ASTM B111 C71500 Copper Nickel Tubes
What is SB 111 706 material?
ASTM SB 111 defines requirements for ‌seamless copper-nickel alloy tubes‌ (including C70600) used in ‌surface condensers, evaporators, and heat exchangers‌. Key aspects include:
‌Material Scope‌: Covers UNS C70600 (90/10 Cu-Ni alloy) with nickel content of 9.0–11.0% and trace iron (1.0–1.8%)/manganese (0.5–1.0%) for enhanced corrosion resistance.
‌Manufacturing Process‌: Tubes must meet dimensional tolerances, chemical composition, and mechanical property criteria (e.g., tensile strength ≥275 MPa, elongation ≥35%).
‌Corrosion Testing‌: Requires compliance with ‌ASTM B117 salt spray tests‌ (1,000+ hours without rusting) for seawater applications.
Physical Properties of C71500 Copper
| Property | Value |
|---|---|
| Density | 8.94 g/cm³ |
| Modulus of Elasticity | 150 GPa |
| Melting Point | 1170°C |
| Thermal Expansion | 16.2 µm/m-°C |
| Thermal Conductivity | 29 W/m-K |
| Electrical Conductivity | 5% IACS |
Mechanical Properties of C71500 Copper
| Property | Value (Annealed) | Value (Cold-Worked) |
|---|---|---|
| Tensile Strength | 380 MPa | 520 MPa |
| Yield Strength | 125 MPa | 200 MPa |
| Elongation | 30% | 15% |
| Hardness (Rockwell) | B65 | B90 |
Electrical Properties of C71500 Copper
| Electrical Property | Value |
|---|---|
| Electrical Conductivity | 5% IACS |
| Electrical Resistivity | 3.4 x 10^-7 Ω·m |
Thermal Properties of C71500 Copper
| Thermal Property | Value |
|---|---|
| Thermal Conductivity | 29 W/m-K |
| Specific Heat Capacity | 0.380 J/g-K |
| Thermal Expansion | 16.2 µm/m-°C |
Processing Properties of C71500 Copper
| Process | Suitability |
|---|---|
| Machining | Moderate |
| Welding | Excellent, especially with TIG and MIG welding |
| Forming | Good, suitable for various applications |
| Annealing | Effective for relieving stress |
Product Applications
1. Marine Engineering: Seawater cooler pipes, ship propellers, offshore platform components.
2. Chemical Equipment: Distillation towers, reactors, heat exchanger sleeves.
3. Power Industry: Nuclear plant condensers, heat exchangers.
4. Aerospace: Engine components, hydraulic system pipelines.
Product Forms We Can Provide
| Product Category | Material Standards | Common Alloys | Key Specifications (Can be Customized) |
|---|---|---|---|
| Copper Tubes | ASTM B75, B88, B280,B111; EN 12449, 12451; DIN EN 12735; JIS H3300 | C10100 (OFE), C11000 (ETP), C12200 (DHP), C23000, C70600,C71500 | OD: 3mm - 300mm Wall Thickness: 0.5mm - 20mm Temper: Soft (O), Half-Hard (H50), Hard (H80) Form: Straight Lengths, Coils, U-Bends |
| Copper Sheets / Plates | ASTM B152, B248, B248M; EN 1652; DIN 1787; JIS H3100, H3250 | C10100 (OFE), C11000, C10200 (OF), C26000, C86200 | Thickness: 0.3mm - 100mm Width: Up to 1200mm Length: Up to 3000mm (or coils) Surface: Mill, Polished, Brushed |
| Copper Rods / Bars | ASTM B187, B301, B411; EN 12163, 12164; DIN 17672; JIS H3250 | C10100 (OFE), C11000, C14500, C36000, C63000 | Diameter/Rect. Size: 3mm - 300mm Shape: Round, Square, Hexagonal, Rectangular Condition: Drawn, Extruded, Hot Rolled |
| Copper Wires | ASTM B1, B2, B3, B258; EN 13601; IEC 60228; JIS H3100 | C10100 (OFE), C11000, C14420, C14500 | Diameter: 0.1mm - 20mm Temper: Soft, Annealed, Hard-Drawn Form: Bare, Tinned, Stranded, on Spools |
| Copper Foils / Strips | ASTM B103, B370; EN 1652; DIN 1787; JIS H3100 | C10100 (OFE), C10200, C11000, C19400, C26800 | Thickness: 0.02mm - 2.0mm Width: Up to 600mm Temper: Rolled, Annealed |
| CNC Machining Parts | As per Customer Drawing/Req. | All Common Copper Alloys (including C10100, C11000, C86200, etc.) | Process: Turning, Milling, Drilling, Tapping Tolerance: ±0.005mm - ±0.1mm Post-Processing: Deburring, Polishing, Plating |
Our factory
Our manufacturing facility operates a comprehensive and modern production line, equipped with advanced continuous casting, precision rolling, high-speed drawing, and multi-axis CNC machining centers, enabling us to process copper and copper alloys (such as C10100, C11000, C12200, C71500,C70600 etc.) into a full range of products including tubes, sheets, rods, wires, and foils. To ensure top-tier quality, we have implemented a rigorous in-process and final inspection system, utilizing state-of-the-art equipment such as spectrometers for material verification, digital tensile testers for mechanical property checks, precision dimensional gauges, and eddy current or ultrasonic testers for defect detection, guaranteeing that every product meets or exceeds international standards such as ASTM, EN, and JIS, as well as specific customer requirements.
Pre-shipment inspection
We provide engineering-grade protective packaging for each and every product. Whether it's heavy copper tubes and plates, or precision rods, wires, and ultra-thin foils, we employ multi-layer composite protection: the inner layer uses scratch-resistant PE film and custom padding for physical isolation and cushioning; the middle layer is treated with moisture-proof sealing and includes desiccants; the outer layer utilizes reinforced wooden crates or high-strength waterproof wrapping film, depending on the shape and weight, for stabilization and protection. This ensures that the products withstand moisture, oxidation, and impact during long-distance sea or land transportation, arriving in perfect condition at your site. In terms of delivery, we commit to efficiency and reliability: standard specification products can be prepared and shipped within 7-15 working days, while customized products will also enter production scheduling promptly. We maintain full transparency throughout the process, allowing you to precisely control timelines and ensure your project proceeds as planned.
