What ASTM B148 C95800 nickel aluminum bronze is used for - in one sentence: C95800 nickel aluminum bronze is the cast alloy you choose when your component faces long-term seawater exposure, high cavitation, and high impact - and you need castings, bar, plate, tube, or forgings with the best combination of corrosion resistance and toughness. If your application involves ship propellers, seawater pump housings, desalination equipment, or offshore platform components, C95800 is usually the answer.
UNS C95800 (Chinese grade ZCuAl9Fe4Ni4Mn2, EN equivalent CuAl9Ni5Fe4Mn) is a cast nickel aluminum bronze (NAB) conforming to ASTM B148, containing approximately 9% aluminum, 4–5% nickel, 4% iron, and 1–2% manganese . The combination delivers a rare balance: corrosion rate below 0.03 mm/year in flowing seawater, excellent resistance to cavitation and erosion, high tensile strength (620–690 MPa), and good toughness that does not become brittle at low temperatures .
As a China-based ASTM B148 C95800 nickel aluminum bronze supplier, we provide castings, bar, plate, tube, and forgings in standard and custom sizes for extreme marine environments. Every shipment includes a Mill Test Report (MTR) documenting chemical composition and mechanical properties to ASTM B148.
If you are comparing different nickel‑aluminum bronze grades for your marine or industrial project, please read our Nickel Aluminum Bronze Selection Guide for Marine, Aerospace & Industrial Applications to review property differences and application recommendations.
Key Specifications (ASTM B148)
Chemical Composition (wt.%)
| Element | Content |
|---|---|
| Cu | Balance |
| Al | 8.5–9.5 |
| Ni | 4.0–5.0 |
| Fe | 3.5–4.5 |
| Mn | 0.8–2.0 |
Mechanical Properties (As Cast)
| Property | Value |
|---|---|
| Tensile Strength | 620–690 MPa |
| Yield Strength | 260–310 MPa |
| Elongation | 18–25% |
| Hardness | 150–180 HB |
Physical Properties
| Property | Value |
|---|---|
| Density | 7.64 g/cm³ |
| Melting Range | 1060–1075°C |
| Thermal Conductivity | 38 W/m·K |
| Electrical Conductivity | 7% IACS |
| Magnetic Permeability | Non-magnetic |
| Corrosion Rate (Seawater) | <0.03 mm/year |
Available Forms & Specifications
| Form | Specification |
|---|---|
| Sand Castings | ASTM B148 |
| Centrifugal Castings | ASTM B271 |
| Continuous Cast Bar | ASTM B505 |
| Plate | ASTM B171 |
| Tube | ASTM B271 |
| Forgings | ASTM B124 |
| Welding Wire / Electrode | AWS A5.7, A5.15 |
Available Sizes:
Castings: up to 5,000 kg per piece
Bar: 1″ – 16″ diameter
Plate: 6 mm – 150 mm thickness
Tube: custom sizes available
Buyer Material Selection - Similar Grade Comparison & Equivalent Alternatives
When specifying C95800 for extreme marine environments, buyers should balance operating conditions, corrosion requirements and project budget, to avoid performance shortage or over‑specification. The table below compares mainstream nickel‑aluminum bronze grades, with reference to alternative materials.
Grade Comparison Table: C95400 vs C95500 vs C95800
| Alloy | Core Advantages | Limitations | Best‑Fit Scenarios |
|---|---|---|---|
| C95400 | Cost‑effective, solid general wear performance | Moderate seawater and anti‑cavitation capability | General‑purpose industrial wear parts, mild‑corrosion machinery |
| C95500 | Superior mechanical strength under high‑temperature and high‑pressure conditions | Lower cavitation resistance than C95800 | Pump shafts, valve stems, high‑pressure fluid control components |
| C95800 | Top‑tier seawater corrosion, anti‑cavitation and anti‑erosion performance for extreme marine environments | Higher material cost | Subsea hardware, marine propeller castings, long‑term seawater immersion, offshore & desalination equipment |
How To Choose?
- Choose C95800 when you need the best combination of seawater corrosion resistance, cavitation resistance, and toughness in a cast component - especially for ship propellers, seawater pumps, and desalination equipment in extreme marine environments.
- Choose C95500 when you need higher strength through heat treatment (up to 110,000 psi) for bearings, gears, and valve stems in demanding industrial applications.
- Choose C95400 for cost-effective general wear applications where seawater corrosion is not extreme.
- Choose C95200 for light to moderate corrosion environments and general machinery where budget is the primary concern.
Equivalent & Alternative Materials for Reference
- CuNi30Mn1Fe (UNS C71500 Copper‑Nickel Alloy): Outstanding seawater corrosion performance, excellent for high‑velocity sand‑bearing seawater; lower mechanical strength compared with C95800.
- C95200 Aluminum Bronze: Economical option for light‑to‑moderate corrosion, not suitable for extreme marine cavitation conditions.
Select C95800 when:
- Components work in extreme marine environments: long‑term full seawater immersion, splash zones or heavy cavitation‑erosion
- Parts require stable mechanical behaviour under low‑temperature subsea service
- Project prioritizes extended service life for critical offshore hardware with acceptable material budget
Consider alternative materials when:
- Service environment is mild with limited corrosion: choose cost‑efficient C95400 or C95200
- Priority lies in high‑temperature / high‑pressure performance rather than subsea cavitation resistance: select C95500
- Primary requirement is resistance against high‑speed sand‑filled seawater: evaluate C71500 copper‑nickel alloy
Visit our Nickel Aluminum Bronze Selection Guide for Marine, Aerospace & Industrial Applications for full‑scale alloy property data.
Typical Applications in Extreme Marine Environments
- Marine & Shipbuilding: Ship propellers, stern shaft bearings, rudder stocks, seawater pump housings, valves, fittings
- Offshore & Desalination: Seawater desalination evaporator tube sheets, offshore platform fire pumps, seawater lift pumps
- Deep Sea Exploration: Submersible propulsors, manipulator joints, subsea mining wear parts
- Power & Chemical: Water turbine blades, chemical pump valves, seawater cooling system components
- Defense: Submarine propulsion systems, missile launcher components
Common end‑use applications: Marine propeller castings, subsea connection hardware, seawater pump housings & impellers, desalination tube sheets, offshore platform pump components, hydro‑turbine wear‑resistant parts, heavy‑duty bearing & gear blanks, marine‑grade forgings, fluid‑handling tube assemblies for salt‑water service.
Not sure whether C95800 or C63200 is right for your seawater application? Read the full nickel aluminum bronze selection guide first, then confirm your specification below.
Nickel aluminum bronze selection guide
Why Buyers Choose Our C95800 Nickel Aluminum Bronze
- Full ASTM B148 compliance. Every shipment includes a Mill Test Report (MTR) documenting chemical composition and mechanical properties to ASTM B148.
- Full international grade coverage. We supply C95800 / ZCuAl9Fe4Ni4Mn2 / CuAl9Ni5Fe4Mn, with certification against ASTM B148, ASTM B271, ASTM B505, GB/T 13808, and EN 1982.
- Flexible supply options. We supply castings, bar, plate, tube, forgings, and custom-machined components. Whether you need a single prototype or production quantities, we can support your requirement.
- Technical support for material selection. Not sure whether C95800 or C95500 is the right grade? Send us your operating environment, load, temperature, and corrosion exposure - our team will confirm the specification or recommend an alternative.
- Competitive pricing with reliable lead times. We source from qualified producers and maintain stock in common sizes to shorten your procurement cycle.
Commercial And Delivery Terms
| Item | Detailed Terms |
|---|---|
| MOQ |
Stock C95800 bar / plate / tube: 10KG; Custom cut blanks, forgings and castings: 50KG. Small trial orders are accepted. |
| Sample Service | Small test samples are free of charge; buyer covers international freight. Samples available within 3 working days. |
| Lead Time |
In‑stock bar, plate and tube: 3‑5 working days; custom‑cut parts, forgings and castings: 8‑18 working days, subject to complexity of product form and order scope. |
| Loading Port | Shanghai, Ningbo, Guangzhou. Shipment to designated port is supported. |
| Payment Terms | T/T (30% deposit, balance before shipment), L/C at sight. Flexible terms available for long‑term partners. |
| Inquiry Response | Reply within 1 hour; formal quotation and material datasheet provided within 24 hours. |
How do I avoid procurement pitfalls when buying C95800?
Key checks:
- Confirm the standard - ASTM B148 for sand castings, B271 for centrifugal castings, B505 for continuous cast bar.
- Verify the grade - confirm C95800 / ZCuAl9Fe4Ni4Mn2 / CuAl9Ni5Fe4Mn equivalence.
- Check nickel content - Ni should be 4.0–5.0% for C95800.
- Request the Mill Test Report (MTR) - confirm chemical composition and mechanical properties.
- Verify casting quality - check for porosity, inclusions, and shrinkage.
- Confirm heat treatment - C95800 is not heat-treatable; verify as-cast condition.
Need ASTM B148 C95800 Nickel Aluminum Bronze?
Tell us your required form (casting, bar, plate, tube, forging), size, quantity, and application environment. We will confirm availability, provide a quotation, and ship with full documentation.
Products Description
Q1: What product forms do you supply for ASTM B148 C95800 nickel aluminum bronze?
A: We supply C95800 in multiple forms including castings, bar, plate, tube and forgings, for components operating within extreme marine environments. Custom cut‑to‑length and semi‑finish machining services are also available.
Q2: What are the typical applications of C95800 in extreme marine environments?
A: C95800 is widely used for marine propeller castings, subsea hardware, seawater pump housings and impellers, desalination tube sheets, offshore platform fittings and hydro‑turbine wear‑resistant parts where high anti‑cavitation and seawater corrosion resistance are required.
Q3: Can you provide custom cut‑to‑length processing for C95800 bar, plate and tube?
A: Yes. We support cut‑to‑length, cut‑to‑size and blanking for bar, plate and tube. We deliver burr‑free blanks with tight tolerances ready for your further machining.
Q4: Does your C95800 conform to ASTM B148? Can you provide MTC documents?
A: All our C95800 nickel aluminum bronze strictly follows ASTM B148 specification. Mill Test Certificates (MTC) containing chemical composition and mechanical property test data can be provided on request.
Q5: What is the key difference between C95500 and C95800?
A: C95500 performs better under high‑temperature and high‑pressure working conditions. C95800 delivers superior seawater corrosion and anti‑cavitation performance, making it the preferred choice for extreme marine environments and long‑term subsea immersion. See our Nickel Aluminum Bronze Selection Guide for Marine, Aerospace & Industrial Applications for full grade comparison.
Q6: What alternative materials can replace C95800 for marine projects?
A: Alternatives include C71500 copper‑nickel alloy, C95500 nickel aluminum bronze, C95200 aluminum bronze and 316L stainless steel. Each material has trade‑offs in corrosion resistance, mechanical performance and cost based on actual working conditions.
Q7: What lead‑time should I expect for C95800 forgings and castings?
A: Standard stocked bar, plate and tube ship within 3‑5 working days. Custom‑cut blanks, forgings and castings normally take 8‑18 working days, determined by product form, processing complexity and order weight.
Q8: Can I order small samples for performance testing?
A: Yes, small‑size test samples are provided free of charge. Customers only need to bear the international sample freight cost.
Q9: What is ASTM B148 C95800 nickel aluminum bronze used for?
A: C95800 is used for ship propellers, stern shaft bearings, seawater pump housings, desalination plant components, offshore platform fire pumps, submarine propulsion systems, water turbine blades, and chemical pump valves . It is chosen when you need the best combination of seawater corrosion resistance, cavitation resistance, and toughness in a cast nickel aluminum bronze for extreme marine environments.
Q10: What is the difference between C95800 and C95500?
A: Both are cast nickel aluminum bronzes, but C95500 is heat-treatable and achieves higher tensile strength (up to 758 MPa) and hardness (up to 230 HB). C95800 offers better toughness and superior seawater corrosion resistance. Choose C95800 for seawater toughness; choose C95500 for heat-treated strength.
Q11: What is the difference between C95800 and C95400?
A: C95800 has higher nickel content (4.0–5.0% vs ≤1.5%) and superior seawater corrosion resistance, cavitation resistance, and toughness. C95400 is more cost-effective for general wear applications. Choose C95800 for extreme marine environments; choose C95400 for cost-sensitive general wear.
Q12: Can C95800 be heat treated?
A: No. C95800 is not heat-treatable. Its properties are achieved in the as-cast condition. If you need heat-treatable nickel aluminum bronze, choose C95500 instead.
Q13: What is the maximum service temperature of C95800?
A: C95800 is suitable for continuous service up to approximately 400°C (750°F) . For higher temperature applications (400°C+), C95500 may be preferred .
Q14: Is C95800 suitable for seawater applications?
A: Yes. C95800 is specifically designed for seawater service. Its corrosion rate in flowing seawater is below 0.03 mm/year, and it resists cavitation, erosion, and marine biofouling. It is the material of choice for ship propellers, seawater pumps, and desalination equipment in extreme marine environments .
Q15: What is the Chinese equivalent of C95800?
A: The direct Chinese equivalent is ZCuAl9Fe4Ni4Mn2 (GB/T 13808-1992). The European equivalent is CuAl9Ni5Fe4Mn (EN 1982). These are direct equivalents and can be specified interchangeably.
Q16: What forms of C95800 are available?
A: Available forms include castings, bar (round, square, hex), plate, tube (seamless and welded), strip, wire, forgings, and welding wire/electrode .
Q17: Can C95800 be welded?
A: Yes. C95800 can be welded using gas shielded arc welding (TIG/MIG), coated metal arc welding, and brazing. Suitable filler materials include CuAl8, CuAl9Ni4Fe2Mn2. Preheating 200–300°C is recommended for TIG welding.
Q18:What is the one-line rule for choosing C95800?
A: Choose ASTM B148 C95800 when you need the best combination of seawater corrosion resistance, cavitation resistance, and toughness in a cast nickel aluminum bronze - especially for ship propellers, seawater pumps, desalination equipment, and offshore platform components in extreme marine environments.
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