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sales@ndtone.comKT-CHardness Tester
KT-CHardness Tester
The KT-C is a multifunctional portable hardness tester combining Leeb, UCI and Portable Rockwell methods in a single device. Interchangeable probes allow reliable hardness measurement of steels, cast irons and non-ferrous metals on components ranging from massive and rough parts to thin, small or hard-to-reach areas.
Designed for production, maintenance and field inspection, the KT-C provides results in standard hardness scales including HRC, HB, HV, HRA, HRB, HSD and HL.
Description
The KT-C is a multifunctional portable hardness tester designed for non-destructive hardness testing of metals using three measurement methods: Leeb, UCI (Ultrasonic Contact Impedance) and Portable Rockwell. Interchangeable probes allow the instrument to be adapted to different materials, component sizes, surface conditions and inspection tasks.
The KT-C is suitable for production control, maintenance, incoming inspection and field testing. Measurement results can be displayed in standard hardness scales including HRC, HB, HV, HRA, HRB, HSD and HL, depending on the selected probe and measurement method.
Leeb hardness testing
The Leeb method is suitable for rapid hardness testing of large and massive components such as castings, forgings, shafts, rolls, machine parts and welded structures. Different dynamic probes allow measurements on rough surfaces, components of different mass and thickness, and areas with limited access.
The method is especially useful for field inspection and testing of heavy components that cannot be moved to a stationary hardness tester.
UCI hardness testing
The UCI method (Ultrasonic Contact Impedance) is designed for hardness testing of small, thin or surface-hardened components and for measurements in areas where the Leeb method is not suitable.
UCI probes are well suited for testing welds, heat-affected zones, hardened layers, small parts and components with limited measurement areas. Different probe loads make it possible to select the appropriate configuration according to the surface condition and thickness of the test object.
Portable Rockwell hardness testing
The Portable Rockwell method provides direct hardness measurement using controlled indentation and is suitable for a wide range of metallic components. It is particularly useful when testing parts where indentation-based measurement is preferred or where dynamic impact methods are unsuitable.
Portable Rockwell probes extend the application range of the KT-C and allow reliable field and workshop hardness testing without the need for a stationary hardness testing machine.
Features
- Multifunctional portable hardness-testing platform
- One electronic unit supporting multiple hardness measurement methods
- Leeb, UCI and Portable Rockwell measurement methods
- Extensive range of interchangeable probes for different materials, part sizes, geometries and surface conditions
- Comparative hardness testing using different measurement methods for increased result reliability
- Hardness measurement of steels, cast irons, non-ferrous metals and alloys
- Tensile-strength estimation for supported materials
- Support for HRC, HB, HV, HRA, HRB, HSD and HL scales
- Specialized probes for massive, thin-walled, surface-hardened and hard-to-access components
- UCI probes with different test forces for a wide range of inspection tasks
- Tolerance-based testing with preset acceptance limits
- Automatic averaging and statistical evaluation of measurement results
- Measurement data storage in groups for structured inspection records
- Transfer of measurement data to PC for storage, statistical processing and reporting
- Measurement results independent of probe orientation
- Wide operating temperature range
- Compact and lightweight design for laboratory, production and field use
- Shock-resistant ergonomic housing with rubberized inserts and wear-resistant glass
Basic technical characteristics
| Hardness scales | HRC, HB, HV, HRA, HRB, HSD, σ, HL | Units |
|---|---|---|
| Basic measurement error*: | ||
| for Brinell | 10 | НВ |
| for Vickers | 12 | НV |
| for Rockwell | 1.5 | НRC |
| for Leeb: | ± 3.0 % (100…500 HLD, 100…700 HLDL, 100… 600 HLC, 100…450 HLG) | |
| ± 3.0 % (500…700 HLD, 700…850 HLDL, 600…750 HLC, 450…600 HLG) | ||
| ± 2.0 % (>700 HLD, >850 HLDL, >750 HLC, >600 HLG) | ||
| Tensile strength (σ), max | 5 | % |
| Number of measurements for average value calculation | up to 99 | |
| Number of memory locations of the measurement results | up to 1000 (can be stored into 99 groups) | |
| display | colour 2.4’’ | |
| Power supply | built-in Li-Ion rechargeable battery 3.7-4.2 V, 1500-1700 mAh | |
| Operating time | 12 | h |
| Working temperature range | -30…+40 | °С |
| Dimensions | 125x55x20 | mm |
| Weight | 120 | g |
| Guarantee period: | measuring unit — 3 years | |
| transducers — 2 years | ||
| * These characteristics of measurement error are ensured on hardness test blocks with averaging from at least 10 measurements. | ||
Delivery set
- measuring unit
- probes (quantity and modification depends on customer’s selection)
- сharging unit
- mini-USB — USB type A cable for connection with computer
- operating manual
- CD with software for transfer and collection of measuring results
- shock-proof case
Probes
Materials, hardness scales, measurement ranges
| Materials | Hardness scale | Hardness measurement range | |||||
| Leeb | UCI | Portable Rockwell | |||||
| D, DC | DL | G | C | U-10N
U-50N U-100N |
SPR | ||
| Plain steel, low alloyed steel, cast steel | HL | 0-1000 | 0-1000 | 0-1000 | 0-1000 | – | |
| HB | 75-654 | 81-646 | 90-646 | 81-694 | 75-654 | 75-654 | |
| HV | 75-1000 | 80-950 | – | 81-1012 | 75-1000 | 75-1000 | |
| HRC | 20-70 | 21-67 | – | 20-70 | 20-70 | 20-70 | |
| HRA | 60-93 | – | – | – | 60-93 | – | |
| HRB | 25-100 | 37-100 | 48-100 | – | 25-100 | – | |
| HSD | 20-100 | 31-97 | – | 30-102 | 20-100 | – | |
| σ, MPa | 370-1740 | 370-1740 | 370-1740 | 370-1740 | 370-1740 | – | |
| Tool steel | HL | 0-1000 | 0-1000 | 0-1000 | 0-1000 | – | – |
| HV | 80-900 | 80-905 | – | 98-942 | – | – | |
| HRC | 20-70 | 21-67 | – | 20-67 | – | – | |
| Stainless steel | HL | 0-1000 | 0-1000 | 0-1000 | 0-1000 | – | – |
| HB | 85-655 | – | – | – | – | – | |
| HV | 85-802 | – | – | – | – | – | |
| HRC | 20-62 | – | – | – | – | – | |
| Grey cast iron | HL | 0-1000 | 0-1000 | 0-1000 | 0-1000 | – | – |
| HB | 90-664 | – | 92-326 | – | – | – | |
| Ductile iron | HL | 0-1000 | 0-1000 | 0-1000 | 0-1000 | – | – |
| HB | 95-686 | – | 127-364 | – | – | – | |
| Aluminium alloys | HL | 0-1000 | 0-1000 | 0-1000 | 0-1000 | – | – |
| HB | 19-165 | 20-187 | 19-168 | 21-167 | 19-165 | 75-450 | |
| HV | – | – | – | – | – | 75-1000 | |
| HRB | 24-85 | 24-85 | 28-86 | 23-85 | 24-85 | ||
| Brass (copper and zinc alloy) | HL | 0-1000 | 0-1000 | 0-1000 | 0-1000 | – | – |
| HB | 40-173 | – | – | – | 40-173 | 75-450 | |
| HV | – | – | – | – | – | 75-1000 | |
| HRB | 14-95 | – | – | – | – | ||
| Bronze (copper and aluminium alloy / copper and tin alloy) | HL | 0-1000 | 0-1000 | 0-1000 | 0-1000 | – | – |
| HB | 60-300 | – | – | – | 60-300 | 75-450 | |
| HV | – | – | – | – | – | 75-1000 | |
| Forged copper
|
HL | 0-1000 | 0-1000 | 0-1000 | 0-1000 | – | – |
| HB | 45-315 | – | – | – | – | 75-450 | |
| HV | – | – | – | ||||
Dynamic (Leeb) probes for KT-C Hardness Tester
Ultrasonic (UCI) probes for KT-C Hardness Tester
Portable Rockwell probes for KT-C Hardness Tester
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