SS 317 / SS 317L Pipe & Tubing

Stainless Steel 317L is a molybdenum having , lower carbon content “L” quality austenitic stainless-steel that gives enhanced rust resistance over 304L and also 316L stainless steel steels . The lower carbon offers protection to sensitization while in welding along with other heat processes. 317L is non-magnetic in the annealed condition however could become slightly magnet due to welding.

317L possesses outstanding corrosion resilience in a wide range of chemical substances, specifically in acidic chloride conditions for example those experienced in pulp and paper mills. Higher levels of chromium, nickel and molybdenum when compared with 316L stainless-steel enhance resistance to chloride pitting and also common corrosion. Resilience increases with molybdenum metal content. 317L is resistant against sulfuric acid concentration approximately 5 % at temperature up to 120°F (49°C). At temperature under 100°F (38°C) this alloy has outstanding resistance to solutions of high concentration. However, services tests are suggested to account for the affects of particular operating situations that could have an effect on corrosion behaviour. In processes in which condensation of sulfur-bearing gas takes place, 317L is a lot more resistant against attack at the point of condensation compared to common alloy 316.

Standards

SummaryStandards
Standard Specification for Seamless Ferritic and Austenitic Alloy-Steel Boiler, Superheater, and Heat-Exchanger TubesASTM A 213
Standard Specification for Welded Austenitic Steel Boiler, Superheater, Heat-Exchanger, and Condenser TubesASTM A 249
Standard Specification for Seamless and Welded Austenitic Stainless Steel Tubing for General ServiceASTM A 269
Standard Specification for Seamless, Welded, and Heavily Cold Worked Austenitic Stainless Steel PipesASTM A 312
Standard Specification for Electric-Fusion-Welded Austenitic Chromium-Nickel Stainless Steel Pipe for High-Temperature Service and General ApplicationsASTM A 358
Standard Specification for Welded Large Diameter Austenitic Steel Pipe for Corrosive or High-Temperature ServiceASTM A 409

Mechanical Properties

Tensile Strength : Unit – ksi (MPa) , Minimum
Yeild Strength : 0.2 % Offset , Unit – ksi (MPa) , Minimum
Elongation : in 2?, Unit : % , MinimumValues as per ASTM A 213

Condition & GradeTensile StrengthYeild StrengthElognationHardness
Annealed SS 31775 (515) 30 (205)3490 HRB max
Annealed SS 317L75 (515) 30 (205)3590 HRB max

Paper& Pulp Industry

Welded Pipe

Pipes

Stocking & Supplying Seamless & Welded Pipes as small as 1/4″ NB and 6″ NB. Thickness ranging from Sch 10 to Sch 80.

Tube / Tubing

Tubes / Tubing

Stocking & Supplying Seamless & Welded Tubes / Tubing from 6mm OD to 101.6mm OD. Thickness ranging from 0.8mm to 6mm.