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(UNS S32100) A titanium stabilized, nickel chromium austenitic stainless steel. The addition of titanium provides improved intergranular-corrosion resistance. 321 stainless steel can only be hardened by cold working. Used in application of intermittent heating between 800ºF-1650ºF.


Element C Mn P S Si Cr Ni Ti
321 0.08% max 2.00% max 0.045% max 0.030% max 1.00% max 17.00-19.00% 9.00-12.00% 5 X C min

Physical Constants

Density0.284 lbs/in3
Density7.86 g/cm3


Forging2100-2300ºF finish above 1700ºF
Annealing1750-1950ºF 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" long2600 lbs.

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