ASTM A268/A268M UNS S44600 TP446-1 and TP446-2 stainless seamless steel tube
Ferritic stainless steel grade 446 is a ferritic heat resisting steel useful up to 1100°C.
This high temperature stainless steel grade combines the following characteristics
- Good oxidation resistance
- Excellent resistance to sulphidation particularly in reducing conditions.
- Much better than austenitic heat resisting grades due to absence of nickel
- Good resistance to molten copper, lead and tin
- Poor high temperature strength
- Weldable with austenitic electrodes
Applications include
- Glass making (float glass) -- We provide 446, X18CrN28 cold drawn stainless steel wire, bright hard, dia 1.0mm, other dimensions by agreement.
- metallurgical plant (copper processing)
- burners
- annealing boxes
- kiln linings
- thermocouple tubes
- injection nozzles
Chemical composition ( weight % )
| Grade | element % |
| C | Si | Mn | P | S | Cr | Ni | N |
| TP446-1, S44600, X18CrN28, 1.4749 | 0.20 max | 0.75 max | 1.00 max | 0.040 max | 0.030 max | 23.00 ~ 30.00 | 0.50 max. | 0.10 ~ 0.25 |
| TP446-2, S44600, X10CrAlSi25, 1.4762 | 0.12 max | 0.75 max | 1.00 max | 0.040 max | 0.030 max | 23.00 ~ 30.00 | 0.50 max. | 0.10 ~ 0.25 |
TP446-2 is a lower carbon version of TP446-1 that has a lower tensile strength but improved ductility
and fracture toughness.
Production technology
Cold rolled ( drawn )
Delivery state
annealed
Surface finish
pickled or polished
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
