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Products Description
C44300 Admiralty Brass Tube & Pipe is made from Copper alloyed with Tin and Zinc. It is sometimes referred to as Arsenical Brass. C44300 Admiralty Brass Tube is primarily used in water heaters, heat exchanger applications and other similar equipment. C44300 Admiralty Brass Tube has good corrosion resistance, excellent heat transfer properties and is also used in Steam Condensers cooled with salt water, fresh water, or brackish water. C443000 Admiralty Brass Tube has additional applications in Oil and Gas systems as well where corrosion resistance is a key attribute. Other applications include Evaporator Tube, Distiller Tube, and Bourdon Tube.
Admiralty Brass tubes C44300 / CuZn28Sn1 / CZ111 Standard is ASTM B111
establishes the requirements for seamless tube and ferrule stock of copper and various copper alloys up to 3 Vs in. [80 mm] inclusive, in diameter, for use in surface condensers, evaporators, and heat exchangers. The following coppers and copper alloys are specified:
| Copper or Copper Alloy UNS NO. | Description |
| C44300/ CZ111/ C4430/ CuZn28Sn1 | Admiralty Metals, B, C, and D |
Standard: ASTM B 111/B 111M, BS2871, JIS H3300, DIN1785
Description Name: ASTM B111 copper tubes, C44300 copper tubes, C44300 Admiralty brass tubes, C44300 admiralty brass pipes, CZ111 admiralty brass tubes, CuZn28Sn1 admiralty brass tubes.
Size: 8mm to 76mm
Wall Thickness: 0.5 to 6mm
Shape: Round
Length: Single random length/ Double random length or as customer's actual request
Grade: C44300, C4430, CZ111, CuZn28Sn1
Chemical Composition:
| Designation | Chemical Composition % | ||||||||
| Cu | Sn | Al | As | Ni | Fe | Mn | Pb max. | Zn | |
| C44300
C4430 CZ111 CuZn28Sn1 |
70.0-73.0 | 0.9-1.2 | – | 0.02-0.06 | – | 0.06max | – | 0.07 | Rem |
The world standard Grade equivalent to ASTM B111
| Material Designation | Corresponding Material Symbol | ||||
| GB/T8890 | ASTM B111 | BS2871 | JIS H3300 | DIN1785 | |
| Copper-Nickel | BFe10-1-1 | C70600 | CN102 | C7060 | CuNi10Fe1Mn |
| BFe30-1-1 | C71500 | CN107 | C7150 | CuNi30Mn1Fe | |
| (BFe30-2-2) | C71640 | CN108 | C7164 | CuNi30Fe2Mn2 | |
| (BFe5-1.5-0.5) | C70400 | – | – | – | |
| B7 | – | – | – | – | |
| Aluminums Brass | HAL77-2 | C68700 | CZ110 | C6870 | CuZn20Al2 |
| Admiralty Brass | HSn70-1 | C44300 | CZ111 | C4430 | CuZn28Sn1 |
| Boric Brass | Hsn70-18 | – | – | – | – |
| HSn70-1 AB | – | – | – | – | |
| Arsenical Brass | H68A | – | CZ126 | – | – |
| Brass Tube | H65/H63 | C28000/C27200 | CZ108 | C2800/C2700 | CuZn36/CuZn37 |
Tensile Requirements
| Copper or Copper Alloy UNS NO. | Temper Designation | Tensile Strength, | Yield Strength, | |
| Standard | Former | min ksi | min ksi | |
| C44300 | O61 | annealed | 45 | 15 |
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 |
