ASTM B834-2017 压力固结粉末冶金铁-镍-铬-钼(UNS N08367)和镍-铬-钼-钶(Nb)(UNS N06625)合金管法兰、配件、阀和部件规格 tandard Specification for Pressure Consolidated Powder Metallurgy Iron-Nickel-Chromium-Molybdenum (UNS N08367),Nickel-Chromium-Molybdenum-Columbium (Nb) (UNS N06625),Nickel-

1.1 This specification covers pressure consolidated powder metallurgy iron-nickel-chromium-molybdenum (UNS N08367) and nickel-chromium-molybdenumcolumbium (Nb) (UNS N06625), nickel-chromium-iron alloys (UNS N06600 and N06690), and nickel-chromium-iron-columbium (Nb)-molybdenum (UNS N07718) 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 Thi