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(UNS S31703) A chromium-nickel austenitic stainless steel. The L signifies that it tis a low-carbon (0.03% max) modification of standard 317 stainless steel. The lower carbon improves the welding properties of the material. Has good corrosion resistance and high tensile and creep strength at elevated temperatures. 317L can not be hardened by heat treatment, can be hardened by cold working only.


Element C Mn P S Si Cr Ni Mo N
317L 0.030% 2.00% max 0.045% 0.030% 0.75% max 18.00-20.00% 11.00-15.00% 3.00-4.00% 0.10%

Physical Constants

Density0.290 lbs/in3
Density8.03 g/cm3


Forging2100-2200ºF Finish forging 1700-1750ºF
Annealing1900-2150ºF then water quench

Viking Forging Parameters

Rings24" O.D. X 6" long500 lbs.
Sleeves16" O.D. X 12" long500 lbs.
Disks26" Dia. X 6.5" long500 lbs.
Round Bar12" Dia. X 96" long2600 lbs.
Square/Rectangular Bar12" Square max X 96" long2600 lbs.
Blocks14" X 14" X 14"750 lbs.
Shafts12" Dia. max. X 96" long 2600 lbs.

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