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CE Certified Advanced Digital Hardness Tester Brinell (MHBD-3000P)

May 31, 2018

Basic Info

  • Model NO.: MHBD-3000P

  • Measuring Range: HB

  • Standard: ISO, ASTM

  • Auto Hardness Conversion: Hr, Hv, HK, etc

  • Execution Standard: ISO 6506, ASTM E10-12, JIS Z2243, GB/T 231

  • Max Height of Specimen: 220mm

  • Power Supply: 220V/50Hz; 110V/60Hz

  • Packing Dimension: 625 X430 X950mm

  • Specification: CE

  • HS Code: 9024102000

  • Type: Brinell Hardness Tester

  • Application: Metal

  • Hardness Display: Check Table of Brinell Hardness

  • Output Data: RS 232/Printer

  • Testing Force: 62.5kgf, 100kgf, 125kgf, 187.5kgf,750kgf, 3000kgf

  • Instrument Throat: 120mm

  • Packing Weight: 149kg/135kg

  • Trademark: SIOMM

  • Origin: Shanghai, China

Product Description

MHBD-3000P adopts the load cell to replace the traditional weights, this innovative design makes the instrument more accurate.
 
MHBD-3000P selection of testing force and dwell time is controlled and monitored on the front panel, it is automatic during the process of loading, dwell and unloading.

MHBD-3000P uses 20x digital brinell measuring eyepiece to measure the diameter of indentation, just one click on eyepiece to get diameter of indentation, easy to operate.

 

Brinell Indenters

The Brinell hardness test method consists of indenting the test material with a 10 mm diameter hardened carbide ball subjected to a load of 3000 kg. For softer materials the load can be reduced to 1500 kg or 500 kg to avoid excessive indentation.
 
The full load is normally applied for 10 to 15 seconds in the case of iron and steel and for at least 30 seconds in the case of other metals. The diameter of the indentation left in the test material is measured with a low powered microscope. The Brinell harness number is calculated by dividing the load applied by the surface area of the indentation.


The diameter of the impression is the average of two readings at right angles and the use of a Brinell hardness number table can simplify the determination of the Brinell hardness.

A well structured Brinell hardness number reveals the test conditions, and looks like this, "75 HB 10/500/30" which means that a Brinell Hardness of 75 was obtained using a 10mm diameter hardened steel with a 500 kilogram load applied for a period of 30 seconds.

On tests of extremely hard metals a tungsten carbide ball is substituted for the steel ball. Compared to the other hardness test methods, the Brinell ball makes the deepest and widest indentation, so the test averages the hardness over a wider amount of material, which will more accurately account for multiple grain structures and any irregularities in the uniformity of the material.

This method is the best for achieving the bulk or macrohardness of a material, particularly those materials with heterogeneous structures. 

Specifications:
Product NameDigital Brinell Hardness Tester
ModelMHBD-3000P
Testing Force62.5Kgf, 100Kgf, 125Kgf, 187.5Kgf, 250Kgf, 500Kgf, 750Kgf, 1000Kgf, 1500Kgf, 3000Kgf
612.9N, 980N, 1226N, 1839N, 2452N, 4900N, 7355N, 9800N, 14700N, 29400N
Testing Range(8~650) HBW
Hardness DisplayLCD screen
Magnification of Microscope20x digital eyepiece
Max. Height Of Specimen220mm
Instrument Throat120mm
Power SupplyAC220V/50Hz;110V/60Hz
Execution StandardISO 6506,ASTM E10 – 12,JIS Z2243,GB/T 231
Accuracy of Brinell Hardness Testing
Hardness RangeRepetition
HBW≤ 125≤ 3.5%
125≤ 3.0%
HBW> 225≤ 2.5%
Standard Delivery:
Standard DeliveryStandard DeliveryStandard Delivery
Instrument Main Body?5mm Ball IndenterPower Cable
20x digital eyepiece?2.5mm Ball IndenterAccessories Box
Hardness Block HBW/3000/10? 200mm Flat AnvilAnti-dust Cover
Hardness Block HBW/750/05? 60mm Flat AnvilLevel Screw
?10mm Ball Indenter? 55mm V-shape AnvilInstrument Manual