Heat-resistant boiler steel H6S2, X10CrAl7, X10CrAlSi7, 1.4713 according to EN 10095, EN 10088-1, SEW 470, PN-71/H-86022.
| Standard | Steel Grade | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Chemical Composition % | |||||||||
| C: | Mn: | Si: | P: | S: | Cr: | Ni: | Al: | Cu: | |
| EN/DIN | 1.4713 - X10CrAl7 - X10CrAlSi7 | ||||||||
| <0.12 | <1.0 | 0.5 - 1.0 | <0.04 | <0.015 | 6.0 - 8.0 | - | 0.5 - 1.0 | - | |
| DIN | 1.4712 - X10CrSi6 | ||||||||
| <0.12 | <1.0 | 2.0 - 2.5 | <0.045 | <0.030 | 5.5 - 6.5 | - | - | - | |
| PN | H6S2 | ||||||||
| <0.15 | <0.7 | 1.5 - 2.0 | <0.040 | <0.030 | 5.0 - 6.5 | <0.6 | - | <0.3 | |
| GOST | 15Х6СЮ | ||||||||
| <0.15 | <0.5 | 1.2 - 1.8 | <0.03 | <0.025 | 5.5 - 7.0 | - | 0.7 - 1.1 | - | |
X10CrAl7, X10CrAlSi7, 1.4713 - specifications and application
H6S2 is a ferritic heat-resistant steel showing resistance to sulfur compounds, reducing and carburizing gases, which can operate in temperatures up to 800 in a non-aggressive environment.
It is used in the production of load-bearing elements, parts of steam boilers, construction of soot blowers, supports for heaters, hubcaps, sliding rails, chains and sieves, parts in the automotive, energy and metallurgical industries.
The grade during welding and after the joining process requires heating. The steel is resistant to light loads during continuous operation.
Mechanical and physical properties of X10CrAl7, 1.4713 steel
- Tensile strength, Rm: 420 - 620 MPa
- The yield point, Rp0,2: >220 MPa
- Elongation, A:> 15%
- Hardness, HB: <192
- Specific resistance, Ω: 0.70 mkOhm * m
- Linear expansion coefficient, α: 11.5 - 13.0 * 10-6 K-1
- Thermal conductivity, λ: 23.0 W * m-1 * K-1
- Thermal capacity, cp: 450 J * kg-1 * K-1
Mechanical properties at elevated temperatures of X10CrAl7, 1.4713
| Temperature (℃) | 500 | 600 | 700 | 800 | 900 |
|---|---|---|---|---|---|
| Creep strength, Rz/1000 (MPa) | 160 | 55 | 17 | 7.5 | 3.6 |
| Creep strength, Rz/10000 (MPa) | 100 | 35 | 9.5 | 4.3 | 1.9 |
| Creep strength, Rz/100000 (MPa) | 55 | 20 | 5 | 2.3 | 1.0 |
| Creep limit, R1/1000 (MPa) | 80 | 27.5 | 8.5 | 3.7 | 1.8 |
| Creep limit, R1/10000 (MPa) | 50 | 17.5 | 4.7 | 2.1 | 1.0 |
Heat and plastic treatment of H6S2, X10CrAl7, 1.4713
- Annealing at 780 - 840℃ with cooling in water or air
In the H6S2 grade and its replacement, we offer:
- Heat-resistant peeled bars X10CrAl7, X10CrAlSi7, 1.4713
- Heat-resistant sheets X10CrAl7, X10CrAlSi7, 1.4713
Other grades designations:
4713, Sicromal, X 10 CrAl 7, X 10 CrAlSi 7, X10CrSi6, X 10 CrSi 6, 1.4712, CSN 17113, 15Ch6SJU, 15Х6СЮ, 10AlCr70.