Provtagning för mekanisk provning

This document specifies the ring hydraulic pressure test for metallic tubes. It is generally applied to tubes with an outside diameter greater than 120 mm and outside diameter to thickness ratio of not less than 20. The objective of this test is to ascertain the value of the hoop stress required to produce a specified total circumferential (hoop) strain.

This document is applicable to the determination of brittle crack arrest temperature(CAT) of rolled steel plates with thickness not greater than 200 mm. This standard specifies the requirements for test method and test procedures when using the isothermal crack arrest test to judge a valid test result under isothermal conditions and in order to determine the crack arrest temperature.