AWS B2.1-8-024 pdf free download

AWS B2.1-8-024 pdf free download.Standard Welding Procedure Specification (WPS) for Gas Tungsten Arc Welding of Austenitic Stainless Steel (M-8/P-8/S-8, Group 1), 1/16 through 1-1/2 inch Thick, ER3XX, As-Welded Condition, Primarily Plate and Structural Applications.
Scope. The data to support this Standard Welding Procedure Specification (WPS) have been derived from the above listed Procedure Qualification Records (PQRs) which were reviewed and validated under the auspices of the Welding Research Council. This Standard WPS is not valid using conditions and variables outside the ranges listed. The American Welding Society considers that this Standard WPS presents information for producing an acceptable weld using the conditions and variables listed. The user needs a significant knowledge of welding and accepts full responsibility for the performance of the weld and for providing the engineering capability, qualified personnel, and proper equipment to implement this Standard WPS.
Application. This Standard WPS is to be used only as permitted by the applicable fabrication document(s) [such as code, specification, or contract document(s)]. The fabrication document(s) should specify the engineering requirements such as design, need for heat treatment, fabricating tolerances, quality control, and examination and tests applicable to the end product.
User’s Responsibility. A Standard WPS does not replace or substitute for fabrication codes, specifications, contract requirements, or capability and judgment on the part of the user. A Standard WPS is to be used only as permitted by the applicable fabrication code, specification, or contract document.
The ability to produce production welds having properties suitable for the application depends upon supplementing the Standard WPS with appropriate performance qualification tests and sound engineering judgment. The user is responsible for the quality and performance of the final product in accordance with the provisions of the fabrication document(s).
Supplementary Instructions. To adapt this Standard WPS to a specific application, a user may issue supplementary instructions. Such instructions may consist of tighter fit-up tolerances, higher minimum preheat temperature or any other instructions necessary to produce a weldment that meets the requirements of the fabrication document(s). These instructions shall not be less restrictive than provided in the Standard WPS.
Safety. Safety precautions shall conform to the latest edition of ANSI Z49. 1, Safety in Welding, Cutting, and Allied Processes, published by the American Welding Society.
This specification may involve hazardous materials, operations, and equipment. The specification does not purport to address all of the safety problems associated with its use. It is the responsibility of the user to establish appropriate safety and health practices. The user should determine the applicability of any regulatory limitations prior to use.Welding Grade Argon or AWS A5.32 Class SG-A. Gas shall remain in place until the joint is completed for at least 3/16 in. of weld metal has been deposited. When introducing gas to initiate the purge, it is necessary to have at least a 6 volume change of atmosphere within the purge zone prior to welding. As an alternative, the oxygen content of the purge zone shall be 2% or less, as measured with an Oxygen Analyzer, prior to welding. It is not necessary to shield the root of fllet welds or groove welds with backing or backgouging. AWS B2.1-8-024  pdf download.