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ASTM B639-25
Standard Specification for Precipitation Hardening Cobalt-Containing Alloys Rod, Bar, Forgings, and Forging Stock for High-Temperature Service
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STANDARD published on 15.4.2025
The information about the standard:
Designation standards: ASTM B639-25
Publication date standards: 15.4.2025
SKU: NS-1219089
The number of pages: 4
Approximate weight : 12 g (0.03 lbs)
Country: American technical standard
Category: Technical standards ASTM
The category - similar standards:
Annotation of standard text ASTM B639-25 :
This specification covers hot- and cold-worked precipitation hardenable cobalt-containing alloys (UNS R30155 and UNS R30816) rod, bar, forgings, and forging stock for high temperature service. The material shall conform to the required chemical composition for carbon, manganese, silicon, phosphorus, sulfur, chromium, nickel, molybdenum, columbium, tantalum, iron, cobalt, and nitrogen. The materials shall conform to the required tensile and hardness properties such namely tensile strength, yield strength, alongation and Brinell hardness. The alloys shall also conform to the required stress-rupture properties. Dimensions such as diameter, thickness, or width, out-of-round, corners, cut lengths, straightness for cold-worked and hot-worked rod and bar shall be measured.
Keywords:
bar, forgings, rod, R30155, R30816,, ICS Number Code 77.140.60 (Steel bars and rods),77.140.85 (Iron and steel forgings)
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