GNEE can provide the form
Products Description
GNEE is a renowned manufacturer and supplier of C44300 naval brass tubing. Naval brass tubing offers excellent corrosion resistance, making it particularly suitable for steam condenser piping cooled by fresh, brine, or brackish water. It is also used in heat exchangers in oil refineries, environments where corrosion from sulfides and wastewater can be severe; furthermore, it is used in feedwater heaters, heat exchanger equipment, and other industrial processes.
Naval brass tubing is a zinc-copper alloy containing trace amounts of arsenic and zinc. These tubings are renowned for their excellent corrosion resistance, performing admirably in polluted rivers, clean seawater, and slow-moving and still water. Due to its durability, flexibility, heat resistance, and long service life, naval brass tubing is widely used in many critical applications. This brass contains 30% zinc and 1% arsenic, inhibiting arsenization in various atmospheres, thus making it widely used in tubing manufacturing. It also possesses numerous excellent properties such as high thermal conductivity, high strength, light weight, and corrosion resistance.
Specification of Admirality Brass Tubes Composition
| Specifications : |
ASTM B111 / ASME SB111 |
|---|---|
| Standard |
DIN 17660, DIN 17671-1, ASTM B135-10, JIS H3300, JIS H 3300 C 2600 |
| Width |
4 MM to 406 MM |
| Hardness | Soft, Quarter Hard, Half Hard, 3/4 Hard, Hard, Extra Hard and Spring Hard. |
| Type |
Seamless / ERW / Welded |
| Form | :nRound, Square, Rectangular, Hydraulic Etc |
| Length |
nSingle Random, Double Random & Cut Length. |
| End | Plain End, Beveled End, Treaded |


Admirality Brass Tubes Composition
|
Copper |
70.0 to 73.0% |
|---|---|
|
Tin |
1.0 to 1.5% |
|
Arsenic |
0.02 to 0.06% |
|
Zinc |
Remainder |
|
Total Imp. |
0.30% max. |
Admiralty Brass C44300 Tube Physical Properties:
|
Condition |
Hardness |
|---|---|
|
Annealed (O) |
75 max |
|
Temper Annealed (TA) |
80 to 105 |
|
As manufactured (M) |
150 min. |
Mechanical Properties of Admiralty Brass C44300 Tubes
|
Properties * |
Metric |
English |
|---|---|---|
|
Density |
8.53 g/cc |
0.308 lb/in³ |
|
Tensile Strength, min. |
310 MPa |
45 ksi |
|
Yield Strength, min. |
105 MPa |
15 ksi |
|
CTE, linear |
20.2 10-6/°C @ 20.0 – 300 °C |
11.2 10-6/°F @ 70.0 – 570 °F |
|
Specific Heat Capacity |
0.09 cal/g-°C @ 20ºC |
0.09 BTU/lb-°F @ 70ºF |
|
Thermal Conductivity |
109 W/m-K @ 20.0 °C |
64 BTU/ft2/ft/h/°F @ 70.0 °F |
|
eltinMg Point |
899 ~ 938 °C |
1650 ~ 1720 °F |
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 |




