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SAE 8620
EQUIVALENT / AKA
AISI 8620 | EN362 (BS 970 legacy) | 20NiCrMo2-2 (EN 10084) | 1.6523 (Werkstoff) | SNCM220 (JIS) | 805M20 (BS 970) | Nickel-chrome-moly carburising steel
SAE 8620 is a general purpose low alloy carburising steel containing small additions of nickel, chromium and molybdenum. It is one of the most widely used case hardening grades because it offers a good balance of core strength, toughness and machinability at moderate cost. After carburising and hardening it gives a case hardness of roughly 58-62 HRC with a tough core of about 30-40 HRC, and it responds well to carbonitriding. It is readily machined and cold formed in the annealed condition and has good weldability for a low alloy steel. Steel type: case hardening (carburising) low alloy steel.
CHEMICAL PROPERTIES
Typical composition ranges for EN353. Values are indicative and subject to the governing standard, product form and mill test certificate.
APPLICATION
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Gears, pinions and gear blanks
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Transmission and drive shafts
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Camshafts and crankshafts (carburised)
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Bushings, pins, sleeves and collars
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Sprockets, chain links and rollers
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Hydraulic pump and valve components
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Tooling fixtures, jigs and die blocks
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General automotive and machinery parts requiring a hard case and tough core
WEIGHT CALCULATOR
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