1G 2G 5G 6G pipe welding positions

1G, 2G, 5G, 6G pipe welding position

what are the 4 pipe welding positions? In the construction phase of a project in the oil and gas industry, we often find welding activities on pipes or welding on tanks. To maintain the quality of welding, professional organizations (ASME, AWS, ISO, JWES) make rules and classification of welding positions. All welder involved in construction needs to be certified according to these positions. In general, the pipe welding position is divided into 2 types, namely the welding position on the groove joint and the welding position on the fillet joint. Mostly welding connections on pipes use groove joints type so we often hear the term pipe welding position. The pipe welding position is divided into 4 groups, namely 1G, 2G, 5G and 6G. 1G pipe welding position this is the easiest welding position. 1G welding position is a position where the pipe is in a horizontal position and the pipe[…]

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welding inspector job and responsiblity

responsibility of welding inspector in Oil and Gas Project

welding inspector jobs In construction work at Oil and gas company, we often install equipment tanks, pressure vessels, and pipeline or piping. the work that we often find is welding. workers involved in welding are welding coordinators, welding engineers, welding supervisors, welding inspectors, welder, and NDT inspector. a welding inspector is responsible for ensuring or maintaining the quality of welds or Quality Control (QC) of a welding product in accordance with specified standards such as ASME, AWS, API or JWES. The task of welding inspectors in the field is not limited to inspections, but they also sometimes have the task of making welding maps, making reports, carrying out NDT tests such as Test Tests, UT and MT (if they have the ability or certificate in accordance with the test). Some companies want a welding inspector to function as an NDT inspector to improve efficiency and competitiveness. If you are interested[…]

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lrut gwt guided wave technology

API 1104 Welding recommendation for pipeline

Welding Code and standard There are 2 Welding code or standard that widely used in Oil and Gas facilities. ASME Boiler and Pressure Vessel Code (BPVC) section 9 provide welding requirement and specification used for Boiler, Pressure Vessel, Process Piping, Power Piping and other facilities. This section 9 is very famous and well known in engineering, welding and inspection community arround the world. API 1104 The second book is API 1104. This standard 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,[…]

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introduction to welding, soldering and brazing

  Welding is a process of joining a metal into one due to heat with or without pressure effect or it can also be defined as a metallurgical bond generated by the attraction force between atoms. Soldering and brazing is a process of grafting metal which is used other metal connector in a liquid state which then frozen. Soldering is the process of connecting two pieces of metal with different metals which are poured in a liquid state with a temperature not exceeding 430 o C between the two pieces. The most widely used alloy / filler metal alloys are lead and lead alloys having a liquid point between 180 – 370 °C. The composition of 50% Pb and 50% Sn is mostly used for solder tin where this alloy has a liquid point at 220 °C.   Brazing of the filler metal has a liquid point above 430 °C[…]

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