Alloy ХН50ВМТЮБ (ЭП648)
Designation
| Name |
The value |
| Designation GOST Cyrillic |
ХН50ВМТЮБ |
| Designation GOST Latin |
XH50BMTJuB |
| Transliteration |
HN50VMTYuB |
| The chemical elements |
CrNi50VMoTiAlNb |
| 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 |
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. |
