317/317L STAINLESS STEEL By wilsonpipeline.com

317/317L Stainless Steel is an austenitic stainless steel which contains molybdenum. This grade has improved corrosion resistance over 304/304L Stainless Steel and 316/316L Stainless Steel. 317/317L Stainless Steel By controlling the addition of nitrogen, 317 Stainless Steel commonly meets the properties of the straight grade 317 Stainless Steel except for it’s lower carbon content.

Specifications

UNS S31703  ASTM: A 240, ASME: SA-240

Chemical Composition, %NiCrMnSiCSPMo NFeMIN11.018.0––––– 3.00–– MAX  15.0 20.0 2.0  0.75 0.030.03  0.045 4.000.10  Balance 

Attributes

Excellent corrosion resistance Excellent Strength 

Improved general and localized corrosion to 316/316L stainless steel

Available Forms

317/317L Stainless Steel Round Bar, 317/317L Stainless Steel Pipes, 317/317L Stainless Steel Tubes, 317/317L Stainless Steel Flanges, 317/317L Stainless Steel Pipe Fittings, Welding Materials

Applications

Shipbuilding, Nuclear power, Marine engineering, 

Petroleum, Chemical, Mining,Sewage treatment, Natural gas and Pressure vessels and other industries.

Physical Properties

Density: 0.285 lb/inch3  Melting Range: 2450 – 2630°F Poisson’s Ratio: 0.3 

Electrical Resistivity: 475 Ohm-circ mil/ft

Industry Names

317 Stainless Steel, 317L Stainless Steel

Mechanical Properties

Representative Tensile PropertiesUltimate Tensile Strength, ksi 750.2% Yield Strength, ksi 30Elongation, % 40Hardness MAX, Brinell217

Source: wilsonpipeline Pipe Industry Co., Limited (www.wilsonpipeline.com)