Welding till the End!
Weight = Volume x Material DensityOD = Outside Diameter of PipeID = Inside Diameter of PipeID = OD – 2TT = Thickness of Pipe L=Length of Pipe Volume of Pipe = π⁄4 (OD²-ID²) x L Weight of Pipe = π⁄4 (OD²-ID² ) x L x Material Density
Elbow is the most commonly used fitting to change the angle or direction of the pipe run. Most commonly in 90 degrees and 45 degree turns. Knowing the approximate weight of the fittings helps us calculate the: Welding consumable cost for cladding Price calculation of item Freight charge of the items O.D= Outside Diameter of …
In this article we will discuss about the taper transition requirement for dissimilar thickness as per ASME Section VIII Division 1: What is Taper Transition? Transition is formed by removing the material by grinding or machining from the thicker material section to match it with the thinner section’s thickness. When Taper Transition required? Taper transition …
Taper Transition Requirement for Dissimilar Wall Thickness Read More »
This article is regarding the benefits of weld consumable calculation. Steps to calculate weld consumable & we will calculate weld consumable for single “V” groove joint. In welding, weld consumable estimation plays the vital role for complete the fabrication within time frame and at the possible minimum cost of weld metal as other cost of …
Weld Consumable Calculation for “Single V Groove joint” Read More »
Why Shielding Gases are required during welding: The process of welding is melting and solidifying of two metals together, during the process a molten weld pool is created which has to be protected from the atmospheric gases like oxygen and nitrogen otherwise contact of these gases with the weld pool may have adverse effects on …
To ensure the satisfactory performance of a component/structure, the component shall be tested with adequate testing procedure with the adequate testing method. Which in general specifies component can be used in the service requirement specified. Soundness to the purpose of component can be determined by either destructive or non-destructive testing of the component. But as …
ASME Boiler and pressure vessel code (BPVC) has assigned certain numbers to base metals to minimize the number of procedure and qualifications. Base metals are categorized as P No. is further divided in group numbers based essentially on comparable base metal characteristics, such as: Composition, Weldability Brazeablity Mechanical properties. Filler metals (electrodes) are categorized as …
P-Number, Group No, F-Number and A-Number in welding (ASME Section IX) Read More »
Preheating is the process involves heating the surrounding base metal near the joint to be welded, to a specific desired temperature prior to the welding or thermal cutting operation. Purpose of Preheat: 1) It raises the overall temperature of the material, which results in a slower cooling rate of the base materials, HAZ and the weld …
For fabrication of any equipment we require welders and welding operators must be qualified as per the qualification standard referred by the construction code. Whenever construction is as per ASME construction codes (like ASME B31.1, B31.3 or ASME section VIII) ASME section IX is used for the qualification of the procedure and welder. Welder is …
Welder Qualification (WPQ) as per ASME Section IX Read More »