ASTM B153-1991(2003) 铜及铜合金管和管件膨胀(扩口试验)的标准试验方法

标准号：ASTM B153-1991(2003)
中文标准名称：铜及铜合金管和管件膨胀(扩口试验)的标准试验方法
英文标准名称：Standard Test Method for Expansion (Pin Test) of Copper and Copper-Alloy Pipe and Tubing
发布日期：1999/12/31 12:00:00
实施日期：1999/12/31 12:00:00
国际标准分类号：23.040.15 (Non-ferrous metal pipes)
适用范围：Note 18212;For tubes of sizes greater than 4 in. in outside diameter, the following flattening test, as described in the various pipe and tube specifications, is recommended as a substitute for the pin expansion test. For pipe and tubes over 4 in. in outside diameter in the annealed condition, a 4-in. long shall be cut from the end of one of the tubes. This 4-in. long sample shall be flattened so that a gage set at three times the wall thickness will pass over the pipe freely throughout the flattened part. The pipe or tube so tested shall develop no cracks or flaws visible to the unaided eye as a result of this test. In making the flattening test, the elements shall be slowly flattened by one stroke of the press.