MASTER HARDNESS TEST BLOCKS

AFFRI provides high-precision master hardness test blocks for every hardness scale, including ILAC MRA certification by ANAB ISO/IEC 17025, to ensure daily and continuous accuracy on your hardness testers. They are available in all Rockwell, Brinell, Vickers, and Knoop scales. Choose AFFRI Inc. for precise, certified specimens that meet the highest standards.

CERTIFICATE NUMBER: AC-3026

MASTER HARDNESS TEST BLOCKS

AFFRI provides high-precision master hardness test blocks for every hardness scale, including ILAC MRA certification by ANAB ISO/IEC 17025, to ensure daily and continuous accuracy on your hardness testers. They are available in all Rockwell, Brinell, Vickers, and Knoop scales. Choose AFFRI Inc. for precise, certified specimens that meet the highest standards.

CERTIFICATE NUMBER: AC-3026

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Certified Precision Master Test Blocks for Hardness Instrument Calibration - ATI Laboratory Accredited ISO/IEC 17025

The AFFRI Inc. laboratory, accredited by ANAB ISO/EC 17025 n. AC 3026, offers certified precision specimens for the calibration of hardness instruments, ensuring compliance with international ASTM and ISO standards. Our specimens cover all hardness scales, including Rockwell, Brinell, Vickers, and Knoop, with a wide range of values to meet various calibration needs. Thanks to ILAC MRA accreditation, each specimen undergoes rigorous quality controls to ensure the highest accuracy and reliability in measurements. Choose AFFRI Inc. for certified, precise specimens that comply with the highest standards.

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Certified Precision Master Test Blocks for Hardness Instrument Calibration

ATI Laboratory Accredited ISO/IEC 17025

The AFFRI Inc. laboratory, accredited by ANAB ISO/EC 17025 n. AC 3026, offers certified precision specimens for the calibration of hardness instruments, ensuring compliance with international ASTM and ISO standards. Our specimens cover all hardness scales, including Rockwell, Brinell, Vickers, and Knoop, with a wide range of values to meet various calibration needs. Thanks to ILAC MRA accreditation, each specimen undergoes rigorous quality controls to ensure the highest accuracy and reliability in measurements. Choose AFFRI Inc. for certified, precise specimens that comply with the highest standards.

Rockwell

Hardness Scale Hardness Range Size mm with mirror surface Weight
HRA < 70 Ø 60X10 mm 0,35 kg
≥ 70 and < 80 Ø 60X10 mm 0,35 kg
≥ 80 Ø 60X10 mm 0,35 kg
HRB < 60 Ø 60X10 mm 0,35 kg
≥ 60 and < 88 Ø 60X10 mm 0,35 kg
≥ 88 Ø 60X10 mm 0,35 kg
HRC < 35 Ø 60X10 mm 0,35 kg
≥ 35 and < 60 Ø 60X10 mm 0,35 kg
≥ 35 and < 60 Ø 60X10 mm 0,35 kg
HRD < 51 Ø 60X10 mm 0,35 kg
≥ 51 and < 71 Ø 60X10 mm 0,35 kg
≥ 71 Ø 60X10 mm 0,35 kg
HRE < 84 Ø 60X10 mm 0,35 kg
≥ 84 and < 93 Ø 60X10 mm 0,35 kg
≥ 93 Ø 60X10 mm 0,35 kg
HRF < 80 Ø 60X10 mm 0,35 kg
≥ 80 and < 94 Ø 60X10 mm 0,35 kg
≥ 94 Ø 60X10 mm 0,35 kg
HR15N < 78 Ø 60X10 mm 0,35 kg
≥ 78 and < 90 Ø 60X10 mm 0,35 kg
≥ 90 Ø 60X10 mm 0,35 kg
HR30N < 55 Ø 60X10 mm 0,35 kg
≥ 55 and < 77 Ø 60X10 mm 0,35 kg
≥ 77 Ø 60X10 mm 0,35 kg
HR45N < 37 Ø 60X10 mm 0,35 kg
≥ 37 and < 66 Ø 60X10 mm 0,35 kg
≥ 66 Ø 60X10 mm 0,35 kg
HR15T < 81 Ø 60X10 mm 0,35 kg
≥ 81 and < 87 Ø 60X10 mm 0,35 kg
≥ 87 Ø 60X10 mm 0,35 kg
HR30T < 57 Ø 60X10 mm 0,35 kg
≥ 57 and < 70 Ø 60X10 mm 0,35 kg
≥ 70 Ø 60X10 mm 0,35 kg
HR45T < 33 Ø 60X10 mm 0,35 kg
≥ 33 and < 53 Ø 60X10 mm 0,35 kg
≥ 53 Ø 60X10 mm 0,35 kg
HR15W < 81 Ø 60X10 mm 0,35 kg
≥ 81 and < 87 Ø 60X10 mm 0,35 kg
≥ 87 Ø 60X10 mm 0,35 kg
HR15W < 81 Ø 60X10 mm 0,35 kg
≥ 81 and < 87 Ø 60X10 mm 0,35 kg
≥ 87 Ø 60X10 mm 0,35 kg
HR15W < 81 Ø 60X10 mm 0,35 kg
≥ 81 and < 87 Ø 60X10 mm 0,35 kg
≥ 87 Ø 60X10 mm 0,35 kg
HR15W < 81 Ø 60X10 mm 0,35 kg
≥ 81 and < 87 Ø 60X10 mm 0,35 kg
≥ 87 Ø 60X10 mm 0,35 kg

Brinell

Hardness Scale Hardness Range Size mm with mirror surface Weight
HBW 10/3000 95.5 to 650 Ø 90X17 mm 1 kg
HBW 10/1500 47.7 to 327 Ø 90X17 mm 1 kg
HBW 10/1000 31.8 to 218 Ø 90X17 mm 1 kg
HBW 10/500 15.9 to 109 Ø 90X17 mm 1 kg
HBW 10/250 7.96 to 54.5 Ø 60X10 mm 0,35 kg
HBW 10/100 3.18 to 21.8 Ø 60X10 mm 0,35 kg
HBW 5/750 95.5 to 650 Ø 60X10 mm 1 kg
HBW 5/250 31.8 to 218 Ø 60X10 mm 0,35 kg
HBW 5/125 15.9 to 109 Ø 60X10 mm 0,35 kg
HBW 5/62,5 7.96 to 54.5 Ø 60X10 mm 0,35 kg
HBW 5/25 3.18 to 21.8 Ø 60X10 mm 0,35 kg
HBW 2.5/187.5 95.5 to 650 Ø 60X10 mm 0,35 kg
HBW 2.5/62.5 31.8 to 218 Ø 60X10 mm 0,35 kg

Vickers

Hardness Scale Hardness Range Size mm with mirror surface Weight
HV2 From 200 to 750 Ø 60X10 mm 0,35 kg
HV3 From 200 to 750 Ø 60X10 mm 0,35 kg
HV5 From 175 to 750 Ø 60X10 mm 0,35 kg
HV10 From 175 to 750 Ø 60X10 mm 0,35 kg
HV20 From 175 to 750 Ø 60X10 mm 0,35 kg
HV30 From 175 to 750 Ø 60X10 mm 0,35 kg
HV50 From 175 to 750 Ø 60X10 mm 0,35 kg
HV100 From 175 to 750 Ø 60X10 mm 0,35 kg

Micro Vickers

Hardness Scale Hardness Range Size mm with mirror surface Weight
HV0.01 From 200 to 750 Ø 25X10 mm 0,4 kg
HV0.015 From 200 to 750 Ø 25X10 mm 0,4 kg
HV0.02 From 200 to 750 Ø 25X10 mm 0,4 kg
HV0.025 From 200 to 750 Ø 25X10 mm 0,4 kg
HV0.05 From 200 to 750 Ø 25X10 mm 0,4 kg
HV0.1 From 200 to 750 Ø 25X10 mm 0,4 kg
HV0.2 From 200 to 750 Ø 25X10 mm 0,4 kg
HV0.3 From 200 to 750 Ø 25X10 mm 0,4 kg
HV0.5 From 200 to 750 Ø 25X10 mm 0,4 kg
HV1 From 200 to 750 Ø 25X10 mm 0,4 kg

Knoop

Hardness Scale Hardness Range Size mm with mirror surface Weight
HK0.01 From 200 to 750 Ø 25X10 mm 0,4 kg
HK0.02 From 200 to 750 Ø 25X10 mm 0,4 kg
HK0.025 From 200 to 750 Ø 25X10 mm 0,4 kg
HK0.05 From 200 to 750 Ø 25X10 mm 0,4 kg
HK0.1 From 200 to 750 Ø 25X10 mm 0,4 kg
HK0.2 From 200 to 750 Ø 25X10 mm 0,4 kg
HK0.3 From 200 to 750 Ø 25X10 mm 0,4 kg
HK0.5 From 200 to 750 Ø 25X10 mm 0,4 kg
HK1 From 200 to 750 Ø 25X10 mm 0,4 kg
HK2 From 200 to 750 Ø 25X10 mm 0,4 kg