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Shape Shape |
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 | Rod and Disc |
Appearance Appearance |
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Hardness Hardness |
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Low-Carbon Steel Grade Low-Carbon Steel Grade |
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Fabrication Fabrication |
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Tolerance Rating Tolerance Rating |
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Yield Strength Yield Strength |
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Specifications Met Specifications Met |
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Maximum Temperature Maximum Temperature |
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Minimum Temperature Minimum Temperature |
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Maximum Hardness After Heat Treatment Maximum HardnessAfter Heat Treatment |
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Mechanical Finish Mechanical Finish |
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Heat Treatment Heat Treatment |
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Certificate Certificate |
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 | Material Certificate with Traceable Lot Number |
Aluminum Performance Properties Aluminum PerformanceProperties |
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About Copper, Brass, and Bronze
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About Aluminum
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About Tool Steel
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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.
Tight-Tolerance Ultra-Machinable
12L14 Carbon Steel Rods
- Yield Strength: 65,000 psi
- Hardness: Rockwell B80 (Medium)
- Heat Treatable: Yes
- Max. Hardness After Heat Treatment: Rockwell C65
- Specifications Met: ASTM A108
Ready for turning in a lathe, these rods are precision ground and held to a strict straightness tolerance. The lead additive acts as a lubricant, which allows 12L14 carbon steel to withstand very fast machining. It's used to fabricate a wide variety of machine parts.
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.
Tight-Tolerance Multipurpose 4140 Alloy Steel Rods
- Yield Strength: 60,000 psi
- Hardness: Rockwell B90 (Medium)
- Heat Treatable: Yes
- Max. Hardness After Heat Treatment: Rockwell C60
- Specifications Met: ASTM A108
Ready for turning in your lathe, these rods are precision ground and held to a strict straightness tolerance. Also known as chrome-moly steel, this versatile 4140 alloy steel is used for a wide range of parts, such as gears, axles, shafts, collets, and die holders. It resists fracturing from repeated stress.
For technical drawings and 3-D models, click on a part number.
Multipurpose 4140 Alloy Steel Rods and Discs
- Yield Strength: 60,000 psi
- Hardness: Rockwell C10 (Medium)
- Heat Treatable: Yes
- Max. Hardness After Heat Treatment: Not Rated
- Specifications Met: ASTM A108, ASTM A29
Also known as chrome-moly steel, this versatile 4140 alloy steel is used for a wide range of parts, such as gears, axles, shafts, collets, and die holders. It resists fracturing from repeated stress.
Multipurpose 110 Copper Rods and Discs
- Yield Strength:
Inch sizes: Not Rated
Metric sizes: 17,000 psi - Hardness:
Inch sizes: Rockwell F65 (Soft)
Metric sizes: Brinell 35 (Soft) - Temper:
Inch sizes: H04 (Full Hard)
Metric sizes: Not Rated - Heat Treatable: No
- Specifications Met:
Inch sizes: ASTM B187
Metric sizes: European Standard EN 13601
Offering high electrical conductivity and formability, 110 copper is 99.9% pure. Also known as ETP copper, it's often used in electrical applications, such as for bus bars and wire connectors, as well as for flashing, gaskets, and rivets.
1 m Lg. | |||
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| Dia., mm | Dia. Tolerance Range , mm | Each | |
| 5 | -0.11 to 0.11 | 0000000 | 000000 |
Ultra-Machinable 360 Brass Rods and Discs
- Yield Strength:
Inch sizes: 15,000 psi
Metric sizes: 23,000 psi - Hardness: See table
- Temper:
Inch sizes: H02 (1/2 Hard)
Metric sizes: 1/2 Hard - Heat Treatable: No
- Specifications Met:
Inch sizes: ASTM B16
Metric sizes: European Standard EN 12164
With the highest lead content of all the brass alloys, 360 offers the best machinability. Often called free-machining and free-cutting brass, it stands up to high-speed drilling, milling, and tapping operations with minimal wear on your tools. It’s commonly used for gears, pinions, and lock components.
1 m Lg. | ||||
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| Dia., mm | Dia. Tolerance Range, mm | Hardness | Each | |
| 5 | -0.05 to 0.05 | Rockwell B75 (Medium) | 0000000 | 000000 |
Easy-to-Machine Architectural 385 Brass Rods
- Yield Strength:
Inch sizes: 16,000 psi
Metric sizes: 60,000 psi - Hardness:
Inch sizes: Rockwell B40 (Soft)
Metric sizes: Rockwell B55 (Soft) - Temper:
Inch sizes: H02 (1/2 Hard)
Metric sizes: 1/2 Hard - Heat Treatable: No
- Specifications Met:
Inch sizes: ASTM B455
Metric Sizes: European Standard EN 12164
Often called architectural bronze, 385 brass is easy to machine and has excellent formability when heated. It is typically used for handrails, ornamental trim, and hardware, such as hinges and lock bodies.
Certificates with a traceable lot number are available for these products. Download certificates from ACTIVITY after your order ships.
1 m Lg. | ||||
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| Dia., mm | Dia. Tolerance Range, mm | Straightness Tolerance | Each | |
| 5 | -0.05 | .4 mm per 400 mm | 0000000 | 000000 |
Tight-Tolerance High-Strength 7075 Aluminum Rods
- Yield Strength: 73,000 psi
- Hardness: Brinell 150 (Medium)
- Temper: T6
- Fabrication: Cold Worked
- Specifications Met: ASTM B211
Ready for turning in a lathe, these rods are precision ground and held to a strict straightness tolerance. Originally developed for aircraft frames, uses for 7075 aluminum now include keys, gears, and other high-stress parts. It is often used as a replacement for 2024 aluminum because it’s stronger and provides similar performance in all other aspects.
Hardened Undersized High-Speed M2 Tool Steel Rods
- Yield Strength: Not Rated
- Hardness: Rockwell C60 (Very Hard)
These rods, also known as drill blanks, have an undersized diameter for machining your own jobbers'-length drill bits. They're hardened for increased abrasion and impact resistance. M2 tool steel offers a nice balance of wear resistance and machinability. It has a high molybdenum content, which allows it to maintain sharp cutting edges even at elevated temperatures.
| Dia. | Dia. Tolerance | Drill Bit Size | Lg. | Mechanical Finish | Straightness Tolerance | Each | |
| 5mm | -0.0050mm to 0.0000mm | 5 mm | 3 5/8" | Precision Ground | 0.001" | 00000000 | 00000 |
Tight-Tolerance Multipurpose
Oil-Hardening O1 Tool Steel Rods
- Yield Strength: 50,000 psi
- Hardness: Rockwell B90 (Medium)
- Heat Treatable: Yes
- Max. Hardness After Heat Treatment:
Inch sizes: Rockwell C65
Metric sizes: Rockwell C62 - Specifications Met: ASTM A681
Ready for turning in a lathe, these rods are precision ground to a tight diameter tolerance. They’re also known as drill rod. Often used for dies, punches, and gauges, O1 tool steel is an oil-hardening material that resists wear and abrasion.
3 ft. Lg. | |||
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| Dia. | Dia. Tolerance | Mechanical Finish | |
| 5mm | -0.013mm to 0.013mm | Precision Ground | 00000000 |
Tight-Tolerance Multipurpose
Air-Hardening A2 Tool Steel Rods
Precision ground and held to a strict straightness tolerance, these rods are ready for turning in your lathe. They’re also known as drill rod. A2 tool steel is more wear resistant than O1 and it keeps a sharper cutting edge. This air-hardening material is widely used for punches, broaches, and dies.
- Yield Strength: 55,000 psi
- Hardness: Rockwell B90 (Medium)
- Heat Treatable: Yes
- Max. Hardness After Heat Treatment: Rockwell C62
- Specifications Met: ASTM A681
Ultra-Hard C2 Tungsten Carbide Rods
- Yield Strength: Not Rated
- Hardness: Rockwell C80 (Very Hard)
- Temper Rating: Not Rated
Tungsten carbide, sometimes called carbide, is harder than Corrosion-Resistant Tungsten with excellent wear resistance. Use it to machine long-lasting tools, such as end mills and inserts.
For technical drawings and 3-D models, click on a part number.
| Dia. | Dia. Tolerance | Lg. | Lg. Tolerance | Mechanical Finish | Each | |
| 5mm | -0.007mm to 0mm | 50mm | -1.5mm to 1.5mm | Precision Ground | 0000000 | 00000 |