AISI 446 UNS S44600 TP446-1 TP446-2 Stainless Steel Seamless Tubes
The grade 446 stainless steel is a ferritic, non-heat treatable stainless steel that provides good resistance
to high temperature oxidation and corrosion.
DIN 1.4762 - with the highest chromium content- is the most resistant to reducing sulphurous gases.
It is susceptible to the same embrittlement phenomena as 1.4742 whilst σ-phase forms during long exposures
in the range 600°C to 800°C.
High temperature ferritic stainless steel 446, characteristics
| Steel grade | Chemical composition wt% | Maximum service temperature in dry air, ℃ |
| TP446-1, 1.4749 | C 0.08, Si 1.3, Mn 0.7, Cr 18.0, Al 1.0 | 1100 |
| TP446-2, 1.4762 | C 0.08, Si 1.4, Mn 0.7, Cr 24.0, Al 1.5 | 1150 |
Product standards
ASTM A268
EN 10297-2
SS 14 23 22
Applications
446 stainless steel should be chosen mainly for service at temperatures above 700°C (1290°F) where
the excellent resistance of the material to slag corrosion and sulphidizing gases is particularly advantageous.
- Recuperators in the metallurgical and glass industries
- Thermocouple protection tubes
- Sootblower tubes
- Injection nozzles
- Muffle tubes in continous wire annealing furnaces
Forms of supply
TP446-1 / TP446-2 Stainless steel seamless tube and pipe in the solution annealed and white pickled condition
or in the bright polished annealed condition.
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
