Product Introduction
CoreMetal’s C46400 naval brass bars are composed of copper-zinc alloy with approximately 1% tin addition, providing excellent resistance to dezincification and impingement attack in seawater and brackish water environments. This admiralty-grade brass offers superior strength, good machinability, and exceptional corrosion resistance, making it the material of choice for marine hardware, heat exchangers, and naval applications worldwide.
Key Specifications
| Parameter | Details |
| Standards | ASTM B21/B21M, SAE AMS4611J, ASTM F468 |
| Grade | C46400 (Naval Brass, CuZn39Sn1) |
| Composition | Cu: 59-62%, Zn: remainder, Sn: 0.5-1.0%, Fe: ≤0.10% |
| Diameter | 6mm – 250mm (round), custom profiles available |
| Shape | Round bar, Hexagonal bar, Square bar, Custom profiles |
| Surface Finish | Black bar, Pickled, Drawn, Turned, Polished |
| Temper | H02 (Half-hard), H04 (Hard), H06 (Extra-hard), M20 (As-drawn) |
Product Features
✅ Superior Seawater Resistance – Tin addition provides excellent resistance to dezincification and impingement attack in marine environments.
✅ High Strength – Tensile strength up to 470 MPa in hard temper, suitable for structural marine applications.
✅ Excellent Machinability – Free-cutting properties with good chip formation; ideal for precision-machined components.
✅ Good Hot Workability – Easily forged, extruded, and formed at elevated temperatures.
✅ Weldable – Can be successfully welded using gas, arc, and resistance methods with appropriate procedures.
✅ Anti-Biofouling Properties – Naturally resistant to marine organism attachment, reducing maintenance requirements.
Applications
| Industry | Applications |
| Marine & Naval | Propeller shafts, seawater piping, valve stems, marine hardware |
| Heat Exchangers | Condenser tubes, heat exchanger plates, cooling system components |
| Shipbuilding | Rudder stocks, stern shafts, deck fittings, porthole frames |
| Offshore | Platform hardware, subsea connectors, mooring components |
| Industrial | Pump shafts, bearing housings, valve bodies |
| Architecture | Decorative marine hardware, nautical fittings |
Hot Tags
C46400 brass bar, naval brass, admiralty brass, CuZn39Sn1, brass alloy bar, marine brass, seawater resistant brass, ASTM B21 brass, turnbuckle brass, propeller shaft brass, China brass manufacturer
