2023年2月9日 · 内容提示： Designation: A420/A420M − 22Standard Specif i cation forPiping Fittings of Wrought Carbon Steel and Alloy Steel forLow-Temperature Service 1This standard is issued under the f i xed designation A420/A420M; the number immediately following the designation indicates the yearof original adoption or, in …

Designation: A420/A420M −19aA420/A420M 20 Standard Specification for Piping Fittings of Wrought Carbon Steel and Alloy Steel for Low-Temperature Service1 This standard is issued under the fixed designation A420/A420M; the number immediately following the designation indicates the year

ASTM A420 is the standard specification for pipe fittings of carbon steel and alloy steel used for low temperature services. WPL6 is the most used grade material under A420. Besides Grade WPL6, the standard also includes WPL9, WPL3, WPL8, impact test temperature correspondingly at -45℃, -75℃, -100℃, -195℃.

2024年5月15日 · Standard Specification for Piping Fittings of Wrought Carbon Steel and Alloy Steel for Low-Temperature Service. This specification covers wrought carbon steel and alloy steel pipe fittings of seamless and welded construction for use in pressure piping and pressure vessel service at low temperatures.

2024年5月23日 · 型号：a420/a420m − 24该国际标准是根据世界贸易组织技术性贸易壁垒（tbt）委员会《关于制定国际标准、指南和建议的原则的决定》所确定的国际公认的标准化原则制定的。

ASTM A420 is the standard specification for pipe fittings of wrought carbon steel and alloy steel for low temperature service. These fitting, either of seamless or welded construction, are primarily used in pressure piping and pressure vessel service at low temperatures.

ASTM A420 / ASME SA420 SPECIFICATION FOR PIPING FITTINGS OF WROUGHT CARBON STEEL AND ALLOY STEEL FOR LOWTEMPERATURE SERVICE This specification covers wrought carbon steel and alloy steel fittings of seamless and welded construction, covered by the latest revision of ASME B16.9, ASME B16.11, MSS-SP-79, and MSS SP-95.

ASTM A420标准规定了低温碳素钢管件（管弯、弯头、三通、法兰等）的化学成分、机械性能（拉伸强度、屈服强度、冲击韧性等）、试验方法、检验规范和标志等内容。 在低温环境下工作的管道系统对材料的性能要求较高，ASTM A420标准要求管件的材料必须具有良好的低温韧性和抗蠕变性能，以确保系统的安全可靠运行。 随着我国液化天然气（LNG）工程、液化石油气（LPG）工程、海洋石油评台建设等领域的发展，对低温碳素钢管件材料的需求不断增加。 ASTM A420标准 …

astm a420/a420m-22 November 1, 2022 Standard Specification for Piping Fittings of Wrought Carbon Steel and Alloy Steel for Low-Temperature Service

2024年10月17日 · a420代表的是一种美国品牌的钢材，其材质与国内的2Cr13材质相当，属于马氏体不锈钢。 在焊接时，a420通常需要预热，其标准编号为美标中的A420WL6。 在低温环境下进行无缝焊接管件时，a420会达到-45度的最低温度要求，对应的管材是A333 Gr.6，有时会用16Mn管 …