DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement)  |
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Hardness Hardness |
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For Use On For Use On |
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RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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Measures Measures |
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REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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Specifications Met Specifications Met |
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About Plastic and Rubber Tubing
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About Rubber
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Durometer Hardness Sample Packs
This pack includes one ring- or oval-shaped piece of rubber for each of the durometers listed in the table. The durometers range from extra soft to extra hard.
For technical drawings and 3-D models, click on a part number.
| Durometer | Thick. Range | Pkg. | |
| 30A, 30OO, 40A, 40OO, 50A, 50OO, 60A, 60OO, 70A, 70OO, 75D, 80A, 90A, 95A | 1/8" to 3/16" | 000000 | 000000 |
Durometer Hardness Testers
Measure the hardness of flat materials, such as plastic, rubber, and laminate. For more information about durometer scales, please see the bottom of About Rubber.
Style 1 testers can be held in your hand or mounted to a stand with the included knob.
Style 2 testers have a narrow base for access to confined areas. They can be held in your hand or mounted to a stand with the included knob.
Style 3 testers come with a calibration certificate traceable to NIST that states they've passed a test for accuracy.
Testers with maximum-reading indicator hold the highest reading until reset.
| For Durometer Hardness Scale | Hardness Measuring Range | Measuring Increments | Accuracy | Ht. | Wd. | Dp. | Dia. | Min. Material Thick. | Specifications Met | Features | Each | |
For Use On Plastic, Rubber, Laminate | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Style 1 | ||||||||||||
| A | 0-100 | 1 | ±1 | 4" | 2 1/4" | 1 3/4" | __ | 1/4" | ASTM D2240 | Maximum-Reading Indicator | 000000 | 000000000 |
| D | 0-100 | 1 | ±1 | 4" | 2 1/4" | 1 3/4" | __ | 1/4" | ASTM D2240 | Maximum-Reading Indicator | 000000 | 00000000 |
Style 2 | ||||||||||||
| A | 0-100 | 1 | ±1 | 4" | 2 1/4" | 1 3/4" | __ | 1/4" | ASTM D2240 | Maximum-Reading Indicator | 00000000 | 00000000 |
| D | 0-100 | 1 | ±1 | 4" | 2 1/4" | 1 3/4" | __ | 1/4" | ASTM D2240 | Maximum-Reading Indicator | 00000000 | 00000000 |
| O | 0-100 | 1 | ±1 | 4" | 2 1/4" | 1 3/4" | __ | 1/4" | ASTM D2240 | Maximum-Reading Indicator | 00000000 | 00000000 |
| OO | 0-100 | 1 | ±2 | 4" | 2 1/4" | 1 3/4" | __ | 1/4" | ASTM D2240 | __ | 00000000 | 00000000 |
Style 3 | ||||||||||||
| A | 0-100 | 1 | ±1 | 6 1/8" | 2 1/4" | 1" | __ | 1/4" | ASTM D2240 | __ | 00000000 | 000000 |
| D | 0-100 | 1 | ±1 | 6 1/8" | 2 1/4" | 1" | __ | 1/4" | ASTM D2240 | __ | 00000000 | 000000 |
| O | 0-100 | 1 | ±1 | 6 1/8" | 2 1/4" | 1" | __ | 1/4" | ASTM D2240 | __ | 00000000 | 000000 |
| OO | 0-100 | 1 | ±2 | 6 1/8" | 2 1/4" | 1" | __ | 1/4" | ASTM D2240 | __ | 00000000 | 000000 |
Style 4 | ||||||||||||
| A | 0-100 | 1 | ±1 | 4 1/2" | __ | __ | 1/2" | 1/4" | __ | Maximum-Reading Indicator | 00000000 | 000000 |
| D | 0-100 | 1 | ±1 | 4 1/2" | __ | __ | 1/2" | 1/4" | __ | Maximum-Reading Indicator | 00000000 | 000000 |
| Test Blocks for Durometer A Hardness—Seven 2" x 2" Test Blocks (Durometer 30A-90A) | 0000000 | Each | 0000000 |
Digital Durometer Hardness Testers
Measure the hardness of flat materials, such as plastic, rubber, and laminate. For more information about durometer scales, please see the bottom of About Rubber.
These testers come with a calibration certificate traceable to NIST that states they’ve passed a test for accuracy. A maximum-reading indicator holds the highest reading until reset. Use the USB/RS-232 port for direct connection to your PC.
| For Durometer Hardness Scale | Hardness Measuring Range | Measuring Increments | Accuracy | Ht. | Wd. | Dp. | Min. Material Thick. | Max. Display Rotation Angle | Batteries Included | Specifications Met | Features | Each | |
For Use On Plastic, Rubber, Laminate | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| A | 0-100 | 1 | ±1% | 6 1/8" | 2 1/2" | 1 5/8" | 1/4" | 270° | Yes | ASTM D2240 | Maximum-Reading Indicator, Tolerance-Setting High/Low Buttons, USB and RS-232 Connectivity | 00000000 | 000000000 |
| D | 0-100 | 1 | ±1% | 6 1/8" | 2 1/2" | 1 5/8" | 1/4" | 270° | Yes | ASTM D2240 | Maximum-Reading Indicator, Tolerance-Setting High/Low Buttons, USB and RS-232 Connectivity | 00000000 | 00000000 |
| Test Blocks for Durometer A Hardness—Seven 2" x 2" Test Blocks (Durometer 30A-90A) | 0000000 | Each | 0000000 |
Rockwell Hardness Calibration Test Blocks
Make sure your hardness testers are accurately calibrated. Blocks are marked with their corresponding Rockwell hardness and a serial number.
All blocks come with a calibration certificate traceable to NIST that states they've passed a test for accuracy.
Rockwell Hardness Testing File Sets
Set includes six files and a chart to convert to Vickers scale. It is an economical way to determine the hardness of steel on the Rockwell C-scale. Handles are marked with Rockwell hardness values. If a file can scratch your material, then your material is softer than the file. If a file cannot scratch your material, then your material is harder than the file.
| Includes | Material | Tip Shape | Each | |
For Use On Steel | ||||
|---|---|---|---|---|
| Rockwell C40 File, Rockwell C45 File, Rockwell C50 File, Rockwell C55 File, Rockwell C60 File, Rockwell C65 File, Vickers Scale Conversion Chart | Steel | Curved | 00000000 | 0000000 |
Rockwell Hardness Testing Files
An economical way to determine the hardness of steel on the Rockwell C-scale. Handles are marked with Rockwell hardness values. If a file can scratch your material, then your material is softer than the file. If a file cannot scratch your material, then your material is harder than the file.
| For Rockwell Hardness Scale | Material | Tip Shape | Choose a Hardness | Each | |
For Use On Steel | |||||
|---|---|---|---|---|---|
| C | Steel | Curved | 00000000 | 000000 | |
Pressure-Grip Rockwell Hardness Testers
Operate these testers with one hand. Squeeze the handles until the penetrator contacts the test material and a reading appears on the dial indicator.
Throat | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| For Rockwell Hardness Scale | Hardness Measuring Range | Measuring Increments | Accuracy | Lg. | Ht. | Width | Ht. | Dp. | For Max. Material Thick. | Includes | Each | |
For Use On Aluminum, Brass, Low-Carbon Steel | ||||||||||||
| B | 20-100 | 4 | ±1 | 8" | 3" | 1" | 3/8" | 1" | 1/4" | Extra Indenter, Test Strip | 0000000 | 000000000 |
For Use On Aluminum | ||||||||||||
| E | 25-110 | 4.25 | ±1 | 8" | 3" | 1" | 3/8" | 1" | 1/4" | Extra Indenter, Test Strip | 0000000 | 00000000 |
Small Spot Rockwell Hardness Testers
A microscope measures the indentation made by a small diameter ball penetrator to provide a hardness reading.
Ball Indenter | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| For Rockwell Hardness Scale | Hardness Measuring Range | Accuracy | Ht. | Dia. | Material | Dia. | Batteries Included | Includes | Each | |
For Use On Alloy Steel | ||||||||||
| C | 20-65 | ±1.5 | 7 1/2" | 7/8" | Carbide | 1/16" | Yes | 60X Illuminated Microscope with Calibrated Scale | 0000000 | 000000000 |
Rockwell Hardness Testers
This tester uses an indenter to measure the hardness of aluminum, brass, and steel. It can be used at any angle without affecting accuracy.
For heat-treated material harder than Rockwell C20, use the optional C-scale diamond indenter.
Throat | Ball Indenter | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| For Rockwell Hardness Scale | Hardness Measuring Range | Measuring Increments | Accuracy | Ht. | Wd. | Dp. | Ht. | Dp. | Dial Dia. | Material | Dia. | Includes | Specifications Met | Each | |
For Use On Aluminum, Brass, Alloy Steel, Low-Carbon Steel | |||||||||||||||
| A, B, C, D, E, F, G, H, K | 0-100 | 1 | ±1.5 | 11" | 8" | 1 1/2" | 4 1/2" | 2 1/4" | 2 1/4" | Carbide | 1/16" | Three Anvils (Convex, V, Flat) | ASTM E110 | 0000000 | 000000000 |
| Optional C-Scale Diamond Indenter | 0000000 | Each | 0000000 |
Individual Test Bars for Brinell Hardness Testers
| Accuracy | Lg. | Ht. | Wd. | Choose a Hardness | Each | |
| ±2 | 6" | 9/16" | 9/16" | Brinell 106, Brinell 111, Brinell 114, Brinell 117, Brinell 121, Brinell 124, Brinell 127, Brinell 131, Brinell 135, Brinell 138, Brinell 142, Brinell 147, Brinell 151, Brinell 156, Brinell 160, Brinell 165, Brinell 170, Brinell 176, Brinell 182, Brinell 188, Brinell 194, Brinell 200, Brinell 207, Brinell 212, Brinell 217, Brinell 223, Brinell 229, Brinell 235, Brinell 241, Brinell 248, Brinell 255, Brinell 262, Brinell 269, Brinell 277, Brinell 285, Brinell 293, Brinell 302, Brinell 311, Brinell 321, Brinell 331, Brinell 341, Brinell 352, Brinell 363, Brinell 375, Brinell 388, Brinell 401, Brinell 415, Brinell 429, Brinell 444, Brinell 461, Brinell 477, Brinell 495, Brinell 514, Brinell 534, Brinell 578 | 000000 | 000000 |
Brinell Hardness Testers
Determine the hardness of very hard steel. To use, slide a test bar into the tester, place the tester on your surface, and hit with a hammer; a steel ball will make an impression. Measure the impression with the 20X microscope and use the computing disc to determine hardness.
Scratch-Resistance Testers
Determine the relative hardness of resins, film, lacquer, and paint by testing their resistance to scratches by graphite pencils. The pencils are calibrated to specific lead grades for hardness. The lowest hardness value of the pencil that mars the material is the material’s relative hardness. Flatten the tip of the pencil lead with the included 400 grit sandpaper, then insert the pencil into the tester. As you push the tester over your material, the pencil is dragged across the surface at a constant pressure. These testers are often used in the development of synthetic resins. They meet ASTM D3363 for testing the hardness of coatings.
Testers | Replacement Pencils | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Lead Grade | Lg. | Wd. | Ht. | Material | Weight, g | Includes | Specifications Met | Features | Each | Each | ||
For Use On Film, Lacquer, Paint, Resin | ||||||||||||
| 9B, 8B, 7B, 6B, 5B, 4B, 3B, 2B, B, HB, F, H, 2H, 3H, 4H, 5H, 6H, 7H, 8H, 9H | 4" | 2" | 2" | Steel | 750 | 20 Pencils (1 of each grade), Pencil Sharpener, Plastic Carrying Case, Sandpaper | ASTM D3363 | Level | 0000000 | 0000000 | 0000000 | 000000 |
Plastic and Rubber Tubing Hardness Sample Packs
Packs contain nine pieces of tubing, each labeled with its hardness.
| Includes | Pkg. Qty. | Pkg. | |
| One 3" long piece each of Durometer 35A, 40A, 55A, 65A, 74A, 85A, 43-55D, 65D, and Rockwell R120 tubing | 9 | 000000 | 000000 |