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.
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
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TEMPER | SIZE | TENSILE, KSI, MIN | YIELD@0.5%, KSI, MIN | Elong. % Min | |
O61 | all sizes | 45 | 15 | ||
PLATE | |||||
Commercial
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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
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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
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* Evaporator Tubes
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* Oil Well Pump Liners
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* Ferrules |
* Condenser Plates
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* Bourdon Tubes
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* Heat Exchanger Tubes
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