ASME SB171 UNS C46400 Naval Brass Plate Forged Blank Circle Copper Alloy Forging Disc
ASME SB171 UNS C46400 Naval Brass Plate Copper Alloy Foging Disc for Heat Exchanger
Equivalent Grade of ASME SB171 UNS C46400 Naval Brass Plate Forged Circle Copper Alloy Forging Disc
| UNS | SAE | ISO | EN |
| C46400 | SAE J463 / CA464 | CuZn39Sn1 | CW712R (EN 12420) |
Chemical Composition of ASME SB171 UNS C46400 Naval Brass Plate Forged Circle Copper Alloy Forging Disc
| Element | Cu | Zn | Sn | Fe | Pb |
| % | 59.0 – 62.0 | Remainder (approx. 37-40%) | 0.50 – 1.00 | ≤ 0.10 | ≤ 0.20 |
Mechanical Properties of ASME SB171 UNS C46400 Naval Brass Plate Forged Circle Copper Alloy Forging Disc
| Temper | Tensile Strength (MPa) | Yield Strength (MPa) | Hardness (HBW) |
| Annealed (O60) | ≥ 450 | ≥ 200 | ~80 |
| Work Hardened | Up to 900 | Up to 490 | — |
| Standard Minimum | ≥ 345 | ≥ 125 – 140 | — |
Physical Properties of ASME SB171 UNS C46400 Naval Brass Plate Forged Circle Copper Alloy Forging Disc
| Parameter | Value | Unit |
| Density | 8.4 – 8.53 | g/cm³ |
| Melting Range | 885 – 900 | °C |
| Thermal Conductivity (20°C) | ~110 – 116 | W/(m·K) |
| Coefficient of Linear Expansion (0-250°C) | 21.2 | ×10⁻⁶/°C |
| Electrical Resistivity (15°C) | 6.5 | μΩ·m |
| Elastic Modulus | 100 – 117 | GPa |
| Relative Magnetic Permeability | 1.01 | — |
Quality Assurance & Testing (per ASME SB171)
When procuring this forged disc, the manufacturer must typically provide:
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Chemical Analysis Report (verifying Cu, Sn, Pb, Fe, Zn ranges).
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Mechanical Test Certificates (Tensile and Hardness).
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Ultrasonic Testing (UT) – to ensure internal soundness (no voids or laminations in the forging).
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Hydrostatic/Pressure Testing (if intended for pressure-retaining parts).
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Dimensional Inspection – verifying outside diameter (OD), inside diameter (ID if ring), and thickness conform to the forging print.
Application
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Marine Hardware: Propeller shafts, stern tube bushings, and pump housings.
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Valve Components: Valve seats, stems, discs, and flanges for high-pressure seawater piping (per ASME B16.24).
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Industrial Fasteners: Heavy-duty nuts and bolts where galling resistance is required.
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Heat Exchangers: Tube sheets and baffle plates.
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Power Generation: Condenser components and turbine fittings.
PT TEST
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