Category: Pipe Welding
This comprehensive, user-friendly manual was designed specifically for the mechanical service industry. Color illustrations highlight key points and enhance the reader’s ability to find information.
This publication helps educate technicians and customers about ASME Code requirements for the proper installation and fabrication of welded piping systems in accordance with Welding Procedure Specifications.
Find out why NCPWB recommends the ANSI/ASME B31.9 Building Services Piping Code for quality and economy in building services piping construction.
This document explains the many tools that the National Certified Pipe Welding Bureau provides to help its members reduce the cost and risk of welding and brazing.
This article presents guidance on what to do when dissimilar metals are used in heating and air conditioning piping systems. NCPWB is grateful to ASHRAE for allowing us to reproduce this article, which was published in ASHRAE Journal, Vol. 51, April 2009.
This document explains the concept of a bend test for welds and what factors, beside poor weld quality, can cause test specimen to fail.
The document provides instruction on how to weld P91 materials and what to avoid in order to ensure a sound weld.
The document provides links to a variety of sources that offer technical Information on welding.
The document provides a guideline on how to run straight stringer beads and how to set amperages using E7018, E8018 and E9018 series electrodes.
The document is a table of suggested filler metals for SMAW process used to weld various base materials.
The document helps readers develop an understanding of the types of defects found in weldments and how they appear in a radiograph.
This document provides tips for purging various materials and pipe sizes. It also covers techniques for making purge dams and blocks.
The Excel document calculates purge flow rates and provides examples.
This Excel file provides dimensional information for products such as fittings, pipes, angle, channel, bolts and more.
This document outlines factors to consider when selecting proper cup size for TIG welding and how to measure a cup size.
This document from the United Association provides tips to assist welders in preparing for and taking a weld test.
The document provides guidelines on the proper preparation, grinding and cutting of tungsten electrode. In addition to offering assistance in selecting the best tungsten composition for the job, it offers safety tips for grinding tungsten electrodes.