Metrix+ Hardmaster-P Leeb Hardness Tester Portable Metal Hardness Meter

A. Product Overview

The Metrix Plus Hardmaster-P Portable Leeb Hardness Tester is designed for non-destructive hardness testing of metallic components using the Leeb rebound measurement method.

Unlike conventional bench hardness testing machines, the Hardmaster-P can be taken directly to large workpieces, installed machinery and production components. This makes it particularly useful when a component cannot easily be moved to a laboratory.

Key Specifications

• Model: Metrix Plus Hardmaster-P
• Testing method: Leeb rebound hardness testing
• Measuring range: 170 to 960 HLD
• Hardness scales: HL, HB, HRB, HRC, HRA, HV and HS
• Standard impact device: Type D
• Optional impact devices: DC, D and 15, G, C and DL
• Display: 128 x 64 dot matrix backlit LCD
• Memory: Up to 600 groups of measurement data
• Accuracy: Approximately ±6 HLD at 760 ±30 HLD
• Repeatability: Approximately 6 HLD at 760 ±30 HLD
• Maximum workpiece hardness: Up to 996 HV with suitable impact devices
• Maximum with Type G impact device: Up to 646 HB
• Minimum workpiece radius: 50 mm
• Minimum radius with special supporting ring: 10 mm
• Minimum hardened surface thickness: 0.8 mm
• Power supply: 3 AA batteries
• Continuous operation: Approximately 100 hours with backlight
• Operating temperature: 0 to 40 degrees Celsius
• Relative humidity: Up to 90 percent
• Main unit dimensions: Approximately 125 x 67 x 31 mm
• Main unit weight: Approximately 0.3 kg
• Inbuilt software calibration
• Cast steel material setting
• Data storage capability

For cast steel workpieces, HB values can also be displayed directly when using suitable D or DC impact devices.

B. Working Principle

The Hardmaster-P Leeb Hardness Tester works according to the rebound hardness measurement principle.

An impact device contains an impact body that is propelled against the surface of the metal being tested. The instrument measures the velocity of the impact body immediately before impact and its rebound velocity immediately after impact.

The relationship between these two velocities is used to calculate the Leeb hardness value.

In simple terms:

A harder metal produces a stronger rebound.

A softer metal absorbs more impact energy and produces a lower rebound.

The Hardmaster-P determines the Leeb hardness value and can then convert the result into commonly used hardness scales such as:

• HLD
• HB Brinell
• HRC Rockwell C
• HRB Rockwell B
• HRA Rockwell A
• HV Vickers
• HS Shore

This allows technicians to use a portable tester while obtaining hardness values that are familiar across different industrial applications.

C. Why Is the Hardmaster-P Used?

The Metrix Plus Hardmaster-P is primarily used when conventional hardness testing machines are impractical because the component is large, heavy, permanently installed or difficult to transport.

It is useful for checking:

• Material hardness
• Heat treatment quality
• Production consistency
• Component wear
• Material identification
• Manufacturing defects
• Maintenance condition
• Failure analysis
• Quality of incoming metallic materials
• Hardness variations across large workpieces

Typical Applications

The Hardmaster-P can be used for:

• Die cavity hardness measurement
• Mould hardness inspection
• Bearing inspection
• Installed machinery inspection
• Heavy workpiece testing
• Production line component testing
• Pressure vessel failure analysis
• Steam generator inspection
• Warehouse material identification
• Large metal component inspection
• Multi-point hardness testing
• Maintenance inspection
• Quality assurance testing
• Heat treated component verification

One major advantage is that hardness can be checked directly on the workpiece without cutting a sample from the component for laboratory testing.

D. Suitable Buyers

The Metrix Plus Hardmaster-P Leeb Hardness Tester is suitable for:

• Metal fabrication companies
• Steel manufacturing companies
• Foundries
• Forging industries
• Casting manufacturers
• Machine manufacturers
• Tool and die manufacturers
• Mould manufacturers
• Bearing manufacturers
• Heavy engineering companies
• Pressure vessel manufacturers
• Boiler manufacturers
• Power plants
• Petrochemical industries
• Oil and gas industries
• Automotive component manufacturers
• Railway maintenance departments
• Shipbuilding industries
• Maintenance departments
• Quality control departments
• Quality assurance departments
• Inspection agencies
• Material testing laboratories
• Industrial testing laboratories
• Heat treatment companies
• Engineering workshops
• Research and development facilities
• Metal stockists and warehouses

Frequently Asked Questions

1. What is the Metrix Plus Hardmaster-P?

The Metrix Plus Hardmaster-P is a portable Leeb hardness tester designed for hardness measurement of metallic workpieces using the rebound testing principle.

2. What is the measuring range of the Hardmaster-P?

The Hardmaster-P has a measuring range of 170 to 960 HLD.

3. Which hardness scales does the Hardmaster-P support?

It supports HL, HB, HRB, HRC, HRA, HV and HS hardness scales.

4. What type of hardness testing method does it use?

The Hardmaster-P uses the Leeb rebound hardness testing method.

5. What is the standard impact device supplied with the Hardmaster-P?

The standard configuration includes a Type D impact device.

6. Are other impact devices available?

Yes. Optional impact devices include DC, D and 15, G, C and DL, allowing the tester to accommodate different workpiece shapes and testing requirements.

7. Can the Hardmaster-P measure HRC hardness?

Yes. The instrument can convert Leeb hardness measurements into the HRC Rockwell C scale when applicable.

8. Can it measure Brinell hardness?

Yes. The Hardmaster-P supports HB Brinell hardness conversion.

9. Can it measure Vickers hardness?

Yes. HV Vickers hardness is one of the supported hardness scales.

10. Can the Hardmaster-P test cast steel?

Yes. Cast steel is included in the instrument's material options. HB values can be read directly when a suitable D or DC impact device is used.

11. Is the Hardmaster-P suitable for large metal components?

Yes. Large and heavy metallic workpieces are among the primary applications of a portable Leeb hardness tester.

12. Can it test installed machinery?

Yes. The portable design allows hardness measurements to be taken directly on suitable installed machinery without removing the component.

13. Can the Hardmaster-P be used for mould testing?

Yes. Measuring the hardness of die cavities and mould surfaces is one of its specified applications.

14. Can it be used for bearing inspection?

Yes. Bearing inspection is one of the listed industrial applications of the Hardmaster-P.

15. Can it be used for pressure vessel inspection?

Yes. The Hardmaster-P can assist with hardness measurement during the inspection and failure analysis of pressure vessels and similar equipment.