1 Scope
This national standard specifies the requirements, test method, procedure, result assessment, quality grade, record and report of ultrasonic test for forged and rolled steel bars.
This standard is applicable to the forged and rolled steel bars whose diameter (thickness), 12mm ~ 200mm is tested with ultrasonic (longitudinal wave or transverse wave) impulse reflection method (contact method or immersion method); while this standard may also the reference for the test of other forged and rolled bars.
This standard is not applicable to austenite scorched steel bars.
2 Normative references
The following standard contains provisions which, through reference in the following text, constitute provisions of this standard. For dated reference, subsequent amendments (excluding correction) to, or revisions of, any of these publications do not apply. However, parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below. For undated references, the latest edition of the normative document referred to applies. For undated references, the latest edition of the normative document referred to applies.
