FINNED TUBE
Metallic inclusions in copper tubing can be caused by two major sources. The first comes from the material itself which can contain residual impurities from continuous casting. The second, and major source of metallic inclusions in finned copper tubes, occurs during the manufacturing process. Inclusions that are the results of the manufacturing process can appear in the tube when the tool used to make the fins is breaking.
FERRITIC INCLUSIONS IN NON-FERRITIC TUBE, BAR AND WIRE
Inclusions are small particles or linear ferrite residuals that are usually considered to be undesirable. They may be spherical or elongated. They may originate from two major sources.
ECHOMAC® ULTRASONIC SYSTEMS FOR ERW TESTING
Magnetic Analysis Corp.’s line of Echomac® systems for testing ERW tube during production now includes Phased Array ultrasonic models as well as conventional ultrasonic systems.
ECCENTRICITY INSPECTION
Eccentricity, where the OD and ID of a tube are not concentric, is a problem that is most often created during extrusion of the tube from billet. Eccentricity in the finished product can mean wall thicknesses that don’t meet specifications, causing problems during further processing downstream. The Echomac® FD, 4 Channel is an ultrasonic equipment used for detecting eccentricity.
DETECTING SIGMA PHASE
Sigma Phase is a brittle, nonmagnetic phase of tetragonal structure occurring in many transition metal alloys. It is frequently encountered in high chromium stainless steels. The test consists of a two channel MultiMac® eddy current tester. One channel is used for the detection of typical defects, while the other absolute channel is used for finding Sigma Phase.
MAC® Is Celebrating Its 95th Anniversary
Operating on an international scale, MAC assists metal manufacturers the world over in meeting demands and specifications that require multiple technologies. With the support of our subsidiaries and field engineering network, the company is proud to serve customers throughout the Americas, Europe, Scandinavia, Eastern Europe, India, Korea, China and Australia.
William S. Gould, 3rd in Memoriam
Bill Gould succeeded his father as President of Magnetic Analysis Corp. (MAC) in 1964 and remained in that role until 2007, a remarkable 42 year run in which he successfully built MAC from a small, U.S. oriented eddy current testing company into a global leader in eddy current, ultrasonic and flux leakage equipment and services. Bill remained Chairman until his death and was honored as a fifty year member of the American Society for Nondestructive Testing in 2016.
For Immediate Release March 1, 2022
Magnetic Analysis Corporation, (MAC®) a designer and producer of nondestructive test instruments and systems since 1928, is pleased to announce the asset acquisition of TacTic™, a Division of Laboratory Testing Inc. (LTI), effective February 28, 2022.