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ASTM B834-22
Standard Specification for Pressure Consolidated Powder Nickel Alloy Pipe Flanges, Fittings, Valves, and Parts
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NORM herausgegeben am 1.4.2022
Informationen über die Norm:
Bezeichnung normen: ASTM B834-22
Ausgabedatum normen: 1.4.2022
SKU: NS-1053501
Zahl der Seiten: 5
Gewicht ca.: 15 g (0.03 Pfund)
Land: Amerikanische technische Norm
Kategorie: Technische Normen ASTM
Kategorie - ähnliche Normen:
Die Annotation des Normtextes ASTM B834-22 :
This specification tackles standards for pressure consolidated powder metallurgy iron-nickel-chromium-molybdenum and nickel-chromium-molybdenum-columbium pipe flanges, fittings, valves, and parts intended for general corrosion or heat-resisting service. Compacts shall be manufactured by placing a single powder blend into a can, evacuating the can, and sealing it. The can material shall then be selected to ensure that it has no deleterious effect on the final product. The specimen shall be heated and placed under sufficient pressure for a sufficient period of time to ensure that the final consolidated part is fully dense. The powder shall be produced by vacuum melting followed by gas atomization. The heats shall be thoroughly mixed to ensure homogeneity when powder from more than one heat is used to make a blend. The material shall have the chemical compositions of carbon, manganese, silicon, phosphorus, sulfur, chromium, molybdenum, nickel, iron, cobalt, columbium, aluminum, titanium, nitrogen, and copper. Hydrostatic test shall be conducted and the specimen must show no leaks. The density test shall be performed using sample suspended from a scale and weighed in air and water using Archimede’s principle. Check Analysis shall be wholly the responsibility of the purchaser. The parts of the specimen shall be uniform in quality and condition, and shall be free from injurious imperfections.
Keywords:
compact, nickel alloy, powder parts, pressure consolidated powder metallurgy, UNS N06600, UNS N06625, UNS N06690, UNS N07718, UNS N08367,, ICS Number Code 23.040.15 (Non-ferrous metal pipes)
Ergänzende Informationen
| 1. Scope | ||||||||||||||
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1.1?This specification covers pressure consolidated powder metallurgy nickel alloy pipe flanges, fittings, valves, and parts intended for general corrosion or heat-resisting service. 1.1.1?UNS N06625 products are furnished in two grades of different heat-treated conditions: 1.1.1.1?Grade 1 (annealed)Material is normally employed in service temperatures up to 1100 ?F (593 ?C). 1.1.1.2?Grade 2 (solution annealed)Material is normally employed in service temperatures above 1100 ?F (593 ?C) when resistance to creep and rupture is required. 1.2?UNS N08367 products are furnished in the solution annealed condition. 1.3?UNS N06600 products are furnished in the annealed condition. 1.4?UNS N06690 products are furnished in the annealed condition. 1.5?UNS N07718 products are furnished in the solution annealed + precipitation hardened condition. 1.6?The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard. 1.7?The following safety hazards caveat pertains only to test methods portions, Sections 7.3 and 13, of this specification: This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to become familiar with all hazards including those identified in the appropriate Safety Data Sheet (SDS) for this product/material as provided by the manufacturer, to establish appropriate safety, health, and environmental practices, and to determine the applicability of regulatory limitations prior to use. 1.8?This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. |
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