Universal Cobalt Alloy No. 21
Universal No. 21 applications include: high temperature valves, high pressure valves, hot punches crushing knives, drop forging dies, tap hole augurs, pump shafts and sleeves, press dies, vapor tight valve seats.
This alloy has the best impact resistance of the cobalt based alloys. Alloy 21 work hardens in service, has excellent erosion, corrosion and metal to metal wear resistance. Deposits exhibit effective hardness and a good cutting edge at high temperatures. On thick overlays Alloy 21 can be used as a buildup prior to depositing a higher hardness alloy.
General Properties
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Technical Datasheet (English)
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Where To Buy
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