Alloy ХН43БМТЮ (ЭП915)

Designation

Name The value
Designation GOST Cyrillic ХН43БМТЮ
Designation GOST Latin XH43BMTJu
Transliteration HN43BMTYu
By chemical elements CrNi43BeCuTeAl
Name The value
Designation GOST Cyrillic ЭП915
Designation GOST Latin EP915
Transliteration EhP915
By chemical elements -

Description

Alloy ХН43БМТЮ used: for the production of long products, hot and cold rolled sheet, forgings intended for fabrication of oil and gas and chemical industry and power engineering.

Standards

Name Code Standards
Processing of metals by pressure. Forgings В03 TU 14-1-3617-83
Bars and shapes В32 TU 14-1-3618-83
Sheets and strips В33 TU 14-1-4155-86, TU 14-1-4835-90, TU 14-1-4836-90
Blanks. Of the workpiece. Slabs В31 TU 14-1-4546-88

Chemical composition

Standard C S P Mn Cr Si Ni Fe Al V Ti Mo Nb Ca Ce
TU 14-1-4155-86 0.03-0.7 ≤0.01 ≤0.01 ≤0.6 13-15 ≤0.5 42-45 Rest 0.2-1 0.1-0.5 1.5-2 1-2 2.3-2.8 ≤0.02 ≤0.02
Ni is the basis.
According to TU 14-1-3617-83 the chemical composition is given for alloys of grades ХН43БМТЮ-ВД (ЭП915-ВД) and ХН43БМТЮ-ИД (ЭП915-ИД). Cerium and calcium are administered by calculation and chemical analysis is not determined.
According to TU 14-1-4155-86 the chemical composition is given for alloys of grades ХН43БМТЮ-ВД (ЭП915-ВД) and ХН43БМТЮ-ИД (ЭП915-ИД). Cerium and calcium are introduced into the metal by calculation and chemical analysis is not determined. In the finished metal, deviations in chemical composition are allowed: for carbon ± 0.010%, for molybdenum +0.20%, for titanium ± 0.10%. The permissible residual copper content is not more than 0.25%, tungsten - not more than 0.20%. Calcium is introduced into the metal when melting in open furnaces.

Mechanical properties

Section, mm sT|s0,2, MPa σU, MPa d5, % y, % KCU, kJ/m2
Sheets cold rolled on the other 14-1-4155-86. Tempering in air or under a water shower from 1010-1050 °C, exposure at the rate of 2-3 minutes per 1 mm section (delivery condition) or Aging at 730-770 °C (exposure for 8 hours), air cooling + Ageing at 630-670 (extract 8 hours), air cooling
≥785 ≥1130 ≥15 - -
≥590 ≥780 ≥5 - -
Forging as supplied on the other 14-1-3617-83 (samples)
≥750 ≥1150 ≥18 ≥30 ≥590
≥600 ≥800 ≥5 ≥10 -

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