C44300 Admiralty Brass, also sometimes referred to as Arsenical Brass, is copper that is alloyed with tin and zinc.
Brass 443 tubes have long been used in heat exchangers and condensers because of the good corrosion resistance and excellent heat transfer characteristics of C443.  Inhibited 44300 Admiralty Brass has found use in fresh, brackish and salt water applications, as well as oil and gas systems, where its combination of corrosion resistance, heat transfer rates and lower material cost is valued.  C44300 brass is most commonly stocked in tube and plate form.

Marmetal stocks C44300 Admiralty Brass in tube form.

Available Shapes for C44300 Admiralty Brass:

PLATE  ::  TUBE

Specifications for C44300 Admiralty Brass

  ASTM ASTM ASME ASME
Tube ASTM B111 ASTM B359 ASME SB-111 ASME SB-359
Plate ASTM B171 ASTM B432 ASME SB-171  

Mechanical Properties for C44300 Admiralty Brass

TUBE          
Commercial
          
  TEMPER SIZE TENSILE, KSI, MIN YIELD@0.5%, KSI, MIN Elong. % Min
  O61 all sizes 45 15  
           
PLATE          
Commercial
          
  TEMPER SIZE TENSILE, KSI, MIN YIELD@0.5%, KSI, MIN Elong. % Min
  M20 under 4″ 45 15 35
  O25 under 4″ 45 15 35

Compositions for C44300 Admiralty Brass

COMMERCIAL
              
  UNS No. Copper Tin Lead Iron Arsenic Zinc
  C44300 70.0-73.0 0.9-1.2 0.07 max 0.06 max 0.02-0.06 remainder

Physical Properties for C44300 Admiralty Brass

Density @ 68o F 0.308 lb/in3
Melting Range 1650-1720o F
Hot Formability Fair
Cold Formability Excellent
Machinability rating (C360 = 100) 30
Brazing Excellent
Soldering Excellent
Gas-shielded arc welding Fair
Oxy-acetylene welding Good
Carbon-arc welding Not recommended
Coated metal-arc welding Not recommended
Resistant welding: spot and seam Good
Resistance Welding: butt Good

Applications for C44300 Admiralty Brass

* Distiller Tubes
* Evaporator Tubes
* Oil Well Pump Liners
* Ferrules
* Condenser Plates
* Bourdon Tubes
* Heat Exchanger Tubes
Click here to download the C44300 Admiralty Brass PDF