C61300 Aluminum Bronze is a type of copper alloy that incorporates a higher aluminum content compared to C61000, enhancing its strength and resistance to corrosion, particularly in marine and acidic environments. Known for its excellent casting properties and machinability, C61300 is widely used in manufacturing components such as valves, pump parts, marine fittings, and fasteners that demand high durability and resistance to wear and corrosion.
Volume: 0
(UNS C61300 | ASTM B148 | SAE CA613 | DIN 1705)
90% Cu · 7% Al · 2% Sn · Saltwater Warrior · High Fatigue Resistance
Product Overview: The Offshore Workhorse
Trusted by Rolls-Royce Marine for propeller shafts and Schlumberger for subsea valves, C61300 combines exceptional seawater corrosion resistance with high fatigue strength. This tin-modified aluminum bronze withstands 15+ years in splash zones and high-stress marine environments, outperforming standard bronzes in cavitation resistance. Its unique composition prevents dezincification while maintaining 550 MPa tensile strength – making it the go-to alloy for critical offshore components.
Technical Parameters
| Property | C61300 Value | C95500 Bronze | 316 Stainless |
|---|---|---|---|
| Composition | Cu 87-91% | Cu 86% | Fe 67% |
| Al 6.0-8.0% | Al 11% | Cr 17% | |
| Sn 1.5-3.0% | Ni 4% | Ni 12% | |
| Tensile Strength | 550-655 MPa | 725 MPa | 515 MPa |
| Corrosion Rate (seawater) | 0.015 mm/yr | 0.03 mm/yr | 0.05 mm/yr |
| Fatigue Strength | 240 MPa (10⁷ cycles) | 200 MPa | 210 MPa |
| Thermal Conductivity | 52 W/m·K | 45 W/m·K | 16 W/m·K |
| Hardness | 170-210 HB | 200-240 HB | 150-220 HB |
Certifications: ASTM B148. NACE MR0175. ABS Type 2. Lloyd's Register, DNV-GL
Key Advantages
Unmatched Corrosion Fatigue Strength
Withstands 10⁹ stress cycles in seawater – 3x longer than C63000 nickel-aluminum bronze.
Anti-Galling Properties
30% lower friction coefficient than tin bronzes for bearing applications.
Machinability & Weldability
80% machinability rating (vs. 60% for C95400) with standard carbide tools.
Critical Performance Features
Cavitation Resistance: 4x longer lifespan in pump impellers vs. cast iron
Biofouling Resistance: Inhibits marine growth by 50% (ISO 22196 certified)
Stress-Corrosion Immunity: Zero cracking in sulfide environments per NACE TM0177
Thermal Stability: Maintains properties from -40°C to 400°C
Precision Manufacturing Process
1 Controlled Atmosphere Melting
92% recycled copper + Al/Sn master alloys → argon-shielded at 1.100°C
2 Sand/Centrifugal Casting
Low-pressure casting for complex geometries (min. 4mm walls)
3 Solution Treatment
Heat to 700°C → water quench for optimal α+κ phase formation
4 Precipitation Hardening
Aging at 500°C for 6 hours to enhance toughness
5 Surface Enhancement
Shot peening + Honing for Ra 0.4μm finish
Core Applications
| Industry | Critical Components | Standards Compliance |
|---|---|---|
| Marine Engineering | Propeller shafts, rudder bearings | ABS Type 2. DNVGL-CP-033 |
| Oil & Gas | Subsea connectors, valve stems | API 6A, NACE MR0103 |
| Power Generation | Turbine bushings, cooling jackets | ASME SB148. EN 10204-3.1 |
| Heavy Machinery | Crane sheaves, high-load bushings | ISO 9409. FEM 9.511 |
| Desalination Plants | High-pressure pump components | WRAS, NSF/ANSI 61 |
Top Search Keywords:
C61300 bronze price | Aluminum bronze propeller shafts | Marine corrosion-resistant alloy | ASTM B148 C61300
Please Feel free to give your inquiry in the form below. We will reply you in 24 hours.
Products
Phone
