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Galvalume and galvanized steel roofing cannot be fully evaluated by visual or low-magnification analysis to determine the extent of damage to a roof after a hailstorm.  Hailstone damage must be evaluated using scientific laboratory equipment, such as stereomicroscopy, scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), optical emission spectroscopy (OES), and on occasion, Fourier Transform Infrared […]

An eyewitness to the start of the Grenfell Tower fire in London indicated the “fridge exploded.” Yes, refrigerators can explode. In Europe, it has been reported that 90% of apartment refrigerators are ammonia and hydrogen working fluid refrigerators. Information on failures and causes of ammonia and hydrogen refrigerator fires and explosions can be found on our website […]

As stated in our newsletter we will be covering different aspects, factors, and results of fatigue over the next several weeks. Fatigue is a very common failure mode for metal. Although there are plenty of other modes for metal failure, fatigue can be commonly found in items that are used on a regular basis. For […]

J.E.I. Metallurgical, Inc. was called by a client who had purchased a cast iron skillet from a well-known cooking program. The client was excited to use her new skillet, placed it on the stove and lit the burner. Shortly thereafter, a “loud explosion” occurred and the handle rocketed past her head, barely missing her cheek.  This frightening […]

It is not uncommon for metallurgical engineers to be asked to participate in fire investigations; not necessarily at the fire scene, but after evidence is collected from the scene to assist fire investigators in determining the cause of the fire. Metallurgical engineers contribute to fire cases and investigations by specifically looking at metal components like arc beads, melted […]

Get a Handle On Your Cooking. A large cooking pot, purchased from a well-known store, was being used in its recommended fashion. During a routine lifting of the pot, one of the handles failed and gave way, dumping scalding water onto the cook. A photograph of the subject and an identical exemplar pot can be seen […]

  Welding defected in electric resistance welds used to fabricate steel pipe have been alleged. ERW defects have been alleged to have caused pipe leakage and failure in air conditioning condenser pipe in several commercial buildings. JEI metallurgical has been requested to conduct an engineering evaluation of several of these failures.             A view of […]

Owners in a newly constructed condominium experienced brown discolored or rusty looking water when drawing water out of a faucet.  J.E.I. Metallurgical was retained to investigate the metallurgical cause of the discolored water.  Piping was removed from the facility for examination.  An overall view of the galvanized hot water pipe is shown in the photograph […]

During completion of an oil well, the casing string became stuck and unmovable. A dangerous and improper procedure was attempted in order to loosen and free the casing string. Power to the rotating string was reversed and the pipe was slowly turned three, one-quarter reverse turns. Unfortunately, the 1170° of reverse rotation still did not […]

The warm months are starting and we can finally get back to working outdoors in pleasantly beautiful spring-time weather. Many workers will cut some corners to try and make up for lost time over this seemingly endless winter. Cutting corners can cause injury and other costly damages. So this spring pay special attention to the […]

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J.E.I. Metallurgical, Inc.

5514 Harbor Town
Dallas, Texas 75287

Phone: (972) 934-0493
Fax: (469) 737-3938

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