UNS C44300 Admiralty Brass Tube PDF
Admiralty Brass (C44300) vs. Naval Brass (C46400)
Admiralty Brass (C44300) is more resistant to dezincification and is ideal for applications involving corrosive water like heat exchangers and condenser tubing, while Naval Brass (C46400) is stronger and harder due to a higher zinc and tin content, making it better for structural components like fasteners and tube sheets. The main difference lies in their composition: Admiralty Brass has added tin and a small amount of arsenic to inhibit dezincification, whereas Naval Brass contains a higher percentage of zinc and tin.
Admiralty Brass (C44300)
Composition: Approximately 70-73% copper, 0.9-1.2% tin, with a small amount of arsenic (to prevent dezincification), and the rest is zinc.
Key Property: Superior resistance to dezincification corrosion, especially in seawater, fresh, or brackish water.
Best For: Applications where corrosion resistance in water is critical, such as heat exchangers, condenser tubes, and other marine tubes.
Naval Brass (C46400)
Composition: Approximately 60% copper, 39.2% zinc, and 0.8% tin.
Key Property: Higher strength and rigidity compared to Admiralty Brass due to its higher zinc and tin content.
Best For: Structural applications where strength is the primary requirement, including fasteners (screws and bolts), propellers, shafts, and tube plates.
C44300 vs C46400
| Feature | Admiralty Brass (C44300) | Naval Brass (C46400) |
|---|---|---|
| Primary Use | Heat exchangers, condenser tubes | Fasteners, propellers, structural components |
| Key Advantage | High resistance to dezincification | High strength and rigidity |
| Composition | Cu: 70-73%, Sn: 0.9-1.2%, As: 0.02-0.06%, Zn: remainder | Cu: ~60%, Zn: ~39.2%, Sn: ~0.8% |
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Founded in 2008, we are a leading professional exporter specializing in a comprehensive range of high-quality copper products for global markets. Our core product portfolio encompasses various forms and specifications to meet diverse industrial needs.
Copper Tubes & Pipes:
We supply both Copper Seamless Tubes (ASTM B68, B75) and Copper Welded Tubes, including Pure Copper Tubes (C11000, C12200), Brass Tubes (C23000, C26000, C28000), and specialized Admiralty Brass Tubes (C44300) for superior corrosion resistance in heat exchanger applications. Our offerings comply with key ASTM standards such as ASTM B88 for seamless water tube and ASTM B111 for condenser tubes.
Copper Sheets & Plates:
Our range covers from thin-gauge Thin Copper Sheet (ASTM B152) to heavy-duty Thick Copper Plate, available in alloys like Pure Copper (C11000), Brass Sheet (C26000), Phosphor Bronze Sheet (C51000, C52100), and corrosion-resistant Admiralty Brass Sheet/Plate (C44300).
Copper Rods & Bars:
We provide Copper Round Rod, Copper Square Bar, Copper Hexagon Bar, and Copper Flat Bar in various tempers. Products include Free-Cutting Brass Rod (C36000 per ASTM B16), Oxygen-Free Copper Rod (C10100/C10200, ASTM B187), Beryllium Copper Bar (C17200, ASTM B196), and Admiralty Brass Rod (C44300).
Copper Wires & Strips:
Our Copper Wire products include Bare Copper Wire (ASTM B1/B2/B3), Enamelled Copper Wire, and Brass Wire. We also supply precision Copper Strip (C11000, C26800), Brass Strip, and Admiralty Brass Strip (C44300) for electrical, marine, and fabrication applications.
