ASME/ ANSI B16.9 | ASME B16.28 | MSS-SP-43 | BS1560 | BS4504 | BS10.
1/2"NB TO 48"NB IN.
Seamless and Welded.
Schedule 5S, 10S, 20S, S10, S20, S30, STD, 40S, S40, S60, XS, 80S, S80, S100, S120, S140, S160, XXS.
Elbow, Equal Tee, U Pipe Bend, Long & Short Stub End, Caps, Lap Joint Stub End
ASTM A403 / ASME SA403 304, 304L, 304H, 316, 316L, 316H, 316Ti, 310, 310s, 310h, 317, 317L, 321, 321h, 347, 347h, 904L
Stainless steel 317L buttweld fittings are a type of pipe fittings made from stainless steel grade 317L, which is a low carbon version of 317 stainless steel. The "L" stands for low carbon, indicating that 317L has a lower carbon content compared to standard 317 stainless steel. This reduction in carbon content helps to minimize carbide precipitation during welding, which improves the corrosion resistance of the material in welded structures.
Stainless steel 317L offers advantages over 317 primarily due to its lower carbon content, which enhances its resistance to sensitization and reduces the risk of intergranular corrosion. This makes 317L particularly suitable for applications involving welding, where maintaining corrosion resistance in the heat-affected zones is crucial. The improved weldability of 317L ensures stronger and more durable welded joints, making it preferred in industries such as chemical processing, pharmaceuticals, and pulp and paper manufacturing where reliability under corrosive conditions is essential.
The packaging of 317L stainless steel pipe fittings involves thorough cleaning and inspection to ensure quality. Each fitting is then coated with protective materials to prevent corrosion during transportation and storage. Bundling and securing with straps or shrink wrap follows, ensuring fittings remain stable and undamaged. Clear labeling with size, material grade (317L), and quantity facilitates easy identification. Finally, fittings are packed into sturdy containers with detailed documentation, including packing lists and compliance certificates, ensuring they arrive safely and ready for use in demanding industrial applications.
ASTM | EN (DIN) | JIS | UNS | GOST | BS | AFNOR |
---|---|---|---|---|---|---|
317 | 1.4449 (X5CrNiMo17-13-3) | SUS317 | S31700 | - | 317S16 | Z6CND17-13 |
Grade | C (max) | Mn (max) | Si (max) | P (max) | S (max) | Cr | Ni | Mo | N | Other Elements |
---|---|---|---|---|---|---|---|---|---|---|
317 | 0.08 | 2.00 | 0.75 | 0.045 | 0.030 | 18.0-20.0 | 11.0-15.0 | 3.0-4.0 | - | - |
Grade | Yield Strength (MPa) | Tensile Strength (MPa) | Elongation (%) | Hardness (Rockwell B) |
---|---|---|---|---|
317L | 205 | 515-690 | 35 | 70-90 |