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Hardness Test- types
Rockwell Superficial Hardness Test: The Rockwell Superficial Hardness Tester is used to test thin materials, lightly carburized steel surfaces, or parts that might bend or crush under the conditions of the regular test. This tester uses the same indenters as the standard Rockwell tester but…
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Weld symbols location
1.1. Location of the Weld with Respect to Joint: a.Arrow Side. Welds on the arrow side of the joint are shown by placing the weld symbols on the side of the reference line toward the reader.
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WELDING SYMBOLS
Elements of Welding Symbols: The first concepts the Welding Inspector must understand very well, are the welding symbols and how to interpret them on drawings. The reference line of the welding symbol, as shown below, is used to designate the type of weld to be…
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Hardness Testing
Hardness Testing: Hardness is the resistance of a material to localized deformation. The term can apply to deformation from indentation, scratching, cutting or bending. In metals, ceramics and most polymers, the deformation considered is plastic deformation of the surface. For elastomers and some polymers, hardness is…
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Welding of Stainless Steels
Welding of Stainless Steels: General Concepts: Stainless steels, resumed here in a general way, are defined as steel alloys, where the chromium content ranges from 10.5% to 30%. There are five distinct types of stainless steel:
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NDT – Few Other Methods
Here are some rarely used NDT – Few Other Methods 1. Eddy Current Testing – ET: Eddy-current inspection uses electromagnetic induction to detect flaws in conductive materials. A circular coil carrying current is placed in proximity to the test specimen (electrically conductive). The alternating current in…
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Recommendations for Welding
We would see about Recommendations for Welding of Structural Steel as per AWS D1.1 , 2020 revision Groove Weld: (Clause 4.4.1) Weld Length : shall be the width of the parts joined , perpendicular to the direction of compressive or tensile stress, Weld Size: Thickness of thinner…
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STANDARD SPECIFICATIONS FOR WELDING PROCEDURES
The sole purpose of welding procedures is to describe the details that are to be followed in the welding of specific materials or type of joint. The following is a list of standard specifications for welding procedures that are normally covered in welding procedures…
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