Alloy ЭП539ЛМУ

Designation

Name The value
Designation GOST Cyrillic ЭП539ЛМУ
Designation GOST Latin EP539LMU
Transliteration EhP539LMU
By chemical elements -

Description

Alloy ЭП539ЛМУ used: for the production of cast bar billets (LPZ), intended for subsequent remelting and casting of gas turbine components.

Note

High-temperature Nickel-based alloy.

Standards

Name Code Standards
Bars В55 TU 1-809-1025-98

Chemical composition

Standard C S P Mn Cr Si Ni Fe N Al B Ti Mo Pb Bi Nb W Ce O Co Y
TU 1-809-1025-98 0.08-0.14 ≤0.01 ≤0.015 ≤0.3 15.7-17.1 ≤0.3 Rest ≤1 ≤0.008 3.2-4 0.015-0.02 2.2-3 1.5-2.4 ≤0.001 ≤0.0005 1.2-1.8 3.5-5 ≤0.02 ≤0.005 4-6 ≤0.04
Ni is the basis.
According to TU 1-809-1025-98 chemical composition is given for the alloy grade EP539LMU-VI. The total content of Aluminum + Titanium = 5.50-6.40%.

Mechanical properties

Section, mm sT|s0,2, MPa σU, MPa d5, % KCU, kJ/m2
Cast rod stock (LPZ). Alloy ЭП539ЛМУ-VI. Heating to 1170-1190 °C, exposure 4 hours, air cooling or Heating to 840-860 °C, exposure 24 h, air cooling
≥617 ≥725 ≥3 ≥147

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
KCU Toughness