About King
KING Tester Corporation is the industry leader in the manufacturing and distribution of portable Brinell hardness testers and most recently Rockwell testers. Our customers include some of the largest names in aerospace, rail, auto, foundries, steel and aluminum mills, calibration labs, oil and gas, heat treaters, wear parts, military, infrastructure, construction and utilities.
We are committed to quality.
KING Tester received the ISO 17025 accreditation from the American Association for Laboratory Accreditation (A2LA). All King Tester products are certified and calibrated per ASTM E10 standards.
All KING Portable Brinell Testers are made in the USA!
KING Tester Corporation was founded in 1936 by Andrew King to satisfy the need for a portable full load Brinell tester. For over 80 years, we have manufactured high quality and ruggedly designed portable Brinell Testers and related equipment. Our customers range from the largest multinationals to small, privately owned, metal processors.
Mission Statement
Our mission is to continue our founder Andrew King’s vision by serving all of our customers with the highest standards of product quality and reliability, while maintaining excellent customer service.
Our Customers
What Customers Say
We use our King portable testers on a daily basis in 100 degree heat and freezing cold temperatures at many different angles, even upside down, and the quality and reliability is unmatched.
Antonio Fernandez, Weatherford International
I find it amazing that a device originally designed and patented in 1936 is still the mainstay of hardness testing for most shops. Not many products that are in existence in this day and age like that. True testimony of what a well thought out product it is.
John Rodney, Southwest Heat Treat
I really appreciated the tremendous customer service.
Bill Arenburg, CarlisleIT
It’s the best Brinell tester on the market.
Ken Atwood, Northland Forge Ltd.
KingScope 100 works great.
Tanvir Seehra, Champ Machine and Welding Ltd.