HR30N Carbide Rockwell Reference Blocks 25mm x 25mm x 6mm

Description

• HR30N Reference blocks are calibrated with a Standardizing Diamond Indenter.
• Major Force applied is 30kg with a pre-load of 3kg.
• All blocks are supplied with a UKAS or EURO certificate.
• Nominal values selected are supplied within ± 1 points. (For example if you select 88 HR30N, we will supply anything from 87 to 89 HR30N. We will always try our hardest to get as close to the nominal value as possible.)
• Uniformity of Hardness Calibration Guarantee for the following values:
  •  41 HR30N to 75 HR30N   ≤ 0.5 HR30N
  •  76 HR30N to 92 HR30N  ≤ 0.3 HR30N
• Uncertainty of Measurement : 40 to 60 HR30N is 0.55 HR30N, 80 to 92 HR30N is 0.27 HR30N.

Additional information