AWS NAVSEA B2.1-1-312 pdf free download
AWS NAVSEA B2.1-1-312 pdf free download.Standard Welding Procedure Specification for Naval Applications (SWPS-N) for Shielded Metal Arc Welding of Carbon Steel (5-1), 1/8 inch [3 mm] through 1-1/2 inch [38 mm] Thick, MIL-7018-M, in the As-Welded or PWHT Condition, Primarily Pipe for Naval Applications.
The fabrication document(s) should specify the engineering requirements such as design, need for postweld heat treatment, fabricating tolerances, quality control, and examination and tests applicable to the end product.
User’s Responsibility. A SWPS-N does not replace or substitute for fabrication codes, specifications, contract requirements, or capability and judgment on the part of the user. A SWPS-N 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 the user supplementing the SWPS-N 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 SWPS-N to a specific application, a user may issue supplementary instwctions. 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 SWPS-N.
Nomenclature Caution. The base material S numbers appearing in this standard are base material groupings used for qualification purposes in NAVSEA Technical Publication S9074-AQ-GIB-O1O/248, just as M numbers in AWS B2.1/B2.1M and P numbers in the ASME Pressure Vessel Code are material groupings. The S numbers in this standard are different from and not to be confused with the S number nomenclature that has been used in the ASME Pressure Vessel Code. The P number joint designations and P piping classifications in this standard have no association with the ASME P number material groupings. The “A” number suffix letter filler metal grouping in this standard is that included in NAVSEA Technical Publication S9074-AQ-GIB-O1O/248 and should not be confused with the A number weld metal groupings included in AWS B2.1/B2.1M or in ASME Boiler and Pressure Vessel Code, Section IX, Welding, Brazing, and Fusing Qualifications.
Standard Units of Measure. This standard makes use of both U.S. Customary Units and the International
System of Units (SI). 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 independently.
Safety. Safety and health issues and concerns are beyond the scope of this standard and therefore are not addressed herein. Safety and health information is available from the following sources:
American Welding Society:
(1) ANSI Z49.1, Safety in Welding, Cutting, and Allied Processes
(2) AWS Safety and Health Fact Sheets
(3) Other safety and health information on the AWS website Material or Equipment Manufacturers:
(1) Safety Data Sheets supplied by materials manufacturers
(2) Operating Manuals supplied by equipment manufacturers Applicable Regulatory Agencies
Work performed in accordance with this standard may involve the use of materials that have been deemed hazardous, and may involve operations or equipment that may cause injury or death. This standard does not purport to address all safety and health risks that may be encountered. The user of this standard should establish an appropriate safety program to address such risks as well as to meet applicable regulatory requirements. ANSI Z49.1 should be considered when developing the safety program.AWS NAVSEA B2.1-1-312 pdf download.
