Principles for selecting welding joint coefficients
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When designing pressure vessels, what are the principles for selecting the welding joint coefficient? During the design process, should the welding joint coefficient be determined based on the proportion of non-destructive testing, or should the proportion of non-destructive testing be determined based on the welding joint coefficient? Experts, please provide some guidance
Determine the weld joint coefficient based on the non-destructive testing ratio
You can take a look at the definition of the welding joint coefficient :)
Welding is also a great field of study
This post was last edited by Take a look_knkRj on 2025-5-29 10:17. I determine the detection ratio based on information such as the medium, temperature, pressure, and equipment size. Then, the welding coefficient for calculation is determined. If the detection ratio doesn’t matter based on that information, then I’ll look at the material. For expensive materials, I will prioritize a welding coefficient of 1.0, and then determine the corresponding inspection ratio.
Determine the weld joint coefficient based on the non-destructive testing ratio.
According to the requirement 5.5.2.1 of GB/T150.1-2024, the welding joint coefficient φ shall be determined based on the weld configuration of the butt joint and the length proportion for non-destructive testing.