Technical Data Sheet
Alloy 317 and 317L are molybdenum-bearing austenitic stainless steels. Due to the molybdenum content of 3-4% 317 and 317L are more resistant to general corrosion and pitting/crevice corrosion than type 304. 317 and 317L are used in the Food, Pharmaceutical, Marine and Architecture industries.
| Chemical Composition Limits | ||||||||||
| Weight% | C | Mn | Si | Cr | Ni | Mo | P | S | N | Fe |
| 317 | 0.08 max | 2.0 max | 0.75 max | 18-20 | 11-15 | 3-4 | 0.045 | 0.030 max | 0.10 max | Bal |
| 317L | 0.030 max | 2.0 max | 0.75 max | 18-20 | 11-15 | 3-4 | 0.045 | 0.030 max | 0.10 max | Bal |
Typical Mechanical Properties
| Material | Ultimate Tensile Strength (Mpa) | 0.2 % Yield Strength (Mpa) |
% Elongation in 2" | Rockwell B Hardness |
| Alloy 317 | 515 | 205 | 35 | 95 |
| Alloy 317L | 515 | 205 | 40 | 95 |
| Minimum Mechanical Properties by ASTM A240 and ASME SA 240 |
Availability
Alloy 317 (317L)is available in Bar (Round, Hex, Flat), Tubing (Seamless or Welded), Wire, Forgings, Rings, Sheet, Strip, Plate, Pipe (Seamless or Welded), Billet, Forgings, Flanges and Fittings. View Stock List, Plate Stock List or contact Sales for availability.
Specifications
QQ-S-763
ASTM A240 / ASME SA240
ASTM A249 / ASME SA249
ASTM A312 / ASME SA312
ASTM A409 / ASME A409
ASTM A276 / ASME SA276
ASTM A478 / ASME A478
ASTM A479 / ASME A479
ASTM A314 / ASME SA314
ASTM A473 / ASME SA473
ASTM A182 / ASME A182
ASTM A403 / ASME SA403
BS 970; 317S16 / 317S12
WS 1.4438
AFNOR Z8CND19-15
UNS S31700 (317)
UNS S31703 (317L)