GOST Latin 15X2GH2TPA
Transliteration 15H2GN2TRA
By chemical elements 15Cr2MnН2TiB

Description

15Х2ГН2ТРА steel is used: for the manufacture of critical parts, which are requirements of high strength, toughness and wear resistance, and for parts exposed to high vibration and dynamic loads after the carburizing and improvements; for the manufacture of parts of pipelines with quenching in oil and tempering in oil or air. Steel can be used at temperatures from -70 °C to +450 °C.

Note

Alloy structural steel high quality.

Standards

Name Code Standards
Blanks. Of the workpiece. Slabs В31 TU 1-92-156-90
Bars and shapes В32 TU 14-1-950-74, TU 14-1-3238-81, TU 14-1-3238-2006

Chemical composition

Standard C S P Mn Cr Si Ni Fe Cu V B Ti Mo W
TU 14-1-3238-81 0.12-0.18 ≤0.025 ≤0.025 0.7-1 1.4-1.8 0.17-0.37 1.4-1.8 Rest - - 0.002-0.005 0.03-0.09 - -
TU 14-1-950-74 0.12-0.18 ≤0.025 ≤0.025 0.7-1 1.4-1.8 0.17-0.37 1.4-1.8 Rest ≤0.25 ≤0.05 0.002-0.005 0.02-0.06 ≤0.15 ≤0.2
Fe is the basis.

Mechanical properties

Section, mm sT|s0,2, MPa σU, MPa d5, % y, % KCU, kJ/m2 HB, MPa
Bars and strip, hot-rolled, forged, kalibrovochnye with special surface finish. Quenching in oil with 800-860 °C + vacation at 150-180 °C air cooling or oil
≥885 ≥1030 ≥12 ≥55 ≥981 311-376

Description mechanical marks

Name Description
sT|s0,2 Yield strength or limit of proportionality with a tolerance for residual deformation of 0.2%
σU Limit short-term strength
d5 Elongation after rupture
y The relative narrowing
KCU Toughness
HB Brinell hardness number