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HARDNESS AND MICRO-HARDNESS TESTING

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Hardness And Micro-hardness Testing

QAI CAN ACCURATELY MEASURE THE HARDNESS OF ANY SAMPLE – REGARDLESS OF GEOMETRY.

At QAI, we conduct both hardness and micro-hardness testing to applicable testing standards and scales on a daily basis. Utilizing an array of machines, anvils, fixtures, and instruments, along with proven test methods and proprietary techniques, our technicians are well-equipped to examine and accurately measure the hardness of all types of metal, metal alloys, and metal components – regardless of the sample geometry. Difficult hardness testing assignments are no problem for our expert staff.

QAI’S HARDNESS TESTING METHODS INCLUDE:

  • Direct Rockwell
  • Superficial Rockwell
  • Brinell Hardness
  • Vickers Microhardness
  • Knoop Microhardness
  • Portable Hardness
  • File Hardness
  • Macro Vickers Hardness
  • Micro-hardness to 3,000 grams

DIRECT HARDNESS: QAI is well versed in all Rockwell Scales and conversions. We have five hardness testers capable of measuring various scales with all sorts of anvils and fixturing capabilities. Unlike many other labs, we are actually able to secure and accurately measure even samples with challenging geometries. In most cases, WITHOUT DESTRUCTION to extract a cross section which can be placed flat. We regularly hardness test samples that are spherical, round, have an unusual shape, and/or are especially long, heavy, or have uneven weight distribution.

In addition to the most popular direct and superficial Rockwell scales (A, B, C, T, N), some of the Rockwell scales we have calibrated our machines to and conduct regularly include R, L, M and K scales.

MICRO-HARDNESS TESTING: We have cutting edge technology for micro-hardness testing and may be the leading independent lab in the Midwest with two fully-automatic systems capable of performing all sorts of routines and mapping procedures, and the ability to perform simultaneous testing on up to eight samples at the same time. With these systems, our technology is simply unmatched and also enables us to determine effective case depth on case hardened components, heat affected zone hardness on welded components, hard and soft spots on difficult to machine components, and various other procedures. Our micro-hardness testers are also capable of capturing vivid color photomicrograph images at a relatively fast rate and then, stitching them together to provide a full, seamless view of the entire specimen.

With precise, state-of-the-art technology and the ability to test multiple samples and projects simultaneously, QAI is well positioned to deliver high quality reports with speed and efficiency. This allows us to be more responsive and more price sensitive than many other labs. Please inquire about our heat treat testing program.

Highlights

SPECIFIC TESTS AND/OR PROPERTIES MEASURED

METALS AND METALLIC COMPONENTS

TEST METHODS

Direct Hardness:
• Rockwell – HRA, HRBW, HRC, HREW, HRRW, HRMW, HR15N, HR30N, HR45N, HR15T, HR30T, HR45T
• Brinell (500 kgf to 3,000 kgf)

Micro-hardness:
• Vickers
• Knoop
• Leeb

APPLICABLE STANDARDS

ASTM E18, E10, E384, A956

KEY EQUIPMENT OR TECHNOLOGY

• Digital Automatic Testers
• Automatic Microhardness Testers with Mapping

DOWNLOAD OUR ``CHEAT SHEET``

Minimum Test Sample Sizes (PDF)

ROCKWELL C CONVERSION

Hardness Conversion Chart (PDF)

For more information about our services please contact us at:

📞 USA 888.540.4024     📞 CANADA 877.461.8378

📧 info@qai.org
 

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Founded in 1995 by a group of experienced certification and testing experts, QAI is an independent third-party testing, inspection and certification organization which serves the building industry, government and individuals with cost effective solutions through our global, in-house capabilities / services.

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Latest News

  • Join QAI’s Impartiality Committee!

    Be the Voice of Impartiality – Join QAI’s Impartiality Committee!  Are you

    19 December, 2024
  • 2023 Alberta Edition of the National Building Code

    Dear Valued Client, Subject: Announcing the publication of the 2023 Alberta Edition

    5 April, 2024
  • QAI LABORATORIES (QAI) AND ATRONA TEST LABS (ATL) JOIN FORCES TO EXPAND TESTING CAPABILITY

    QAI Laboratories is pleased to announce the acquisition of ATRONA Test Labs,

    18 March, 2024

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