non destructive test ndt

understanding Non Destructive Test (NDT) used in Oil and Gas industry

Definition of NDT The purpose of NDT activity is to detect defects/discontinuity (above the surface, beneath the surface, and in a material), to measure the geometry of the objects, and to determine the chemical composition of materials. Non Destructive Test (NDT) is an analysis technique that is carried out to evaluate a material without damaging the function of the test object. Some types of NDT include: Ultrasonic Test (UT), Radiography, Penetrant Test, Magnetic Particle Test, etc. Here is an example of NDT: Radiography Test Magnetic Particle Inspection Dye Penetrant Test Ultrasonic Flaw Detector Vacuum Test Holiday Detector Non Destructive Test[…]

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arc welding basics

understanding arc welding basics and type of arc welding

Arc Welding Welding can be defined as “the operation that produces coalescence of two or more members by applying heats or pressure or both, with or without the use of filler metal” . Welding (Metallurgical joining) can further be classified by the joining mechanism into 4 groups : Fusion welding ( can be referred to as welding in the narrow sense), solid phase joining (pressure welding), diffusion welding and joining by liquid-solid phase reaction (Brazing & soldering). Fusion welding consist of 5 categories : gas welding, arc welding, electroslag welding , thermite welding and high energy beam welding (electron beam[…]

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5g 6G welding position

1G, 2G, 3G, 4G, 5G, 6G, 1F, 2F, 3F, 4F pipe and plate welding position

What is the welding position? Welding Position is the type or position of the connection to be welded, this welding position is based on the material or product to be welded. In welding technology, all of them have coding based on the type of connection. For fillet connections, it is symbolized with positions 1F, 2F, 3F, and 4F, while for groove or bevel connections it is symbolized by 1G, 2G, 3G, and 4G. Fillet weld is a method for combining two parts of metal vertically or slightly at an angle. They are also known as T connections or Lap connections[…]

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Understanding your strength

Material strength Strength is the highest value of stress that a material can hold. If a material gets a stress above this limit, the material will break. How do we know the strength of the material? By doing laboratory testing, we can understand this value. And what is stress? technically, stress is the quantity of load divided by perpendicular area of material that receives the load. The higher the load, the higher the stress. The smaller of the area, the higher the stress value. How to reduce the stress of material to avoid a material break? simply increase the area[…]

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