Copper C10100, referred to as OFHC (Oxygen-Free High Conductivity) copper, is a highly pure copper alloy with a composition of 99.99% and an oxygen content that is less than 0.0005%. The heavily low oxygen level enhances its capacity to withstand damage from hydrogen, making it a popular choice for vacuum environments, refrigeration systems, and high-frequency electrical applications. It provides excellent thermal conductivity of around 391 W/m·K, making it perfect for heat exchangers and industrial cooling systems.
We offer a variety of C10100 copper pipes, featuring seamless copper pipes, welded copper tubes, drawn copper tubing, and custom-sized copper piping tailored for diverse industrial applications. We produce these pipes following ASTM B68, ASTM B75, ASTM B88, and ASTM B280 standards, guaranteeing exceptional mechanical strength, consistent grain structure, and beneficial surface finish. Available in hard, half-hard, and soft tempers, our high-purity copper tubes can be customized in diameters ranging from 6mm to 300mm with wall thicknesses suited for low-pressure and high-pressure applications.
Electrical bus bars, high-voltage connectors, semiconductor processing, and industrial furnaces widely use our oxygen-free copper C10100 tubes. The seamless copper tubes ensure a reliable, leak-proof operation for HVAC systems, refrigeration units, and gas pipelines, whereas the larger copper pipes find their application in power generation and aerospace sectors. Their outstanding resistance to corrosion makes them perfect for marine and chemical processing applications where moisture, acids, and harsh chemicals pose a significant risk.
Copper C10100 Pipes and Tubes Chemical Composition
| Grade | Cu | Ph | Rem | Te |
| Copper C10100 | 99.99 min | 0.0003 max | 0.004 max | 0.001 max |


Mechanical Property Of Copper C10100 Pipes & Tubes
| Grade | Density | Electrical Resistivity (microhm-cm (at 68 Deg F)) | Melting Point (Deg F) | Thermal Conductivity | Mean Coeff Thermal Expansion | Modulus of Elasticity Tension |
| C10100 | 0.323 | 10.3 | 1981 | 226 | 9.4 | 17000 |
Copper C10100 Pipes and Tubes Physical Property
| Grade | Density | Electrical Resistivity (microhm-cm (at 68 Deg F)) | Melting Point (Deg F) | Thermal Conductivity | Mean Coeff Thermal Expansion | Modulus of Elasticity Tension |
| C10100 | 0.323 | 10.3 | 1981 | 226 | 9.4 | 17000 |
about GNEE

why choose our products
Our company is equipped with advanced production lines capable of extruding, drawing, refining, and processing copper rods, copper tubes, copper busbars, and special-shaped copper products. To ensure every single product meets international standards, we have established a comprehensive quality control center. This center is furnished with a range of high-precision testing equipment, including spectrometers, metallurgical microscopes, universal material testing machines, and conductivity testers. This allows us to perform rigorous checks on raw materials, semi-finished, and finished products, covering chemical composition, physical properties, and non-destructive testing.
If you need any help, please contact us immediately:sales@gneesteel.com
Other product forms provided by GNEE
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Material |
Brass:C21000,C22000,C22600,C23000,C24000,C26000,C26130,C26800,C27000,C27200,C27400, C2800,H59,H62,H70,H65,H80,H90,CuZn30,CuZn37,CuZn35,CuZn40,etcLeaded |
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Diameter |
1/4",3/8",1/2", 5/8", 7/8" or customized |
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Thickness |
0.5/0.6/0.7/0.8/1 or Customized |
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Length |
15m/50ft or customized |
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Standard |
JIS,AISI,ASTM,GB,DIN,EN |
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Price Term |
x-Work,FOB,CNF,CFR,CIF,FCA,DDP,DDU,etc |
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Payment Term |
TT,L/C,Western Union,D/P,etc |
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Application |
refrigeration,installation of air conditioner,construction water and gas |
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Package |
Standard export package,suit for all kinds of transport,or as required. |
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Material |
Copper, Brass, Bronze and special copper alloy |
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Grade |
ASTM |
C10100,C11000,C12200,C21000,C22000,C23000,C24000,C26000, |
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G/B |
TU1,T2,TP2,H96,H90,H85,H80,H70,H65,H63,H62,H59,HPb63-3, |
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JIS |
C 1011,C 1100,C 1220,C3604,C 2100,C 2200,C 2300,C 2400, C 2600, |
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BS |
Cu-OFE,C 101,Cu-DHP,CZ 125,CZ 101,CZ 102,CZ 103,CZ 106,CZ 107, CZ 108,CZ 109,CZ 123,CZ 124, CZ 121,CZ 111,CZ 133, Pb 104, |
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DIN/ISO |
CuZn5,CuZn10,CuZn15,CuZn20,CuZn30,CuZn35,CuZn33,CuZn36, |
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Shape |
Round, Square, Flat, Hexagon, Oval, Half-round or Customized |
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Dimension |
Bar/Rod |
Standard(Diameter 5-160 mm) or Customized |
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Wire |
Standard(Diameter 0.02-6 mm) or Customized |
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Plate/Sheet |
Standard(T 0.2-50 mm/W 200-3000 mm/L 6000 mm) or Customized |
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Strip |
Standard(T 0.05-1.5 mm/W 20-600 mm/L 20000 mm) or Customized |
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Tube/Pipe |
Standard(OD 3-360mm/Wall thickness 0.5-50 mm) or Customized |
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Standard |
GB/T,JIS,ASTM, ISO, DIN, BS, NF etc. |
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Hardness |
1/16 hard,1/8 hard,3/8 hard,1/4 hard,1/2hard,full hard. |
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Package |
Plastic film + Wooden case or as per customer requirement |
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Surface |
Polished,bright,oiled,hair line,brush,mirror,or as required |
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Deliver time |
According to order's quantity. |
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Shipment |
By sea, by air, DHL, UPS, FedEx etc. or as required |
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Application |
Electric light industry, machinery manufacturing, Building industry ,defense industry, and other fields Manufacturing industrial |
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Standard |
ASTM,DIN,BS,CDA,JIS,GB |
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Material |
T1,T2,C10100,C10200,C10300,C10400,C10500,C10700,C10800, |
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Shape |
Square,Rectangular,etc. |
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Specifications |
Diameter:3~200mm |
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Length |
3m,5.8m, 6m, 11.8m, 12m, or as required. |
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Hardness |
1/16 hard,1/8 hard,3/8 hard,1/4 hard,1/2hard,full hard,soft,etc |
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Surface |
mill,polished,bright,oiled,hair line,brush,mirror,sand blast,or as required. |
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Price term |
EXW, FOB, CFR, CIF, etc. |
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Payment term |
T/T |
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Package |
Export standard package: bundled wooden box, suit for all kinds of transport, |
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Delivery time |
According to order quantity |
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Export to |
Singapore,Indonesia,Ukraine,Korea,Thailand, Vietnam, Saudi Arabia, Brazil, Spain, |
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Application |
Copper plates are mainly used in electrical conductivity, heat conduction, and corrosion-resistant equipment. For instance, they are applied in wires, cables, conductive screws, blasting detonators, evaporators for chemical industries, storage containers, and various pipelines, etc. They can also be used as force-bearing parts for various deep drawing and bending manufacturing processes, such as pins, rivets, washers, nuts, conduits, pressure gauges, screens, and radiator parts, etc. |
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Contact |
If any requirement please feel free to inform me at any time. |
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Grade |
C10100,C10200,C10300,C10400,C10500,C10700,C10800,C10910,C10920, C10930,C11000,C11300,C11400,C11500,C11600,C12000,C12200,C12300, C12500,C14200,C14420,C14500,C14510,C14520,C14530,C17200,C19200, C21000,C23000,C26000,C27000,C27400,C28000,C33000,C33200,C37000, C44300,C44400,C44500,C60800,C63020,C65500,C68700,C70400,C70620, C71000,C71500,C71520,C71640,C72200,T1,T2,T3,etc |
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Standard |
JIS ASTM DIN EN ISO |
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Diameter |
0.3-5mm/custom |
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Length |
custom |
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Surface |
mill,polished,bright,mirror,hair line,brush,checkered,antique,sand blast,etc |
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Application |
Building, industry etc |
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Payment Terms |
T/T or L/C at sight |
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Delivery time |
5-15 days after receiving L/C or deposit |
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Remark |
Specific requirement of alloy grade,temper or specification can be discussed at your request |







