This standard specifies the test method for determining the bending plastic deformation capacity of metal pipes with circular cross-section through the whole section. This standard applies to metal pipes with an outer diameter not exceeding 65mm. The outer diameter range of metal pipes to which this standard applies can be specified in more detail in relevant product standards.
GB/T 244-2008 history
2020GB/T 244-2020 Metallic material—Tube—Bend test method