MDMT and Brittle Fracture
Brittle fracture at low temperatures can be a major problem with carbon steel and many alloys, if not properly considered in the design stage, and verified with testing. Steel is…
Category: ASME Code, TEMA and API Facts
Code Responsibility Groups
The Code assigns responsibilities to three different entities when it comes to pressure vessels. First is the fabricator, who has the main responsibility to ensure that all aspects of the…
2021 Code: Engineering Requirements
The 2021 edition of the code is now mandatory for all new orders as of January 1, 2022. Many updates and changes were made in this edition of the code.…
Non-Destructive Testing Methods: Radiographic testing (RT):
Radiographic testing (radiography) is used to detect discontinuities such as porosity, cracks and inclusions in materials or welds. It is performed by placing film or a digital detector on one side of…
Non-Destructive Testing Methods: Internal Rotary Inspection System (IRIS)
Similar to eddy current testing, this test method uses an internal probe to inspect heat exchangertubes. But unlike eddy current, ultrasonic inspection is the basis of the method. The IRIS…
Non-Destructive Testing Methods: Helium Leak Test
A helium leak test can be used to find through-wall leaks in pressure equipment and welds. A vessel or exchanger is first filled with 5-10 psi of helium and sealed.…
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