LEEB DL Hardness Gauge Impact unit for steel and cast steel materials
The LEEB DL Impact unit is an Optional accessory to the Leeb120 and Leeb140 Leeb Hardness Testers for the measurement of hardness of materials.
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product description
Leeb DL impact device is an optional accessory for Leeb120 and Leeb140 Leeb Hardness Testers, used to measure the hardness of steel and cast steel materials.
Product testing range
| Material | Hardness system | Impact device | |||
| D/DC | C | G | DL | ||
| steel and cast steel | HRC | 17.1~68.5 | 20.0~69.5 | 20.6~68.2 | |
| HRB | 59.6~99.6 | 47.7~99.9 | 37.0~99.9 | ||
| HB | 140~651 | 80~683 | 90~646 | 150~646 | |
| HV | 83~976 | 80~996 | 85~950 | ||
| HS | 26.4~99.5 | 31.9~102.3 | 26.5~99.4 | ||
| forged steel | HB | 142~651 | |||
| alloy tool steel | HRC | 17.1~67.1 | 20.0~69.5 | ||
| HV | 83~976 | 80~996 | |||
| Stainless steel | HRB | 59.6~99.6 | |||
| HB | 140~651 | ||||
| HV | 83~976 | ||||
| grey cast iron | 140~334 | 92~326 | |||
| Ductile Iron | HB | 140~387 | 140~364 | ||
| cast aluminum alloy | HB | 30~159 | |||
| copper zinc alloy | HB | 40~173 | |||
| Copper-tin alloy (bronze) | HB | 60~290 | |||
| pure copper | HB | 45~315 | |||
Pictures


Leeb DL type Impact device (Hardness Gauge)Specifications
| LIST | VALUE |
|---|---|
| Impact energy | 11mJ |
| Impact device Mass | 7.2g |
| Ball Hardness | 1600HV |
| Ball head diameter | 3mm |
| Ball head material | tungsten carbide |
| Impact device diameter | 20mm |
| Impact device length | 75mm |
| Impact device Mass | 50g |
| Maximum Specimen Hardness | 940HV |
| Specimen Surface Roughness | 1.6µm |
| Minimum specimen Weight | >5kg |
| Need stable support | 2~5kg |
| Dense coupling is required | 0.05~2kg |
| Minimum test Film thickness | 5mm |
| Minimum depth of hardened layer | ≥0.8mm |
| Hardness 300HV Indentation Diameter | 0.54mm |
| Hardness 300HV Indentation | 24µm |
| Hardness 600HV Indentation Diameter | 0.54mm |
| Hardness 600HV Indentation | 17µm |
| Hardness 800HV Indentation Diameter | 0.35mm |
| Hardness 800HV Indentation | 10µm |
| Application of impact device | DL type measurement slender narrow groove or hole |
Leeb DL type Impact device (Hardness Gauge) Packing list
Impact device x1, Certificate x1, Manual x1, Encasement box x1
[Note] Because the manufacturer's packaging may be updated or upgraded, the detailed packaging list shall be subject to the latest standard configuration of the manufacturer.
FAQ
- ActiveDL/T 1845-2018
- ActiveGB/T 13313-2008
- ActiveGB/T 17394.1-2014
- ActiveGB/T 17394.4-2014
- ActiveGB/T 17394.3-2022
- ActiveGB/T 17394.2-2022
- AbolishGB/T 17394-1998
- AbolishGB/T 17394.3-2012
- AbolishGB/T 17394.2-2012
- ActiveJB/T 9378-2001






