Steel 08Х15Н25М3ТЮБ

Designation

Name The value
Designation GOST Cyrillic 08Х15Н25М3ТЮБ
Designation GOST Latin 08X15H25M3TJuB
Transliteration 08H15N25M3TYuB
By chemical elements 08Cr15Н25Mo3TiAlNb

Description

08Х15Н25М3ТЮБ steel is used: for the manufacture of disks, blades and various fasteners and elements in turbine construction operating at temperatures up to +700 °C.

Note

Dispersion-hardened steel.
Analogue is the steel Grade according to ASTM 662 SA-638/SA-638M.

Chemical composition

Standard C S P Mn Cr Si Ni Fe Al B Ti Mo
≤0.1 ≤0.02 ≤0.02 1-2 14-16 ≤0.5 24-28 Rest 0.8-1.3 ≤0.01 0.9-1.3 2.8-3.5
Fe is the basis.

Mechanical properties

Section, mm sT|s0,2, MPa σU, MPa d5, % y, % KCU, kJ/m2 HB, MPa
Rental in the state of delivery (indicate the direction of cutting out of samples)
400 ≥440 ≥840 ≥18 ≥38 ≥500 ≥207
45-75 ≥430 ≥910 ≥34 ≥49 ≥1800 -

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

Physical characteristics

Temperature Е, HPa r, kg/m3 a, 10-6 1/°C
20 202 8160 -
100 199 - 141
200 194 - 157
300 190 - 161
400 183 - 163
500 177 - 168
600 169 - 173
700 161 - 174

A description of the physical symbols

Name Description
Е The normal elasticity modulus
r Density
l Coefficient of thermal conductivity
R UD. the resistivity

Technological properties

Name The value
Features of heat treatment High mechanical properties are achieved by appropriate heat treatment in solid solution with subsequent precipitation-hardening.