Rockwell Hardness Testing Calibration Kits

Rockwell Calibration Sets contain three test blocks (low, medium, and high), an indenter, and a case. Each component can also be purchased separately and has its own part number. The calibration sets are assembled and shipped from the Wilson Test Block Calibration Laboratory. All calibration sets conform to ASTM E18; in addition, all calibration sets with a ball penetrator also conform to ISO 6508-3.

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We work directly with the steel and brass mills to specify the chemical composition

Our machining processes (grinding, lapping, polishing) are all done in house, at the site of calibration.

100% inspection to ensure that every single test block meets the physical requirements of ASTM (thickness, flatness, parallelism, surface roughness)

Rockwell test blocks support NADCAP compliance

Rockwell Hardness Testing Calibration Kits Specifications
Block size:	Ø 2.4 in x 0.35 in (Ø 60mm x 9mm)
Block weight:	±0.66 lbs (± 0.3kg)
Certification:	According to ISO 6508-3 & ASTM E18
The Buehler-Wilson Hardness Calibration Laboratory is accredited to ISO / IEC 17025 by A2LA

HR Scale	Part Number	Block Nominal Hardness			Indenter	Indenter Type
		Low	Medium	High
A	9100489	35	73	83	900006838	A Brale
B W	9100491W	40	70	95	9100405	1/16" Carbide Ball Penetrator
C	9100498	25	45	63	9100401	C Brale
E W	9100497W	75	87	99	9100405	1/8" Carbide Ball Penetrator
F W	9100499W	63	86	97	9100405	1/16" Carbide Ball Penetrator
15N	9100493	72	83	91	900002015	N Brale
30N	9100490	46	64	80	900002015	N Brale
45N	9100494	25	49	70	900002015	N Brale
15T W	9100496W	77	84	91.5	9100405	1/16" Carbide Ball Penetrator
30T W	9100492W	50	63	80	9100405	1/16" Carbide Ball Penetrator
45T W	9100495W	23	43	67	9100405	1/16" Carbide Ball Penetrator