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ASTM A358 EFW 316 / 316L Pipes are molybdenum-bearing austenitic stainless steel welded pipes, manufactured using Electric Fusion Welding (EFW) process for enhanced reliability and strength. They are suitable for corrosive, high-temperature, and industrial environments.
Grade 316 offers excellent resistance to pitting, crevice corrosion, and chloride-induced corrosion, while 316L provides improved weldability due to its low carbon content, reducing the risk of intergranular corrosion.
| Standard | ASTM A358 / ASME SA358 |
|---|---|
| Grade | 316 / 316L |
| 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 | 316 (%) | 316L (%) |
|---|---|---|
| Carbon | 0.08 Max | 0.03 Max |
| Chromium | 16.0 – 18.0 | 16.0 – 18.0 |
| Nickel | 10.0 – 14.0 | 10.0 – 14.0 |
| Molybdenum | 2.0 – 3.0 | 2.0 – 3.0 |
ASTM A358 EFW 316 / 316L Pipes combine corrosion resistance, strength, and weld reliability for industrial and chemical applications. Their EFW construction ensures a consistent seam, uniform wall thickness, and long-term durability in demanding environments.