API Std 1104


Welding of Pipelines and Related Facilities

22nd Edition

Published by Publication Date Number of Pages
API 07/01/2021 174


API Std 1104 – Welding of Pipelines and Related Facilities, 22nd Edition

API 1104 covers the gas and arc welding of butt, fillet, and socket welds in carbon and low-alloy steel piping used in the compression, pumping, and transmission of crude petroleum, petroleum products, fuel gases, carbon dioxide, and nitrogen, and, where applicable, covers welding on distribution systems. It applies to both new construction and in-service welding. The welding may be done by a shielded metal-arc welding, submerged arc welding, gas tungsten-arc welding, gas metal-arc welding, flux-cored arc welding, plasma arc welding, oxyacetylene welding, or flash butt welding process, or by a combination of these processes using a manual, semiautomatic, mechanized, or automatic welding technique or a combination of these techniques. The welds may be produced by position or roll welding or by a combination of position and roll welding.

API 1104 also covers the procedures for radiographic, magnetic particle, liquid penetrant, and ultrasonic testing, as well as the acceptance standards to be applied to production welds tested to destruction or inspected by radiographic, magnetic particle, liquid penetrant, ultrasonic, and visual testing methods.
It is intended that all work performed in accordance with this standard shall meet or exceed the requirements of this standard.

Product Details

Number of Pages:
File Size:
1 file , 3.4 MB
Product Code(s):
D110422, D110422R, D110422, D110422R, D110422, D110422R
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