904L Pipe Fittings & Flanges

SS 317 is a molybdenum-bearing austenitic alloy that comes with the greater resistance to the chemical attacks in comparison to the general chromium-nickel alloys like SS 304 and SS 316L. Besides, 317 also provides greater strength level at raised temperatures i.e. higher creep, stress-to-rupture, and tensile strength.
Alloy 317L is an austenitic stainless steel with low carbon content that gives better corrosion resistance in comparison to 304L and 316L alloys. Due to less percentage of carbon, SS 317L is immune to sensitization experienced during welding and other thermal procedures.
In the annealed environment, alloy 317L can be non-magnetic, however the magnetic characteristics could return with welding.
Applications of 317L stainless steel
• Used for desulfurization
• Chemical procedures
• Petrochemical
• Used to make paper and pulp
• Used in condensers for power generation
• Pharmaceutical plants
• Food processing plants
Characteristics of 317L stainless steel
• Increased level of normal and restricted corrosion as compared to 316L
• Satisfactory formability
• Good for welding procedures

Standards

SummaryStandards
Standard Specification for Wrought Austenitic Stainless Steel Piping FittingsASTM A 403
Standard Specification for Forged or Rolled Alloy and Stainless Steel Pipe Flanges, Forged Fittings, and Valves and Parts for High-Temperature ServiceASTM A 182

Mechanical Properties – Pipe Fittings

Tensile Strength : Unit – ksi (MPa) , Minimum
Yeild Strength : 0.2 % Offset , Unit – ksi (MPa) , Minimum
Elongation : in 2?, Unit : % , MinimumValues as per ASTM B 403

Condition & GradeTensile StrengthYeild StrengthElognation LongitudinalElognation Transverse
Annealed Tp 317 / 317L75 (515)30 (205)2820

Mechanical Properties – Flanges

Tensile Strength : Unit – ksi (MPa) , Minimum
Yeild Strength : 0.2 % Offset , Unit – ksi (MPa) , Minimum
Elongation : in 2?, Unit : % , Minimum
Reduction of Area : Unit : % , MinimumValues as per ASTM B 182

Condition & GradeTensile StrengthYeild StrengthElognationReduction Of Area
Annealed Tp 31775 (515)30 (205)3050
Annealed Tp 317L70 (485)25 (170)3050

Textile Industry

Elbow / Bends

Elbow / Bends

Long Radius / Short Radius

45˚ , 90˚ & 180˚

Fitting-Flanges-Reducer

Reducers

Concentric

Eccentric

Fitting-Flanges-cap

Caps

Fitting-Flanges-Stubend

Stub Ends

Long

Short

Flanges-sorf-wnrf

Flanges

SORF

WNRF

Blind

Lap Joint

Fitting-Flanges-fasteners

Fasteners

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