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About Us

Our Vision is to be the leading source for weld test materials and destructive test equipment by serving our customers with unprecedented quality and customer service.
Our Mission is to provide the welding industry with materials, equipment, training and qualification quickly, accurately, and economically.

The Foundation of Our Company was built on welding knowledge earned through decades of hands-on application.

Founded In
1960

Bob & Alec Coulstring combined their talents and experience, and founded TEI in 1960. It started as a machine shop doing industrial repair work such as machining hard faced valve spools, pump shafts, and conveyor screws.

TEI continued to grow, and took on larger projects for clients such Paragon Park on Hull's Nantasket Beach, Woods Hole Oceanographic Institute, Ocean Spray Cranberries, NASA, and the U.S. Air Force.

To reduce the time and cost to qualify welders, TEI designed, patented, and manufactured destructive test equipment to expedite the removal and bending of weld test specimens.

The need for readily available materials for welder qualification testing inspired TEI to establish standard weld coupons sizes in pipe and plate, and begin to produce and stock them regularly.

In its third generation of family ownership, TEI continues to remain an industry leader whether it's in the manufacture of weld coupons for qualification and procedure test materials, or engineering and consulting services.

We take pride in retaining loyal customers, and gaining new customers through referrals. And we never get tired of telling our customers that a "hard to find" material is in stock, and that we will ship it out to them that day.