Alloy ХН75ВМФЮ (ЭИ827)

Designation

Name The value
Designation GOST Cyrillic ХН75ВМФЮ
Designation GOST Latin XH75BMFJu
Transliteration HN75VMFYu
By chemical elements CrNi75ВCuPAl
Name The value
Designation GOST Cyrillic ЭИ827
Designation GOST Latin EI827
Transliteration EhI827
By chemical elements -

Description

Alloy ХН75ВМФЮ used: for the production of parts for energy and aerospace.

Standards

Name Code Standards
Bars and shapes В32 TU 14-1-402-72

Chemical composition

Standard C S P Mn Cr Si Ni Fe Cu Al V B Mo W Ce
TU 14-1-402-72 ≤0.12 ≤0.01 ≤0.015 ≤0.4 9-11 ≤0.4 Rest ≤5 ≤0.07 4-4.6 ≤0.7 0.01-0.02 5-6.5 4.5-5.5 ≤0.01
Ni is the basis.

Mechanical properties

Section, mm σU, MPa d5, % y, % HB, MPa
Bars and rods, hot-rolled (20-55 mm) and machined (20-40 mm.). Heating to 1190-1210 °C, exposure for 6-8 hours, air cooling + ageing at 900-950 °C for 8 hours, air cooling
589 6 9 255-321

Description mechanical marks

Name Description
σU Limit short-term strength
d5 Elongation after rupture
y The relative narrowing
HB Brinell hardness number