UNS C44300 Admiralty Brass

Alloy C44300 tubing,  Admiralty brass C44300,  Copper alloy C44300 sheet

Brass is a copper alloy with zinc and a small amount of other alloying such as Arsenic adding which can inhibit the corrosion and improve the corrosion resistance. Alloy C44300 also known as admiralty brass and has good mechanical properties. Brass C44300 of lkalloy supplying is available in tubing and sheet. C44300 brass tubing offers excellent cold workability for forming and bending, ideal for heat exchangers and pipes that transporting corrosive liquids.

Available Forms And Specifications

C17200 Beryllium Copper of LKALLOY supplying is available in tubing and plates.

Pipe/ tube: ASME SB111, ASTM B111;
ASME B395, ASTM B395
ASME B135, ASTM B135
Sheet/plate: ASME SB171, ASTM B171

Chemical Composition

Cu Zn Sn As S Pb Fe

(nominal 91.0%)

0.25-0.29 0.9-1.2 0.02-0.10 0.2 max 0.07 max 0.06 max

Mechanical Properties

Density  lb/in³ 0.308
Elastic Modulus(10⁶ psi) 16
Coefficient of Thermal Expansion (in./in./°F) 11.2 x10⁶
Thermal Conductivity (btu/ ft.hr.°F) 64
Melting Temperature °F 1650 ~ 1720
Tensile Strength ksi 53
Yield Strength 0.2% offset ksi 22
Elongation 65
Hardness (HB) 75


Brass C44300 is used where parts require good corrosion resistance and excellent heat transfer characteristics. Typical applications include military heat exchanger tubing, evaporator tubing, distiller tubes and so on.

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