NACE TM0177-2024

The primary purpose of this standard is to facilitate conformity in testing so that data from different sources can be compared on a common basis. Consequently, this standard aids the evaluation and selection of all types of metals and alloys, regardless of their form or application, for service in H2S containing environments. This standard contains methods for testing metals using uniaxial tensile, three-point bent-beam, C-ring, and double-cantilever-beam (DCB) test specimens. A separate standard, NACE TM0316,3 contains a method for testing metals using four-point bend test specimens.

This test method may be used for many purposes, and the applications of the test results are beyond the scope of this standard. Those who use the test method should be aware that, in some cases, the test results can be influenced by variations in properties among different locations in a single length of pipe, individual plate, or weld, as well as by variations within a heat of steel. When the test method is used as a basis for purchasing, the number and location of the test specimens must be carefully considered. This standard is intended for end users, manufacturers, fabricators, and testing laboratories.