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SS 317 / 317L

Stainless Steel 317 (UNS S31700) is a molybdenum-bearing austenitic stainless steel with greatly increased resistance to chemical attack as compared to the conventional chromium-nickel austenitic stainless steel pipe such as SS 304 and SS 316L. In addition.SS 317 offers higher creep, stress-to-rupture, and tensile strength at elevated temperatures than conventional stainless steel tubing. SS 317L is a low carbon version of SS 317 grade which provides resistance to sensitization during welding and other thermal processes. Stainless Steel 317L is non-magnetic in the annealed condition but may become slightly magnetic as a result of welding.

Specifications

Stainless Steel SS 317 / 317L
AISI 317 / 317L
UNS S31700 / S31703
Werkstoff Nr. 1.4449 / 1.4438

Mechanical & Physical Properties

Density 8.0 g/cm3
Melting Point 1454 °C (2650 °F)
Tensile Strength Psi - 75000 ,MPa - 515
Yield Strength (0.2%Offset) Psi - 30000 ,MPa - 205
Elongation 35 %

Chemical Composition

SS 317 SS 317L
Ni 11 - 14 11 - 15
Cr 18 - 20 18 - 20
C 0.08 max 0.035 max
Mo 3 - 4 3 - 4
Fe Balance
Mn 2 max 2 max
Si 1 max 1 max
S 0.03 max 0.03 max
P 0.040 max 0.040 max

Application

Chemical Industry
Paper & Pulp Industry
Food Processing
Petrolium Industry
Pharmaceutical Industry
Power Generation

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