Copper Alloy 443 (C44300)
Admiralty(Arsenical) Brass Tubing
Alloy C443 tubing, also known as Admiralty Brass, is a copper-zinc-tin alloy and, like other brass alloys, it has excellent corrosion resistance. It is commonly used in heat exchangers, condensers and piping systems in industrial and marine environments.
C443 Copper Alloy Designations
- UNS Number: C44300
- CDA Number: 443
- EN Number: CW706R
- EN Symbol: CuZn20AlAs
- Wieland: S62
Chemical Composition:
- Copper (Cu): 70.00 – 73.00%
- Iron max (Fe): 0.06%
- Lead max (Pb): 0.90%
- Zinc (Zn): 20%
- Arsenic (As): 0.02 – 0.06%
- Tin (Sn): 0.80 – 1.20%
Custom Engineered Shapes and Custom Fabricated Parts are available on request.
Forms Available:
Straight Lengths
- OD: 0.125″ to 2.000″
- Wall Thickness: 0.015″ to 0.125″
- Length: 0.125″ to 504″
Equivalent Standards
- ASTM: B111, B135, B543,
- ASME: SB111, SB543
- DIN: 1785
- EN: 12451
- JIS Standard: H3300
- Please reach out if you have a specific material specification you need us to review.
Industry Applications
Marine
- Seawater piping
HVAC
- Chillers
- Cooling towers
Fluid & Gas Lines
- Medical
- Oil and gas
- Distillery
- Hydraulic
- Chemical
- Refrigeration
Thermal
- Cooling systems
- Steam condensers
- Heat exchangers
- Distillery
- Chemical processing
- Aerospace and defense
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