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Products Description
ASTM B111 C68700 tubes provide more than just corrosion resistance and thermal conductivity; their workability allows for effortless fabrication and installation. We can shape these tubes to meet specific design requirements easily, providing seamless integration into various systems and equipment. Due to this versatility, engineers and designers often turn to them when seeking reliable tubing solutions for their projects.
ASTM B111 establishes stringent manufacturing and quality control standards for C68700 aluminum brass tubes manufactured under its auspices, to ensure consistent performance and reliability across the board. Each tube undergoes stringent tests to meet mechanical, chemical, dimensional, and customer performance requirements and ensure they provide customers with confidence in its performance and durability.
ASTM B111 C68700 tubes find use across numerous industries, from shipbuilding and power generation to chemical processing and automotive production. From heat exchangers, condensers, evaporators or hydraulic systems – ASTM B111 C68700 tubes provide exceptional performance and reliability to stand up against harsh operating environments.
ASTM B111 C68700 Aluminium Brass Tubes Chemical Composition
| Standard | BS 2871 PART3 | ASTM B 111 | DIN 1785 | NFA 51 102 | JIS H3300 | IS 1545 |
| Symbol | CZ 110 | C 68700 | CuZn20AI2 | CuZn22AI2 | C 6870 | CuZn21AI2As |
| Cu | 76.0-78.0 | 76.0-79.0 | 76.0-79.0 | 76.0-79.0 | 76.0-79.0 | 76.0-78.0 |
| Al | 1.8-2.3 | 1.8-2.5 | 1.8-2.3 | 1.8-2.5 | 1.8-2.5 | 1.8-2.3 |
| Pb | 0.07 | 0.07 | 0.07 | 0.07 | 0.07 | 0.07 |
| Ni | – | – | 0.1 | – | – | – |
| Fe | 0.06 | 0.06 | 0.07 | 0.06 | 0.06 | 0.06 |
| Zn | REM'DER | REM'DER | REM'DER | REM'DER | REM'DER | REM'DER |
| As | 0.02-0.06 | 0.02-0.06 | 0.02-0.35 | 0.02-0.06 | 0.02-0.06 | 0.02-0.06 |
| P | – | – | 0.01 | – | – | – |
| Total Impurities Max. | – | |||||
| 0.03 | – | 0.1 | 0.3 | – | 0.3 | |
| Condition | M | 61 | F39 | – | O | O |
| TA | – | F34 | – | – | TA | |
| O | – | – | – | – | D | |
| Yield Strength n/mm2 | – | 125 | 1 50-230 | – | – | 400Mpa Max. |
| – | 105 | 120-180 | – | – | 355Mpa Min. | |
| – | – | – | – | – | 415Map | |
| Tensile n/mm2 Minimum | – | 345 | 390 | – | 373 | – |
| – | – | 340 | – | – | – | |
| Elng'Tion Percent (%) | – | – | 45Min. | – | 40Min. | 85Max. |
| – | – | 55Min. | – | – | 80-110 | |
| – | – | – | – | – | 130Min. | |
| Hardness HV5 – | 150Min | – | – | 80-130 | – | – |
| 85-110 | – | – | – | – | – | |
| 75Max. | – | – | – | – | – | |
| Grain Size mm (75X) | 0.05Max. | 0.010-0.045 | – | 0.010-0.045 | 0.010-0.045 | 0.010-0.045 |
ASTM B111 C68700 Aluminium Brass Tubes Mechanical Properties
| Coefficient of Thermal Expansion | 10.3 10−6Per °F (68-572 F) |
| Density | 0.301 lb/in3 at 68 F |
| Electrical Conductivity | 23 %IACS @ 68 F |
| Electrical Resistivity | 45.1 ohms-cmil/ft @ 68 F |
| Melting Point Liquid US | 1780 F |
| Melting Point Solid US | 1710 F |
| Modulas of Elasticity in Tension | 16000 ksi |
| Modulas of Rigidity | 6000 ksi |
| Specific Gravity | 8.33 |
| Specific Heat Capacity | 0.09 Btu/lb/°F @ 68 F |
| Thermal Conductivity | 58.0 BTU in/hr.ft2.°F @ 68 F |
Application Industries for ASTM B111 C68700 Aluminium Brass Tubes
Plumbing and HVAC
Marine
Heat Exchangers
Condenser
Automotive
Electrical and Fuel Gas
Products provided by GNEE
| Product Category | Standard & Material | Available Forms | Thickness / Diameter Range | Width / OD Range | Length / Form | Temper / State | Surface Finish |
|---|---|---|---|---|---|---|---|
| Copper Sheet & Plate | ASTM B152, B187 Pure Copper (C11000) Phosphor Bronze, Brass |
• Coil • Sheet • Plate |
Sheet: 0.3 mm - 10.0 mm Plate: 10.0 mm - 100 mm |
100 mm - 2500 mm | Coil: Custom Sheet/Plate: 1000mm - 6000mm or Custom |
• O (Soft Annealed) • H02 (Half-Hard) • H04 (Hard) • H08 (Full-Hard) |
• Mill (Bare) • Clad • Brushed • Coated |
| Copper Rod & Bar | ASTM B133, B187 Pure Copper, Tellurium Copper Brass, Bronze |
• Round Rod • Square Bar • Hexagonal Bar • Flat Bar |
Rod Dia.: 2.0 mm - 300 mm Flat Bar Thk.: 3 mm - 50 mm |
Flat Bar Width: 10 mm - 400 mm | Straight: 1000mm - 6000mm Coil (for small dia.) |
• Annealed (Soft) • Half-Hard • Hard • As Drawn |
• Drawn (Smooth) • Turned (Peeled) • Ground (Polished) |
| Copper Wire | ASTM B1, B3 Bare Copper, Tinned Copper |
• Bare Wire • Tinned Wire • Stranded Wire • Braided Wire |
Solid Wire: 0.05 mm - 10.0 mm Stranded: Custom (e.g., 7/0.2mm) |
- | Coil, Spool, Reel Weight: Custom (e.g., 5kg, 25kg) |
• Soft (Annealed) • Hard Drawn • Medium-Hard |
• Bright Bare • Electrotinned • Oxidized-Resistant |
| Copper Tube & Pipe | ASTM B75, B88 Seamless, Welded DHP Copper (C12200) |
• Straight Tube • Coiled Tube • Capillary Tube • Square Tube |
OD: 3 mm - 300 mm Wall Thk.: 0.5 mm - 10.0 mm |
- | Straight: 1000mm - 8000mm Coil: Custom Length |
• Annealed (Soft, Bendable) • Hard Drawn (Straight) |
• Bare (Clean) • Polished • Plastic Capped |
| Copper Foil | ASTM B370 Rolled Annealed (RA) Electrodeposited (ED) |
• Roll / Coil • Strip |
Thickness: 0.01 mm - 0.50 mm (10 µm - 500 µm) |
10 mm - 1300 mm | Coil: Custom Length | • As Rolled (Hard) • Annealed (Soft, Ductile) • Laminated |
• Standard (One Side Bright) • Double Side Bright • Treated (for PCB) |
