Rockwell hardness testing is one of the most commonly used methods for determining the hardness of materials, particularly metals. The Rockwell method measures the depth of penetration under a major load, applied via a specific indenter type. It is widely used in both quality control and research environments for its speed, simplicity, and minimal sample preparation.
Rockwell testing includes multiple scales (such as HRC, HRB, HRA, HR15N, HR30T, and more), each tailored to different materials and applications. Choosing the correct scale is critical to achieving accurate and meaningful hardness values.
Our Rockwell hardness reference blocks are designed to cover the full range of Rockwell scales, helping you maintain confidence in your measurement systems. Whether you’re working with steel, aluminium, brass, or other metals, our blocks provide:
Traceability to national and international standards (e.g., UKAS, ASTM, ISO)
Stability and surface quality to ensure accurate indentations
Consistent performance across multiple test locations
Each block is clearly marked with its assigned hardness value and is suited for both direct and indirect verification of Rockwell hardness testers.
We supply reference blocks for the most commonly used Rockwell scales, including:
Rockwell C (HRC) – typically used for hardened steel and alloys
Rockwell B (HRB) – ideal for softer metals such as brass or aluminium
Rockwell A (HRA) – used for thin steel and surface-hardened materials
Rockwell Superficial Scales (HR15N, HR30N, HR45T, etc.) – for thin materials or coatings where lower loads are needed
We also support custom hardness values on request to suit specific calibration routines or requirements.
With over 30 years in the industry, Euro Products continues to supply reliable and accurate components for hardness testing systems around the world. Our customers rely on us for:
Expertise across all major hardness testing methods
Reliable lead times and responsive service
Competitive pricing with no compromise on quality
UK-based manufacturing and global shipping
We understand how important consistent results are when it comes to Rockwell hardness testing, and our reference blocks are crafted to deliver that reliability every time.
We supply Rockwell reference blocks across most common scales, including HRC, HRB, HRA, and superficial scales such as HR15N, HR30T, and more. If you require a specific scale or hardness range, please get in touch.
Yes. All of our Rockwell hardness reference blocks are traceable to relevant standards such as ISO 6508 and ASTM E18, with certification confirming traceability to UKAS or other accredited laboratories.
To maintain accuracy, Rockwell blocks should be cleaned regularly, stored in a controlled environment, and used only on designated test areas. Avoid excessive or uneven use of any one spot on the block.
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