Yamamoto Rockwell Hardness Test Blocks Calibrated & Certified (YAMAMOTO-ROCKWELL-TEST-BLOCK)

    Yamamoto Rockwell Hardness Test Blocks Calibrated & Certified
    Starting at:

    $198.00 1. Quote Required

    IN STOCK

    Volume Pricing:
    Quantity Price Each
    1-4 $198.00
    5-9 $188.10
    10+ $178.20
    • Product Code:
      YAMAMOTO-ROCKWELL-TEST-BLOCK
    • Tech Support Available
    • Product Weight: 1.00

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    Description

    Yamamoto Rockwell hardness test blocks are the highest quality test blocks available and have become the industry-leading standard for hardness reference. 

    These Yamamoto Rockwell test blocks based, on their materials, manufacturing method, shape, dimensions, surface roughness, and usable range conform to JIS B7730 and ISO 6508-3 standards.  The nominal hardness variance for the test blocks is ± 1 HRC

    Each test block is durable enough to allow approximately 260 test points per block.* 

    These test blocks are designed to match materials that you will measure in the field or in laboratory settings. All test blocks are supplied with a certificate of calibration.

    For HRC 30 and HRC 64 these test blocks are in-stock. For all others there is a 3-4 week lead time.

    To maximize the useful life of your Yamamoto Rockwell test block, Berg recommends making indentations evenly over the test surface. Sectioning the test surface into five sections as shown below is a way to ensure maximum utilization and accuracy of test block readings.



    *If higher accuracy is required, we recommend limiting the number to test points to half that number.

    Specs

    Classification Nominal Hardness Value Specifications
    Rockwell A HRA 87, 85, 83, 81, 78, 75, 71, 65, 56 (± 1) JIS B 7730 (ferrous) Ø64 x 15 mm
    Rockwell B HRB W 100, 95, 90
    HRB W 82, 72
    HRB W 62, 52, 42, 32 (± 2)
    JIS B 7730 (ferrous) Ø64 x 10 mm
    JIS B 7730 (ferrous) Ø64 x 15 mm
    JIS B 7730 (nonferrous) Ø64 x 10 mm
    Rockwell B
    (HRB Dual, HRB S+W)
    d-HRB 93 (± 2)
    d-HRB 90, 82, 72 ( ± 2)
    d-HRB 62, 32 (± 2)
    JIS B 7730 (ferrous) Ø64 x 10 mm
    JIS B 7730 (ferrous) Ø64 x 15 mm
    JIS B 7730 (nonferrous) Ø64 x 10 mm
    Rockwell C HRC 67, 64, 60, 50, 40, 30, 20, 10
    HRC 70, 62, 57, 55, 45, 35, 25 (± 1)
    JIS B 7730 (ferrous) Ø64 x 15 mm
    Rockwell Superficial N HR30N 83, 81, 78, 73, 67, 60, 55, 50, 41 (±1)
    HR15N 92, 90, 87, 85, 80, 75 (± 1)
    HR45N 43, 23 (± 1)
    JIS B 7730 (ferrous) Ø64 x 15 mm
    JIS B 7730 (ferrous) Ø64 x 15 mm
    JIS B 7730 (ferrous) Ø64 x 15 mm
    Rockwell Superficial T HR30T W 78, 72
    HR30T W 62, 52, 42, 38, 32 (± 2)
    HR15T W 87
    HR15T W 82, 78 ( ± 2)
    JIS B 7730 (ferrous) Ø64 x 15 mm
    JIS B 7730 (nonferrous) Ø64 x 10 mm
    JIS B 7730 (ferrous) Ø64 x 15 mm
    JIS B 7730 (nonferrous) Ø64 x 10 mm

    Package Includes