About Carbon Steel, Alloy Steel, Spring Steel, and Cast Iron
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About Metal Tubing
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Smooth-Bore Seamless Stainless Steel Tubing

Seamless construction with no weld bead gives this tubing an interior with unrestricted flow. It is stronger than welded tubing and can be flared without splitting.
304 stainless steel has very good corrosion resistance.
316 stainless steel offers excellent corrosion resistance.
Tubing that meets ASTM specifications adheres to international standards for dimensions and materials.
For technical drawings and 3-D models, click on a part number.
- Temperature Range:
304 Stainless Steel: -425° to 1500° F
316 Stainless Steel: -325° to 1500° F - Bending Method: Tube Bender
- For Use With: Natural Gas, Water, Oil, Air
- Compatible Tubing Fittings: Butt Weld, Compression, Flared, and Yor-Lok
Welded Stainless Steel Tubing

When your application does not require a smooth interior, this tubing is an economical choice. It has a weld bead on the inside.
304 stainless steel has very good corrosion resistance.
316 stainless steel offers excellent corrosion resistance.
For technical drawings and 3-D models, click on a part number.
- Temperature Range: 304 Stainless Steel: -420° to 1500° F
316 Stainless Steel: -320° to 1500° F - Bending Method: Tube Bender
- Compatible Tube Fittings: See table
OD | Wall Thickness | ID | Maximum Pressure | Temper Rating | Compatible Tube Fittings | 1 ft. | 3 ft. | 6 ft. | |
304 Stainless Steel—For Use With Air, Deionized Water, Hydraulic Fluid, Natural Gas, Oil, Water | |||||||||
---|---|---|---|---|---|---|---|---|---|
3/4" | 0.12" | 0.51" | 5,300 psi @ 72° F | Soft | Butt Weld, Compression | 00000000 | |||
316 Stainless Steel—For Use With Air, Deionized Water, Hydraulic Fluid, Natural Gas, Oil, Water | |||||||||
3/4" | 0.12" | 0.51" | 5,300 psi @ 72° F | Soft | Butt Weld, Compression | 000000000 |
Low-Carbon Steel Round Tubes

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.
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: See table
- Hardness: See table
- Heat Treatable: See table
- Specifcations Met: See table
Easy-to-Weld 4130 Alloy Steel Round Tubes

- Yield Strength: See table
- Hardness: See table
- Heat Treatable: Yes
- Max. Hardness After Heat Treatment: See table
- Specifications Met: See table
4130 alloy steel has a low carbon content that provides good weldability. It's often used for gears, fasteners, and structural applications. These tubes meet military specifications and SAE dimensional standards.
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.
OD | OD Tolerance | ID | Yield Strength | Hardness | Maximum Hardness After Heat Treatment | Specifications Met | Straightness Tolerance | 1 ft. Lg. | 3 ft. Lg. | 6 ft. Lg. | |
0.12" Wall Thick. (-0.018" to 0.018" Tolerance) | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
3/4" | -0.005" to 0.005" | 0.51" | 70,000 psi | Rockwell C20 | Rockwell C49 | MIL-T-6736, SAE AMS-T-6736, SAE AMS6360 | 0.030" per 3 ft. | 000000000 |
Multipurpose 304 Stainless Steel
From cookware to chemical-processing equipment, 304 stainless steel is a good all-around choice for a wide range of applications. It maintains its corrosion resistance in temperatures up to 1500° F.
304/304L stainless steel contains less carbon than standard 304 for better weldability.
Seamless round tubes are more corrosion resistant than welded tubes because they don’t have a seam that could potentially introduce impurities.
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: See Table
- Hardness: See Table
- Heat Treatment: Annealed (Softened)
- Heat Treatable: No
- Specifications Met: See Table
Corrosion-Resistant 316 Stainless Steel
The addition of molybdenum gives 316 stainless steel excellent corrosion resistance. Use it in a variety of marine and chemical-processing applications. It maintains its corrosion resistance up to the maximum temperature.
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:
316 Stainless Steel: 30,000 psi
316/316L Stainless Steel: 25,000 psi - Hardness: Rockwell B80 (Medium)
- Heat Treatment: Annealed (Softened)
- Heat Treatable: No
- Specifications Met: See Table
High-Strength 2024 Aluminum Tubes

- Yield Strength: 42,000 psi
- Hardness: Brinell 120 (Medium)
- Temper: T3
- Fabrication: Cold Drawn
- Specifications Met: ASTM B210
While 2024 aluminum was initially designed for structural components in aircraft, it's now widely used when a high strength-to-weight ratio is needed, such as for gears, shafts, and fasteners. It offers similar performance to 7075 aluminum, but it’s not as strong.
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.
High-Temperature Electrical-Insulating Tube Sleeving

This sleeving withstands temperatures up to 390° F and is often used to insulate connections in transformers, relays, and solenoids. It prevents electricity and heat from dissipating from wire and cable. When exposed to flame, it will self-extinguish and produce a nonconductive ash. It’s flame rated VW-1 to meet requirements for preventing the spread of flames based on a timed test with vertically suspended material. Made of silicone-coated fiberglass, it resists chemicals.
Electrical-Insulating Tube Sleeving

Add a layer of insulation to prevent electricity and heat from dissipating from wire and cable. This sleeving is often used in motors, transformers, and generators. Made of coated fiberglass, it resists abrasion, acids, alkalies, and chemicals.
Vinyl-coated sleeving resists wax and alcohol. Sleeving is flame-rated VW-1 to meet requirements for preventing the spread of flames based on a timed test with vertically suspended material.
Expandable Electrical-Insulating Tube Sleeving

A specially formulated silicone rubber coating allows this fiberglass sleeving to stretch over items during installation; it then tightens around its contents for a secure fit. Often used in motors, generators, and transformers, it prevents electricity and heat from dissipating from wire and cable. It has good chemical resistance.
Round Adjustable-Length Shipping Tubes
Adjust these tubes by twisting the two halves. A hexagonal end prevents rolling. Use them to protect long, thin objects during shipping.
Twist-to-lock tubes can be slid up or down to adjust their length, so you don’t have to repeatedly twist the two pieces. To slide, turn the top tube into the sliding channel. To lock, turn the tube with the ridges into the grooved channel.
For technical drawings and 3-D models, click on a part number.
Recycled Plastic Round Adjustable-Length Shipping Tubes

Made of recycled polyethylene, these shipping tubes are more sustainable than standard plastic shipping tubes. Push the ends together or pull them apart to adjust the length. Use these tubes to protect long, thin objects during shipping.
For technical drawings and 3-D models, click on a part number.