GNEE can provide the form
Products Description
ASTM B111 ASME SB 111 C28000 Brass Seamless Tubes, C27000 have good flaring and bending properties, drawability and suitable for plating. Applicable to heat exchanger, curtain rod, sanitary tube, parts for various apparatuses and machinery, antenna rod, etc.
High ductility, high electrical and thermal conductivity, high impact strength,good creep resistance, ease of welding, and low volatility under high vacuum.
ASTM B111 / ASME SB 111 C28000 Brass Chemical Composition
| Grade | Fe | Cu | Pb | Zn |
| C28000 | 0.07 | 59.0-63.0 | 0.09 | remainder |
Typical Application of C28000
Architecture: Large Sheets, Architectural Panels, Large Architectural Trim, Sheet, Structural, Heavy Plate, Door Frames, Decoration, Hardware
Builders Hardware: Decorative Hardware
Fasteners: Bolts
Industrial: Heat Exchanger Tube, Valve Stems, Brazing Rod, Large Nuts and Bolts, Evaporator Tubes, Hot Forgings, Condenser Plates, Condenser Tube


Brass Seamless Tubes Chart
| Material Designation | Corresponding Material Symbol | ||||
| GB/T8890 | ASTM B111 | BS2871 | JIS H3300 | DIN 1785 | |
| Copper-Nickel | BFe10-1-1 | C70600 Pipe | CN102 | C7060 | CuNi10Fe1Mn |
| BFe30-1-1 | C71500 Pipe | CN107 | C7150 | CuNi30Mn1Fe | |
| (BFe30-2-2) | C71640 | CN108 | C7164 | CuNi30Fe2Mn2 | |
| (BFe5-1.5-0.5) | C70400 | – | – | – | |
| B7 | – | – | – | – | |
| Aluminium Brass | HAL77-2 | C68700 Tube | CZ110 | C6870 | CuZn20Al2 |
| Admiralty Brass | HSn70-1 | C44300 Tube | CZ111 | C4430 | CuZn28Sn1 |
| Boric Brass | Hsn70-18 | – | – | – | – |
| HSn70-1 AB | – | – | – | – | |
| Arsenical Brass | H68A | – | CZ126 | – | – |
| Brass Tubes | H65/H63 | C28000/C27200 | CZ108 | C2800/C2700 | CuZn36/CuZn37 |
Brass Seamless Tubes Standard Specification:
| COUNTRY | STANDARD | NAME |
| ASTM | ASTM B111 | Copper and Copper-Alloy Seamless Condenser Tubes and Ferrule Stock |
| GB/T | GB/T8890 | Seamless Copper Alloy Heat Exchanger Tubes |
| BS | BS2871 | Copper and Copper Alloys Tubes |
| JIS | JIS H3300 | Copper and Copper Alloy-Seamless Pipes and Tubes |
| DIN | DIN1785 | Wrought Copper and Copper Alloy Tubes for Condensers and Heat Exchangers |
Brass Heat exchanger Tube
| Alloy Number | Shape | OD | Wall |
| C68700 | Seamless Tube | 3mm to 70mm | 0.2mm to 5mm |
| CuZn20Al2As | Seamless Tube | 3mm to 70mm | 0.2mm to 5mm |
| C44300 | Seamless Tube | 3mm to 70mm | 0.2mm to 5mm |
| CuZn28Sn1As | Seamless Tube | 3mm to 70mm | 0.2mm to 5mm |
| C21000 | Seamless Tube | 3mm to 70mm | 0.2mm to 5mm |
| C23000 | Seamless Tube | 3mm to 70mm | 0.2mm to 5mm |
| C26000 | Seamless Tube | 3mm to 70mm | 0.2mm to 5mm |
| C27400 | Seamless Tube | 3mm to 70mm | 0.2mm to 5mm |
| C28000 | Seamless Tube | 3mm to 70mm | 0.2mm to 5mm |
| C33000 | Seamless Tube | 3mm to 70mm | 0.2mm to 5mm |
| C36000 | Seamless Tube | 3mm to 70mm | 0.2mm to 5mm |
| C37700 | Seamless Tube | 3mm to 70mm | 0.2mm to 5mm |
| C38000 | Seamless Tube | 3mm to 70mm | 0.2mm to 5mm |
| C44300 | Seamless Tube | 3mm to 70mm | 0.2mm to 5mm |
| C46400 | Seamless Tube | 3mm to 70mm | 0.2mm to 5mm |
| C48500 | Seamless Tube | 3mm to 70mm | 0.2mm to 5mm |
| C77000 | Seamless Tube | 3mm to 70mm | 0.2mm to 5mm |
Products provided by GNEE
| Product Category | UNS Numbers | Typical Sizes | Thickness/Diameter | Available Forms | Surface Treatment |
|---|---|---|---|---|---|
| Pure Copper | C10100, C10200, C10300, C10400, C10500, C10700, C10800, C10900, C11000, C11100, C11300, C11400, C11500, C11600, C12000, C12200 | 1000-6000mm (length) | 0.1-200mm | Sheet, Plate, Strip, Foil | Mill finish, Polished, Bright annealed, Oiled, Brush finished |
| Brass Alloys | C21000, C22000, C23000, C24000, C26000, C26800, C27000, C27200, C28000, C33000, C33200, C33500, C34000, C34500, C35000, C35300, C35600, C36000, C36500, C37000, C37700, C38500 | 500-4000mm (length) | 0.05-150mm | Rod, Bar, Wire, Tube | Polished, Chrome plated, Lacquered, Satin finish |
| Bronze Alloys | C51000, C52100, C52400, C53400, C54400, C63000, C63200, C64200, C65100, C65500, C65700, C67300 | 1000-3000mm (length) | 0.2-100mm | Bar, Rod, Plate, Strip | Polished, Oxidized, Oiled, Ground |
| Copper-Nickel | C70400, C70600, C71000, C71500, C72200 | 2000-6000mm (length) | 0.5-250mm | Tube, Plate, Sheet | Pickled, Passivated, Polished |
| Phosphor Bronze | C50100, C50500, C50700, C51000, C51100, C51900, C52100, C52400 | 500-2000mm (length) | 0.05-50mm | Strip, Wire, Sheet | Polished, Tin plated, Natural |




