GNEE can provide the form
Standard
ASTM B111 Standard Specification for Copper and Copper-Alloy Seamless Condenser Tubes and Ferrule Stock.
ASTM B111 C68700 Aluminum Brass Seamless Tubes up to 3 1 ⁄ 8 in. [80 mm] inclusive, in diameter, for use in surface condensers, evaporators, and heat exchangers.
ASTM B111 C68700 Aluminum Brass Seamless Tubes
Manufacture:Seamless process ,Cold-drawn
Wall thickness(WT): 0.5 mm-12.7 mm.
Outer diameter (OD): 5 mm-80 mm
Length: 6M or specified length as required.
Ends: Plain End, Beveled End, Treaded
Additional Info
Port of Shipment: Any Port, China
Payment Terms: T / T, LC
Delivery: 25 days after payment
Surface: Tubes will be varnished to prevent rust.
Marking: Standard + Steel Grade + Size + Heat No + Lot No
Package: Bundles (hexagonal),Wooden Boxes,Crates (steel/wooden) or as required
Materials and Manufacture
Materials:
material of manufacture will be a form of such purity and soundness as to be suitable for processing into the products ASTM B111 Standard.
When specified in the contract or purchase order that heat identification or traceability is required, the purchaser shall specify the details desired.
Manufacture:
C68700 Aluminum Brass Seamless Tubes will be manufactured by such hot-working, cold-working, annealing, straightening, trimming,and other processes as to produce a uniform seamless tube in the finished product.
C68700 Aluminum Brass Seamless Tubes will be hot- or cold-worked to the finished size, and subsequently annealed, when required, to meet the temper properties specified.
Equivalent Grade of C68700
| Material Designation | Corresponding Material Symbol | ||||
| GB/T8890 | ASTM B111 | BS2871 | JIS H3300 | DIN1785 | |
| Aluminums Brass | HAL77-2 | C68700 | CZ110 | C6870 | CuZn20Al2 |
Chemical Composition
| Designation | Chemical Composition % | ||||||||
| Cu | Sn | Al | As | Ni | Fe | Mn | Pb max. | Zn | |
| C68700 | 76.0-79.0 | – | 1.8-2.5 | 0.02-0.06 | – | 0.06 max | – | 0.07 | Rem |
Mechanical Properties
| Copper or Copper Alloy UNS NO. | Temper Designation | Tensile Strength | Yield Strength | Elongation in 2 in., |
|
| Code | Former | min ksi(min MPa) | min ksi(min MPa) | min % | |
| C68700 | O61 | annealed | 50(345) | 18(125) | --- |
Dimensions and Permissible Variations
Dimensions and Permissible Variations
| Outside Diameter, mm |
Wall Thickness, mm | ||||
| 0.508 | 0.813 | 0.889 | 1.07 | 1.24 and Over | |
| 0.559 | |||||
| 0.635 | |||||
| 0.711 | |||||
| Diameter Tolerance, Plus and Minus, mm | |||||
| Up to 12, incl | 0.076 | 0.064 | 0.064 | 0.064 | 0.064 |
| Over 12–18, incl | 0.10 | 0.10 | 0.10 | 0.089 | 0.076 |
| Over 18–25, incl | 0.15 | 0.15 | 0.13 | 0.11 | 0.10 |
| Over 25–35, incl | --- | --- | --- | 0.20 | 0.13 |
| Over 35–50, incl | --- | --- | --- | --- | 0.15 |
| Over 50–79, incl | --- | --- | --- | --- | 0.17 |
Wall Thickness Tolerances, Plus and Minus
| Wall Thickness,mm | Outside Diameter, mm | ||
| Over 12 to 25,incl | Over 25 to 50,incl | Over 50 to 80,incl | |
| 0.50, incl to 0.80 | 0.08 | --- | --- |
| 0.80, incl to 0. 90 | 0.08 | 0.10 | --- |
| 0.90, incl to 1.5 | 0.11 | 0.11 | 0.13 |
| 1.5, incl to 2.1 | 0.13 | 0.13 | 0.14 |
| 2.1, incl to 3.0 | 0.17 | 0.17 | 0.17 |
| 3.0, incl to 3.4 | 0.18 | 0.19 | 0.20 |
Length Tolerances
| Specified Length, mm | Tolerance, all Plus, mm |
| Up to 4500 | 2.4 |
| Over 4500–6000, incl | 3.2 |
| Over 6000–10 000, incl | 4.0 |
| Over 10 000–18 000, incl | 9.5 |
| Over 18 000–30 000, incl | 13.0 |
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) |
