Brinell Hardness Tester 3000

This machine is designed to measure the hardness of castings, forgings, other metals and alloys of all kinds. The brinell 3000  is designed for high load Brinell Hardness measurement on steel & other ferrous materials & also on non-ferrous materials like Brass, Bronze, Aluminium, etc. The material can be cast, forged or rolled & the shape can be flat, round or irregular. This machine is specially used in production testing. Its stability & unique design of a floating fulcrum lever system ensure high accuracy & dependability. 
The load application system is of dead weight type combined with mechanical lever system. The supporting hydraulic system is for initial lifting of load before each test & damping the load application system for smooth application of load. Test loads from 500 to 3000 kgf in steps of 250kgf. The height X Throat is 380 X 200 mm. Indentation measurement by Brinell Microscope of 25 X Magnification. Special Test fixtures for odd jobs / production testing can be supplied (Optional) Computerized Brinell Impression measurement system is available (Optional) Manual / Optical / Computerized type Brinell Hardness testing machines are also available. 
Accuracy conforms to ISO 6506 and ASTM E10.

The Brinell test is widely used for release test purposes as it provides a quick macro-scale indication of hardness, which can be performed on a ground surface. The test uses a 5 or 10mm diameter spherical indenter made from tungsten carbide, Figure 1.

(N.B. Until recently steel ball indenters were also used, but these are not permitted by the current British Standard.)

A load of 500-3000kgf is applied for 10-30s and the diameter of the resulting impression is measured. Two measurements of the diameter of the impression in mm are made at right angles and the average, d, taken. Measurements are generally made using a microscope, but automatic measuring systems may be found on more modern testing equipment.

The hardness is defined as the average force per unit area of the impression. So for a softer material a deeper impression with a larger surface area will be produced, so the hardness number will be lower.

For a ball diameter of D mm, and an applied load of P kgf the hardness is given by: 
Minimum Specimen Thickness

The minimum specimen thickness is 10 times the impression depth which is given by: 
The minimum specimen thickness for a 3,000kgf load and a 10mm diameter indenter is shown in Figure 2.

Spacing of Indents

The distance of the centre of an indent to the specimen edge or the spacing between indents should be at least 3 times the specimen diameter.

Reporting of Results

The test report shall include:

Reference to the testing standard – BS EN ISO 6506, ASTM E10 
All details necessary for the complete identification of the test piece 
The test temperature if not within the range 10 – 35°C 
The result

Special Test fixtures for odd jobs / production testing can be supplied (Optional)

• Computerized Brinell Impression measurement system is available (Optional)
• Manual / Optical / Computerized type Brinell Hardness testing machines are also available.
• We can offer loads 187.5, 250, 500,1000 upto 3000 in the steps of 250kgf indenter.This machine specification includes Ball Indenter 2.5,5 & 10mm with Tungsten Carbide Ball.
• Full load dwell - Since the load removal is by hand operated level you can do unloading by operating lever by hand after 10 to 15 sec after full load application mentioned under point: 4. Hence this point is also comply by our machine. 6. Optical measuring system: In our above mentioned model you can measure all impressions taken with the help of ball indenter 2.5, 5 or 10 with least count 0.01mm that means measurement of 10mm impression is as per type 'A' & measurement of impression of 5mm & 2.5mm is as per type'B'.