Welding standards
11 March 2022


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Weld defects

Failure investigation often uncovers facts that lead to changes in design, manufacturing, or operating practice, which will eliminate similar failures in the future. Failures of insignificant parts can also lead to advances in knowledge and should be done objectively, as with a large structure. The…
welding inspector
28 February 2022


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Welding Inspector certification

Levels of Certification AWS 1:2003 There are three levels of qualifications for welding inspector personnel. These levels are: AWI – Associate Welding Inspector; WI – Welding Inspector; SWI – Senior Welding Inspector. 1.1)      Associate Welding…
welding equipment
15 February 2022


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WELDING EQUIPMENT

Most field welding machines are portable, that is, they are on a truck and can be moved around. The welding equipment is usually a generator driven by a gasoline-powered engine and puts a DC current that may be reversed by changing the leads. The welding…
2 February 2022


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Welding Procedure for Overlay Weld or Cladding

This document covers the procedure to prepare a WPS – Welding Procedure Specification & PQR – Procedure Qualification Record for Overlay weld, Corrosion Resistant Overlay and Wear Resistant Overlay  both. The procedure refers international standard ASME BPVC Section IX, ( American Society of Mechanical Engineers,…
Arc welding process
13 January 2022


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WELDING PROCESSES

The welding processes are not the scope of this manual, specific for welding inspections. However, only for refreshing, the most common arc welding processes used in heavy and medium carbon  and alloy steel manufacturing are: SMAW: Shielded Metal Arc Welding – stick welding electrode; GMAW: Gas…
welding
8 January 2022


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Fillet Weld Sizes as per AWS D1.1 & AWS D1.2

Fillet Weld Sizes as per AWS D1.1 & AWS D1.2 This blog here answers your questions about: What is the tolerance for Fillet weld sizes as per AWS D1.1 ? What is the weld size tolerance? What is the required fillet weld size for structures…
fillet welds
24 December 2021


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Fillet Weld Types

Fillet Weld Types: The single-fillet-welded T-joints are indicated from both the arrow side and the other side. The symbol for a double fillet-welded T-joint is also Note that the assembly of two T-joints welded pieces involves four fillet welds represented by two double-fillet-weld symbols.
standards for welding
18 December 2021


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Standards and Specifications for welding

WELDING INSPECTOR KNOWLEDGES: The Welding Inspector must be a high skilled technician or engineer with a good knowledge of general industry manufacture, materials, quality systems, inspection procedures and Standards and Specifications for welding as:   Standard organizations as ASTM, SAE, AISI, AWS, ASME and other institutions; …
welding procedure
10 December 2021


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WELDING ELECTRODES AND PREHEAT REQUIREMENTS

The procedure requirements for welding electrodes and preheating temperatures are as follows: Welding must be done with the same process (SMAW or FCAW) used for qualification If the operator has qualified on any of the steel permitted (ASTM A36 and A588), that same operator…
mechanical testing
3 December 2021


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Mechanical Properties

The mechanical properties of a material are those properties that involve a reaction to an applied load. The mechanical properties of metals determine the range of usefulness of a material and establish the service life that can be expected. Mechanical properties are also used to…