Alloy KH23JU5T
Designation
| Name |
The value |
| Designation GOST Cyrillic |
Х23Ю5Т |
| Designation GOST Latin |
X23Ju5T |
| Transliteration |
H23Yu5T |
| The chemical elements |
Cr23Al5Te |
Description
Alloy KH23JU5T used: for the manufacture of heating elements with maximum operating temperature +1400 °C in industrial and laboratory furnaces; heating elements and resistance elements; household appliances and electrical devices of thermal action; resistance elements.
Note
The heat resisting alloy in an oxidizing atmosphere containing sulfur and sulfur compounds, carbon, hydrogen, vacuum, working with high-alumina ceramics, is not prone to pitting corrosion, is prone to sagging at high temperatures can not withstand sudden dynamic loads.
Standards
| Name |
Code |
Standards |
| Classification, nomenclature and general norms |
В30 |
GOST 10994-74 |
| Steel alloy wire |
В73 |
GOST 12766.1-90, TU 14-131-820-90 |
| Tapes |
В34 |
GOST 12766.2-90 |
| Sectional and shaped rolling |
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 |
| GOST 10994-74 |
≤0.05 |
≤0.015 |
≤0.03 |
≤0.3 |
22-24 |
≤0.5 |
≤0.6 |
The rest |
5-5.8 |
0.2-0.5 |
≤0.1 |
≤0.1 |
Fe is the basis.
According to GOST 10994-74 the chemical composition is presented for the alloy X23Y5T. 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 characteristics
| Section, mm |
σB, MPa |
d5, % |
d |
| Cold-rolled steel strip of 0.2-3.2 mm in the delivery state according to GOST 12766.2-90 |
|
≤765 |
≥12 |
- |
| Wire cold-drawn heat-treated in the delivery condition according to GOST 12766.1-90 (the value is δ200) |
|
≤760 |
- |
≥12 |
Description mechanical marks
| Name |
Description |
| Section |
Section |
| σB |
Limit short-term strength |
| d5 |
Elongation after rupture |
| d |
Elongation after rupture |
Physical characteristics
| Temperature |
r, кг/м3 |
R, НОм · м |
a, 10-6 1/°С |
С, Дж/(кг · °С) |
| 20 |
7210 |
1340-1450 |
- |
480 |
| 1000 |
- |
- |
15 |
- |
| 800 |
- |
- |
- |
750 |
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. |
| Magnetic properties |
Ferromagnetic alloy. |
| Operating temperature |
Recommended maximum working temperature of the heating element from 950 °C at a thickness of 0.2 mm to 1400 °C at a thickness ≥ 6.0 mm. |
| Vitality |
Survivability at a temperature of 1300 °C is not less than 70 hours. |
