Alloy Х27Ю5А (0Х27Ю5А)
Designation
| Name |
The value |
| Designation GOST Cyrillic |
Х27Ю5А |
| Designation GOST Latin |
X27Ju5A |
| Transliteration |
H27Yu5A |
| The chemical elements |
Cr27Al5 |
| Name |
The value |
| Designation GOST Cyrillic |
0Х27Ю5А |
| Designation GOST Latin |
0X27Ju5A |
| Transliteration |
0H27Yu5A |
| The chemical elements |
0Cr27Al5 |
Description
Alloy Х27Ю5А used: for the manufacture of wire and ribbon for high temperature industrial and laboratory furnaces.
Standards
| Name |
Code |
Standards |
| Tapes |
В34 |
GOST 12766-67 |
Chemical composition
| Standard |
C |
S |
P |
Mn |
Cr |
Si |
Ni |
Fe |
Al |
Ti |
Zr |
| GOST 12766-67 |
≤0.05 |
≤0.015 |
≤0.02 |
≤0.3 |
26-28 |
≤0.6 |
≤0.6 |
The rest |
5-5.8 |
≤0.3 |
≤0.5 |
Fe is the basis.
According to GOST 12766-67, the chemical composition is given for the alloy grade X27Y5A. The presence in the alloy of residual rare-earth elements, as well as barium and calcium, is not a defective feature.
Mechanical characteristics
| sT|s0,2, MPa |
σB, MPa |
d |
y, % |
| The mechanical properties of the alloy at short-term burst tests according to GOST 12766-67. Quenching in water from 760 °C (exposure 30 minutes) |
| ≥533 |
≥663 |
≥15.9 |
- |
| ≥425 |
≥661 |
≥24.3 |
≥62.5 |
| ≥358 |
≥606 |
≥25.5 |
≥53.1 |
| ≥355 |
≥375 |
≥32.9 |
≥71.6 |
| - |
≥87.3 |
≥75.9 |
≥97.4 |
| - |
≥12.75 |
≥127.2 |
- |
| - |
≥8.83 |
≥117.7 |
- |
Description mechanical marks
| Name |
Description |
| sT|s0,2 |
Yield strength or limit of proportionality with a tolerance for residual deformation of 0.2% |
| σB |
Limit short-term strength |
| d |
Elongation after rupture |
| y |
The relative narrowing |
Physical characteristics
| Temperature |
r, кг/м3 |
R, НОм · м |
a, 10-6 1/°С |
| 20 |
7190 |
1370-1470 |
- |
| 1200 |
- |
- |
150 |
A description of the physical symbols
| Name |
Description |
| r |
Density |
| l |
Coefficient of thermal conductivity |
| С |
Specific heat |
Technological properties
| Name |
The value |
| Microstructure |
Ferritic structure. |
| Magnetic properties |
Non-magnetic alloy. |
| Окалиностойкость, heat resistance |
Onlinetony alloy in an oxidizing atmosphere and in the atmosphere containing sulfur and sulfur compounds; is prone to sagging at high temperatures. |
| Operating temperature |
The working temperature of heating element: the Optimum 1250 °C, maximum 1300 °C. |
