AWS D18.1 Specification for Welding of Austenitic Stainless Steel Tube and Pipe Systems in Sanitary (Hygienic) Applications

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AWS D18.1 Document Information:

Title
Specification for Welding of Austenitic Stainless Steel Tube and Pipe Systems in Sanitary (Hygienic) Applications

American Welding Society

Publication Date:
Jan 1, 1999

Scope:

This specification covers the requirements for gas tungsten arc welding (GTAW) of austenitic stainless steel tube and pipe 1/4 in. (6 mm) diameter and larger in the fabrication and construction of new sanitary (hygienic) processing systems. Sanitary processing systems are intended to include those systems handling products for human and animal consumption. Such products include dairy, meat, poultry, vegetable, beverage, and other products consumed by humans and animals. This specification addresses welding qualification and visual examination requirements prior to postweld conditioning.

This specification is intended for new construction, however the requirements may also be applied to maintenance of food processing equipment. This specification does not address requirements designed to prevent corrosion damage during service.

This specification does not address the health and safety of manufacturer or contractor personnel performing the fabrication or construction of food processing equipment. Users should refer to federal, state, and local regulations as well as other safety standards such as ANSI/ASC Z49.1, Safety in Welding, Cutting, and Allied Processes.

Keywords:

stainless steel tubing

Visual examination acceptance criteria

food processing equipment

sanitary application

qualification

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