{"id":19800,"date":"2025-05-14T09:10:39","date_gmt":"2025-05-14T07:10:39","guid":{"rendered":"https:\/\/seaberyat.com\/?p=19800"},"modified":"2025-05-14T09:10:39","modified_gmt":"2025-05-14T07:10:39","slug":"welding-procedure-specification-wps","status":"publish","type":"post","link":"https:\/\/seaberyat.com\/en\/welding-procedure-specification-wps\/","title":{"rendered":"Welding Procedure Specification (WPS): Common Examples and Their Role in Industrial Welding"},"content":{"rendered":"

[vc_row][vc_column][vc_column_text css=””]In the evolving landscape of industrial welding, ensuring consistency, safety, and quality is paramount. Central to achieving these objectives is the Welding Procedure Specification (WPS), a foundational document that delineates the parameters and methods for executing welds.<\/span><\/span><\/span><\/span>[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column][vc_column_text css=””]<\/p>\n

What is a Welding Procedure Specification (WPS)?<\/strong><\/span><\/span><\/h2>\n

[\/vc_column_text][vc_column_text css=””]<\/p>\n

A WPS<\/a> <\/span>is a formal document that provides detailed guidelines to welders and welding operators for producing welds that meet specific code requirements<\/strong>. It encompasses essential variables such as base materials, welding processes, filler materials, joint design, preheat and post-weld heat treatment, welding positions, shielding gases, and electrical characteristics.<\/span><\/span><\/p>\n

[\/vc_column_text][vc_column_text css=””]<\/p>\n

The primary goal of a WPS is to ensure that welds are performed consistently and safely across various projects and operators.<\/span><\/span><\/p>\n

[\/vc_column_text][\/vc_column][\/vc_row][vc_row content_placement=”middle”][vc_column width=”1\/2″][vc_column_text css=””]<\/p>\n\n\n\n\n\n\n\n\n\n\n
\n

Key elements of a WPS<\/strong><\/span><\/p>\n<\/td>\n<\/tr>\n

\n

Base material types<\/span><\/p>\n<\/td>\n<\/tr>\n

\n

Welding process (SMAW, GTAW, GMAW)<\/span><\/p>\n<\/td>\n<\/tr>\n

\n

Type of filler metal<\/span><\/p>\n<\/td>\n<\/tr>\n

\n

Joint design and geometry<\/span><\/p>\n<\/td>\n<\/tr>\n

\n

Preheat and interpass temperature<\/span><\/p>\n<\/td>\n<\/tr>\n

\n

Welding position (flat, horizontal, vertical, overhead)<\/span><\/p>\n<\/td>\n<\/tr>\n

\n

Electrical parameters (voltage, current, travel speed)<\/span><\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

[\/vc_column_text][\/vc_column][vc_column width=”1\/2″][vc_single_image image=”19917″ img_size=”large” alignment=”center” style=”vc_box_rounded” css=””][\/vc_column][\/vc_row][vc_row content_placement=”middle”][vc_column][vc_column_text css=””]<\/p>\n

Types of WPS<\/strong><\/span><\/span><\/h3>\n

[\/vc_column_text][vc_column_text css=””]<\/p>\n

WPSs can be categorized based on their development and application:<\/strong><\/span><\/span><\/p>\n

[\/vc_column_text][vc_column_text css=””]<\/p>\n

Prequalified WPS<\/strong>: Developed based on established welding codes and standards without the need for additional testing. These are typically used for routine welding tasks where proven procedures exist (Example: AWS D1.1).<\/span><\/span><\/p>\n

[\/vc_column_text][vc_column_text css=””]<\/p>\n

Qualified WPS<\/strong>: Requires testing and validation through Procedure Qualification Records (PQRs) to ensure the welding procedure meets the necessary quality standards. This involves creating test welds and subjecting them to rigorous inspections.<\/span><\/span><\/p>\n

[\/vc_column_text][vc_column_text css=””]<\/p>\n

Standard WPS<\/strong>: Generic procedures developed by industry organizations that can be adapted for multiple projects or industries. They serve as references for developing project-specific WPSs.<\/span><\/span><\/p>\n

[\/vc_column_text][\/vc_column][\/vc_row][vc_row content_placement=”middle”][vc_column][vc_column_text css=””]<\/p>\n

Common WPS Examples in Industrial Welding<\/strong><\/span><\/span><\/h2>\n

[\/vc_column_text][vc_column_text css=””]<\/p>\n

The National Certified Pipe Welding Bureau (NCPWB)<\/a><\/span> provides a comprehensive list of WPS examples tailored for various materials and welding processes. Here are some notable examples that illustrate the diversity of WPSs.<\/span><\/span><\/p>\n

[\/vc_column_text][vc_column_text css=””]<\/p>\n\n\n\n\n\n\n\n\n
<\/td>\n\n

Description<\/strong><\/span><\/p>\n<\/td>\n

\n

Applications<\/strong><\/span><\/p>\n<\/td>\n<\/tr>\n

WPS 1-1-1<\/strong><\/span><\/td>\nShielded Metal Arc Welding (SMAW) using E6010 electrode with uphill progression without post-weld heat treatment (PWHT).<\/span><\/td>\nThis is often used in structural welding and pipeline construction.<\/span><\/td>\n<\/tr>\n
WPS 1-3-1<\/strong><\/span><\/td>\nGas Tungsten Arc Welding (GTAW) using ER70S-2 filler metal without PWHT.<\/span><\/td>\nPrecise welds on thinner materials requiring higher weld quality.<\/span><\/td>\n<\/tr>\n
WPS 1-5-1<\/strong><\/span><\/td>\nGas Metal Arc Welding (GMAW) Short Circuiting Transfer using ER70S-6 filler metal with CO\u2082 shielding gas without PWHT.<\/span><\/td>\nUsed for light structural components and automotive manufacturing.<\/span><\/td>\n<\/tr>\n
WPS 4-2-1<\/strong><\/span><\/td>\nSMAW using E8018-B2 electrode with PWHT, suitable for Cr-Mo steels.<\/span><\/td>\nUsed in high-temperature service conditions like boiler tubes or pressure vessels.<\/span><\/td>\n<\/tr>\n
WPS 8-3-1<\/strong><\/span><\/td>\nGTAW of thin-wall pipe without consumable insert.<\/span><\/td>\nCommon in sanitary or high-purity piping systems.<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

[\/vc_column_text][\/vc_column][\/vc_row][vc_row content_placement=”middle”][vc_column][vc_column_text css=””]<\/p>\n

Importance of WPS in industrial applications<\/strong><\/span><\/span><\/h2>\n

[\/vc_column_text][vc_column_text css=””]<\/p>\n

Implementing WPSs in industrial settings offers numerous benefits:<\/span><\/span><\/p>\n

[\/vc_column_text][\/vc_column][\/vc_row][vc_row content_placement=”middle”][vc_column width=”1\/2″][vc_single_image image=”16859″ img_size=”large” alignment=”center” style=”vc_box_rounded” onclick=”custom_link” css=”” link=”https:\/\/seaberyat.com\/en\/most-common-welding-defects\/”][\/vc_column][vc_column width=”1\/2″][vc_column_text css=””]<\/p>\n