Standard Specification for Welded Nickel-Iron-Chromium Alloy Tubes
NORMA vydána dne 1.4.2022
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Designation standards: ASTM B515-22
Publication date standards: 1.4.2022
The number of pages: 3
Approximate weight : 9 g (0.02 lbs)
Country: American technical standard
Kategorie: Technické normy ASTM
This specification covers welded UNS N08120, UNS N08800, UNS N08810 and UNS N08811 alloy boiler, heat exchanger, and condenser tubes for general corrosion resisting and low or high-temperature service. Tube shall be made from flat-rolled alloy by an automatic welding process with no addition or filler metal, shall be cold-worked subsequent to welding and prior to final annealing, and shall be furnished with oxide removed. When bright annealing is used, descaling is not necessary. The material shall conform to the chemical composition limits prescribed for nickel, chromium, iron, manganese, carbon, copper, silicon, sulfur, aluminum, titanium, columbium, molybdenum, phosphorus, tungsten, cobalt, nitrogen, and boron, as determined by chemical analysis, and to the specified mechanical properties including tensile strength, yield strength, and elongation. Annealed alloys shall conform to the the prescribed grain size. The following tests shall be performed: (1) flattening test, (2) flange test, (3) Class 1 nondestructive test by one of the following: hydrostatic, pneumatic (air underwater), eddy current, or ultrasonic test, and (4) Class 2 nondestructive test by leak and electric (eddy current, or ultrasonic test) test.
Keywords:
UNS N08120, UNS N08800, UNS N08810, UNS N08811, welded tube,, ICS Number Code 23.040.15 (Non-ferrous metal pipes)