TP444 ( 18Cr-2Mo ), UNS S44400 stainless steel tube and pipe
This is a ferritic stainless steel pipe and tube that delivers superior performance regarding stress
corrosion cracking, which is the disadvantage of austensitic stainless steel, and also has intergranular
corrosion resistance, pitting corrosion resistance, and crevice corrosion resistance that have been significantly enhanced.
A nickel-free molybdenum-alloyed ferritic stainless steel with very good corrosion resistance,
good cold formability and high strength. Ferritic grade 444, EN1.4521, DIN X2CrMoTi18-2 stainless
steel allows for thinner walls in tanks and is not prone to stress corrosion cracking.
Grade 444 is a 2% molybdenum-alloyed ferritic stainless steel with medium chromium that can be
used in many corrosive environments. As a ferritic stainless steel, it has high resistance to
chloride-induced stress corrosion cracking. Because of its titanium alloying, stainless 444 can be
welded in all dimensions without becoming susceptible to intergranular corrosion.
Typical applications
- Hot water tanks
- Drinking water pipes
Chemical composition ( weight % )
| Grade | C | Si | Mn | P | S | Cr | Ni | Mo | N | Ti |
| TP444, 18Cr-2Mo, UNS S44400 | 0.025 max | 1.00 max | 1.00 max | 0.040 max | 0.030 max | 17.5~19.5 | 1.00 max | 1.75~2.5 | 0.035 max | (Ti+Cb)0.2+4(C+N) min, 0.8 max |
Mechanical properities
| Tensile strength Mpa | Yiled strength Mpa | Elongation min% |
| 415 | 275 | 20 |
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
