Designation
Name |
The value |
Designation GOST Cyrillic |
Х15Ю5 |
Designation GOST Latin |
X15Ju5 |
Transliteration |
H15Yu5 |
By chemical elements |
Cr15Al5 |
Description
Alloy H15YU5 used: for the manufacture of resistive elements; electric heating devices.
Note
The heat resisting alloy in an oxidizing atmosphere containing sulfur and sulfur compounds, working with high-alumina ceramics; prone to sagging at elevated temperatures, can not withstand sudden dynamic loads.
Alloy H15YU5 — substitute alloy Х13Ю4.
Standards
Name |
Code |
Standards |
Classification, nomenclature and General rules |
В30 |
GOST 10994-74 |
Wire, steel, alloy |
В73 |
GOST 12766.1-90 |
Tape |
В34 |
GOST 12766.2-90 |
Bars and shapes |
В32 |
GOST 12766.3-90, GOST 12766.4-90, TU 14-11-245-88 |
Chemical composition
Standard |
C |
S |
P |
Mn |
Cr |
Si |
Ni |
Fe |
Al |
Ti |
Ca |
Ce |
Zr |
GOST 10994-74 |
≤0.08 |
≤0.015 |
≤0.03 |
≤0.7 |
13.5-15.5 |
≤0.7 |
≤0.6 |
Rest |
4.5-5.5 |
0.2-0.6 |
≤0.1 |
≤0.1 |
≤0.1 |
Fe is the basis.
In accordance with GOST 10994-74, the content of calcium and cerium is calculated. When smelting an alloy intended for the production of heating elements, fresh charge materials should be used. Waste of own marks may be used.
Mechanical properties
Section, mm |
σU, MPa |
d5, % |
d |
HB, MPa |
Cold-rolled steel strip of 0.2-3.2 mm in the delivery state according to GOST 12766.2-90 |
|
≤736 |
≥16 |
- |
150-200 |
Wire cold-drawn heat-treated in the delivery condition according to GOST 12766.1-90 (the value is δ200) |
|
≤740 |
- |
≥16 |
- |
Description mechanical marks
Name |
Description |
σU |
Limit short-term strength |
d5 |
Elongation after rupture |
d |
Elongation after rupture |
HB |
Brinell hardness number |
Physical characteristics
Temperature |
r, kg/m3 |
R, Mr. · m |
a, 10-6 1/°C |
С, J/(kg · °C) |
20 |
7280 |
1240-1340 |
- |
480 |
1000 |
- |
- |
16 |
- |
800 |
- |
- |
- |
770 |
A description of the physical symbols
Name |
Description |
Е |
The normal elasticity modulus |
l |
Coefficient of thermal conductivity |
R |
UD. the resistivity |
С |
Specific heat |
Technological properties
Name |
The value |
Microstructure |
Ferritic structure. |
Features of heat treatment |
After heat treatment of cold drawn wire mode: holding at 750 °C 30 min., cooling with the furnace to 150 °C, 48 h exposure, the value of temperature coefficient of electrical resistance of the AU in the temperature range from 20 to 100 °C is equal to 0,4·10-4 1/°C. |
Magnitnoi |
Ferromagnetic alloy. |
Survivability |
Survivability at a temperature of 1150 °C for at least 120 hours. |
The survivability of the alloy for heating elements |
At least 120 hours at a test temperature of 1150 °C. the recommended maximum operating temperature of the heating element from 750 °C at a thickness of 0.2 mm to 1000 °C at a thickness ≥ 6.0 mm. |