Quality Aluminium. Consistent Supply. On-Time Delivery.
Quality Aluminium. Consistent Supply. On-Time Delivery.
ASTM A358 EFW 904L Pipes are high-alloy austenitic stainless steel pipes manufactured using the Electric Fusion Welding (EFW) process. Grade 904L is designed for superior resistance to strong acids, chlorides, and aggressive chemical environments.
With high nickel and molybdenum content along with added copper, 904L offers exceptional resistance to pitting, crevice corrosion, and stress corrosion cracking. These pipes are widely used in chemical processing, marine, and offshore industries.
| Standard | ASTM A358 / ASME SA358 |
|---|---|
| Grade | 904L |
| UNS Number | N08904 |
| Manufacturing Process | Electric Fusion Welded (EFW) |
| Size Range | 1/2" NB to 24" NB |
| Wall Thickness | Schedule 5S to Schedule 80S |
| Length | 6 Meters Standard / Custom Length |
| Surface Finish | Annealed & Pickled, Polished, Matte Finish |
| End Type | Plain End, Beveled End, Threaded |
| Element | 904L (%) |
|---|---|
| Carbon | 0.02 Max |
| Chromium | 19.0 – 23.0 |
| Nickel | 23.0 – 28.0 |
| Molybdenum | 4.0 – 5.0 |
| Copper | 1.0 – 2.0 |
ASTM A358 EFW 904L Pipes provide exceptional corrosion resistance, structural reliability, and long-term durability in aggressive chemical and marine environments. Their high alloy composition makes them a premium choice for demanding industrial applications.