317L Stainless Steel Plate – UNS S31703
Alloy 317L is a low-carbon, high molybdenum austenitic stainless steel with a higher nickel alloy content than 316L. Developed to resist the attack of sulfuric acid compounds, this alloy combines good corrosion resistance with excellent mechanical properties and ease of fabrication. These alloys are frequently used for flue gas desulfurization services in fossil fuel power plants. Compared to other austenitic stainless steels, 317L offers a higher creep strength, stress to rupture, and tensile strength at elevated temperatures.
- Inventory & Specs
- Chemical Composition
- Physical Properties
- Mechanical Properties
- Datasheet
- Additional Info
Inventory Size Ranges for 317L
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The higher molybdenum and chromium content of 317L provides excellent corrosion resistance compared to stainless steel grades like 304 or 316, and it resists phosphoric acid, sulfuric acid, and chloride pitting/crevice corrosion. The low carbon content of this grade of 317 also provides resistance to sensitization during welding, which allows it to maintain its corrosion resistance at grain boundaries and prevent intergranular stress corrosion cracking.
While 317L cannot be hardened by heat treatment, it can be cold worked.
Other industry standards we comply with:
Common Trade Names
Industry Applications for 317L
- Flue gas desulfurization systems found in fossil fuel plants
- Chemical and Petrochemical Processing
- Food and Beverage Processing
- Power Generation — condensers
- Pulp and Paper Processing
- Textiles with acid dyes
Features
- Good corrosion resistance
- Good mechanical properties
- Ease of fabrication
- Produces stronger welds due to lower carbon content
- Resists the attack of sulfuric acid compounds
Chemical Composition
Percent maximum unless a range is specified
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