HRA Rockwell Reference Blocks 65mm Ø x 15mm

Name: HRA Rockwell Reference Blocks 65mm Ø x 15mm
SKU: 117182
Availability: InStock

£100.00

Hardness Value :

Hexagonal Grid :

Material :

Certificate Required :

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SKU: N/A Category: Rockwell Reference

Description

HRA Reference blocks are calibrated with a Standardizing Diamond Indenter.
Major Force applied is 60kg with a pre-load of 10kg.
All blocks are supplied with a UKAS or EURO certificate.
Nominal values selected are supplied within ± 2 points. (For example if you select 68 HRA, we will supply anything from 66 to 70 HRA. 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:
- 22 HRA to 70 HRA ≤ 0.4 HRA
- 71 HRA to 81 HRA ≤ 0.3 HRA
- 82 HRA to 87 HRA ≤ 0.2 HRA
Uncertainty of Measurement : 20 to 70 HRA is 0.28 HRA, 70 to 80 HRA is 0.16 HRA, 80 to 87 HRA is 0.15 HRA, 87 to 92 HRA is 0.10 HRA.

Weight	N/A
Hardness Value :	22, 26, 31, 35, 40, 45, 47, 50, 53, 55, 59, 60, 62, 63, 65, 68, 70, 73, 76, 78, 81, 83, 84, 85, 86, 87
Hexagonal Grid :	NO GRID, CORRECT SIZE AS PER THE STANDARDS, 2mm, 2.5mm, 3mm, 3.5mm, 4mm, 4.5mm, 5mm, 5.5mm, 6mm
Material :	STEEL, ALUMINIUM
Certificate Required :	UKAS, EURO

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