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| Rod and Disc | Keyed |
Material Material |
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Fabrication Fabrication |
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Yield Strength Yield Strength |
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Certificate Certificate |
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 | Material Certificate with Traceable Lot Number |
Hardness Rating Hardness Rating |
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Maximum Hardness After Heat Treatment Maximum HardnessAfter Heat Treatment |
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Tolerance Rating Tolerance Rating |
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About Carbon Steel, Alloy Steel, Spring Steel, and Cast Iron
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Low-Carbon Steel Rods and Discs
- Yield Strength: See table
- Hardness: See table
- Heat Treatable: Yes
- Max. Hardness After Heat Treatment: See table
- Specifications Met: See table
Also known as mild steel, low-carbon steel is easy to machine, form, and weld. It's widely fabricated into parts that don’t require high strength, such as fixture clamps, mounting plates, and spacers. This material can be surface hardened with heat treating.
For technical drawings and 3-D models, click on a part number.
Certificates with a traceable lot number are available for these products. Download certificates from ACTIVITY after your order ships.
| Dia. | Dia. Tolerance | Yield Strength, psi | Hardness | Max. Hardness After Heat Treatment | Specifications Met | Each | |
1/2" Lg. | |||||||
|---|---|---|---|---|---|---|---|
| 2" | -0.003" to 0" | 54,000 | Rockwell B70 (Medium) | Rockwell C60 | ASTM A108 | 0000000 | 00000 |
| 2 1/2" | -0.003" to 0" | 54,000 | Rockwell B70 (Medium) | Not Rated | __ | 00000000 | 0000 |
| 3" | -0.004" to 0" | 54,000 | Rockwell B70 (Medium) | Rockwell C60 | ASTM A108 | 0000000 | 0000 |
| 3 1/2" | -0.004" to 0" | 54,000 | Rockwell B70 (Medium) | Not Rated | __ | 00000000 | 0000 |
| 4" | -0.004" to 0" | 54,000 | Rockwell B70 (Medium) | Rockwell C60 | ASTM A108 | 0000000 | 00000 |
| 4 1/2" | -0.005" to 0" | 54,000 | Rockwell B70 (Medium) | Not Rated | __ | 00000000 | 00000 |
| 5" | -0.005" to 0" | 54,000 | Rockwell B70 (Medium) | Rockwell C60 | ASTM A108 | 0000000 | 00000 |
| 5 1/2" | -0.005" to 0" | 54,000 | Rockwell B70 (Medium) | Not Rated | __ | 00000000 | 00000 |
| 6" | -0.005" to 0" | 54,000 | Rockwell B70 (Medium) | Rockwell C60 | ASTM A108 | 0000000 | 00000 |
| 6 1/2" | 0" to 0.125" | 36,000 | Rockwell B80 (Medium) | Not Rated | __ | 00000000 | 00000 |
| 7" | 0" to 0.156" | 36,000 | Rockwell B80 (Medium) | Not Rated | __ | 00000000 | 00000 |
| 8" | 0" to 0.156" | 36,000 | Rockwell B80 (Medium) | Not Rated | __ | 00000000 | 00000 |
| 9" | 0" to 0.188" | 36,000 | Rockwell B80 (Medium) | Not Rated | __ | 00000000 | 00000 |
| 10" | 0" to 0.25" | 36,000 | Rockwell B80 (Medium) | Not Rated | __ | 00000000 | 00000 |
1" Lg. | |||||||
| 2" | -0.003" to 0" | 54,000 | Rockwell B70 (Medium) | Rockwell C60 | ASTM A108 | 0000000 | 0000 |
| 2 1/2" | -0.003" to 0" | 54,000 | Rockwell B70 (Medium) | Not Rated | __ | 00000000 | 0000 |
| 3" | -0.004" to 0" | 54,000 | Rockwell B70 (Medium) | Rockwell C60 | ASTM A108 | 0000000 | 0000 |
| 3 1/2" | -0.004" to 0" | 54,000 | Rockwell B70 (Medium) | Not Rated | __ | 00000000 | 00000 |
| 4" | -0.004" to 0" | 54,000 | Rockwell B70 (Medium) | Rockwell C60 | ASTM A108 | 0000000 | 00000 |
| 4 1/2" | -0.005" to 0" | 54,000 | Rockwell B70 (Medium) | Not Rated | __ | 00000000 | 00000 |
| 5" | -0.005" to 0" | 54,000 | Rockwell B70 (Medium) | Rockwell C60 | ASTM A108 | 0000000 | 00000 |
| 5 1/2" | -0.005" to 0" | 54,000 | Rockwell B70 (Medium) | Not Rated | __ | 00000000 | 00000 |
| 6" | -0.005" to 0" | 54,000 | Rockwell B70 (Medium) | Rockwell C60 | ASTM A108 | 0000000 | 00000 |
| 6 1/2" | 0" to 0.125" | 36,000 | Rockwell B80 (Medium) | Not Rated | __ | 00000000 | 00000 |
| 7" | 0" to 0.156" | 36,000 | Rockwell B80 (Medium) | Not Rated | __ | 00000000 | 00000 |
| 8" | 0" to 0.156" | 36,000 | Rockwell B80 (Medium) | Not Rated | __ | 00000000 | 00000 |
| 9" | 0" to 0.188" | 36,000 | Rockwell B80 (Medium) | Not Rated | __ | 00000000 | 00000 |
| 10" | 0" to 0.25" | 36,000 | Rockwell B80 (Medium) | Not Rated | __ | 00000000 | 00000 |
3" Lg. | |||||||
| 2" | -0.003" to 0" | 54,000 | Rockwell B70 (Medium) | Rockwell C60 | ASTM A108 | 0000000 | 00000 |
| 2 1/2" | -0.003" to 0" | 54,000 | Rockwell B70 (Medium) | Not Rated | __ | 00000000 | 00000 |
| 3" | -0.004" to 0" | 54,000 | Rockwell B70 (Medium) | Rockwell C60 | ASTM A108 | 0000000 | 00000 |
| 3 1/2" | -0.004" to 0" | 54,000 | Rockwell B70 (Medium) | Not Rated | __ | 00000000 | 00000 |
| 4" | -0.004" to 0" | 54,000 | Rockwell B70 (Medium) | Rockwell C60 | ASTM A108 | 0000000 | 00000 |
| 4 1/2" | -0.005" to 0" | 54,000 | Rockwell B70 (Medium) | Not Rated | __ | 00000000 | 00000 |
| 5" | -0.005" to 0" | 54,000 | Rockwell B70 (Medium) | Rockwell C60 | ASTM A108 | 0000000 | 00000 |
| 5 1/2" | -0.005" to 0" | 54,000 | Rockwell B70 (Medium) | Not Rated | __ | 00000000 | 00000 |
| 6" | -0.005" to 0" | 54,000 | Rockwell B70 (Medium) | Rockwell C60 | ASTM A108 | 0000000 | 00000 |
| 6 1/2" | 0" to 0.125" | 36,000 | Rockwell B80 (Medium) | Not Rated | __ | 00000000 | 00000 |
| 7" | 0" to 0.156" | 36,000 | Rockwell B80 (Medium) | Not Rated | __ | 00000000 | 000000 |
| 8" | 0" to 0.156" | 36,000 | Rockwell B80 (Medium) | Not Rated | __ | 00000000 | 000000 |
| 9" | 0" to 0.188" | 36,000 | Rockwell B80 (Medium) | Not Rated | __ | 00000000 | 000000 |
| 10" | 0" to 0.25" | 36,000 | Rockwell B80 (Medium) | Not Rated | __ | 00000000 | 000000 |
6" Lg. | |||||||
| 2" | -0.003" to 0" | 54,000 | Rockwell B70 (Medium) | Rockwell C60 | ASTM A108 | 0000000 | 00000 |
| 2 1/2" | -0.003" to 0" | 54,000 | Rockwell B70 (Medium) | Not Rated | __ | 00000000 | 00000 |
| 3" | -0.004" to 0" | 54,000 | Rockwell B70 (Medium) | Rockwell C60 | ASTM A108 | 0000000 | 00000 |
| 3 1/2" | -0.004" to 0" | 54,000 | Rockwell B70 (Medium) | Not Rated | __ | 00000000 | 00000 |
| 4" | -0.004" to 0" | 54,000 | Rockwell B70 (Medium) | Rockwell C60 | ASTM A108 | 0000000 | 00000 |
| 4 1/2" | -0.005" to 0" | 54,000 | Rockwell B70 (Medium) | Not Rated | __ | 00000000 | 000000 |
| 5" | -0.005" to 0" | 54,000 | Rockwell B70 (Medium) | Rockwell C60 | ASTM A108 | 0000000 | 000000 |
| 5 1/2" | -0.005" to 0" | 54,000 | Rockwell B70 (Medium) | Not Rated | __ | 00000000 | 000000 |
| 6" | -0.005" to 0" | 54,000 | Rockwell B70 (Medium) | Rockwell C60 | ASTM A108 | 0000000 | 000000 |
High-Strength 1045 Carbon Steel Rods and Discs
Stronger than low-carbon steel with equally good machinability, 1045 carbon steel is widely used for bolts, studs, and shafts.
Certificates with a traceable lot number are available for these products. Download certificates from ACTIVITY after your order ships.
| Dia. | Dia. Tolerance | Each | |
1/2" Lg. | |||
|---|---|---|---|
| 4" | -0.006" to 0" | 0000000 | 00000 |
| 5" | -0.006" to 0" | 0000000 | 00000 |
| 6" | -0.006" to 0" | 0000000 | 00000 |
1" Lg. | |||
| 2" | -0.006" to 0" | 00000000 | 0000 |
| 3" | -0.006" to 0" | 00000000 | 00000 |
| 4" | -0.006" to 0" | 00000000 | 00000 |
| 5" | -0.006" to 0" | 00000000 | 00000 |
| 6" | -0.006" to 0" | 00000000 | 00000 |
3" Lg. | |||
| 2" | -0.006" to 0" | 00000000 | 00000 |
| 3" | -0.006" to 0" | 00000000 | 00000 |
| 4" | -0.006" to 0" | 00000000 | 00000 |
| 5" | -0.006" to 0" | 00000000 | 00000 |
| 6" | -0.006" to 0" | 00000000 | 00000 |
6" Lg. | |||
| 2" | -0.006" to 0" | 00000000 | 00000 |
| 3" | -0.006" to 0" | 00000000 | 00000 |
| 4" | -0.006" to 0" | 00000000 | 00000 |
| 5" | -0.006" to 0" | 00000000 | 000000 |
| 6" | -0.006" to 0" | 00000000 | 000000 |
9" Lg. | |||
| 2" | -0.006" to 0" | 00000000 | 00000 |
| 3" | -0.006" to 0" | 00000000 | 00000 |
| 4" | -0.006" to 0" | 00000000 | 00000 |
| 5" | -0.006" to 0" | 00000000 | 000000 |
| 6" | -0.006" to 0" | 00000000 | 000000 |
Shims for Keyed Shafts
Precisely shaped to fit snugly on keyed shafts, these shims align, level, and space components. Because of their tight fit, they also help components rotate in unison with the shaft.
Shims with a tab only fit without a key—the tab sits inside the keyway on the keyed shaft.
Carbon steel shims are stronger than stainless steel shims, but shouldn’t be used in wet environments.
For technical drawings and 3-D models, click on a part number.
With Tab—1008-1010 Carbon Steel
Carbon Steel Shim with Tab
Tab | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| For Shaft Dia. | ID | ID Tolerance | OD | OD Tolerance | Wd. | Dp. | Minimum Hardness | Magnetic Properties | Pkg. Qty. | Pkg. | |
0.005" Thick. (-0.0005" to 0.0005" Tolerance) | |||||||||||
| 1" | 1" | 0" to 0.011" | 1 1/2" | -0.005" to 0.005" | 1/4" | 3/32" | Rockwell B84 | Magnetic | 10 | 00000000 | 00000 |
| 1 1/2" | 1 1/2" | 0" to 0.011" | 2 1/8" | -0.005" to 0.005" | 3/8" | 5/32" | Rockwell B84 | Magnetic | 10 | 00000000 | 00000 |
| 2" | 2" | 0" to 0.011" | 2 3/4" | -0.005" to 0.005" | 1/2" | 3/16" | Rockwell B84 | Magnetic | 5 | 00000000 | 0000 |
0.01" Thick. (-0.00075" to 0.00075" Tolerance) | |||||||||||
| 1" | 1" | 0" to 0.011" | 1 1/2" | -0.005" to 0.005" | 1/4" | 3/32" | Rockwell B84 | Magnetic | 10 | 00000000 | 0000 |
| 1 1/2" | 1 1/2" | 0" to 0.011" | 2 1/8" | -0.005" to 0.005" | 3/8" | 5/32" | Rockwell B84 | Magnetic | 10 | 00000000 | 00000 |
| 2" | 2" | 0" to 0.011" | 2 3/4" | -0.005" to 0.005" | 1/2" | 3/16" | Rockwell B84 | Magnetic | 5 | 00000000 | 0000 |
0.015" Thick. (-0.001" to 0.001" Tolerance) | |||||||||||
| 1" | 1" | 0" to 0.011" | 1 1/2" | -0.005" to 0.005" | 1/4" | 3/32" | Rockwell B84 | Magnetic | 10 | 00000000 | 0000 |
| 1 1/2" | 1 1/2" | 0" to 0.011" | 2 1/8" | -0.005" to 0.005" | 3/8" | 5/32" | Rockwell B84 | Magnetic | 10 | 00000000 | 0000 |
| 2" | 2" | 0" to 0.011" | 2 3/4" | -0.005" to 0.005" | 1/2" | 3/16" | Rockwell B84 | Magnetic | 5 | 00000000 | 0000 |
0.02" Thick. (-0.001" to 0.001" Tolerance) | |||||||||||
| 1" | 1" | 0" to 0.011" | 1 1/2" | -0.005" to 0.005" | 1/4" | 3/32" | Rockwell B84 | Magnetic | 10 | 00000000 | 0000 |
| 1 1/2" | 1 1/2" | 0" to 0.011" | 2 1/8" | -0.005" to 0.005" | 3/8" | 5/32" | Rockwell B84 | Magnetic | 10 | 00000000 | 00000 |
| 2" | 2" | 0" to 0.011" | 2 3/4" | -0.005" to 0.005" | 1/2" | 3/16" | Rockwell B84 | Magnetic | 5 | 00000000 | 0000 |
0.031" Thick. (-0.0015" to 0.0015" Tolerance) | |||||||||||
| 1" | 1" | 0" to 0.011" | 1 1/2" | -0.005" to 0.005" | 1/4" | 3/32" | Rockwell B84 | Magnetic | 10 | 00000000 | 0000 |
| 1 1/2" | 1 1/2" | 0" to 0.011" | 2 1/8" | -0.005" to 0.005" | 3/8" | 5/32" | Rockwell B84 | Magnetic | 10 | 00000000 | 00000 |
| 2" | 2" | 0" to 0.011" | 2 3/4" | -0.005" to 0.005" | 1/2" | 3/16" | Rockwell B84 | Magnetic | 5 | 00000000 | 0000 |
0.062" Thick. (-0.0025" to 0.0025" Tolerance) | |||||||||||
| 1" | 1" | 0" to 0.011" | 1 1/2" | -0.005" to 0.005" | 1/4" | 3/32" | Rockwell B84 | Magnetic | 10 | 00000000 | 00000 |
| 1 1/2" | 1 1/2" | 0" to 0.011" | 2 1/8" | -0.005" to 0.005" | 3/8" | 5/32" | Rockwell B84 | Magnetic | 5 | 00000000 | 0000 |
| 2" | 2" | 0" to 0.011" | 2 3/4" | -0.005" to 0.005" | 1/2" | 3/16" | Rockwell B84 | Magnetic | 5 | 00000000 | 0000 |
1/8" Thick. (-0.003" to 0.003" Tolerance) | |||||||||||
| 1" | 1" | 0" to 0.011" | 1 1/2" | -0.005" to 0.005" | 1/4" | 3/32" | Rockwell B84 | Magnetic | 5 | 00000000 | 0000 |
| 1 1/2" | 1 1/2" | 0" to 0.011" | 2 1/8" | -0.005" to 0.005" | 3/8" | 5/32" | Rockwell B84 | Magnetic | 5 | 00000000 | 00000 |
| 2" | 2" | 0" to 0.011" | 2 3/4" | -0.005" to 0.005" | 1/2" | 3/16" | Rockwell B84 | Magnetic | 1 | 00000000 | 0000 |