McMaster-Carr logo
    Filter by
    System of Measurement
    ID
    Attribute Image
    Heat Treatable
    U.S.–Mexico–Canada Agreement (USMCA) Qualifying
    DFARS Specialty Metals
    Mechanical Tube Type
    Export Control Classification Number (ECCN)
    Industrial Info Snippet
    Elongation
    Temper Designation
    Melting Point Temperature
    Enter e-mail addresses in the fields below
    Message
    Cancel
    Comments
    E-mail address (if you would like a response)
    36 Products
    About Steel
    industrial info icon

    Compare over 50 grades of steel and cast iron to find the right material for you—all with material certificates for traceability.

    Multipurpose Low-Carbon Steel Round Tubes

    Image of Product. Front orientation. Steel. Multipurpose 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 frames, supports, and conduit.
    Stress-Relieved Heat Treatment—Tubes that are stress relieved minimize warping during machining.
    Seamless—Seamless tubes are stronger than welded tubes.
    DOM—DOM (drawn over mandrel) welded tubes are stronger than ERW (electric resistance welded) tubes.
    Heat Treatable—Heat treatable tubes can be surface hardened.
    Material Certificate Icon
    Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.
    OD
    ID
    Fabrication
    Mechanical
    Tube Type
    Heat Treatment
    Heat
    Treatable
    Yield Strength,
    psi
    Hardness
    Specs. Met
    1"
    Long
    3"
    Long
    1/2 ft.
    Long
    1 ft.
    Long
    2 ft.
    Long
    3 ft.
    Long
    6 ft.
    Long
    8 ft.
    Long
    1/8" Thick Wall
    2"1 3/4"WeldedERWNo32,000Rockwell B55 (Soft)ASTM A513 Type 17767T316000000000000000000
     
    1/4" Thick Wall
    2 1/4"1 3/4"WeldedDOMStress RelievedNo65,000Rockwell B80 (Medium)ASTM A513 Type 57767T29600000000000000000
     
    3/8" Thick Wall
    2 1/2"1 3/4"WeldedDOMNo65,000Rockwell B80 (Medium)ASTM A513 Type 57767T860000000000000000000000000000000000000
    2 1/2"1 3/4"WeldedDOMNo70,000Rockwell B85 (Medium)ASTM A513 Type 56045N691000000
    2 1/2"1 3/4"WeldedDOMNo70,000Rockwell B85 (Medium)ASTM A513 Type 56045N689000000
     
    1/2" Thick Wall
    2 3/4"1 3/4"WeldedDOMNo65,000Rockwell B80 (Medium)ASTM A513 Type 57767T8900000000000000000000000000000
     
    5/8" Thick Wall
    3"1 3/4"WeldedDOMNo70,000Rockwell B85 (Medium)ASTM A513 Type 56045N55000000000000000000
     
    3/4" Thick Wall
    3 1/4"1 3/4"SeamlessYes65,000Rockwell B80 (Medium)ASTM A5197767T797000000000000
     

    Multipurpose 932 Bearing Bronze Round Tubes

    Image of Product. Front orientation. Bronze. Multipurpose 932 Bearing Bronze Round Tubes.
    Balancing strength, corrosion resistance, and machinability, 932 is everything you want in a bearing bronze. It's most commonly made into thrust bearings and bushings. Also known as SAE 660.
    Material Certificate Icon
    Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.
    OD
    ID
    Temper
    Designation
    Specs.
    Met
    3"
    Long
    6 1/2"
    Long
    13"
    Long
    1/8" Thick Wall
    2"1 3/4"M07ASTM B5058911K313000000000000000000
     
    1/4" Thick Wall
    2 1/4"1 3/4"M07ASTM B5058911K4140000000000000000
     
    3/8" Thick Wall
    2 1/2"1 3/4"M07ASTM B5058911K41700000000000000000
     
    1/2" Thick Wall
    2 3/4"1 3/4"M07ASTM B5058911K36300000000000000000
     
    5/8" Thick Wall
    3"1 3/4"M07ASTM B5058911K379000000000000000000
     
    7/8" Thick Wall
    3 1/2"1 3/4"M07ASTM B5058911K394000000000000000000
     

    Telescoping Delrin® Acetal Round Tubes

    Image of Product. Front orientation. Plastic. Telescoping Delrin® Acetal Round Tubes.
    Telescoping tubes, also known as bushing stock, slide over rods and inside shafts to increase or decrease the diameter. Their precise sizing also allows ascending sizes to fit inside each other to increase the wall thickness.
    Easy to machine to close tolerances, these dimensionally stable tubes resist expanding when exposed to heat and moisture. They have a naturally slippery surface along with excellent wear resistance. Use them to make precision gears, bushings, and bearings. Delrin® acetal resin, also known as acetal homopolymer, is stronger and stiffer than acetal copolymer.
    White
    OD
    ID
    Fabrication
    Temp.,
    ° F
    Lg.
    Tensile Strength,
    psi
    Impact Strength,
    ft·lbf/in
    Food Industry Std.
    Each
    Tight Tolerance
     
    1/8" Thick Wall (-0.005" to 0.005" Tolerance)
    2"1 3/4"Extruded0 to 1806"7,6901 to 1.5FDA Standard, NSF Standard
    1989T170000000
     

    Wear-Resistant Nylon Round Tubes

    Image of Product. Front orientation. Plastic. Wear-Resistant Nylon Round Tubes.
    Because these wear-resistant nylon 6/6 tubes have a slippery surface that reduces friction, they’re often machined into bearings, gears, and valve seats.
    Oversized Tolerance—Oversized tubes have an oversized OD and an undersized ID for finishing to the sizes listed.
    Material Certificate Icon
    Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.
    OD
    ID
    Lg.,
    ft.
    Fabrication
    Min. Temp.,
    ° F
    Max. Temp.,
    ° F
    Tensile Strength,
    psi
    Impact Strength,
    ft·lbf/in
    Color
    Flammability
    Rating
    Food Industry
    Std.
    Each
    Oversized Tolerance
     
    1/8" Thick Wall
    2"1 3/4"5Extruded-4016511,200 to 12,3000.6 to 1.4Off-WhiteUL 94 HB
    FDA Standard
    8628K97000000
     

    Machinable Cast Nylon Round Tubes

    Image of Product. Front orientation. Plastic. Machinable Cast Nylon Round Tubes.
    These cast nylon 6 tubes are easier to machine than other standard nylon 6/6 rods. They’re also better electrical insulators. Use them to make pulleys, bushings, and bearings. This material is comparable to Nylatron and Nycast.
    Oversized Tolerance—Oversized tubes have an oversized OD and an undersized ID for finishing to the sizes listed.
    OD
    ID
    Fabrication
    Min. Temp.,
    ° F
    Max. Temp.,
    ° F
    Tensile Strength,
    psi
    Impact Strength,
    ft·lbf/in
    Color
    Flammability
    Rating
    Food Industry
    Std.
    Choose a Length,
    ft.
    Per
    Ft.
    Oversized Tolerance
     
    1/2" Thick Wall
    2 3/4"1 3/4"Cast-2020010,0001.5Off-WhiteUL 94 HB
    FDA Standard
    1, 285005K182000000
     

    Oil-Filled Cast Nylon Round Tubes

    Image of Product. Front orientation. Plastic. Oil-Filled Cast Nylon Round Tubes.
    Impregnated with oil, these tubes remain slippery over time. Use them to fabricate pulleys, bushings, and bearings for use in hard-to-reach areas where adding a lubricant would be difficult. Because they are made of cast nylon 6, they are easier to machine than standard nylon rods, plus they’re better electrical insulators. This material is comparable to Nycast and Nyloil.
    Oversized Tolerance—Oversized tubes have an oversized OD and an undersized ID for finishing to the sizes listed.
    OD
    ID
    Fabrication
    Min. Temp.,
    ° F
    Max. Temp.,
    ° F
    Tensile Strength,
    psi
    Impact Strength,
    ft·lbf/in
    Color
    Choose a Length,
    ft.
    Per
    Ft.
    Oversized Tolerance
     
    1/2" Thick Wall
    2 3/4"1 3/4"Cast322309,500 to 10,0001.2 to 1.4Green1, 284755K484000000
     

    Telescoping UHMW Polyethylene Round Tubes

    Image of Product. Front orientation. Plastic. Telescoping UHMW Polyethylene Round Tubes.
    Telescoping tubes, also known as bushing stock, slide over rods and inside shafts to increase or decrease the diameter. Their precise sizing allows ascending sizes to fit inside each other to create a thicker wall. These impact- and wear-resistant tubes offer 360° protection from scrapes and strikes to wires, cords, and anything that can slide through them. UHMW has a low-friction surface that resists sticking and binding.
    OD
    ID
    Lg.
    Fabrication
    Min. Temp.,
    ° F
    Max. Temp.,
    ° F
    Tensile Strength,
    psi
    Impact Strength,
    ft·lbf/in
    Color
    Each
    Undersized Tolerance/Tight Tolerance
     
    1/4" Thick Wall (-0.06" to 0" Tolerance)
    2 1/4"1 3/4"6"Extruded-201804,350 to 5,80016.8White1988T14000000
     

    High-Temperature Cast Nylon Round Tubes

    Image of Product. Front orientation. Plastic. High-Temperature Cast Nylon Round Tubes.
    A good choice for making sprockets and pulleys, these cast nylon 6 tubes withstand higher temperatures and are easier to machine than standard nylon 6/6 tubes. This material is comparable to Nylatron and Nycast.
    Oversized Tolerance—Oversized tubes have an oversized OD and an undersized ID for finishing to the sizes listed.
    1 ft. Long
    2 ft. Long
    OD
    ID
    Fabrication
    Max. Temp.,
    ° F
    Tensile Strength,
    psi
    Impact Strength,
    ft·lbf/in
    Color
    Each
    Each
    Oversized Tolerance
     
    1/2" Thick Wall
    2 3/4"1 3/4"Cast25010,000 to 13,5001 to 2.5Blue8413N1410000008413N1420000000
     

    Highly Wear-Resistant Machinable Cast Nylon Round Tubes

    Image of Product. Front orientation. Plastic. Highly Wear-Resistant Machinable Cast Nylon Round Tubes.
    The addition of MDS gives these tubes exceptional wear resistance along with a self-lubricating surface. They're made of cast nylon 6, making them easier to machine and better electrical insulators than other MDS-filled nylon tubes. Tubes can be used to fabricate pulleys, bushings, and bearings installed in hard-to-reach areas where adding a lubricant would be difficult. This material is comparable to Nylatron and Nycast.
    Oversized Tolerance—Oversized tubes have an oversized OD and an undersized ID for finishing to the sizes listed.
    OD
    ID
    Lg.,
    ft.
    Fabrication
    Min.
    Temp.
    Max. Temp.,
    ° F
    Tensile Strength,
    psi
    Impact Strength,
    ft·lbf/in
    Color
    Each
    Oversized Tolerance
     
    1/2" Thick Wall
    2 3/4"1 3/4"1CastNot Rated23010,0001.4Black4363N124000000
    2 3/4"1 3/4"2CastNot Rated23010,0001.4Black4363N12500000
     

    Corrosion-Resistant 954 Bearing Bronze Round Tubes

    Image of Product. Front orientation. Bronze. Corrosion-Resistant 954 Bearing Bronze Round Tubes.
    One of the most corrosion-resistant bearing bronze alloys, 954 withstands everything from sea water to sulfuric acid. It's often turned into bearings and valve bodies for demanding environments such as salt mines. Also known as aluminum bronze. If you need similar corrosion resistance with even greater strength, consider 955 bearing bronze instead.
    Material Certificate Icon
    Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.
    OD
    ID
    Temper
    Designation
    Specs.
    Met
    6 1/2"
    Long
    13"
    Long
    1/4" Thick Wall
    2 1/4"1 3/4"M07ASTM B5058916K50000000000000
     
    3/8" Thick Wall
    2 1/2"1 3/4"M07ASTM B5058916K81000000000000
     
    1/2" Thick Wall
    2 3/4"1 3/4"M07ASTM B5058916K85000000000000
     
    5/8" Thick Wall
    3"1 3/4"M07ASTM B5058916K97000000000000
     

    Highly Machinable 936 Bearing Bronze Round Tubes

    Image of Product. Front orientation. Bronze. Highly Machinable 936 Bearing Bronze Round Tubes.
    With almost twice as much lead, 936 bearing bronze machines more easily than 932. It's often made into bearings and bushings for oil pumps and gasoline engines. Also known as modified SAE 64.
    Material Certificate Icon
    Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.
    OD
    ID
    Temper
    Designation
    Specs.
    Met
    6"
    Long
    13"
    Long
    1/4" Thick Wall
    2 1/4"1 3/4"M07ASTM B5058918K1180000000000000
     
    3/8" Thick Wall
    2 1/2"1 3/4"M07ASTM B5058918K129000000000000
     
    1/2" Thick Wall
    2 3/4"1 3/4"M07ASTM B5058918K134000000000000
     
    5/8" Thick Wall
    3"1 3/4"M07ASTM B5058918K146000000000000
     

    Oil-Embedded 841 Bearing Bronze Round Tubes

    Image of Product. Front orientation. Bronze. Oil-Embedded 841 Bearing Bronze Round Tubes.
    With a porous surface that releases oil over time, this bronze lubricates itself. Turn it into parts that you can't easily access to relubricate, such as bearings, well pumps, and turbine blades. The oil may burn away if temperatures climb too high, however. For extreme heat up to 700° F, consider graphite-embedded bearing bronze instead.
    Material Certificate Icon
    Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.
    OD
    ID
    Temper
    Designation
    Specs.
    Met
    3"
    Long
    6 1/2"
    Long
    1/4" Thick Wall
    2 1/4"1 3/4"Not RatedASTM B4388931K1910000000000000
     
    3/8" Thick Wall
    2 1/2"1 3/4"Not RatedASTM B4388931K30100000000000
     
    1/2" Thick Wall
    2 3/4"1 3/4"Not RatedASTM B4388931K401000000000000
     
    5/8" Thick Wall
    3"1 3/4"Not RatedASTM B4388931K471000000000000
     
    7/8" Thick Wall
    3 1/2"1 3/4"Not RatedASTM B4388931K551000000000000
     
    back to top