Carbide gauge block sets, also known as carbide gauge blocks or tungsten carbide Johnson gauge blocks, are precision length standards used as reference standards in metrology, quality control and calibration of measuring instruments. Available configurations include 32, 47, 87, 103 and 122 pieces, in grade 0 and grade 1.
The composition of the sets is designed to allow multiple nominal dimensions to be created by combining different elements. This makes it possible to cover a wide measuring range with a single set, simplifying dimensional inspection operations and making the sets particularly suitable both for laboratories and production departments.
One of the most important properties of gauge blocks is the possibility of being wrung together to obtain different dimensional combinations according to the required nominal size. In carbide sets, this versatility is combined with a material specifically selected when highly wear-resistant measuring surfaces are required over time.
Carbide gauge blocks are particularly suitable for applications involving frequent use and where durability of the measuring surfaces is an important factor in the selection of the reference standard. For this reason, they are widely used in environments where operational continuity is required and where repeated inspection and calibration activities are performed.
Dimensional and metrological characteristics comply with ISO 3650. The technical data sheet includes flatness tolerances and metrological values at 20 °C for the different application grades.
In particular:
- Grade 1 for inspection and calibration of measuring instruments
- Grade 0 for use in climate-controlled environments and metrology laboratories
Carbide sets can also be used together with stainless steel gauge block packers, allowing multiple elements to be assembled into stable configurations for dimensional inspection applications. This setup makes it possible to perform internal and external measurements and makes the system suitable for inspection and calibration of measuring instruments such as calipers, micrometers, dial bore gauges and other measuring devices.
Upon request, sets can be supplied with a calibration report or ACCREDIA certificate.
Applications
- Dimensional inspection using precision length standards
- Inspection and calibration of calipers, micrometers and dial bore gauges
- Use in metrology laboratories and quality control departments
- Creation of nominal dimensions by wringing multiple gauge blocks together
- Metrological reference standards for accurate production inspections
- Frequent-use applications requiring high wear resistance
FAQ – Carbide gauge block sets
What are carbide gauge block sets?
They are sets of precision length standards used as reference standards for dimensional inspection, inspection of measuring instruments and calibration activities.
Why choose carbide gauge blocks?
They are particularly suitable for frequent-use applications where long-term durability of the measuring surfaces is important.
Can carbide gauge blocks be combined together?
Yes, they can be wrung together to obtain different reference lengths and dimensional combinations according to the required nominal size.
Which configurations are available?
Available configurations include 32, 47, 87, 103 and 122 pieces in grades 0 and 1.
What are grades 0 and 1 used for?
Grade 1 is suitable for inspection and calibration of measuring instruments, while grade 0 is intended for use in climate-controlled environments and metrology laboratories.
Can they be used with stainless steel gauge block packers?
Yes, combining them with stainless steel gauge block packers allows stable reference lengths to be created for internal and external measurements and calibration applications.
Which measuring instruments are most commonly inspected with them?
They are mainly used for inspection and calibration of calipers, micrometers and dial bore gauges.
Are they available with certification?
Yes, they can be supplied with a calibration report or ACCREDIA certificate.
When should carbide gauge blocks be preferred over steel gauge blocks?
They are particularly suitable when the gauge blocks are used continuously and a solution focused on long-term durability of the measuring surfaces is required.
When should steel or carbide gauge blocks be selected?
The choice between steel gauge blocks and carbide gauge blocks mainly depends on the type of application and the frequency of use.
Steel gauge blocks represent the most traditional and widely used solution for dimensional inspection and calibration applications. Carbide gauge blocks, on the other hand, are generally preferred when the main requirement is long-term durability of the measuring surfaces, especially in applications involving frequent use.
From a metrological standpoint, both solutions are available with characteristics compliant with ISO 3650 and in grades suitable for different application environments.
When to choose steel gauge blocks
- When a traditional and widely used solution is preferred
- When individual elements must be easily integrated or replaced within an existing set
- When working mainly with conventional reference standards in workshops or laboratories
When to choose carbide gauge blocks
- When greater durability of the measuring surfaces is required
- When the gauge blocks are frequently used for repetitive inspections
- When a solution designed for intensive use is required
In both cases, gauge blocks can be used as reference standards for inspection and calibration of measuring instruments and, when combined with stainless steel gauge block packers, they can also be used to create reference lengths for internal and external measurements.
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