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Forging Materials

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(UNS S30403) 304L is a low carbon version of 304 stainless steel. The low carbon minimizes problems of carbide precipitation during welding. Can only be hardened by cold working.


Element C Mn P S Si Cr Ni
304L 0.030% max 2.0% max 0.045% max 0.030% max 1.00% max 18.00%-20.00% 8.00%-12.00%

Physical Constants

Density0.285 lbs./in3
Density7.90 g/cm3


Forging2100-2300ºF maximum 1700ºF minimum
Annealing1850ºF-2050ºF then water quench

Viking Forging Parameters

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

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