Alloy ХН50ВМТЮБ (ЭП648)
Designation
Name |
The value |
Designation GOST Cyrillic |
ХН50ВМТЮБ |
Designation GOST Latin |
XH50BMTJuB |
Transliteration |
HN50VMTYuB |
The chemical elements |
CrNi50ВCuTeAlBe |
Name |
The value |
Designation GOST Cyrillic |
ЭП648 |
Designation GOST Latin |
EP648 |
Transliteration |
EhP648 |
The chemical elements |
- |
Description
Alloy ХН50ВМТЮБ used: for the production of cold rolled sheets; pipes and tubes by hot forming; the production of highly loaded parts, fittings, flanges, sheet hire for a limited term service at temperatures up to +950 °C; the manufacture of aeronautical engineering parts (discs, gas turbine blades).
Note
High-temperature Nickel-based alloy.
Standards
Name |
Code |
Standards |
Sectional and shaped rolling |
В32 |
GOST 22411-77, TU 14-1-4103-86, TU 14-1-3046-80, TU 14-1-3046 |
Bulls. Blanks. Slabs |
В31 |
OST 1 90303-81, OST 1 90424-92, TU 14-1-1213-75, TU 1-809-823-99 |
Sheets and stripes |
В33 |
TU 14-1-1052-74, TU 14-1-1072-74 |
Tapes |
В54 |
TU 14-1-1423-75 |
Metal forming. Forgings |
В03 |
TU 14-1-1530-75 |
Pipes steel and connecting parts to them |
В62 |
TU 14-3-837-79, TU У 14-8-37-2001 |
Chemical composition
Standard |
C |
S |
P |
Mn |
Cr |
Si |
Ni |
Fe |
Al |
B |
Ti |
Mo |
Nb |
W |
Ce |
TU 14-1-1072-74 |
≤0.1 |
≤0.01 |
≤0.015 |
≤0.5 |
32-35 |
≤0.4 |
The rest |
≤4 |
0.5-1.1 |
≤0.008 |
0.5-1.1 |
2.3-3.3 |
0.5-1.1 |
4.3-5.3 |
≤0.03 |
Ni is the basis.
According to TU 14-1-3046-80, TU 14-1-1072-74 and TU 14-1-1052-74, TU 14-1-1423-75, the chemical composition is given for the alloy of grade ХН50ВМТЮБ-ВИ (ЭП648-ВИ) . Boron and cerium are introduced into the metal by calculation and chemical analysis are not determined. Deviations in chemical composition in accordance with GOST 10500, GOST 5632.
According to TU 14-1-4103-86, the chemical composition is given for the alloy KhN50VMTUB-ID (EP648-ID). Boron and cerium are introduced into the metal by calculation and chemical analysis are not determined. As a charge for the smelting of the alloy, electrolytic refined chromium grade "ERH" is used. The use of chromium grades "ХР99,2 (ач)", "ХР98,7 (ач)", "ХР98,5 (ач)" is allowed.
Mechanical characteristics
Section, mm |
sT|s0,2, MPa |
σB, MPa |
d5, % |
d4 |
y, % |
kJ/m2, кДж/м2 |
Tape supplied on the other 14-1-1423-75. Annealing in air 1130-1150 °C |
0.15-0.8 |
- |
≥1030 |
- |
≥25 |
- |
- |
Hot-rolled steel sheets in the delivery condition on the other 14-1-1072-74. Heating up to 1130-1150 °C (aging for 1 h) + Quenching in air or in water |
|
- |
≥1030 |
≥30 |
- |
- |
- |
Cold-rolled steel sheets in the delivery condition on the other 14-1-3046-80 |
|
- |
≤1030 |
≥35 |
- |
- |
- |
Cold-rolled steel sheets according to TU 14-1-3046-80. Heating up to 1130-1150 °C (aging for 1 h), air cooling + Ageing at 900 °C (aging 16 h), air cooling |
|
- |
≥760 |
≥17 |
- |
- |
- |
Bars hot rolled and forged on the other 14-1-3046-80. Heating up to 1130-1150 °C (aging for 1 h), air cooling + Ageing at 880-920 °C (aging 16 h), air cooling |
|
≥340 |
≥780 |
≥25 |
- |
- |
≥340 |
|
- |
≥340 |
≥13 |
- |
≥18 |
- |
Tubular billet on the other 14-1-4103-86. The longitudinal samples. Annealing in air 1130-1150 °C (exposure for 1 hour) |
20-25 |
≥265 |
≥640 |
≥40 |
- |
- |
- |
Description mechanical marks
Name |
Description |
Section |
Section |
sT|s0,2 |
Yield strength or limit of proportionality with a tolerance for residual deformation of 0.2% |
σB |
Limit short-term strength |
d5 |
Elongation after rupture |
d4 |
Elongation after rupture |
y |
The relative narrowing |
kJ/m2 |
Toughness |
Technological properties
Name |
The value |
Macrostructure and contamination |
In the macrostructure of the billet is not allowed traces of shrinkage, podnasadochnogo looseness, delamination, subcortical bubbles, cracks, dark or light brown, non-metallic foreign microflute and foreign metal inclusions that are visible without using the magnifying devices. Alloy macrostructure for Central porosity, point heterogeneity, I segregated the square should not exceed 1 point for each type. |