Oct 29, 2025 Leave a message

UNS-C44300-Admiralty-Brass-Tube.pdf

ASME SB111 Admiralty Brass C44300 Tubing for heat exchanger equipment

GNEE can provide the form

C44300 Copper Rod

C44300 Copper Hose

C44300 Brass Sheet

Thick C44300 Copper Tape

Flexible C44300 Copper Wire

 

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

 

Annealed Copper TubeCopper Coil Tubes

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

 

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