Table of Contents
What is a stra test?
STRA stands for short transverse reduction in area test. This is a tensile test for material that checks for ductility in the throughthickness (short transverse) direction. The greater the ductility, the less chance there is of lamellar tearing occurring.
What is the most commonly used method of weld inspection?
Radiographic and ultrasonic weld inspection are the two most common methods of NDT used to detect discontinuities within the internal structure of welds. The obvious advantage of both methods is their ability to help establish the weld’s internal integrity without destroying the welded component.
What is the purpose of a transverse tensile test?
Transverse tensile test is performed on the test specimen, which is extracted in the transverse direction or across the sample of item such as plate or pipe. This test is performed to measure transverse tensile strength, yield strength, proof stress, elongation and reduction of area.
Which type of inspection is carried out in weld testing?
Radiographic and Ultrasonic Weld Inspection – Methods known as Non Destructive Testing (NDT) and used typically to examine the internal structure of the weld in order to establish the weld’s integrity without destroying the welded component.
Which NDT method is associated with Burmah Castrol strips?
Burmah Castrol Strips are a simple and effective tool, that provides you with assurance that you are performing an effective magnetic particle test. Their proper use proves that you have: Adequate field strength and direction.
What is hot cracking in welding?
Hot cracking (also known as solidification cracking) is the formation process of shrinkage cracks during the solidification period of a weld metal.
What is inspection in welding?
Welding inspection typically consists of a series of quality control checks carried out by welding inspectors. It ensures welded joints meet required levels of quality and are fit for purpose. Inspection is the application of methods of examination to ensure that quality is controlled to an acceptable level.
What are the common welding tests?
5 Types of Tests for Welder Performance Qualification
- Visual Inspection (VT)
- Bend Test (face, root, side)
- Macroetch Test.
- Fillet Weld Break Test.
- Radiographic Test (RT) – can be done in lieu of bend tests.
Where do we use tensile test in welding?
Tensile test is performed on welded test specimen as part of the weld procedure (WPS / WPQR) qualification, welder qualification, weld performance qualification and Production weld qualification. Generally, a transverse tensile test is performed where the weld metal is oriented transverse in the centre of the specimen.
What is impact testing materials?
Impact test determines the amount of energy absorbed by a material during fracture. This absorbed energy is a measure of a given material’s toughness and acts as a tool to study temperature-dependent brittle-ductile transition.
What are the steps in visual inspection?
Generally, here are 5 simple steps to effectively perform visual inspections:
- Step #1 Clearly define defect criteria.
- Step #2 Standardize inspection performance.
- Step #3 Analyze visual defects.
- Step #4 Communicate improvement measures.
- Step #5 Use mobile-ready checklists.
- Explicitly define defect criteria.
What is the difference between inspection and testing?
Product testing, often known as lab testing, typically involves testing a product against a specific standard or regulation in a certified laboratory. Whereas product inspection often involves checking a random sample of an order for compliance with a buyer’s requirements and specifications.