Calibration Certificate: All of our products coming with original calibration certificate. Also, every week there are hundreds of our products are getting third party calibration certificates (such as UKAS and NIST approved institutes and companies) in Europe and North America.
1.1 Features
- LCD display of 128×64 matrix is used.
- Converts to all common hardness scales(HV ,HB,HRC,HRB,HRA,HS).
- English displaying and menu operating, the operation is easy and convenient.
- With RS232 interface, multiple communication modes are adopted to meet customized requirements of various users.
- Equipped with 7 types of impact devices which need not to be recalibrated when changing them, the system can identify the type of impact device automatically.
- Max 600 groups impact times:32?1?of data can be stored at internal non volatile data storage.
- Upper and lower limit of hardness can be preset; When the tested value exceeds the limits, alarm will send out automatically to make convenient for the requirements of batch measurements.
- Back light display has been used to make convenient for the use in poor light.
- Test values software calibration function.
- Material of “cast steel” is added; HB values can be read out directly when D/DC impact device is used to measure “cast steel” work piece.
- Printer be separated from main unit and copies of testing results can be printed as required.
- Power is two of AA battery. Continuous working period: approx. 100 h (no back light on).
- Software of PC can be installed according to the requirements of user, the function will be more powerful to satisfy the more strict demands of quality control and management.
1.2 Main Application and Testing Range
1.2.1 Main Application
- The assembled machinery and permanently installed parts
- Die cavity of molds
- Heavy work piece
- Failure analysis of pressure vessel, steam turbo-generator set and other equipment
- Narrow testing space where work piece installed
- Bearings and other parts
- Cases which require the test result with normalized original recording
- Material identification of the metal material warehouse
- Quick tests of large range and multipoint measuring positions for heavy workpiece
1.2.2 Testing Range
Testing range see table 1 and table 2.
Table 1
Material | Hardness method | Impact device | |||||
Steel and cast steel | D/DC | D+15 | C | G | E | DL | |
HRC | 17.9?68.5 | 19.3?67.9 | 20.0?69.5 | 22.4?70.7 | 20.6?68.2 | ||
HRB | 59.6?99.6 | 47.7?99.9 | 37.0?99.9 | ||||
HRA | 59.1~85.8 | 61.7?88.0 | |||||
HB | 127?651 | 80?638 | 80?683 | 83?663 | 81?646 | ||
HV | 83?976 | 80?937 | 80?996 | 84?1042 | 80?950 | ||
HS | 32.2?99.5 | 33.3?99.3 | 31.8?102.1 | 35.8?102.6 | 30.6?96.8 | ||
Hammered steel | HB | 143~650 | |||||
Cold work tool steel | HRC | 20.4?67.1 | 19.8?68.2 | 20.7?68.2 | 22.6?70.2 | ||
HV | 80?898 | 80?935 | 100?941 | 82?1009 | |||
Stainless steel | HRB | 46.5?101.7 | |||||
HB | 85?655 | ||||||
HV | 85?802 | ||||||
Gray cast iron | HRC | ||||||
HB | 93?334 | 92?326 | |||||
HV | |||||||
Nodular cast iron | HRC | ||||||
HB | 131?387 | 127?364 | |||||
HV | |||||||
Cast aluminum alloys |
HB | 19?164 | 23?210 | 32?168 | |||
HRB | 23.8?84.6 | 22.7?85.0 | 23.8?85.5 | ||||
Brass(copper-zinc alloys) | HB | 40?173 | |||||
HRB | 13.5?95.3 | ||||||
Bronze (copper-aluminum/copper-tin alloys) | HB | 60?290 | |||||
Wrought copper alloys |
HB | 45?315 |
1.3 Types and specification
No. | Material | HLD | Strength ?b(MPa) |
1 | Mild steel | 350?522 | 374?780 |
2 | High-carbon steel | 500?710 | 737?1670 |
3 | Cr steel | 500?730 | 707?1829 |
4 | Cr-V steel | 500?750 | 704?1980 |
5 | Cr-Ni steel | 500?750 | 763?2007 |
6 | Cr-Mo steel | 500?738 | 721?1875 |
7 | Cr-Ni-Mo steel | 540?738 | 844?1933 |
8 | Cr-Mn-Si steel | 500?750 | 755?1993 |
9 | Super strength steel | 630?800 | 1180?2652 |
10 | Stainless steel | 500?710 | 703?1676 |
Table 3
Non conventional impact devices |
DC(D)/DL | D+15 | C | G | E | |
Impacting energy |
11Mj |
11mJ |
2.7mJ |
90mJ |
11mJ |
|
Test tip Hardness Diameter of test tip |
1600HV |
1600HV |
1600HV |
1600HV |
5000HV |
|
Impact device Diameter |
20mm |
20mm |
20mm |
30mm |
20mm |
|
Max. hardness of workpiece |
940HV |
940HV |
1000HV |
650HB |
1200HV |
|
Mean roughness of workpiece surface of the Ra |
1.6?m |
1.6?m |
0.4?m |
6.3?m |
1.6?m |
|
Min. weight of sample |
>5kg |
>5kg |
>1.5kg |
>15kg |
>5kg |
|
Min. thickness of sample coupling tightly |
5mm |
5mm |
1mm |
10mm |
5mm |
|
Size of tip indentation |
||||||
Hardness 300HV |
Indentation |
0.54mm |
0.54mm |
0.38mm |
1.03mm |
0.54mm |
Indentation |
24?m |
24?m |
12?m |
53?m |
24?m |
|
Hardness 600HV |
Indentation |
0.54mm |
0.54mm |
0.32mm |
0.90mm |
0.54mm |
Indentation |
17?m |
17?m |
8?m |
41?m |
17?m |
|
Hardness 800HV |
Indentation |
0.35mm |
0.35mm |
0.35mm |
--- |
0.35mm |
Indentation |
10?m |
10?m |
7?m |
--- |
10?m |
|
Available type of impact device |
D: |
D+15: |
C: |
G: |
E: |
|
DC: |
||||||
DL: |