NextGen Telebrineller Brinell Hardness Testing System

Trust
  • NextGen Telebrineller Brinell Hardness Testing System
  • NextGen Telebrineller Brinell Hardness Testing System
  • NextGen Telebrineller Brinell Hardness Testing System

Description

Telebrineller - Measuring Brinell Hardness anywhere in the field, the plant or the laboratory.

A test bar of known BHN (Brinell Hardness Number),approximating the hardness of the specimen to be tested, is selected. Consistent accuracy is maintained when the test bar BHN is within + or -15% of the specimen BHN and is of the same general material. (Testing non-ferrous materials with carbon steel bars causes impact errors that must be compensated for by applying correction factors to the test results.) The test bar is inserted into the Telebrineller instrument and the instrument placed upon the specimen.

The Telebrineller instrument is complete with test bar(1), the anvil (2), encased in a soft molded rubber head (3),rests on the test bar. The rubber head and a similar resting block (4), provide non-skid footing. Below the test bar, a steel impression ball (5), secured in the base of the rubber head, is in contact with both the test bar and the specimen. The anvil is struck sharply with a two to five pound hammer. The impact, regardless of force, is transmitted equally to the test bar and, through the impression ball to the specimen metal (6),making impressions in both. The diameters of the resulting impressions are directly related to the respective hardness of the test bar and the specimen. A spacing bar (7), operated by a spring catch and button, adjusts the test bar to a clear area for each test.

Accuracy

Standard Telebrineller Test Bars are guaranteed to have a uniform hardness within plus or minus 2% of the BHN etched on the end of the bar. They are made of various alloys of carbon steel and finish ground to 9/16" square.

The diameters of the impressions are then measured and converted to BrinellHardness Numbers using a Brinell manual or automatic microscope. Automated microscopes such as the GenScope are computerized and calibrated systems in which the accuracy is traceable to the National Institute of Standards. The resulting Brinell HardnessNumbers are rounded to the nearest standard BHN occurring at a .05mm interval in TableI of ASTM Standard E10 and this BHN is etched on the end of the bar.

Please note the accuracy of any test made with the Telebrineller is dependent upon the relative hardness of the test bar and the test piece. When the Telebrineller is properly used, accuracy of ± 5% is consistently attainable, provided that the BHN of the test bar does not differ from the BHN of the test piece by more than 15%.

Test Bars

The test bars which are the core of this system are calibrated to a uniform hardness of ± 2% of the labeled BHN. Hardness of the bars is measured by equipment whose accuracy is certified traceable to theNational Standards Institute.Readings may be made within .05 millimeters.

Telebrineller Hardness Test Bars (BHN Values)
627 477 388 321 269 229 194 160 135 114
578 461 375 311 262 223 188 156 131 111
555 444 363 302 255 217 182 151 127 111
534 429 352 293 248 212 176 147 124 109
514 415 341 285 241 207 170 142 121 106
495 401 331 277 235 200 165 138 117  

telebrineller parts

Item # Description of Part Part No.
Ass'y Telebrineller Bar Holder Assembly 239-35
1 Anvil 239-17
2 Rubber Front Piece 239-18
3 Test Bar  
4 Impression Ball - Standard 239-14
5 Impression Ball - Tungsten Carbide 239-29
6 Spacer Button 239-19
7 Spacer Block 239-10
8 Spacer Spring 239-12
9 Rubber Rear Piece 239-11
10 Bar Tube 239-16
Not Shown Flashlight (LED) 239-37
Computer 239-34
Calculation & Record Pad (25 Sheets) 239-33
Carrying Case 239-20
Calibration Disk 239-31

Halteman File Tester

Halteman File tester

The Halteman File tester is designed for the Brinell hardness testing of fillet welds and other hard to reach areas. It is used in conjunction with the Telebrineller. For easier handling, it is recommended that the standard Telebrineller Test Bars be cut in half. Impressions can be measured by using the 5/8" diameter end of the microscope nose piece.

Request Quote

FAQs

Yes! There are five bars included of your selected hardness. Simply inform us of your desired hardness values upon ordering your main unit and we will be happy to include them with your purchase!

We strongly recommend to purchase our calibration disc for checking the calibration of your microscope. Your telebrineller hardness testing system does not require calibration itself.

If you plan to perform a lot of tests, we strongly recommend purchasing additional impression balls. Over time, the ball can deform and cause out of round impressions. The calibration disc for checking your microscope is also a key component to making sure your telebrineller Brinell portable hardness tester is functioning accurately.

Absolutely! If you accompany your portable Brinell tester with the halteman filletester, you will be able to test fillet welds and other hard to reach areas.

The standard telebrineller test bars are guaranteed to have a uniform hardness within plus or minus 2% of the BHN etched on the end of the bar. By following the National Institute of Standards (NIST), we ensure every brinell steel test bar is prepared to provide only the most accurate results on your portable brinell hardness testing.

The use of the telebrineller hardness testing system is quite simple. The principle is to use a test bar of known hardness that is plus or minus 15% of your expected hardness value. The test bar is inserted into the cost effective portable hardness tester and the unit is placed on your specimen. Below the test bar sits an impression ball. The operator will strike the anvil with a hammer to indent both the specimen and the test bar. Using the microscope, you can then measure the diameter of indentation left on your specimen and compare it on the included chart to find your BHN brinell hardness value.

Each certified test bar typically allows 20 test indentations per side - giving you a total of 80 tests per bar. The spring loaded mechanism will adjust your test bar to a new location after you perform a test. This ensures your cheap telebrineller hardness tester is ready for its next test right away!

Related Products

NG - LeebGen 3000 - Leeb Rebound Portable Hardness Tester

NG - LeebGen 3000 - Leeb Rebound Portable Hardness Tester

LeebGen3000 is a non-destructive precision metal hardness tester developed according to the latest industry standards. LeebGen 3000 is equipped with features which provide the instrument with a combination of a user-friendly interface and exceptional test result accuracy. This in turn allows for ease of operation and an accurate conversion display of virtually any metal hardness testing value.

Read more

Ultrasonic Contact Impedance Hardness Tester - UH200

Ultrasonic Contact Impedance Hardness Tester - UH200

Welcome to our most advanced and cost-effective Ultrasonic Hardness Testing System. This portable machine is all you need and more!

Read more

Surface Roughness Testers

Surface Roughness Testers

High accuracy surface roughness testing systems for material surface analysis and statistical processing of data. Multiple model variations to help fit your technical and budgetary expectations.

Read more

Hardness Test Blocks, Indenters and Hardness Testing Accessories

Hardness Test Blocks, Indenters and Hardness Testing Accessories

Certified Test Blocks are a requirement as a reference material for any type of hardness testing. At NextGen, we understand the importance of a Test Block to ensure the accuracy of your hardness testing procedures.

Read more

Metallography Consumables

Metallography Consumables

Learn about the full scope of NextGen's cutting, polishing & grinding, mounting and etching metallography consumables. Our consumables are compatible with virtually all global brands, offering a rare combination of exceptional quality, longevity and affordability.

Read more