C63000 (AMS 4640 - CDA 630) Aluminum Bronze alloy is an excellent choice for applications involving heavy loads, abrasive wear resistant, friction, abrasive wear and corrosion. The addition of nickel increases the alloys strength without diminishing its excellent ductility, toughness and corrosion resistance.
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C63000 Nickel Aluminum Bronze: Marine-Grade High-Strength Alloy
(UNS C63000 | AMS 4590 | CuAl11Ni5Fe3)
Cu 79% · Al 10-11.5% · Ni 4.5-5.5% · Fe 3.0-5.0% · Saltwater Warrior · Zero-Galling Champion
Product Overview: Engineered for Harsh Marine & Aerospace Service
Trusted by the U.S. Navy for submarine shafting and Siemens for hydroelectric turbines, C63000 nickel aluminum bronze delivers unmatched strength in corrosive environments. This hot-forged alloy withstands 15-knot seawater flow while offering 5× the fatigue life of manganese bronze. Certified to MIL-B-24480A, ASTM B150. and NORSOK M-650 for critical marine, energy, and defense applications.
Technical Parameters
| Property | C63000 Value | C95500 Bronze | 316L Stainless |
|---|---|---|---|
| Composition | Cu 79% min | Cu 86% | Fe 65% |
| Al 10-11.5% | Al 10-11.5% | Cr 17% | |
| Ni 4.5-5.5% | Ni 1.5% | Ni 12% | |
| Tensile Strength | 760-895 MPa | 620 MPa | 485 MPa |
| Seawater Corrosion Rate | 0.015 mm/yr | 0.045 mm/yr | 0.025 mm/yr |
| Cavitation Resistance | 0.9 mg/hr loss | 4.5 mg/hr | 3.8 mg/hr |
| Yield Strength | 370 MPa | 250 MPa | 170 MPa |
| Impact Toughness | 110 J @ -40°C | 60 J | 90 J |
| Max Service Temp | 400°C (750°F) | 260°C | 870°C |
Certifications: ASTM B150. AMS 4590. EN 1982. Lloyds Register Type 4
Top 4 Competitive Advantages
Superior Seawater Resistance
0 pitting after 10.000hr ASTM G85 salt spray testing
High Strength-to-Weight Ratio
40% stronger than C95500 bronze at same weight
Non-Sparking & Non-Magnetic
ATEX/IECEx certified for explosive environments
Lifecycle Cost Savings
60% lower TCO vs. super duplex steels in marine applications
Critical Performance Features
Biofouling Resistance: 75% less marine growth vs. brass (ISO 22196)
Cryogenic Stability: Maintains ductility at -196°C (LN2 temperature)
Stress-Corrosion Immunity: Passes ASTM G47 at 85% yield strength
Thermal Conductivity: 45 W/m·K (3× 316 stainless)
Wear Resistance: 210 HB hardness (as-forged condition)
Precision Manufacturing Process
1 Vacuum Induction Melting
Oxygen-free copper + Ni/Al/Fe master alloys under argon shield
2 Hot Forging
850-900°C forging → directional grain flow
3 Solution Treatment
850°C × 2hr + water quench
4 Precipitation Hardening
550°C × 4hr → peak strength condition
5 Quality Verification
100% PMI (OES) + ultrasonic testing + ASTM E10 hardness
Core Applications
| Industry | Critical Components | Standards |
|---|---|---|
| Marine Engineering | Propeller shafts, rudder bearings | MIL-S-24112. DNVGL |
| Energy | Hydro turbine shafts, pump impellers | IEC 60034. ASME PTC |
| Defense | Submarine components, torpedo tubes | MIL-B-24480. DEF STAN |
| Chemical | Acid pump casings, valve stems | ISO 5199. ASME B73.1 |
| Aerospace | Landing gear trunnions, actuator parts | AMS 4590. AS 4861 |
Top Search Keywords:
C63000 distributor | Nickel aluminum bronze shaft | Marine propeller alloy | Non-sparking bronze
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