Categories | Digital Hardness Tester |
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Brand Name: | Mitech |
Model Number: | MHB-3000 |
Certification: | ISO.. |
Place of Origin: | Beijing,China |
MOQ: | 1 SET |
Payment Terms: | T/T, Western Union,Paypal |
Supply Ability: | 5 sets per day |
Delivery Time: | 8-10 days after paid |
Packaging Details: | carton box |
Measuring range: | 8 – 650 HBW |
Testing Force Application Mode: | Automatic (loading, holding, unloading) |
Indenter objective lens conversion mode: | manual operation |
Display usage: | LED eight digital tube display |
Microocular magnification: | 20X |
Test force holding time: | 5~60s |
Minimum division: | 0.005 mm |
Size: | 753×550×236 mm |
Total Weight: | 123 kg |
Company Info. |
Mitech CO.,LTD. |
View Contact Details |
Product List |
MITECH MHB-3000 Electronic Brinell Hardness Tester
Overview
Mitech MHB-3000 Electronic Brinell Hardness Tester, based on the mechanical principle of hard alloy indenter pressing into the sample surface to produce indentation, realizing the material hardness measurement by measuring the diameter of the indentation , it is novel and high reliable with accurately measurement. LED eight digital tubes and luminescent secondary tube display, simple operation, it can visually display the test results to meet the hardness testing requirement for the quality control and qualified assessment of the workpiece sample. It is widely used in metal processing and manufacturing, various metal material’s failure analysis and other fields like colleges and research institutions. It is the new type Brinell hardness testing instrument for testing the hardness of the materials like cast iron, steel, soft alloy and so on.
Technical Parameters
Technical specifications | Technical Parameters |
The power series | 612.5N(62.5kgf),980N(100kgf),1225N(125kgf),1837.5N(187.5kgf), 2450N(250kgf),4900N(500kgf),7350N(750kgf),9800N(1000kgf),14700N(1500kgf),29400N(3000kgf) |
Measuring range | 8 – 650 HBW |
Testing Force Application Mode | Automatic (loading, holding, unloading) |
Indenter objective lens conversion mode | manual operation |
display usage | LED eight digital tube display |
Microocular magnification | 20X |
Test force holding time | 5~60s |
Minimum division | 0.005 mm |
Max sample height | 220mm |
Max distance from head to body | 270mm |
Voltage | AC 220V/50Hz |
Size | 753×550×236 mm |
Total Weight | 123 kg |
Indication accuracy
Standard Block | Indicating Error%(H) | Repeatability Error |
≤125 | ±3 | 0.035`d |
125<HBW≤225 | ±2.5 | 0.030`d |
>225 | ±2 | 0.025`d |
H:Hardness of standard block `d: Indentation diameter(average)
Hardness is not a simple physical quantity, but a reflection of the material elasticity, plasticity, strength and toughness. And hardness test is the simplest mechanical testing method to determine the metal material performance, also one of the important means to judge the products quality.
Brinell hardness test: Test force (F) is on the steel ball with certain diameter(D) , pressed on sample surface. After a period of time, cancel the force. The indentation diameter is get by measuring with micrometer ocular, thus to calculate the average pressure(N/mm²).Then we can get the Brinell hardness of the sample as below:
Tips:F—Test force on steel ball,unit: N
D—Diameter of steel ball ,unit: mm
d—Indentation diameter,unit: mm
0.102—Rule coefficient
Features
Applied condition
Materials | Brinell hardness | 0.102F/D2 |
Steel and cast iron | <140 | 10 |
≥140 | 30 | |
Copper and copper alloys | <35 | 5 |
35~130 | 10 | |
>130 | 30 | |
Light metals and their alloys | <35 | 2.5 |
35~80 | 5,10 | |
>80 | 10 | |
F:Test force(k) D:Head diameter(mm) |
Application field
Working conditions
Configuration
Standard Configuration | No. | Item | Quantity | Note |
1 | Main body | 1 | ||
2 | 20×Lens | 1 | ||
3 | φ2.5mm ball | 1 | ||
4 | φ5mm ball | 1 | ||
5 | φ10mm ball | 1 | ||
6 | Small testing table | Diameter 80mm | ||
7 | Large testing table | 1 | Diameter 200mm | |
8 | V-shape testing table | 1 | For cylindrical sample | |
9 | Standard Hardness Block HBW/3000/10(150-250) | 1 | ||
10 | Standard Hardness Block HBW/1000/10(75~125) | 1 | ||
11 | Standard Hardness Block HBW/187.5/2.5(150-250) | 1 | ||
12 | Fuse wire(2A) | 3 | ||
13 | Power Cable | 1 | ||
14 | RS232 Cable | 1 | ||
15 | Plastic dust cover | 1 | ||
16 | Attached files | 1 | ||
17 | Instrument case | 1 |
Maintenance and care