UNS C95400 (also known as CDA 954) is the most widely used aluminum bronze alloy, recognized for its outstanding combination of high strength, exceptional wear resistance, and superior corrosion resistance in seawater environments. With a nominal composition of 10.0–11.5% aluminum and 3.0–5.0% iron, this precipitation-hardenable copper alloy delivers mechanical properties that rival many steels while maintaining excellent resistance to cavitation, erosion, and saltwater corrosion.
Our C95400 aluminum bronze bushings are precision CNC finished to tight dimensional tolerances, ensuring reliable performance in demanding marine and offshore applications. Each bushing is manufactured in strict compliance with ASTM B148 (sand castings) and ASTM B505 (continuous castings), with optional heat treatment to achieve enhanced mechanical properties where required.
Key Specifications
| Property | Value |
|---|---|
| UNS Designation | C95400 |
| CDA Grade | 954 |
| ASTM Standards | B148 (Sand Castings), B505 (Continuous Cast) |
| Density | 7.45 g/cm³ |
| Tensile Strength (UTS) | 586–655 MPa (85–95 ksi) |
| Yield Strength (0.2% offset) | 205–310 MPa (30–45 ksi) |
| Elongation | 8–18% |
| Hardness (Brinell) | 170–195 HB |
| Melting Point (Liquidus) | 1,038°C (1,900°F) |
| Magnetic Permeability | Low (16 kA/m field strength) |
Why C95400 for Marine Bushings?
- Superior Seawater Corrosion Resistance – C95400 demonstrates excellent resistance to saltwater corrosion, cavitation, and erosion-corrosion, making it the material of choice for propeller hubs, rudders, bearings, and other naval hardware.
- High Strength-to-Weight Ratio – With tensile strength up to 655 MPa, C95400 delivers the mechanical performance required for heavy-duty marine applications while remaining lighter than steel.
- Exceptional Wear Resistance – The alloy's inherent wear resistance makes it ideal for bushings, bearings, and thrust washers subjected to continuous sliding contact and heavy loads.
- Excellent Machinability – C95400 is readily CNC machinable, allowing for complex geometries and tight tolerances required in precision bushing applications.
Want to know whether cast C95400 is suitable for seawater service or if you should upgrade to nickel‑containing bronze grades? Refer to our [Nickel‑Aluminum Bronze Selection Guide] comparing C63000, C63200, C95400, C95500, C95800 for full‑scope material‑selection reference.
Available Custom‑Machining Options
HSMetal provides fully customized CNC‑finished UNS C95400 bronze bushings according to your technical drawings or samples.
- Straight cylindrical bushing / sleeve bearing
- Flanged bronze bushing
- Split‑type aluminum bronze bushing
- Custom outer diameter, inner bore, wall thickness and overall length
- Surface finishing, oil groove & lubrication hole processing on request
Case Study – Turkish Marine Engineering Client
Background
A leading Turkish marine engineering firm specializing in propulsion systems for commercial vessels approached us with a critical requirement: high-performance bushings for propeller shaft assemblies on a series of 60-meter offshore supply vessels operating in the Mediterranean and Black Seas. The client had previously experienced premature bushing failures due to a combination of seawater corrosion, cavitation erosion, and insufficient load-bearing capacity from standard bronze alloys.
Challenge
Operating environment: Seawater immersion with varying salinity and temperature
Load conditions: High radial loads from propeller shaft rotation
Failure mode: Previous bushings showed accelerated wear and pitting within 18–24 months of service
Dimensional requirements: ±0.05 mm tolerance on critical bearing surfaces
Delivery timeline: 6 weeks from order to delivery
Our Solution
We supplied precision CNC-finished C95400 aluminum bronze bushings manufactured to ASTM B148 specifications. Key features included:
- Optimized alloy composition – Strict control of aluminum (10.0–11.5%) and iron (3.0–5.0%) content to maximize corrosion resistance and mechanical strength
- CNC finishing – Achieved ±0.05 mm dimensional tolerances on all critical mating surfaces
- Integrated lubrication grooves – Custom-machined grease channels to ensure proper lubrication distribution during operation
- Heat-treated condition – Enhanced mechanical properties to withstand the high radial loads of propeller shaft operation
Package And Finished Products Readay To Ship
View full case study >>Successful Delivery: UNS C95400 (CDA 954) Aluminum‑Bronze Marine Bushings Shipped To Turkey Client
Why Choose HSMetal for Your CDA 954 Aluminum Bronze Bushing
- Precision CNC‑machining capability: We produce custom bronze bushings strictly according to customer drawings with tight tolerances.
- Reliable alloy quality: All UNS C95400 raw castings are sourced from qualified foundries, full batch MTC documentation supplied.
- Rich marine‑project export experience: Proven successful delivery records for marine bronze components to Turkey and many other overseas markets.
- Flexible order quantity: Support prototype sample orders, small‑batch trial‑run and large‑volume bulk production.
- Complete export service: We arrange sea shipment to Turkish ports and worldwide destinations with professional export documentation.
If you have drawings or specifications for UNS C95400 / CDA 954 aluminum bronze bushings or other aluminum bronze bushings, welcome to send us your inquiry for a competitive quotation.
Product Forms & Customization
| Form | Available Options |
|---|---|
| Bushings | Standard and custom sizes, plain or with grease grooves |
| Bearings | Sleeve bearings, thrust washers, wear plates |
| CNC Finishing | ±0.05 mm tolerances, custom surface finishes |
| Heat Treatment | As-cast or heat-treated for enhanced properties |
| Standards | ASTM B148, B505, AMS 4870 |
UNS C95400 (CDA 954) Aluminum Bronze vs. Similar Cast‑Bronze Alloys: Comparison & Selection Guide
| Alloy Grade | Main Advantage | Best‑Fit Application | Not Recommended For |
|---|---|---|---|
| C95400 | Balanced strength, seawater corrosion‑resistant, cost‑effective | General marine machinery, ship winch, seawater pump | Extreme heavy‑shock load |
| C95800(NAB) | Excellent cavitation & deep‑sea corrosion resistance | Off‑shore platform, propeller shaft bearing | Cost‑sensitive ordinary marine projects |
| C86300 | Ultra‑high impact & tensile strength | Mining crusher, construction heavy machinery | Long‑term seawater exposure |
| C93200(SAE660) | Good self‑lubrication property | General hydraulic bearing, industrial bushing | Salt‑water / marine service |
Not sure whether C95400 or C95500 is right for your casting? Read the full nickel aluminum bronze selection guide first, then confirm your specification below.
Nickel aluminum bronze selection guide
Typical Marine Applications
- Propeller shaft bushings and bearings
- Rudder bearings and stern tube bushings
- Offshore winch components and drum bushings
- Valve guides, pump impellers, and seawater system components
- Marine hardware, deck fittings, and underwater equipment
- Heavy-duty sliding components and wear plates
For more details about the industry applications of our CNC‑Finished UNS C95400 (CDA 954) Aluminum Bronze Bushing, please visit our Product Applications Module.
About Us
Aluminum Bronze Professional Manufacturer & Exporter
HSMetal is a specialized manufacturer and global supplier of high‑performance aluminum bronze alloys and custom CNC machined bronze components. Focusing on high‑strength, wear‑resistant, and corrosion‑proof copper alloy solutions, we have long been committed to providing standardized and custom‑finished aluminum bronze parts for marine, offshore, hydraulic, mining, and heavy industrial equipment worldwide.
We mainly supply full‑grade aluminum bronze series, including UNS C95400 (CDA 954), C95500, C95800 and other marine‑grade bronze materials. Different from ordinary brass and common bronze, our aluminum bronze products strictly control aluminum and iron composition, ensuring excellent hardness, impact resistance, friction stability, and superior seawater corrosion resistance, fully meeting harsh long‑term working conditions of marine engineering and mechanical transmission systems.
Equipped with complete casting, forging, heat treatment and precision CNC machining workshops, we support one‑stop services from raw material customization, precision turning, boring, grooving to final finishing and dimension inspection. All bronze bushings, sleeves, flanged parts and custom mechanical components are produced according to international ASTM/UNS standards and customer drawing requirements, achieving tight tolerance, smooth surface and zero burr delivery.
With mature export experience in industrial bronze components, we have successfully delivered large batches of CNC‑finished C95400 aluminum bronze bushings to Turkish marine equipment manufacturers. Our products have solved customer pain points of rapid wear and seawater corrosion of original parts, and obtained stable repeat orders, proving our reliable quality and customized processing capability in global marine supporting projects.
Adhering to strict quality control standards, every batch of our aluminum bronze materials is inspected for chemical composition, mechanical properties and dimensional accuracy, and can be provided with complete MTC test reports. We support small‑batch trial orders and large‑scale bulk supply, and provide stable, cost‑effective and high‑durability bronze component solutions for global industrial buyers.
Focusing on high‑end precision copper alloy processing and global industrial supporting services, HSMetal has always been a trustworthy long‑term partner for overseas customers in the field of aluminum bronze custom machining.
Our Capability
FAQ
Q1: What is UNS C95400 aluminum bronze?
A: UNS C95400 is a copper‑based aluminum bronze alloy with 10.0–11.5% aluminum and 3.0–5.0% iron as the primary alloying elements. It is the most widely specified cast aluminum bronze, offering an outstanding balance of high tensile strength (up to 655 MPa), excellent wear resistance, and superior seawater corrosion resistance. It contains no lead and is fully RoHS‑compliant.
Q2: Does C95400 require lubrication?
A: While C95400 performs exceptionally well under boundary lubrication and marginal lubricant conditions, we recommend periodic greasing for optimal service life, especially in high‑load and continuous operation applications. For applications where lubrication is difficult, we offer C95400 bushings with graphite‑plugged designs for self‑lubricating performance.
Q3: What shaft material should be used with C95400 bushings?
A: C95400 is a hard, non‑embeddable alloy. It lacks the conformability to absorb misalignment or embed debris. Therefore, mating shafts should be hardened – typically hardened steel with a surface hardness of at least HRC 45–55. Through‑hardened carbon steel is preferred for high‑impact applications.
Q4: Is C95400 suitable for high‑temperature applications?
A: Yes. C95400 maintains good physical properties at elevated temperatures. Its compressive strength at 500°F (260°C) is comparable to that of tin bronzes at room temperature. The alloy also offers excellent resistance to softening and oxidation at elevated temperatures.
Q5: What forms and sizes do you offer?
A: We supply C95400 bushings in standard and custom sizes, with precision CNC finishing to tight dimensional tolerances (as tight as ±0.05 mm on critical surfaces). We also offer:
- Plain bushings or with grease grooves (helix, annular, or figure‑eight patterns)
- Graphite‑plugged self‑lubricating designs
- Heat‑treated or as‑cast conditions
Q6: Are your C95400 products certified?
A: Yes. All products are manufactured in compliance with ASTM B148 (sand castings) and ASTM B505 (continuous castings). We provide full mill test reports (MTR) with chemical composition and mechanical properties for every batch. RoHS and REACH compliance documentation is available upon request.
Q7: How do I select the right bronze alloy for my application?
A: Start by defining the failure mode you are designing against:
- Corrosion failure in seawater → Choose C95400 or C95500
- Wear failure under high load → Choose C95400 or C86300
- Cost‑sensitive general purpose with adequate lubrication → C93200 (SAE 660) may suffice
- Extreme static loads at very slow speeds → C86300
For most marine and heavy‑load bushing applications, C95400 offers the best balance of strength, corrosion resistance, machinability, and cost. If you are unsure, please contact our technical team for grade selection assistance.
Q8:What is UNS C86300 manganese bronze bushing?
A: UNS C86300 manganese bronze bushing is a heavy‑duty cast copper‑manganese‑aluminum bronze bearing component. Famous for ultra‑high tensile strength, excellent impact‑resistance and wear‑resistance, it is widely used for heavy‑load, shock‑prone industrial equipment.
Q9:What industries are C86300 bronze bushings used for?
A: UNS C86300 manganese bronze sleeves are commonly applied in mining machinery, construction equipment, hydraulic cylinders, crusher parts, off‑road vehicles and heavy‑duty industrial machinery.
Q10: Can I request samples before placing a bulk order?
A: Absolutely. We offer sample quantities for customer evaluation. Please let us know your required specifications, and we will arrange shipment promptly. For new customer we need you pay for the sample costs, as old customer sample costs are typically credited against your next bulk order.
Q12: What is the Minimum Order Quantity (MOQ)?
A: Normally MOQ is 1-5 pcs, We always expect more opportunities with you. But for some special material or special size let's communicate the actual status.
Q13: What is your lead time?
A: For standard sizes in stock, we ship within 10-15 working days. For custom sizes or normalized heat treatment, lead time is typically 30-40 working days (depending on specifications and quantity). We always provide a clear delivery schedule before order confirmation and strictly adhere to it.
Q14: What payment terms do you accept?
A: We accept T/T, L/C, and other common methods. For new customers, we usually require 50% deposit and 50% balance before shipment. Flexible terms can be negotiated for long-term partners
Q15: What if I find quality issues after receiving the goods?
A: We provide a 100% quality guarantee. If any non-conformity is found, please provide photos and test data within 7 working days of receipt. We will respond within 48 hours and agree on replacement, return, or compensation terms.
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