About Carbon Steel, Alloy Steel, Spring Steel, and Cast Iron
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About Plastic
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About Tool Steel
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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
- Fabrication: 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 low-strength fasteners, pins, and axles. You can surface harden this material for added wear resistance. All have been manufactured to meet ASTM standards for quality and performance.
Cold-worked rods and discs have a finished look and quality. The cold-working process gives the steel consistent strength, hardness, and dimensions throughout.
Hot-rolled rods and discs are great for forming and fabricating. The steel undergoes less stress in the finishing process and has a little more give, so you can more easily bend and form it. It does however have a rougher surface finish than cold-worked steel.
Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.
1/2 ft. Lg. | |||||||
|---|---|---|---|---|---|---|---|
| Dia. | Dia. Tolerance | Yield Strength, psi  | Fabrication | Hardness | Max. Hardness After Heat Treatment | Specifications Met | |
| 10" | -0.008" to 0" | 54,000 | Cold Worked | Rockwell B70 (Medium) | Rockwell C60 | ASTM A108 | 00000000 |
| Dia. | Dia. Tolerance | Yield Strength, psi | Fabrication | Hardness | Max. Hardness After Heat Treatment | Specifications Met | Pkg. Qty. | Pkg. | |
1/4" Lg. | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 10" | -0.008" to 0" | 54,000 | Cold Worked | Rockwell B70 (Medium) | Rockwell C60 | ASTM A108 | 1 | 00000000 | 000000 |
1/2" Lg. | |||||||||
| 10" | 0" to 0.25" | Not Rated | Hot Rolled | Rockwell B65 (Medium) | Not Rated | ASTM A576 | 1 | 00000000 | 00000 |
3/4" Lg. | |||||||||
| 10" | 0" to 0.25" | 32,000 | Hot Rolled | Rockwell B65 (Medium) | Not Rated | ASTM A576 | 1 | 00000000 | 00000 |
1" Lg. | |||||||||
| 10" | 0" to 0.25" | Not Rated | Hot Rolled | Rockwell B65 (Medium) | Not Rated | ASTM A576 | 1 | 00000000 | 00000 |
1 1/2" Lg. | |||||||||
| 10" | -0.008" to 0" | 54,000 | Cold Worked | Rockwell B70 (Medium) | Rockwell C60 | ASTM A108 | 1 | 00000000 | 000000 |
2" Lg. | |||||||||
| 10" | 0" to 0.25" | 32,000 | Hot Rolled | Rockwell B65 (Medium) | Not Rated | ASTM A576 | 1 | 00000000 | 000000 |
3" Lg. | |||||||||
| 10" | 0" to 0.25" | Not Rated | Hot Rolled | Rockwell B65 (Medium) | Not Rated | ASTM A576 | 1 | 00000000 | 000000 |
Oversized Easy-to-Machine Gray Cast Iron Rods and Discs
- Yield Strength: Not Rated
- Hardness: Rockwell C20 (Hard)
- Heat Treatable: Yes
- Max. Hardness After Heat Treatment: Rockwell C50
- Specifications Met: ASTM A247
An oversized diameter allows for finishing to your exact requirements. Gray cast iron machines faster with less wear on cutting tools than most types of steel. It also absorbs vibration, so finished parts run quieter than those made of steel. It's often used for gears, pulleys, rollers, and bushings.
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 ORDER HISTORY after your order ships.
Impact-Resistant Ductile Cast Iron Rods and Discs
- Yield Strength: 55,000 psi
- Hardness: Rockwell C20 (Hard)
- Heat Treatable: Yes
- Max. Hardness After Heat Treatment: Rockwell C60
- Specifications Met: ASTM A536
Ductile cast iron is strong, resilient, and able to handle repeated stress without breaking. It also absorbs vibration, so finished parts run quieter than those made of steel.
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 ORDER HISTORY after your order ships.
Hardened Easy-to-Machine P20 Tool Steel
- Yield Strength: 101,000 psi
- Hardness: Rockwell C25 (Hard)
Furnished hardened, P20 tool steel is strong and easy to machine. It has the wear resistance and highly polishable surface needed to fabricate long-lasting molds and dies.
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 ORDER HISTORY after your order ships.
| Dia. | Dia. Tolerance | Mechanical Finish | Straightness Tolerance | Each | |
1/2" Lg. | |||||
|---|---|---|---|---|---|
| 10" | 0.1" to 0.125" | Unfinished | 3/16" per ft. | 0000000 | 0000000 |
1" Lg. | |||||
| 10" | 0.1" to 0.125" | Unfinished | 3/16" per ft. | 0000000 | 000000 |
1 1/2" Lg. | |||||
| 10" | 0.1" to 0.125" | Unfinished | 3/16" per ft. | 0000000 | 000000 |
2 1/2" Lg. | |||||
| 10" | 0.1" to 0.125" | Unfinished | 3/16" per ft. | 0000000 | 000000 |
4" Lg. | |||||
| 10" | 0.1" to 0.125" | Unfinished | 3/16" per ft. | 0000000 | 000000 |
6" Lg. | |||||
| 10" | 0.1" to 0.125" | Unfinished | 3/16" per ft. | 0000000 | 00000000 |
Multipurpose 6061 Aluminum Rods and Discs
- Yield Strength: 35,000 psi
- Hardness:
Foot and inch sizes: Brinell 95 (Soft)
Metric sizes: Brinell 80 (Soft) - Temper: See table
- Fabrication: See table
- Specifications Met:
Cold Worked: ASTM B211
Extruded: ASTM B221
Cold Rolled: ASTM B209
The most widely used aluminum, 6061 is fabricated into everything from pipe fittings and containers to automotive and aerospace parts. It is strong and corrosion resistant, plus it's easy to machine and weld.
If you don't see the size you're looking for, please specify a length under additional rod lengths.
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 ORDER HISTORY after your order ships.
Tight-Tolerance Multipurpose 6061 Aluminum Rods and Discs
These rods and discs are precision ground to offer tighter tolerances than standard 6061 rods and discs. The most widely used aluminum, 6061 is fabricated into everything from pipe fittings and containers to automotive and aerospace parts. It is strong and corrosion resistant, plus it's easy to machine and weld.
Discs are consistently flat on the top and bottom, so they're ready for use in your CNC machine. They're also known as blanks.
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 ORDER HISTORY after your order ships.
- Yield Strength: 35,000 psi
- Hardness: Brinell 95 (Soft)
- Temper: T6511
- Fabrication : Extruded
- Specifications Met: ASTM B221
Easy-to-Machine MIC6 Cast Aluminum Discs
- Yield Strength: 15,000 psi
- Hardness: Brinell 65 (Soft)
- Temper: Not Rated
- Fabrication: Cast
MIC6 is cast from a high-strength 7000-series aluminum, then stress relieved to maintain dimensional stability during high-speed machining. Use these discs for CNC routing tables, assembly jigs, vacuum chucks, and other applications where consistent flatness and tight tolerances are critical.
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 ORDER HISTORY after your order ships.
Wear-Resistant Easy-to-Machine Delrin® Acetal Resin Rods and Discs
Because these naturally slippery, wear-resistant rods and discs resist expanding when exposed to heat and moisture, they can be easily machined to close tolerances. They are a good choice for parts that require precision, such as gears, bushings, and bearings. Delrin® acetal resin is also known as acetal homopolymer; it is stronger and stiffer than acetal copolymer.
For technical drawings and 3-D models, click on a part number.
- Color: White or Black
- Temperature Range: -20° to 180° F
- Tensile Strength: 10,000-11,000 psi (Good)
- Impact Strength: 1-1.5 ft.-lbs./in. (Poor)
- Hardness: Rockwell R120-R122 (Hard)
- For Use Outdoors: No
- Specifications Met:
White: ASTM D6100, FDA Compliant 21 CFR 177.2480, NSF/ANSI 51; NSF/ANSI 61
Black: ASTM D6100
Wear-Resistant Easy-to-Machine Acetal Rods and Discs
- Color: White or Black
- Temperature Range: -20° to 180° F
- Tensile Strength: 9,135-9,700 psi (Good)
- Impact Strength: 1-1.5 ft.-lbs./in. (Poor)
- Hardness: Rockwell R120 (Hard)
- For Use Outdoors: No
- Specifications Met: FDA Compliant 21 CFR 176.170, FDA Compliant 21 CFR 177.2470, UL 94 HB
Made of naturally slippery acetal copolymer, these rods and discs are an economical alternative to Delrin® acetal resin. They offer similar wear resistance and are equally resistant to expanding when exposed to heat and moisture. They can be machined to close tolerances and are often used to make precision gears, bushing, bearings, and rollers.
For technical drawings and 3-D models, click on a part number.
MDS-Filled Easy-to-Machine Wear-Resistant Cast Nylon Rods and Discs
- Color: Black
- Max. Temperature: 230° F
- Tensile Strength: 10,000 psi (Good)
- Impact Strength: 1.4 ft.-lbs./in. (Poor)
- Hardness: Rockwell R110 (Hard)
- For Use Outdoors: Yes
- Specifications Met: ASTM D5989
An MDS additive provides exceptional wear resistance as well as a self-lubricating surface. Made of cast nylon 6, they’re easier to machine than other MDS-filled nylon rods and discs, plus they are better electrical insulators. Use them to fabricate gears, sprockets, wear strips, and other high-friction parts. This material is comparable to Nylatron and Nycast.
For technical drawings and 3-D models, click on a part number.
Easy-to-Machine Wear-Resistant Cast Nylon Rods and Discs
- Color: Off-White
- Temperature Range: -20° to 200° F
- Tensile Strength: 10,000 psi (Good)
- Impact Strength: 1.5 ft.-lbs./in. (Poor)
- Hardness: Rockwell R110-R115 (Hard)
- For Use Outdoors: No
- Specifications Met: ASTM D5989, FDA Compliant 21 CFR 177.1500, UL 94 HB
Because these cast nylon 6 rods and discs are easier to machine than standard nylon 6/6, they’re often made into pulleys, screws, bushings, and bearings. They’re also better electrical insulators. They have a wear-resistant, slippery surface that reduces friction. This material is comparable to Nylatron and Nycast.
For technical drawings and 3-D models, click on a part number.
Slippery UHMW Polyethylene Rods and Discs
- Color: White
- Temperature Range: -40° to 180° F
- Tensile Strength: 4,350-5,800 psi (Poor)
- Impact Strength: 16.8 ft.-lbs./in. (Excellent)
- Hardness: Durometer 65D-67D (Medium)
- For Use Outdoors: No
Offering a low-friction surface that prevents sticking and binding, these rods and discs are often machined into bushings and bearings. UHMW is impact and wear resistant to handle the scuffs, scrapes, and strikes that other plastics can’t.
For technical drawings and 3-D models, click on a part number.
Pressure-Rated Borosilicate Glass Discs
- Color: Clear
- Max. Temperature: See table
- Fabrication: See table
Commonly used as sight glass. Also called Pyrex and Schott glass, borosilicate glass resists clouding and pitting and is highly chemical and heat resistant. With a low rate of thermal expansion, it stays dimensionally stable during changes in temperature.
Tempered glass is stronger than annealed glass.
For technical drawings and 3-D models, click on a part number.
| Dia. | Dia. Tolerance | Lg. | Lg. Tolerance | Max. Pressure, psi | Max. Temperature, °F | Edge Fabrication | Specifications Met | Each | |
Tempered Glass | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 10" | -0.015" to 0.015" | 3/4" | -0.031" to 0.031" | 85 | 500° | Ground | MIL-G-2860 | 0000000 | 0000000 |