Historical Version s - view previous versions of standard. More A This practice covers the qualification of procedures, welders, and operators for the fabrication and repair of steel castings by electric arc welding. The materials are categorized as carbon steel, carbon and carbon-manganese steel, low alloy steel, ferritic stainless steel, martensitic stainless steel, low carbon austenitic stainless steel, unstabilized austenitic stainless steel, austenitic stainless steel, duplex austenitic-ferritic stainless steel, precipitation-hardened austenitic stainless steel, nickel base alloy, steel castings, austenitic manganese.
The orientation of the welds with respect to the horizontal and vertical planes of reference is classified into four positions, namely, flat, horizontal, vertical, and overhead. Four types of test shall be conducted in the qualification procedures such as tension test, bend test, Charpy impact test and radiographic test. Guided bend test specimens shall be prepared by cutting the test plate or pipe to form specimens of approximately rectangular cross section. Guided bend test specimens are of three types depending on which surface -side bend, face bend, or root bend is on the convex outer side of the bent specimen.
Specification for welding procedure and performance qualification for thermoplastics
A welding procedure must be set up as a new procedure and must be requalified when any of the changes in essential variables, inclusive, are made. Changes other than those listed may be made without requalification, provided the procedure is revised to show these changes.
All welders and operators welding castings under this practice shall pass the welder qualification test. Many of the project site activity starts with such welding qualification for the project to kick start.
Components of a Standard Welding Procedure Specification (SWPS)
From a plant construction green field or brown field or maintenance prospective as well such qualifications are necessary. Its shall be interesting to note they are also required for different material of construction like Carbon Steel, Stainless Steel, Alloy steel, Nickel, Aluminium Titanium, Tantalum, Zirconium and so on.
In the industry skilled qualified welders are on demand and many stake holders are looking for a Third Party Inspection Agency TPIA to establish qualifications for their welding processes and welders. TUV India helps its customers in establishing such qualifications for the different welding processes and welder qualifications. Complaints Client Testimonials.
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