Specification :

Hardness tester MH180

l Compact plastic casesuitable for use under poor working conditions. Test at any angle, even upside down.
l Wide measuring range. It can measure the hardness of all metallic materials. Direct display of hardness scales HRB, HRC, HV, HB, HS, HL
l Large screen (segment LCD), showing all functions and parameters. With EL background light.
l Large capacity memory could store 100 groups information.
l Datapro Software to connect with PC via RS232 port. Micro printer support
l Software calibration function.

Configuration:
No. Item Quantity Remarks
Standard Configuration 1 Main unit 1
2 D type impact device 1 With cable
3 Standard test block 1
4 Cleaning brush (I) 1
5 Small support ring 1
6 Alkaline battery 2 AA size
7 Manual 1
8 Instrument package case 1
Optional Configuration 9 Cleaning brush (II) 1 For use with G type impact device
10 Other type of impact devices and support rings Refer to Table 3 and Table 4 in the appendix.
11 DataPro software 1
12 Communication cable 1
13 Micro Printer 1
14 Print cable 1

Technical Specifications:
l Measuring range
(170-960)HLD,(17-68.5)HRC,(19-651)HB,(80-976)HV,(30-100)HS,(59-85)HRA ,(13-100)HRB
l Measuring direction360°“–—˜™’Â�‘
l Hardness ScaleHL
HB
HRB
HRC
HRA
HV
HS
l Displaysegment LCD
l Data memorymax. 100 groupsrelative to impact times 32^1
l Working voltage3V2 AA size alkaline battery
l Continuous working periodabout 100 hoursWith backlight off
l Communication interfaceRS232
Main Application
l Die cavity of molds
l Bearings and other parts
l Failure analysis of pressure vessel, steam generator and other equipment
l Heavy work piece
l The installed machinery and permanently assembled parts.
l Testing surface of a small hollow space
l Material identification in the warehouse of metallic materials
l Rapid testing in large range and multi-measuring areas for large-scale work piece
Testing range:

Other type of impact devices
Material Method Impact device
D/DC D+15 C G E DL
Steel and cast steel
HRC 20^68.5 19.3^67.9 20.0^69.5 22.4^70.7 20.6^68.2
HRB 38.4^99.6 4 7.7^99.9 37.0^99.9
HRA 59.1^85.8 61.7^88.0
HB 127^651 80^638 80^683 90^6 46 83^663 81^646
HV 83^976 80^937 80^996 84^1042 80^950
HS 32.2^99.5 33.3^9 9.3 31.8^102.1 35.8^102.6 30.6^96.8
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
Grey cast iron
HRC
HB 93^334 92^326
HV
Nodular cast iron HRC
HB 131^387 127^364
HV
Cast aluminium alloys HB 19^164 23^210 32^168
HRB 23.8^84.6 22.7^85.0 23.8^85.5
BRASS(cop per-zinc alloys)
HB 40^173
HRB 13.5^95.3
BRONZE(copper-aluminium/tin alloys) HB 60^290
Wrought copper alloys HB 45^315
Available type of impact device DC: Test hole or hollow cylindrical
D+15:
Test groove or reentrant surface
C:Test small, light, thin parts and surface of hardened layer
G:
Test large, thick, heavy and rough surface steel E: Test super high hardness material DL: Test slender narrow groove or hole
Testing conditions:
Type of impact device DC(D)/DL D+15 C G E
Impacting energy
Mass of impact body 11mJ
5.5g/7.2g 11mJ
7.8g 2.7mJ
3.0g 90mJ
20.0g 11mJ
5.5g
Test tip hardness:
Dia. Test tip:
Material of test tip: 1600HV
3mm
Tungsten carbide 1600HV
3mm
Tungsten carbide 1600HV
3mm
Tungsten carbide 1600HV
5mm
Tungsten carbide 5000HV
3mm
synthetic diamond
Impact device diameter:
Impact device length:
Impact device weight: 20mm
86(147)/ 75mm 50g 20mm
162mm
80g 20mm
141mm
75g 30mm
254mm
250g 20mm
155mm
80g
Max. hardness of sample 940HV 940HV 1000HV 650HB 1200HV
Mean roughness value of sample surface Ra: 1.6¼m 1.6¼m 0.4¼m 6.3¼m 1.6¼m
Min. weight of sample:
Measure directly
Need support firmly
Need coupling tightly
>5kg
2^5kg
0.05^2kg
>5kg
2^5kg
0.05^2kg
>1.5kg
0.5^1.5kg
0.02^0.5kg
>15kg
5^15kg
0.5^5kg
>5kg
2^5kg
0.05^2kg
Min. thickness of sample Coupling tightly
Min. layer thickness for surface hardening
5mm

e0.8mm
5mm

e0.8mm
1mm

e0.2mm
10mm

e1.2mm
5mm

e0.8mm

Size of tip indentation

Hardness 300HV Indentation diameter
Depth of indentation 0.54mm

24¼m 0.54mm

24¼m 0.38mm

12¼m 1.03mm

53¼m 0.54mm

24¼m
Hardness 600HV Indentation diameter
Depth of indentation 0.54mm

17¼m 0.54mm

17¼m 0.32mm

8¼m 0.90mm

41¼m 0.54mm

17¼m
Hardness 800HV Indentation diameter
Depth of indentation 0.35mm

10¼m 0.35mm

10¼m 0.35mm

7¼m --

-- 0.35mm

10¼m