ASTM B829 is a standard specification for general requirements for nickel and nickel alloys seamless pipe and tube. It covers the dimensions, tolerances, and marking requirements for seamless pipes and tubes made from nickel and nickel alloys. The standard covers a wide range of nickel alloys, including nickel-copper alloys, nickel-chromium-molybdenum-columbium alloys, nickel-molybdenum alloys, and nickel-chromium-iron alloys. It also specifies the heat treatment requirements, hydrostatic testing, and nondestructive testing procedures for the pipes and tubes. ASTM B829 is commonly used in the chemical, petrochemical, and power generation industries for high-temperature and high-pressure applications.