Alloy 317L Technical Information
Robert-James Sales, Inc.
Robert-James Sales, Inc.
Technical Information
  Piping Definitions Tube Stainless Steel Alloys Specifications Conversion Calculators 

 
Alloys

Alloy 20
2205
Alloy C-276
317L
310S
321/321H
347/347H
254SMO
AL-6XN
6061 T6
904L
410
304/304L
316/316L
Alloy 200
Alloy 400
Alloy 600
Alloy 625
Alloy 800/800H/800HP
Alloy 825

317L

Chemical Composition %

C Cr Mn Mo Ni P S SI
Max   Max     Max Max Max
0.035 18.0-20.0 2.00 3.0-4.0 11.0-15.0 0.04 0.03 0.75

AVAILABILITY
Weld Pipe 1/2" - 12"
Seamless Pipe 1/2" - 8"
Butt-Weld Fittings 1/2" - 12"
Flanges 1/2" - 12"
Bar 1"- 8"


SPECIFICATIONS
ASTM
A312, A403, A182
ASME
SA312, SA403, SA182

DESCRIPTION
317L is a molybdenum bearing austenitic chromium nickel steel similar to type 316 except the alloy content in 317L is somewhat higher. It has superior corrosion resistance in special applications where it is desired to reduce contamination to a minimum. 317L was developed primarily to resist more effectively the attack of sulfurous acid compounds. However, its proven ability to combat corrosion has widened its use considerably and is now being used for many other industrial applications. The low carbon content of 317L provides immunity to intergranular corrosion in applications where heavy cross-sections cannot be annealed after welding or where low temperature stress relieving treatments are desired.

DESIGN FEATURES
• A molybdenum bearing austenitic chromium nickel steel with an alloy content somewhat higher than the 316 grades.
• Superior corrosion resistance in difficult
environments.
• Higher creep, stress-to-rupture and tensile
strengths than other stainless steels.
• Reduced intergranular precipitation of chromium carbides during welding and stress relieving as well as minimized possibility of corrosion failure from intergranular attack due to low carbon content.
• Resistance to pitting and crevice corrosion making 317L a successful life-cost product in a variety of highly corrosive environments.

TYPICAL APPLICATIONS
Flue gas desulfurization scrubber systems
Chemical and petro-chemical processing equipment
Pulp and paper plants
Food processing equipment
Textile equipment

TENSILE REQUIREMENTS
Tensile Strength (KSI) 75
Yield Strength (KSI) 30

KSI can be converted to MPA (Megapascals) by multiplying by 6.895.

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Robert-James Sales, Inc.
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