Steel 13Н5А

Designation

Name The value
Designation GOST Cyrillic 13Н5А
Designation GOST Latin 13H5A
Transliteration 13N5A
By chemical elements 13Н5

Description

13Н5А steel is used: for the production of stamped blanks of the blades of compressors and forged rivets; for the manufacture of Cam washers, rollers, and actuators in the aircraft industry.

Standards

Name Code Standards
Bars and shapes В22 GOST 1133-71, GOST 2590-2006, GOST 2591-2006, GOST 2879-2006
Bars and shapes В32 GOST 7417-75, GOST 8559-75, GOST 8560-78, TU 14-1-2765-79, TU 14-1-950-74
Blanks. Of the workpiece. Slabs В21 OST 14-13-75
Blanks. Of the workpiece. Slabs В31 TU 1-92-156-90

Chemical composition

Standard C S P Mn Cr Si Ni Fe Cu V Ti Mo W
TU 14-1-950-74 0.1-0.17 ≤0.015 ≤0.025 0.3-0.6 ≤0.3 0.17-0.37 4.5-5 Rest ≤0.25 ≤0.05 ≤0.03 ≤0.15 ≤0.2
Fe is the basis.
According to TU 14-1-2765-79 the chemical composition is given for steel 13Н5А-Ш.
TU 14-1-950-86 chemical composition is given for steel 13N5A.

Mechanical properties

Section, mm sT|s0,2, MPa σU, MPa d5, % y, % KCU, kJ/m2 HB, MPa
Bars and strip hot rolled and forged bars and grooved. Quenching with 760-800 °C in oil, leave at 150-170 °C, air cooling
≥735 ≥930 ≥11 ≥55 ≥980 302-415

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