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AWS D10.18M/D10.18:2008


AWS D10.18M/D10.18:2008

Guide for Welding Ferritic / Austenitic Duplex Stainless Steel Piping and Tubing
Edition: 1st
American Welding Society / 23-Jan-2008 / 36 pages
ISBN: 9780871710888
The ferritic/austenitic duplex stainless steels (DSSs) discussed in this document have proven to be weldable using proper welding procedures. The processes GTAW,GMAW (includes all transfer modes), SMAW, FCAW,and SAW have all been used with success on these alloys. Automatic and mechanized welding such as orbital welding with the GTAW, GMAW, and FCAW processes have also been used with success on duplex alloys. Manual welders that have experience with austenitic stainless steels should be able to apply many of the techniques they have learned from these alloys to the welding of duplex stainless steels, while of course
keeping in mind the exceptions to be noted within this document.
This standard makes use of both the International System of Units (SI) and U.S. Customary Units. The latter are shown within brackets [ ] or in appropriate columns in tables and figures. The measurements may not be exact equivalents; therefore, each system must be used
To identify nominal pipe sizes in both SI and U.S.Customary Units, the following designations are used:
(1) DN (Diameter Nominal) is the SI designation, and
(2) NPS (Nominal Pipe Size) is the U.S. Customary designation.
Safety and health issues and concerns are beyond the scope of this standard, and therefore are not fully addressed herein. Safety and health information is available from other sources, including, but not limited to,ANSI Z49.1, Safety in Welding, Cutting, and Allied Processes, and applicable federal and state regulations.

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