ASTM B834-13
压力固结粉末冶金铁镍 - 铬钼(UNS N08367)和镍 - 铬 - 钼 - 铌(Nb)(UNS N06625)合金管法兰 配件 阀门和部件的标准规范
Standard Specification for Pressure Consolidated Powder Metallurgy Iron-Nickel-Chromium-Molybdenum (UNS N08367) and Nickel-Chromium-Molybdenum-Columbium (Nb) (UNS N06625) Alloy Pipe Flanges, Fittings,