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Gayatri tubes is the biggest manufacturer, supplier of all types of stainless steel product and other material’s product as well. We are also exporter, and wholesaler of SS 317 / 317L Pipe Fittings in various dimensions, diameters, lengths, thicknesses, with using national standard and specification. The stainless steel grade 317 is austenitic nickel chromium steel and offers the best corrosion resistance. This grade has a molybdenum element with nickel chromium alloy; this addition of alloy improves its pitting resistance property. This grade provides higher tensile strength and creep strength at a higher temperature. Grade 317l stainless steel is austenitic nickel chromium steel with low carbon content. This grade has good resistance property at the 1700 degrees F temperature and used in this application where high corrosion resistance is needed. It has good formability and weldability property.
We manufacture ss pipe fittings of different types like buttweld pipe fitting, forged pipe fitting, ferrule pipe fitting, buttweld and forged tees pipe fitting, elbow pipe fitting, forged 90 deg elbow pipe fitting, tee type, cross, etc. The SS UNS S31700, S31703 Pipe Fittings have many features such as high corrosion resistance in reduce and tough environment, lower intergranular precipitation, high resistance to pitting corrosion and crevice, etc. The socket weld pipe fitting have resistance property to resist acid attack and resistance to corrosion in sulfurous media. The ss 317/317l elbow pipe fittings are used in high temperature and pressure application and it offers many properties like high mechanical strength, resistance to creep, etc.
The application of SS 1.4438, 1.4449 Butt weld Pipe Fittings are – tie pipe fitting is used in chemical industry, offshore and oil drilling company, petrochemical industry, marine industry, oil, and gas industry, etc. The pipe fitting is also used in many types of equipment like boiler equipment, surgery equipment, hotel, and chemical equipment. It is also used in many processes like a chemical process, food process, gas process, seawater application and so on.
We apply different types of tests like micro test, macro test, mechanical test, hardness test, toughness test, impact test, destructive test, intergranular test, chemical test, strength test, and so on. We offer the best packaging services of our customers.
| STANDARD | WERKSTOFF NR. | UNS | JIS | EN |
| SS 317 | 1.4449 | S31700 | SUS 317 | - |
| SS 317L | 1.4438 | S31703 | SUS 317L | X2CrNiMo18-15-4 |
| Specifications | ASTM A403 / ASME SA403 |
| Dimensions | ASME/ANSI B16.9, ASME B16.28, MSS-SP-43 |
| Size | 1/8” NB TO 48” NB. (Seamless & 100% X-Ray Welded, Fabricated) |
| Type | Seamless / Welded / Fabricated |
| Thickness | Sch 5s, Sch 10s, Sch 40s, Sch 80s, Sch 160s, Sch XXS |
| Bending Radius | R=1D, 2D, 3D, 5D, 6D, 8D, 10D or Custom |
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | Fe |
| SS 317 | 0.08 max | 2.0 max | 1.0 max | 0.045 max | 0.030 max | 18.00 - 20.00 | 3.00 - 4.00 | 11.00 - 15.00 | 57.845 min |
| SS 317L | 0.035 max | 2.0 max | 1.0 max | 0.045 max | 0.030 max | 18.00 - 20.00 | 3.00 - 4.00 | 11.00 - 15.00 | 57.89 min |
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 7.9 g/cm3 | 1400 °C (2550 °F) | Psi – 75000 , MPa – 515 | Psi – 30000 , MPa – 205 | 35 % |
