One-Stop Precision Copper Profiles Manufacturer
Strategic non-ferrous manufacturing and customized engineering services provided by Shandong Baimaoxing Iron and Steel Co., Ltd.
Global Strategic Partner for High-Performance Metal Materials
Located in Liaocheng City, Shandong Province, China, Shandong Baimaoxing Iron and Steel Co., Ltd. is a leading comprehensive steel and non-ferrous enterprise integrating R&D, precision processing, custom fabrication, and international distribution.
Our diversified product portfolio covers carbon steel products (steel pipes, plates, round bars, coils, angle bars, flat bars, I-beams, galvanized coils, PPGI), stainless steel series, and advanced non-ferrous copper, brass, and aluminum profiles.
Adopting science-driven management and strict ISO/ASTM quality control standards, our conductive copper products are widely deployed in switchgear assemblies, electric vehicles (EV), renewable energy battery systems, power substations, HVAC, and industrial automation.
T2 (C11000) Material Parameters & Electrical Conductivity
In-depth metallographic properties, ampacity ratings, and chemical compositions for power distribution.
Conductive Efficiency
T2 electrolytic tough pitch (ETP) copper offers an electrical conductivity of ≥ 98.0% IACS with resistivity ≤ 0.01777 Ω·mm²/m at 20°C, significantly minimizing transmission losses and thermal buildup under high ampacity cycles.
Purity & Anti-Corrosion
With Cu ≥ 99.90%, low impurity levels (Pb, Fe, Zn ≤ 0.005%), and superior oxidation resistance, our copper profiles resist atmospheric moisture, non-oxidizing acids, and harsh industrial environments with longevity exceeding 30 years.
Mechanical Versatility
Available in Soft (O60), Half-Hard (H02/1/2H), and Hard (H04/H) tempers. Yields tensile strength from 215 to 395 N/mm² and elongation up to 40%, ensuring zero crack formation during tight-radius bending and punching.
Copper Chemical Composition & International Equivalence Standards
| China (GB) | UNS / ASTM | ISO Standard | JIS (Japan) | Cu % (Min) | Phosphorus (P) % | Oxygen (O) % | Total Impurity % |
|---|---|---|---|---|---|---|---|
| T2 | C11000 | Cu-RTP / Cu-FRHC | C1100 | ≥ 99.90% | - | ≤ 0.02 | ≤ 0.10% |
| TU1 | C10100 | Cu-OF | C1011 | ≥ 99.99% | 0.002 | ≤ 0.002 | ≤ 0.01% |
| TU2 | C10200 | Cu-OF | C1020 | ≥ 99.95% | 0.001-0.005 | ≤ 0.003 | ≤ 0.05% |
| TP1 | C12000 | Cu-DLP | C1201 | ≥ 99.90% | 0.004-0.012 | - | ≤ 0.10% |
| TP2 | C12200 | Cu-DHP | C1220 | ≥ 99.90% | 0.012-0.040 | - | ≤ 0.10% |
T2/TU1/TP2 Mechanical Temper Matrix
| Grade (GB/ASTM) | Temper Code | Condition State | Tensile Strength Rm (N/mm²) | Elongation A10 (%) | Hardness (HV) |
|---|---|---|---|---|---|
| T2 / C11000 | O60 (Soft) | Annealed Soft | ≥ 220 | ≥ 35% | ≤ 60 HV |
| T2 / C11000 | H01 / H02 | 1/4H to 1/2H Hard | 245 - 340 | ≥ 15% | 80 - 100 HV |
| T2 / C11000 | H04 / H06 | Full Hard / Extra Hard | ≥ 350 | ≥ 3% | ≥ 105 HV |
| TU1 / C10100 | O60 / H02 | Oxygen-Free ETP | 215 - 330 | ≥ 38% | ≤ 58 - 98 HV |
Current Load Ratings & Busbar Dimension Selection
Matching standard copper flat busbar and tube dimensions against critical operating currents to reduce energy loss.
| Continuous Current Load | Recommended Busbar Size (T × W) | Cross Section Area (mm²) | Approximate Weight (kg/m) | Typical Electrical Engineering Application |
|---|---|---|---|---|
| 100A – 250A | 3mm × 15mm / 3mm × 25mm | 45 – 75 mm² | 0.40 – 0.67 kg/m | Modular Circuit Breaker Panels, Terminal Connection Lugs |
| 400A – 630A | 5mm × 40mm / 6mm × 50mm | 200 – 300 mm² | 1.78 – 2.67 kg/m | Low-Voltage Distribution Boards, Solar Inverter Combiners |
| 800A – 1250A | 8mm × 80mm / 10mm × 80mm | 640 – 800 mm² | 5.69 – 7.12 kg/m | Industrial MCC Switchgear, Power Distribution Feeders |
| 1600A – 2500A | 10mm × 100mm (Double Bar Layer) | 1000 × 2 mm² | 8.90 × 2 kg/m | Transformer Secondary Links, Main Substation Incomers |
| 3150A – 5000A+ | 10mm × 120mm (3 to 4 Multi-Layers) | 3600 – 4800 mm² | 32.0 – 42.7 kg/m | Heavy Utility Busway Ducts, Battery Energy Storage Racks |
Skin Effect & Frequency
In high-frequency power electronics and 50/60Hz high-amp setups, rectangular busbars dissipate heat faster than round conductors. Multi-layer spacing optimizes air convection.
Tin / Nickel / Silver Plating
Electro-tin plating (3–12μm) prevents copper oxide films at joint interfaces, lowering contact resistance and preventing thermal runaway over extended service life.
Minimizing Joule Losses (I²R)
Selecting high-purity T2 material ensures line resistance stays strictly within design limits, cutting total energy dissipation across high-load grid networks.
Core Product Catalog: Copper Plates, Bars, Tubes & Brass Profiles
Manufactured strictly according to GB/T, ASTM, JIS, EN, and DIN industrial standards.
T2 / C11000 Electrical Conductive Copper Sheet & Plate
High conductivity copper plate with smooth surface finish and uniform thickness. Designed for electrical switches, transformer winding sheets, EDM electrodes, heat exchangers, and chemical containers.
- Thickness: 0.3mm – 100mm | Width: 50mm – 2500mm | Length: 1000mm – 12000mm
- Applicable Standards: GB/T 2058, GB/T 11091, ASTM B152, JIS H3300
- Surface Finishes: Mill finish, Bright, Polished, Hairline, Mirror, Brushed, Antique
T2 / TU2 / Silver Copper Conductive Rods & Bars
Solid drawn copper rods and extruded flat busbars engineered for high thermal transmission, electrical conductivity, and extreme mechanical strength. Widely applied in electrical switchgear, rail power contacts, and chemical valves.
- Diameter Range: 2mm – 600mm | Length: 50mm – 6000mm or cut-to-length
- Grades: T2, TU1, TU2, TP1, TAg0.1 (Silver Copper), C11000, C10100, CW008A
- Custom Fabrication: Bending, CNC drilling, punching, welding, decoiling
- Delivery Terms: FOB, CIF, CFR, FCA, DDP, DDU (10-15 working days)
Seamless Copper Tubes & Pancake Coils
Seamless drawn conductive and refrigeration grade copper pipes available in straight lengths and continuous pancake coils. Superior elongation (≥40%) ensures smooth bending without wall collapse or leakage.
- Outer Diameter: 3mm – 360mm | Wall Thickness: 0.1mm – 50mm
- Shapes: Round seamless pipe, rectangular hollow conductor, square copper tube
- Standards: ASTM B280, EN 12735-1, GB/T 1527, JIS H3300
- Key Applications: Water cooling conductive pipes, HVAC, transformers, high-current hollow busbars
High-Machinability Brass & Specialty Bronze Alloys
In addition to high-purity red copper, Shandong Baimaoxing supplies standard brass (H62, H65, H70, H80, H90, H96) and tin/nickel bronze alloys engineered for mechanical strength, valve production, precision hardware, and decorative architecture.
| Grade (GB) | UNS / ASTM | JIS Grade | Cu % | Pb % | Fe % | Zn % | Tensile Strength Rm (N/mm²) | Key Applications |
|---|---|---|---|---|---|---|---|---|
| H62 | C28000 | C2800 | 60.5 – 63.5 | ≤ 0.08 | ≤ 0.15 | Remainder | 320 – 490 | Conductive stampings, fasteners, radiator plates |
| H65 | C26800 | C2680 | 63.5 – 68.0 | ≤ 0.03 | ≤ 0.10 | Remainder | 295 – 440 | Deep-drawn components, electrical connectors |
| H70 | C26000 | C2600 | 68.5 – 71.5 | ≤ 0.03 | ≤ 0.10 | Remainder | 295 – 440 | Cartridge cases, heat exchanger tubes |
| H90 | C22000 | C2200 | 88.0 – 91.0 | ≤ 0.03 | ≤ 0.10 | Remainder | 225 – 365 | Architectural trim, conductive springs, medals |
Precision Fabrication & Processing Tolerances
Advanced CNC cutting, tight-radius bending, hole punching, and surface treatment capabilities.
CNC Shearing & Laser Cutting
High-speed fiber laser cutting and burr-free precision shearing for copper sheets up to 25mm thickness. Cut-edge verticality within 0.1mm.
Tolerance: ±0.02mm to ±0.05mmCNC Multi-Angle Bending
Eliminating tensile fracture through controlled grain-alignment bending (Flatwise & Edgewise bending up to 90°–180° without micro-cracks or orange peel).
Angle Tolerance: ±0.5°Stamping & Hole Punching
Round holes, slotted holes, chamfered edge radii, and countersunk configurations designed to match switchgear mounting bolts and busbar joints.
Hole Center Pitch: ±0.05mm
Engineering Supply Cases & Practical Applications
Proven track record supplying demanding infrastructure, new energy storage, and industrial facilities.
High-Voltage Switchgear & MCC Distribution Cabinets
Client: Leading European Power Equipment Fabricator
Material: T2 (C11000) Tin-Plated Copper Busbars (8×80mm & 10×100mm)
Key Challenge: Required zero-burr CNC punching with edge-radius R1.5 to eliminate electrical discharge at 35kV switchgear operation.
New Energy BESS (Battery Energy Storage System)
Client: Southeast Asian Megawatt Energy Storage Integrator
Material: Flexible Laminated & Solid T2 Copper Flat Busbars (3×30mm)
Key Challenge: High vibration absorption inside battery modules with insulation coating and tight space limits.
220kV Grid Substation Main Transformer Incomer
Client: National Power Transmission EPC Contractor
Material: Heavy Tubular Copper Conductors & Silver-Alloy Rods (TAg0.1)
Key Challenge: Extreme continuous ampacity (4000A+) with minimum thermal expansion under seasonal peak temperature swings.
Production Line, Processing Workshop & Jobsite Deployments
Export Packaging & Ocean Logistics Standards
Comprehensive anti-oxidation, moisture-proof, and sea-freight container loading protocols.
Multi-Layer Moisture & Surface Protection
- Surface Film: Neutral kraft paper interleaving and PE protective stretch film to eliminate surface scratching.
- Moisture Barrier: Desiccant bags and VCI anti-corrosion waterproof wrap prevents salt-mist oxidation.
- Reinforcement: Solid fumigated wooden cases (ISPM 15 compliant) or heavy wooden pallets banded with steel strapping.
Container Load Specifications
- 20ft GP Container: 5898mm (L) × 2352mm (W) × 2393mm (H) | Payload: 24–26 CBM (up to 27 MT)
- 40ft GP Container: 12032mm (L) × 2352mm (W) × 2393mm (H) | Volume: 54 CBM
- 40ft HC Container: 12032mm (L) × 2352mm (W) × 2698mm (H) | Volume: 68 CBM
Frequently Asked Questions (FAQ)
Essential technical and procurement details for international copper buyers.
Yes, absolutely. All copper products delivered by Shandong Baimaoxing Iron and Steel Co., Ltd. are supplied with official Mill Test Certificates in accordance with EN 10204 3.1. The MTC includes certified chemical composition, IACS electrical conductivity test results, tensile yield strength, elongation, and dimensional tolerance checks. Third-party inspection (SGS, BV, TUV) is supported.
We offer full-service precision machining based on customer CAD/DXF drawings. Our facilities feature CNC multi-station busbar processing machines, laser cutters, beveling tools, and plating lines (Tin, Nickel, Silver). We handle edge rounding (Full Radius / R-edge), 3D multi-axis bending, chamfering, and localized tin plating on busbar contact points.
For standard catalog sizes and in-stock items (such as T2 flat bars and standard pancake copper coils), our MOQ is as low as 500kg – 1000kg with immediate dispatch. For custom dimensional extrusions or specialized CNC fabrication, MOQ is typically 1,000kg with an expedited lead time of 10 to 15 business days.
T2 (C11000 ETP) contains a trace oxygen level (≤0.02%) and provides ≥98% IACS conductivity, offering the highest cost-to-performance ratio for switchboards, bus ducts, and transformers. TU1/TU2 (C10100/C10200 OF-Cu) has oxygen content ≤0.002% and conductivity ≥100% IACS, making it hydrogen-embrittlement resistant for vacuum electronics, electron tubes, and high-temperature brazing applications.
Ready to Optimize Your Power Conductor Solutions?
Contact Shandong Baimaoxing Iron and Steel Co., Ltd. for immediate technical consultation, customized dimension quotes, and full MTC certification files.
Sales Manager: Wendy
Phone / WhatsApp / WeChat: +86-15216350333
Official Email: baimaoxingsteel@gmail.com
Website: baimaoxingsteel.com