International Standard: C10300 (ASTM B152)
Chinese Designation: TU1 (GB/T 5231)
Alias: Oxygen-Free High Conductivity Copper (OFHC)
Key Features
High Purity: Copper content ≥99.99%, oxygen content ≤0.0003%.
Exceptional Conductivity: Electrical conductivity ≥101% IACS (International Annealed Copper Standard).
Superior Thermal Conductivity: Ideal for heat dissipation applications.
Low Gas Content: Excellent vacuum sealing performance for high-temperature oxygen-free environments.
Outstanding Workability: High ductility for deep drawing, wire drawing, and forging.
Common Product Forms & Dimensions
|
Product Form |
Dimensions |
Delivery Conditions |
|
Rods |
Diameter: Φ5mm–Φ200mm, Length: 1–6m |
Hard (H), Half-Hard (1/2H), Annealed (O) |
|
Wires |
Diameter: Φ0.1mm–Φ10mm |
Straight or coiled |
|
Sheets/Plates |
Thickness: 0.1mm–50mm, Width: ≤1200mm |
Cold-rolled, Hot-rolled, Annealed |
|
Tubes |
OD: Φ3mm–Φ150mm, Wall Thickness: 0.2–10mm |
Seamless or welded |
Chemical Composition (wt%)
|
Element |
Cu |
O |
Other Impurities (Total) |
|
Content |
≥99.99 |
≤0.0003 |
≤0.007 |
Physical Properties
|
Property |
Value |
Test Standard |
|
Density (20°C) |
8.94 g/cm³ |
ASTM B193 |
|
Melting Point |
1083°C |
ASTM E3 |
|
Thermal Conductivity (20°C) |
391 W/(m·K) |
ASTM E1225 |
|
Electrical Resistivity (20°C) |
1.673×10⁻⁸ Ω·m |
ASTM B193 |
|
Thermal Expansion (20–300°C) |
16.5×10⁻⁶/°C |
ASTM E228 |
Mechanical Properties
|
Condition |
Tensile Strength (MPa) |
Yield Strength (MPa) |
Elongation (%) |
Hardness (HV) |
|
Annealed (O) |
200–250 |
60–80 |
≥45 |
40–60 |
|
Hard (H) |
350–450 |
300–380 |
5–15 |
100–120 |
Core Advantages
Ultra-High Purity: Minimizes impurities for optimal conductivity/thermal performance.
Vacuum Compatibility: Low oxygen content prevents hydrogen embrittlement in high-temperature vacuum environments.
Superior Ductility: Suitable for precision machining (e.g., semiconductor lead frames).
Corrosion Resistance: Stable in non-oxidizing acids and alcohol-based media.
Applications
Electronics & Electrical: High-frequency conductors, vacuum tubes, magnetron components.
Energy Sector: Solar cell conductive layers, liners for nuclear fusion devices.
Cryogenics: Ultra-low-temperature pipelines (liquid nitrogen/helium transfer).
Advanced Manufacturing: 3D printing metal powders, sputtering targets.
Processing Guidelines
Annealing: Perform under hydrogen or inert gas atmosphere (400–600°C).
Cold Working: Intermediate annealing required for deformation exceeding 80%.
Welding: Use TIG welding or electron beam welding to avoid oxidation.
Storage: Seal packaging to prevent oxidation; avoid contact with sulfides.
FAQ
|
Question |
Answer |
|
How does C10300 differ from regular copper (e.g., T2)? |
Lower oxygen content (T2: ≤0.06% O), higher conductivity, and suitability for vacuum environments. |
|
Is it suitable for high-frequency signal transmission? |
Yes, high purity minimizes skin effect losses at high frequencies. |
|
How to prevent oxidation during processing? |
Use inert gas shielding or vacuum furnaces; clean surfaces post-processing. |
|
Can it be electroplated? |
Yes, but requires thorough degreasing and surface activation. |
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
|
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 |
|
Diameter |
1/4",3/8",1/2", 5/8", 7/8" or customized |
|
Thickness |
0.5/0.6/0.7/0.8/1 or Customized |
|
Length |
15m/50ft or customized |
|
Standard |
JIS,AISI,ASTM,GB,DIN,EN |
|
Price Term |
x-Work,FOB,CNF,CFR,CIF,FCA,DDP,DDU,etc |
|
Payment Term |
TT,L/C,Western Union,D/P,etc |
|
Application |
refrigeration,installation of air conditioner,construction water and gas |
|
Package |
Standard export package,suit for all kinds of transport,or as required. |
|
Material |
Copper, Brass, Bronze and special copper alloy |
|
|
Grade |
ASTM |
C10100,C11000,C12200,C21000,C22000,C23000,C24000,C26000, |
|
G/B |
TU1,T2,TP2,H96,H90,H85,H80,H70,H65,H63,H62,H59,HPb63-3, |
|
|
JIS |
C 1011,C 1100,C 1220,C3604,C 2100,C 2200,C 2300,C 2400, C 2600, |
|
|
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, |
|
|
DIN/ISO |
CuZn5,CuZn10,CuZn15,CuZn20,CuZn30,CuZn35,CuZn33,CuZn36, |
|
|
Shape |
Round, Square, Flat, Hexagon, Oval, Half-round or Customized |
|
|
Dimension |
Bar/Rod |
Standard(Diameter 5-160 mm) or Customized |
|
Wire |
Standard(Diameter 0.02-6 mm) or Customized |
|
|
Plate/Sheet |
Standard(T 0.2-50 mm/W 200-3000 mm/L 6000 mm) or Customized |
|
|
Strip |
Standard(T 0.05-1.5 mm/W 20-600 mm/L 20000 mm) or Customized |
|
|
Tube/Pipe |
Standard(OD 3-360mm/Wall thickness 0.5-50 mm) or Customized |
|
|
Standard |
GB/T,JIS,ASTM, ISO, DIN, BS, NF etc. |
|
|
Hardness |
1/16 hard,1/8 hard,3/8 hard,1/4 hard,1/2hard,full hard. |
|
|
Package |
Plastic film + Wooden case or as per customer requirement |
|
|
Surface |
Polished,bright,oiled,hair line,brush,mirror,or as required |
|
|
Deliver time |
According to order's quantity. |
|
|
Shipment |
By sea, by air, DHL, UPS, FedEx etc. or as required |
|
|
Application |
Electric light industry, machinery manufacturing, Building industry ,defense industry, and other fields Manufacturing industrial |
|
|
Standard |
ASTM,DIN,BS,CDA,JIS,GB |
||
|
Material |
T1,T2,C10100,C10200,C10300,C10400,C10500,C10700,C10800, |
||
|
Shape |
Square,Rectangular,etc. |
||
|
Specifications |
Diameter:3~200mm |
||
|
Length |
3m,5.8m, 6m, 11.8m, 12m, or as required. |
||
|
Hardness |
1/16 hard,1/8 hard,3/8 hard,1/4 hard,1/2hard,full hard,soft,etc |
||
|
Surface |
mill,polished,bright,oiled,hair line,brush,mirror,sand blast,or as required. |
||
|
Price term |
EXW, FOB, CFR, CIF, etc. |
||
|
Payment term |
T/T |
||
|
Package |
Export standard package: bundled wooden box, suit for all kinds of transport, |
||
|
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. |
||
|
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 |
|
Standard |
JIS ASTM DIN EN ISO |
|
Diameter |
0.3-5mm/custom |
|
Length |
custom |
|
Surface |
mill,polished,bright,mirror,hair line,brush,checkered,antique,sand blast,etc |
|
Application |
Building, industry etc |
|
Payment Terms |
T/T or L/C at sight |
|
Delivery time |
5-15 days after receiving L/C or deposit |
|
Remark |
Specific requirement of alloy grade,temper or specification can be discussed at your request |
