astm a120 standard gth according to the grade. Minimum yield strength often ranges from 30,000 psi (207 MPa) to 60,000 psi (414 MPa), depending on the grade. Bend Tests: Assesses ductility and weld quality by bending the pipe without cracking or splitting. Flattening Tests: Ensures the pipe can withstand Sep 18, 2025 Read more →