317/317L is a molybdenum-bearing austenitic stainless steel with greatly increased resistance to chemical attack as compared to the conventional chromium-nickel austenitic stainless steels such as Alloy 304. In addition, Alloy 317L offers higher creep, stress-to-rupture, and tensile strength at elevated temperatures than conventional stainless steels. It is a low carbon or "L" grade which provides resistance to sensitization during welding and other thermal processes.
Alloy 317L is a lowcarbon corrosion resistant austenitic chromium-nickel-molybdenum stainless steel. The high levels of these elements assure the alloy has superior chloride pitting and general corrosion resistance to the conventional 304/304L and 316/316L grades. The alloy provides improved resistance relative to 316L in strongly corrosive environments containing sulfurous media, chlorides, and other halides.
The low carbon content of Alloy 317L enables it to be welded without intergranular corrosion resulting from chromium carbide precipitation enabling it to be used in the as-welded condition. With the addition of nitrogen as a strengthening agent, the alloy can be dual certified as Alloy 317.
Alloy 317L is non-magnetic in the annealed condition. It cannot be hardened by heat treatment, however the material will harden due to cold working. Alloy 317L can be easily welded and processed by standard shop fabrication practices.
If you are interested in other Stainless Steel Plates/Sheets, please click 302, 303, 304, 304L, 304H, 309, 309S, 310, 310S, 310H, 316, 316L, 317/317L, 317LMN, 321, 321H, 330, 347, 347H, 904L, 403, 405, 409, 410, 410S, 410/HT, 416, 416HT, 420, 422, 430, 440C, Duplex 2205, Duplex 2304, Duplex 2507.
Chemical Composition (%) of 317/317L Stainless Steel Plate
| Carbon | Silicon | Sulfur | Phosphorus | Chromium | Molybdenum | Manganese | Nickel | Nitrogen |
| 0.030 | 0.75 | 0.030 | 0.045 | 18.0-20.0 | 3.0-4.0 | 2.00 | 11.0-15.0 | 0.10 |
Mechanical Properties of 317/317L Stainless Steel Plate
Yield Strengtd
0.2% Offset | Ultimate Tensile
Strength | Elongation
in 2 in. | Hardness |
| psi (min.) | (MPa) | psi (min.) | (MPa) | % (min.) | (max.) |
| 30,000 | 205 | 75,000 | 515 | 40 | 95 Rockwell B |
Physical Properties of 317/317L Stainless Steel Plate
| Density lb/inᶟ | 0.285 |
| Density g/cmᶟ | 7.89 |
| Melting Range | 2540-2630°F/1390 – 1440 °C |
| Thermal Conductivity at 212°F (100°C) | 8.7 BTU/hr/ft²/ft/°F |
| Thermal Conductivity at 212°F (100°C) | 1.26 W/m-°K |
| Electrical Resistivity | 33.5 Microhm-in at 68°C |
| Electrical Resistivity | 85.1 Microhm-cm at 20°C |
