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Forging Materials

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(UNS S42200) An Electro-Slag Remelt (ESR) chromium martensitic stainless steel. Has good high temperature properties up to 1200ºF and creep-rupture properties in the range of 600-1200ºF. Is hardenable by heat treating.


Element C Mn Si Cr Ni Mo
422ESR 0.23% 0.75% 0.35% 11.50% 0.80% 1.00%

Physical Constants

Density0.280 lbs/in3
Density7.75 g/cm3


Forging1950-2025ºF finish above 1550ºF
Annealing1600ºF slow cool
Tempering980-1200ºF for 2 hrs
Austenize1900ºF then oil 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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