T2 Copper Bar | High Conductivity Copper Busbar, Custom Size China Supplier

Struggling with unstable power transmission, high resistance and short‑life conductors for your switchgear, energy storage or power cabinet projects? Our T2 copper bar, also known as high conductivity copper busbar, delivers minimum 99.90% copper purity to secure low‑resistance current flow, reduce heat generation and cut system failure risk. As a reliable China supplier, we produce custom size copper busbar matching your exact drawing, dimension and surface treatment requirements for industrial electrical applications worldwide.

Our T2 copper bar (C11000 / ETP copper) is high‑purity electrolytic tough‑pitch copper, widely applied as high conductivity copper busbar for heavy‑duty power transmission. This custom size copper busbar supports bare copper, tin‑plated, silver‑plated surface finish, available in flat, square, rectangular profiles. As a direct China supplier, we handle full customization including thickness, width, length, drilling, punching, bending and notching per client drawings. Every batch of T2 copper busbar strictly follows GB/T, ASTM B187 standards to guarantee stable electrical performance for switchgear, ESS battery racks, transformer, power distribution cabinets and grounding systems.

T2 Copper Bar, also known as ETP (Electrolytic Tough Pitch) Copper Bar, equivalent to ASTM C11000, is the most widely used high conductivity copper busbar material for electrical power transmission.

T2 copper features a minimum copper purity of 99.90% with low impurity levels. It delivers electrical conductivity ≥98% IACS, which makes it ideal for manufacturing custom size copper busbar. This copper bar exhibits great ductility, easy bending, punching, drilling and welding properties.

For buyers, choosing T2 copper bar is not only about the copper grade. Dimensions, electrical conductivity, temper, surface condition and the requirements of the finished component also need to match the application. HSMetal supplies T2 copper bar in custom sizes to help customers obtain the right material for their specific electrical and fabrication requirements.

• Superior Conductivity: T2 copper bar achieves ≥98% IACS electrical conductivity, excellent thermal performance for high‑current working conditions, ideal as high conductivity copper busbar for power‑intensive equipment
• High Purity: Cu ≥99.90%, low impurity content, effectively avoids overheating and voltage drop during current transmission
• Full Custom Size: We manufacture custom size copper busbar, customizable width, thickness, length, hole position, bending shape, OEM drawing service supported
• Multiple Surface Options: Bare T2 copper bar, tin‑plated copper busbar, nickel / silver plating for anti‑oxidation and corrosion‑resistant operating environment
• Good Processability: Easy cutting, punching, bending and welding; suitable for mass‑production electrical assembly
• Strict Quality Control: Mill test report (MTR) supplied, third‑party inspection acceptable for bulk orders
• Factory Direct China Supplier: Competitive ex‑work price, flexible MOQ, support bulk wholesale and project‑based orders

For international purchasing, T2 copper is commonly compared with C11000 ETP copper. C11000 is the UNS designation, while T2 is used in Chinese material standards. However, buyers should confirm the applicable standard and certificate requirements before treating one designation as a direct substitute.

For a critical project, confirm chemical composition, conductivity, dimensions, temper and applicable product standard before approving material substitution.

The right copper is determined by the application-not simply by choosing the highest-purity material.

If your application involves busbars, switchgear or power distribution, T2/C11000 is often a practical starting point. If your process involves special welding, brazing, vacuum or reducing-atmosphere conditions, a different copper grade may be more appropriate.

• Electrical & Power Distribution：For conductive components, power distribution equipment, switchgear and electrical assemblies.
• Copper Busbars：T2 copper busbar is used where high electrical conductivity and reliable current carrying are required.
• Transformers & Electrical Equipment：Suitable for conductive parts and electrical components where copper conductivity is important.
• Industrial Copper Components：Custom T2 copper bars can be processed into machined, formed or fabricated components according to drawings.
• Grounding & Conductive Components：Used for various grounding, connection and current-carrying components depending on the engineering specification.

We operate complete in‑house production lines for T2 copper bar, including continuous casting, hot rolling, cold drawing, rod straightening, precision cutting and surface finishing. We supply round T2 copper rod and flat high‑conductivity copper busbar, fully customizable per customer drawings.

Fitted with automated multi‑roll straightening equipment, our monthly output of T2 copper bar is over 600 tons. The straightening process removes rod deflection to guarantee high straightness and tight dimensional tolerance for further machining. Multiple surface finishes are available: bare, tin‑plated, silver‑plated and nickel‑plated.

Full inline quality control covers copper purity, conductivity, straightness and dimensions. We support sample trial and large‑volume project orders for global clients. MTR documents are supplied for each batch, complying with ASTM B187 and GB/T standards. Stable quality and reliable lead‑time are guaranteed for power distribution, switchgear and ESS projects.

Our Factory

 

Multiroll straightening unit for T2 copper bar straightened round rods copper busbar

Large‑diameter T2 copper rod high‑purity C11000 ETP copper bar in workshop

Finished T2 round copper bar after straightening, high‑purity copper rod ready for cutting & custom processing

T2 copper bar straightening line, round ETP copper rod under straightening process for high conductivity copper busbar

T2 copper busbar after straightening process, bare high‑conductivity copper for power equipment

Automated straightening machine for T2 round copper bar, bright electrolytic copper rod for electrical busbar

Looking for trustworthy China supplier for high‑quality T2 copper bar and custom size high conductivity copper busbar? Send your dimension, drawing or project requirements to us right now. Our technical sales team will review your specification and return a competitive quotation within 24 working hours. You can also request free sample of T2 copper bar for performance testing before bulk order.

Contact us to get tailored copper busbar solution for your power distribution, energy storage and electrical equipment projects.

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Explore our copper products →C11000 Copper Strip  | TU1/TU2 Oxygen Free Copper Rod  |  C11000 ETP Copper Strip

Q1: What is T2 copper bar?
A: T2 copper bar is a high-purity copper bar (≥99.9% Cu) with ≥98% IACS conductivity, commonly used as high conductivity copper busbar in switchgear, grounding, and electrical distribution.

Q2: What does T2 copper mean?
A: T2 is a Chinese grade for high-purity copper with Cu+Ag ≥99.90%, equivalent to C11000 and C1100. It offers ≥98% IACS conductivity.

Q3: Do you make solid copper rods?
A: Yes. Solid copper rods are available in T2/C11000 in round, flat, and square profiles with custom sizes.

Q4: How about T2 copper bar Data Sheet?
A: Key specs: Grade T2/C11000, Purity ≥99.90%, Conductivity ≥98% IACS, Density 8.9 g/cm³, Tensile Strength 200–350 MPa (state dependent).

Q5: How aboutT2 copper bar price?
A: Price depends on size, processing, quantity, and market copper prices. Contact us for a quote.

Q6: What is the chemical composition of T2 copper bar?
A: Cu+Ag ≥99.90%. Impurities: Sn ≤0.002%, Zn ≤0.005%, Pb ≤0.005%, Ni ≤0.005%, Fe ≤0.005%, O ≤0.06%.

Q7: What are the mechanical properties of T2 copper bar?
A: Soft state: Tensile ≥195 MPa, Elongation ≥30%. Hard state: Tensile 295–380 MPa, Elongation ≥3%.

Q8: Is T2 copper bar easy to machine?
A: Yes, it has good machinability but tends to be "sticky" - use sharp carbide tools, high RPM, and coolant to avoid built-up edge.

Q10: What is T2 copper bar used for?
A: Used as high conductivity copper busbar in switchgear, grounding, transformers, and electrical distribution, plus contacts and general industrial components.

Q11: Is T2 copper the same as C11000?
A: T2 and C11000 are commonly treated as corresponding ETP copper designations in international purchasing. However, the applicable standards, chemical composition and technical requirements should be confirmed before substitution.

Q12: Is T2 copper suitable for busbars?
A: Yes. T2 copper is commonly used for copper busbars and other electrical components where high conductivity is required.

Q13: Can you supply custom size copper busbar according to my drawings?

A2: Yes. As China supplier, we fully support custom size T2 copper bar. Send us your dimension sheet or technical drawing, we can produce copper busbar with exact width, thickness, length, holes and bending shape as required. Custom surface plating is also available.

Q14: What is the difference between T2 and oxygen-free copper?
A: T2 is an ETP copper grade, while oxygen-free copper such as C10100 or C10200 has different oxygen specifications. The appropriate grade depends on the application and processing conditions.

Q15: Why choose T2 as high conductivity copper busbar?

A1: T2 copper bar is ETP electrolytic tough pitch copper equivalent to ASTM C11000. With copper content ≥99.90%, it owns excellent electrical conductivity. That makes it the most popular material for high conductivity copper busbar for power distribution projects, balancing performance and cost‑effectiveness.

Q16: What's the difference between T2 copper bar and T1 copper bar?
A: T1 has higher purity (≥99.95%) and slightly better conductivity; T2 (≥99.9%) is more cost-effective and widely used for copper busbar and general electrical applications.

Q17: What is the conductivity of your T2 copper busbar?
A: Our T2 copper busbar typically reaches ≥98% IACS. Exact values are confirmed per order.

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