Issues with weld joint thickness?
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Page 331, clause 8.2.1 of GB150.4: The thickness of the welded joint shall be determined in accordance with the following provisions: b) For butt welds and fillet welds, it is the thickness of the weld itself； c) For combined welds that are butt welds and fillet welds, the thicker of the two thicknesses ； How should we understand points b) and c)?
It is recommended that the original poster take a look at GB/T30583-2014 \"Rules for Post-Weld Heat Treatment of Pressure Equipment\", as it provides a clear explanation. The attached figure is the content of Appendix A.
The performance of welded joints is the focus of manufacturing control!
This post was last edited by wanlirn on 2019-2-23 21:01. This standard is rarely used
a) For equal-thickness fully penetrated butt joints, it refers to the thickness of the steel; b) For butt welds, it refers to the thickness of the weld. How should one interpret these two values?
I understand it as the weld height being equal to the thickness of the welded joint; I’m not sure if that’s correct
Is it that the joint type and weld type aren’t distinguished? One can refer to GB/T3375-94 \"Welding Terms\" to make the distinction in form first; the rest should then be easy to understand. The thickness is taken according to the corresponding pattern form.
This is a rather technical question; feel free to discuss it
Take a look at GBT3375 welding terminology; once you understand the definitions of butt joints, butt welds, fillet welds, and weld thickness, there will be no contradictions.
According to this standard, a butt weld is essentially a butt joint
See GB/T3375 Figure 1, item No. 19