Requirements regarding weld width
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Requirements regarding weld width: 1. NB/T 47015-2011 \"Welding Code for Pressure Vessels\", 4.7.2 d) Technical requirements for welding repairs: 4) The maximum width of the weld bead shall be 4 times the diameter of the welding core. 2. RCC-M 2007 Volume IV Part S 2.1. S7400 Execution of welds on products; S7314 General requirements: For load-bearing welds, narrow bead welding is recommended (the swing range of the electrode should not exceed three times the diameter of the electrode core). 3. Other relevant points: European standards for high-end products in the field of offshore engineering impose restrictions, such as EEMUA 158, which specifies a requirement of 4 times the diameter of the wire core ； AWS D1.1 Chapter 3, the chapter exempt from evaluation – limit on weld width for FCAW: 16 mm ； European standard BS EN 1101-2: When performing manual metal arc welding with swaying, the amplitude of swaying shall not exceed 3 times the diameter of the electrode core. 4. ASME BPVC SEC.Ⅰ-2017, PW-40.3.4: The width of the weld bead produced by any electrode shall not exceed 4 times the diameter of that electrode.
This is the required weld bead! Note: A weld bead is formed with each layer of material applied. It’s not the width of the weld. .
Weld seams and weld beads are actually easily confused.
Various standards have different requirements for weld width, which is usually related to the diameter of the welding material used. For example: 1. NB/T 47015-2011, the Welding Code for Pressure Vessels, specifies that the maximum width of the weld bead shall be 4 times the diameter of the welding electrode core. 2. Volume IV of RCC-M 2007 recommends that the load-bearing welds be welded using narrow beads, with the swing range of the electrode not exceeding three times the diameter of the electrode core. 3. Other standards such as EEMUA 158 and ASME BPVC SEC.Ⅰ-2017 also specify that the weld bead width shall not exceed 4 times the diameter of the welding electrode core. AWS D1.1 imposes a specific limit on the FCAW weld width, which must not exceed 16 mm. BS EN 1101-2 specifies that, for manual metal arc welding with swaying, the swaying amplitude shall not exceed 3 times the diameter of the electrode core. In summary, the specific requirements for weld width depend on the particular specifications and standards of the application. During welding operations, relevant standards should be followed to determine the appropriate weld width. .
There are no specific requirements regarding weld width; what you listed are the requirements for welding techniques
The most straightforward indicator for checking weld width should be by how much it is wider than the groove width?