317/317L Stainless Steel
UNS S31700/S31703
Type 317/317L Stainless Steel is a more corrosive resistant grade of stainless than Type 316/316L due to its higher chromium, nickel and molybdenum contents. The addition of these give 317/317L higher corrosion resistance, tensile strength, and creep rupture strength at elevated temperatures. Type 317/317L is used in the chemical, petrochemical, and paper industries.
It is the policy of CMC Letco Ind to stock and use only dual rated type 317/317L Stainless Steels. This provides our customers with the advantage of better corrosion resistance found in Type 317L, along with the greater mechanical properties in Type 317.
| ASME Boiler and Pressure Vessel Specifications | |||||||
| Sheet/ Plate | Forgings | Weld Fittings | Rod and Bar | Tubing - Welded/ Smls | Pipe - Welded/ Smls | Bolting- Bolts/ Nuts | Filler Metals |
| SA240 | SA182 | SA403 | SA479 | SA249/ SA213 | SA312/ SA312 | SA193-B8/ SA194-Gr8 | ER317L |
| ASME Boiler and Pressure Vessel Chemical Requirements for Sheet/Plate | ||||||||
| Note: all percentages max unless otherwise specified | ||||||||
| C | Mn | P | S | Si | Ni | Cr | Mo | Ni |
| 0.030 | 2.00 | 0.045 | 0.03 | 0.75 | 11.00-15.00 | 18.00-20.00 | 3.00-4.00 | 0.10 |
| ASME Boiler and Pressure Vessel Mechanical Properties for Sheet/Plate | |||
| Tensile Strength, Min ksi | Yield Strength, (0.2% offset), Min, ksi | Min. Elongation in 2", % | Density lb/in³ |
| 75 | 30 | 40.0 | 0.289 |
CMC Letco Ind shall not be held liable for any type of damages resulting from the use of this information. The end user assumes all risk and liability in connection with the use of this information.