McMaster-Carr logo
    Enter e-mail addresses in the fields below
    Message
    Cancel
    Comments
    E-mail address (if you would like a response)
    38 Products
    About Copper, Brass & Bronze
    industrial info icon

    Compare over 30 copper, brass, and bronze alloys to find the right material for you—all with material certificates for traceability.

    Ultra-Conductive 101 Copper Rods

    The purest, most conductive copper we offer, with at least 99.95% copper content. Since there’s virtually no oxygen to outgas, it won’t break high-vacuum systems. It also won’t contaminate clean rooms, such as in semiconductor manufacturing.
    Material Certificate Icon
    Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.
    Long Rods
    Image of Product. Front orientation. Copper. Ultra-Conductive 101 Copper Rods.
    Dia.
    Dia. Tolerance
    Temper
    Designation
    Specs.
    Met
    1/2 ft.
    Long
    1 ft.
    Long
    2 ft.
    Long
    3 ft.
    Long
    6 ft.
    Long
    1/8"-0.002" to 0.002"H04ASTM B1878965K3500000000000000000000000000
    5/32"-0.003" to 0.003"H04ASTM B1878965K3600000000000000000000000
    3/16"-0.004" to 0.004"H04ASTM B1878965K1100000000000000000000000
    1/4"-0.004" to 0.004"H04ASTM B1878965K120000000000000000000000000
    5/16"-0.004" to 0.004"H04ASTM B1878965K130000000000000000000000000
    3/8"-0.004" to 0.004"H04ASTM B1878965K140000000000000000000000000
    7/16"-0.004" to 0.004"H04ASTM B1878965K1500000000000000000000000000
    1/2"-0.004" to 0.004"H04ASTM B1878965K8200000000000000000000000000
    9/16"-0.004" to 0.004"H04ASTM B1878965K3800000000000000000000000000
    5/8"-0.004" to 0.004"H04ASTM B1878965K7100000000000000000000000000
    11/16"-0.004" to 0.004"H04ASTM B1878965K390000000000000000000000000000
    3/4"-0.004" to 0.004"H04ASTM B1878965K720000000000000000000000000000
    7/8"-0.004" to 0.004"H04ASTM B1878965K680000000000000000000000000000
    1"-0.004" to 0.004"H04ASTM B1878965K730000000000000000000000000000
    1 1/8"-0.004" to 0.004"H04ASTM B1878965K45000000000000000000000000000000
    1 1/4"-0.004" to 0.004"H04ASTM B1878965K74000000000000000000000000000000
    1 1/2"-0.004" to 0.004"H04ASTM B1878965K75000000000000000000000000000000
    2"-0.005" to 0.005"H04ASTM B1878965K7600000000000000000000000000
    2 1/2"-0.006" to 0.006"H04ASTM B1878965K49000000000000000000000000000000000000
    3"-0.008" to 0.008"H04ASTM B1878965K5700000000000000000000000000000000
    Short Rods and Discs
    Image of Product. Front orientation. Copper. Ultra-Conductive 101 Copper Rods.
    Dia.
    Dia. Tolerance
    Temper
    Designation
    Specs. Met
    1"
    Long
    2"
    Long
    3"
    Long
    4"
    Long
    5"
    Long
    6" Long
    2"-0.008" to 0.008"H04ASTM B187, ASTM F688312K720000000000000000000000000000000000000000
    3"-0.008" to 0.008"H04ASTM B187, ASTM F688312K73000000000000000000000000000000000000
    4"-0.008" to 0.008"H04ASTM B187, ASTM F688312K74000000000000000000000000000000000000
    5"-0.01" to 0.01"H04ASTM B187, ASTM F688312K75000000000000000000000000000000000000
    6"-0.063" to 0.063"Not RatedASTM B187, ASTM F688312K7600000000000000000000000000000000000000

    Gaskets for Ultra-High-Vacuum Flanges

    Image of ProductInUse. Front orientation. Contains Annotated. Tube Fitting Gaskets. Gaskets for Ultra-High-Vacuum Flanges.
    Image of Product. Front orientation. Tube Fitting Gaskets. Gaskets for Ultra-High-Vacuum Flanges.
    Install these gaskets between two CF flanges—also known as Conflat or UHV flanges—to create extremely tight seals in ultra-high-vacuum systems. Made from 101 copper, these gaskets have virtually no oxygen to outgas, so they won’t cause oxidation or contaminate your system. They also form stronger seals than rubber gaskets. As you bolt the flanges together, sharp inner teeth bite into these gaskets to form an airtight metal-to-metal seal.
    Each
    For Flange
    OD
    For High-Vacuum
    Flange Size
    ID
    OD
    Thk.
    For High Vacuum
    Connection
    Material
    Specs. Met
    1-9
    10-Up
    1 21/64"160.64"0.838"0.08"CF101 CopperASTM B152, ASTM F689088K510000000000
    2 1/8"251.01"1.29"0.08"CF101 CopperASTM B152, ASTM F689088K5600000000
    2 3/4"401.451"1.895"0.08"CF101 CopperASTM B152, ASTM F689088K5200000000
    4 1/2"632.506"3.243"0.08"CF101 CopperASTM B152, ASTM F689088K5300000000
    6"1004.006"4.743"0.08"CF101 CopperASTM B152, ASTM F689088K54000000000
    6 3/4"1255.01"5.567"0.08"CF101 CopperASTM B152, ASTM F689088K570000000000
    8"1606.007"6.743"0.08"CF101 CopperASTM B152, ASTM F689088K550000000000

    Titanium-Clad Ultra-Conductive 101 Copper Rods

    Image of Product. Front orientation. Copper. Titanium-Clad Ultra-Conductive 101 Copper Rods.
    The superior conductivity of 101 copper with a boost in corrosion resistance. Clad with titanium, these rods have a protective layer that shields them from water and chemicals. Turn them into electrical parts that need to last in harsh environments, from electroplating anodes to marine heat exchangers.
    Material Certificate Icon
    Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.
    Dia.
    Dia. Tolerance
    Temper
    Designation
    3 ft.
    Long
    6 ft.
    Long
    1/4"-0.005" to 0.005"Not Rated1025N10000000000000
    3/8"-0.01" to 0.01"Not Rated1025N2000000000000
    1/2"-0.01" to 0.01"Not Rated1025N3000000000000
    5/8"-0.01" to 0.01"Not Rated1025N4000000000000
    3/4"-0.01" to 0.01"Not Rated1025N5000000000000
    1"-0.02" to 0.02"Not Rated1025N6000000000000
    back to top