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Dl Probe Of Leeb Hardness Tester For Testing Slender Narrow Groove Hole

Basic Information
Place of Origin: China
Brand Name: TMTeck
Certification: EN ISO 16859-2016
Model Number: DL
Minimum Order Quantity: 1
Price: Negotiation
Packaging Details: Carton
Delivery Time: 3-5 work days
Payment Terms: T/T, Western Union
Supply Ability: 100PCS/Two weeks
Detail Information
Impacting Energy: 11mJ Dia. Test Tip: 3mm
Test Tip Hardness: 1600HV Material Of Test Tip: Tungsten Carbide
Impact Device Diam: 20mm Available Type Of Impact Device: Testslender Narrow Groove Or Hole
High Light:

digital hardness meter

,

handheld hardness tester


Product Description

DL type impact device,DL probe of Leeb hardness tester for Testing slender narrow groove or hole

 

Needle front section diameter 4.2 mm, lenght 50 mm.
Application: Measurements in extremely confined spaces


Ship Direct from Factory

 

APPLY: The DL type is used for the measurement of parts such as the bottom of the deep groove or the profile (such as the tooth surface), and the G type is used to detect hard and large test pieces such as forgings and castings.

 

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     47.7~99.9   37.0~99.9
HRA 59.1~85.8       61.7~88.0  
HB 127~651 80~638 80~683 90~646 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

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(copper-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: 1.6μm 1.6μm 0.4μm 6.3μm 1.6μm

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

 

≥0.8mm

 

5mm

 

≥0.8mm

 

1mm

 

≥0.2mm

 

10mm

 

≥1.2mm

 

5mm

 

≥0.8mm

 

Size of tip indentation

 

Hardness 300HV

Indentation diameter

Depth of indentation

0.54mm

 

24μm

0.54mm

 

24μm

0.38mm

 

12μm

1.03mm

 

53μm

0.54mm

 

24μm

Hardness 600HV

Indentation diameter

Depth of indentation

0.54mm

 

17μm

0.54mm

 

17μm

0.32mm

 

8μm

0.90mm

 

41μm

0.54mm

 

17μm

Hardness 800HV

Indentation diameter

Depth of indentation

0.35mm

 

10μm

0.35mm

 

10μm

0.35mm

 

7μm

--

 

--

0.35mm

 

10μ

 

Dl Probe Of Leeb Hardness Tester For Testing Slender Narrow Groove Hole 0

 

 

 

Contact Details
WEI

Phone Number : 0086-13911515082

WhatsApp : +008613911515082