Stainless Steel 317 and 317L are high-performance austenitic stainless steel alloys known for their excellent corrosion resistance and durability in harsh environments. These alloys contain a higher percentage of chromium, nickel, and molybdenum compared to standard stainless steels, making them particularly well-suited for applications in corrosive and challenging conditions.
Fasteners made from Stainless Steel 317 and 317L exhibit superior corrosion resistance, even in highly corrosive environments such as chemical processing, petrochemical, and marine applications. The presence of molybdenum enhances the alloys' resistance to pitting and crevice corrosion, providing an added layer of protection against localized corrosion damage.
One of the key features of Stainless Steel 317 fasteners is their ability to maintain high tensile strength and excellent mechanical properties at elevated temperatures. This makes them suitable for use in applications where exposure to high temperatures is a concern, such as in heat exchangers and furnace components.
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The dual-certified nature of Stainless Steel 317L, which meets the requirements of both 317 and the low carbon content specification of 317L, makes it versatile in various industries. The low carbon content in SS 317L Fasteners minimizes carbide precipitation during welding, reducing the risk of intergranular corrosion. This characteristic is especially crucial in applications where welding is a common fabrication process.
Typical fastener types made from Stainless Steel 317 and 317L include bolts, nuts, screws, washers, and studs. These fasteners are available in various sizes and dimensions to meet the diverse needs of different applications.
Industries that often utilize Stainless Steel 317 fasteners include chemical and petrochemical processing, pulp and paper, pharmaceuticals, and food processing. The alloys' resistance to corrosive chemicals and their durability in challenging environments make them valuable components in critical systems where reliability is paramount.
ASTM A193, A194 / ASME SA193, SA194
DIN, ISO ,JIS ,GB, IS, BS, ASTM and all International Standards
M3 - M100 | 3/6″ - 4″ | Custom Sizes
DIN 931, 933, 934, 7991, 976, 125, ASME B18.2.1, B18.3
UNF, BSW, BSF, METRIC, UNC, or as required
ASME B1.1 2A/3A – 2B/3B Inch Unified Threads and B1.13M 6h-6G Metric Coarse Threads
Hex, Threading, Square, Round as per Gauge Etc.
Hex, Square, Round, Hex flange, Flat, T-head & Triangular etc.
| STANDARD | WERKSTOFF NR. | UNS | JIS | EN |
| SS 317 | 1.4449 | S31700 | SUS 317 | – |
| SS 317L | 1.4438 | S31703 | SUS 317L | X2CrNiMo18-15-4 |
| 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 % |
Oil & Gas Industrires
Chemical Industries
Construction Industries
Offshore Pipelines & Pipe Works
Petrochemical Industry
Shipbuilding Industries
Hydraulic Applications
Piping Systems
Refining Industry
Food Processing Industry
Pulp & Paper Industry
Power Plant Industry
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