Nominal wall thickness (mm): 2.0, 2.5, 2.8, 3.2, 3.5, 3.8, 4.0, 4.5.
Coefficient parameters (c): 1.064, 1.051, 1.045, 1.040, 1.036, 1.034, 1.032, 1.028.
Note: The mechanical properties of steel are important indicators to ensure the ultimate performance (mechanical properties) of steel, which depend on the chemical composition and heat treatment system of the steel. In steel pipe standards, according to different usage requirements, tensile properties (tensile strength, yield strength or yield point, elongation), hardness, toughness indicators, as well as user requirements for high and low temperature performance are specified.
Steel grade: Q215A; Q215B; Q235A; Q235B.
Test pressure value/Mpa: D10.2-168.3mm is 3Mpa; D177.8-323.9mm is 5Mpa
