المعايير
Welding
Weld quality levels, structural welding codes, procedure and welder qualification, process numbers and weld symbols.
ISO 5817 Welding – Fusion-welded joints in steel – Quality levels for imperfections
Defines three quality levels – B (stringent), C (intermediate) and D (moderate) – with limits for each type of weld imperfection such as cracks, porosity, undercut and m…
AWS D1.1 Structural Welding Code – Steel
The North American code for welding structural carbon and low-alloy steel: design of welded connections, prequalified and qualified procedures, welder qualification, fab…
AS/NZS 1554.1 Structural steel welding – Welding of steel structures
The main Australian / New Zealand welding standard for steel structures, with two weld categories: GP (general purpose) and SP (structural purpose).
ISO 9606-1 Qualification testing of welders – Fusion welding – Part 1: Steels
Defines how welders are tested and certified for a process, product type, material group, consumable, thickness, diameter and welding position – and how the qualificatio…
ISO 15614-1 Specification and qualification of welding procedures – Welding procedure test – Part 1: Arc and gas welding of steels
Defines how a welding procedure is qualified by testing a test piece; the result is a WPQR that supports one or more WPS within its range of qualification.
ISO 4063 Welding and allied processes – Nomenclature of processes and reference numbers
Gives every welding process a reference number – 111 manual metal arc, 121 submerged arc, 135 MAG, 136 flux-cored, 141 TIG – used on WPS, drawings and certificates.
ISO 2553 Welding and allied processes – Symbolic representation on drawings – Welded joints
Defines the weld symbols on drawings: reference line, arrow, symbol for the weld type, dimensions (a or z), length, all-round and site-weld marks.
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