C95800 offers superior salt water corrosion resistance. It also is resistant to cavitation and erosion. Along with the advantage of pressure tightness, this high strength alloy is excellent for welding and is available in many forms at a lower cost to you.
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(ASTM B148 C95800 | UNS C95800 | ISO 1640 CuAl10Ni5Fe4)
Cu 81% · Al 9% · Ni 5% · Fe 4% · 25+ Year Seawater Lifespan · Zero Lead Content
Product Overview: The Saltwater Specialist
Trusted by Shell for offshore valve systems and NASA for launch pad components, C95800 sets the benchmark for marine corrosion resistance. This nickel-modified aluminum bronze withstands 30+ knot seawater flow, high-pressure cavitation, and subzero Arctic temperatures. With <0.01% lead content, it meets global environmental regulations while delivering 790 MPa tensile strength – making it the top choice for mission-critical marine infrastructure.
Technical Parameters
| Property | C95800 Value | 316L Stainless | C95500 Bronze |
|---|---|---|---|
| Composition | Cu 79-85% | Fe 65% | Cu 79% |
| Al 8.5-9.5% | Cr 17% | Al 11% | |
| Ni 4.0-5.5% | Ni 13% | Ni 5% | |
| Tensile Strength | 790 MPa | 485 MPa | 725 MPa |
| Seawater Corrosion Rate | 0.005 mm/yr | 0.10 mm/yr | 0.03 mm/yr |
| Cavitation Erosion | 12 mg/hr (ASTM G32) | 60 mg/hr | 45 mg/hr |
| Max Service Temp | 400°C (752°F) | 425°C (797°F) | 260°C (500°F) |
| Impact Toughness | 75 J @ -40°C | 30 J @ -40°C | 45 J @ -40°C |
Certifications: NACE MR0175. ASTM B148. RoHS/REACH, ABS Type 9. DNVGL-CP-033
Key Advantages
Unrivaled Cavitation Resistance
5x longer service life in pump impellers vs. cast iron (per Sulzer Hydraulic Institute tests).
Lead-Free Compliance
Meets EU Directive 2023/1907 & US Safe Water Act standards.
Biofilm Immunity
Reduces barnacle adhesion by 90% (ISO 22196 certified).
Machining Efficiency
70% faster machining vs. C95500 with standard carbide tools.
Critical Performance Features
Stress-Corrosion Cracking Immunity: Passes NACE TM0177 Method A at 90% AYS
Thermal Stability: Maintains properties from -196°C to 400°C
Galvanic Safety: 0.05V potential difference with titanium alloys
Magnetic Transparency: Permeability <1.02 (ideal for sonar systems)
Dezincification Resistance: ISO 6509 Class A (<50 μm penetration)
Precision Manufacturing Process
1 Electric Arc Melting
99.99% pure copper + aerospace-grade Al/Ni under argon shield
2 Investment Casting
Ceramic molds for complex geometries (min. wall: 4mm)
3 Solution Treatment
900°C × 3hr → water quench
4 Precipitation Aging
550°C × 6hr → forced-air cooling
5 Quality Verification
100% UT per ASTM E164 + PMI testing (OES)
Core Applications
| Industry | Critical Components | Standards |
|---|---|---|
| Marine Engineering | Propellers, rudder bearings | ABS Type 9. Lloyds Reg |
| Offshore Oil/Gas | X-mas tree valves, BOP systems | API 6A, NACE MR0103 |
| Desalination | High-pressure pump shafts | EN 10204 3.1. WRAS |
| Power Generation | Nuclear coolant pumps, turbine rings | ASME III, RCC-M |
| Chemical Processing | Acid pump impellers, valve trim | ISO 15156. NORSOK M650 |
Top Search Keywords:
C95800 bronze price | Lead-free aluminum bronze | Marine pump impeller alloy | NACE MR0175 bronze
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