| EN | DIN |
| 1.4713 | X10CrAlSi7 |
| 1.4724 | X10CrAlSi13 |
| 1.4742 | X10CrAlSi18 |
| 1.4749 | X18CrN28 |
| 1.4762 | X10CrAlSi25 |
Characteristic properties
- Excellent resistance to oxidising and reducing sulphur
- containing atmospheres
- Good resistance to oxidation
- High thermal conductivity – low thermal expansion
Applications
Stainless ferritic high temperature steels are mostly used in high temperature applications with sulphurous
atmospheres and/or low tensile loads such as for installations within:
• Chemical industry (drums)
• Power industry (coal burners)
• Metalworking industry (heat treatment boxes)
• Furnace technology (walls, doors)
1.4713 stainless does not form brittle phases but should only be exposed to moderately corrosive atmospheres
owing to its low chromium content.
1.4724 stainless is a truly stainless high temperature grade with 13% chromium.
It is not critical in terms of embrittlement.
1.4742 stainless shows better scaling resistance than 4724 and can be subjected to reducing sulphur environments
without risk. It is subject to 475°C embrittlement and grain coarsening at temperatures
above 950°C. σ-phase may form after long time exposures to temperatures around 650°C.
1.4762 stainless with the highest chromium content- is the most resistant to reducing sulphurous gases.
It is susceptible to the same embrittlement phenomena as 4742 whilst σ-phase forms during long exposures
in the range 600°C to 800°C.
Chemical compositon ( weight % )
| Grade | C | Si | Mn | Cr | Al |
| 1.4713 | 0.08 | 0.8 | 0.7 | 6.5 | 0.8 |
| 1.4724 | 0.08 | 1.0 | 0.7 | 13.5 | 1.0 |
| 1.4742 | 0.08 | 1.3 | 0.7 | 18.0 | 1.0 |
| 1.4762 | 0.08 | 1.4 | 0.7 | 24.0 | 1.5 |
| Grades | Max service temperature in dry air, ℃ |
| 1.4713 | 800 |
| 1.4724 | 850 |
| 1.4742 | 1000 |
| 1.4762 | 1150 |
For Details, please Contact
WUXI GUANGLU Special Steel Co., Ltd.
Stainless martensitic • precipitation hardening steel • stainless ferritic — Our answer to your needs
Tel: +86 510 81812873
Email: export@guanglusteel.com
