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Forging Materials

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4150 RS(Resulphurized) A medium carbon chromium-molybdenum alloy steel with modified chemistry for improved machinability and increased hardenability.


Element C Mn P S Si Cr Ni Mo
4150RS 0.47-0.55% 0.95-1.30% 0.025% max 0.60-0.10% 0.20-0.35% 0.60-0.90% 0.25% max 0.15-0.25%

Physical Constants

Density0.284 lbs./in3
Density7.85 g/cm3


Annealing1650ºF furnace cool
Normalizing1650ºF air cool
Austenize1500ºF 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 X 96" long2600 lbs.
Blocks14" X 14" X 14"750 lbs.
Shafts12" Dia. max X 96" long2600 lbs.

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