What C62400 aluminum bronze is used for - in one sentence: C62400 (CuAl11Fe3) is the wrought aluminum bronze you choose when you need high strength, excellent wear resistance, and good seawater corrosion resistance for hydraulic bushings, gears, and wear parts - without the cost premium of nickel-bearing alloys.
C62400 aluminum bronze (UNS C62400, CuAl11Fe3, ASTM B150) is a wrought aluminum bronze containing approximately 10–11.5% aluminum and 2–4.5% iron. The iron addition refines the grain structure and provides excellent wear resistance, while the aluminum forms a protective alumina film that resists corrosion. Unlike C63000, C62400 is a nickel-free aluminum bronze - making it a more cost-effective choice when the full strength of C63000 is not required.
The key performance advantage: C62400 delivers tensile strength up to 730 MPa with excellent hot formability (hot forgeability rating 80%). This makes it the material of choice for hydraulic bushings, gears, cams, and wear plates - applications where you need high strength and wear resistance without the premium cost of nickel-bearing alloys.
Chemical Composition (UNS C62400)
| Element | Weight % |
|---|---|
| Copper (Cu) | Balance (approx. 82.8 – 88.0%) |
| Aluminum (Al) | 10.0 – 11.5% |
| Iron (Fe) | 2.0 – 4.5% |
| Manganese (Mn) | ≤ 0.30% |
| Silicon (Si) | ≤ 0.25% |
| Tin (Sn) | ≤ 0.20% |
Reference: ASTM B150/B150M
Physical Properties of C62400 Aluminum Bronze
| Property | Metric | Imperial |
|---|---|---|
| Density | 7.45 g/cm³ | 0.269 lb/in³ |
| Melting Point – Liquidus | 1,038°C | 1,900°F |
| Melting Point – Solidus | 1,027°C | 1,880°F |
| Thermal Conductivity (@20°C) | 58.6 W/mK | 407 BTU in/hr·ft²·°F |
| Electrical Conductivity | 12% IACS | 0.07 MegaSiemens/cm |
| Elastic Modulus | 117 GPa | 17,000 ksi |
| Poisson's Ratio | 0.34 | 0.34 |
Mechanical Properties of C62400 Aluminum Bronze
| Temper | Section Size | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) | Hardness HRB |
|---|---|---|---|---|---|
| M30 | Various | 621 – 655 | 276 – 330 | 14 – 18% | 87 – 92 |
| H50 | Various | 655 | 330 | 14 | 92 |
| O50 | Various | 641 – 689 | 310 – 345 | 14 | 91 – 92 |
| H02 | Various | 724 | 359 | 14 | 92 |
C62400 (CuAl11Fe3) VS Similar Bronze Grades
| Material Grade | Alloy Alias | Compressive Strength | Wear / Galling | Seawater Corrosion | Best‑Fit Scenario |
|---|---|---|---|---|---|
| C62400 | CuAl11Fe3 | Very High | Excellent | Moderate | Hydraulic bushings, heavy‑load bearings, impact wear sleeves, construction machinery |
| C95400 | Cast Aluminum Bronze | High | Good | Good | General‑purpose industrial bushings, gears without heavy impact |
| C63000 | Nickel Aluminum Bronze | Very High | Excellent | Excellent | Marine / offshore components requiring cavitation resistance |
| C95500 | Nickel Aluminum Bronze | High | Good | Good | Heavy‑duty pump and gear parts |
Applicable Standards & Specifications
| Standard | Description |
|---|---|
| ASTM B150/B150M | Aluminum Bronze Rod, Bar, and Shapes |
| ASME SB150 | Aluminum Bronze Rod, Bar, and Shapes |
| SAE J461 | Wrought and Cast Copper Alloys |
| SAE J463 | Wrought Copper and Copper Alloys |
| AWS A5.7 | Copper and Copper Alloy Welding Rods and Electrodes |
Available Forms & Sizes
| Form | Size Range |
|---|---|
| Solid Bar / Rod | 1/2″ to 3″ O.D. (larger sizes available upon request) |
| Hex Bar | Custom sizes available |
| Tube / Pipe | Custom sizes available |
| Forgings | Custom sizes available |
| Flat Products / Plate | Custom sizes available |
Temper Options: HR50 (Drawn and Stress Relieved), M30, O50, H02
How Buyers Choose: When to Use C62400 (CuAl11Fe3 / UNS C62400)
Select C62400 CuAl11Fe3 aluminum bronze if you meet below requirements:
- You produce hydraulic bushings, bearings or wear sleeves operating under heavy compression and impact load.
- Bushing runs against steel shafts with limited lubrication; anti‑galling and anti‑seizure performance is required.
- Working media is hydraulic oil or fresh water, without harsh seawater cavitation conditions.
- High compressive strength and shock resistance are top priorities.
Choose alternative alloys for these cases:
- For seawater, offshore and cavitation exposure: pick C63000 nickel aluminum bronze.
- For general machinery bushings with lower impact and cost control: C95400 is cost‑effective.
- For balanced seawater corrosion and heavy‑load performance: select C95500 nickel aluminum bronze.
Send your working‑condition parameters and drawings, and contact our engineering team will confirm the optimal bronze grade.
How do I avoid procurement pitfalls when buying C62400?
Key Check List:
- Verify the grade - confirm UNS C62400 / CuAl11Fe3 / CW306G equivalence.
- Check nickel content - C62400 should be nickel-free (unlike C63000).
- Confirm the temper - M30, O50, or H02; verify against your machining requirements.
- Request the Mill Test Certificate - confirm compliance to ASTM B150.
- Check dimensions and tolerance - verify against your drawing.
- Request PMI verification - confirms material authenticity and nickel-free composition.
Typical Industrial Applications
- Hydraulic & Heavy Machinery: Hydraulic cylinder bushings, wear‑resistant cams, gears, plunger sleeves, drift pins
- Marine Equipment: Sea‑water pump components, deck fittings, valve parts
- High‑Strength Fasteners: Nuts, bolts, tie‑down hardware, pole‑line components
- Industrial Wear‑Parts: Wear plates, sliding guide blocks and heavy‑load bearing sleeves
Delivery & Commercial Terms
| Item | Details |
|---|---|
| MOQ (Bulk Order) | Bars/Rods (standard sizes): 100 – 1,000 kg (depends on size and specification); Custom sizes & Forgings: Please inquire |
| Sample Order | 5‑20 KG available for lab‑testing |
| Sample Lead Time | 7‑10 working days |
| Bulk Production Lead Time | 18‑28 working days after deposit & drawing confirmation |
| Price Terms | EXW, FOB Shanghai, FOB Qingdao or any of china ports, CFR, CIF |
| Payment Terms | T/T 50% deposit, 50% balance before shipment; Irrevocable L/C at sight acceptable |
| Export Packing | Waterproof plastic film + fumigated seaworthy wooden case, suitable for long‑sea transportation |
| Certificates & Documents | Official English MTC (Material Test Certificate), spectral report, mechanical test report; Third‑party SGS inspection available on request |
Why Choose C62400 Aluminum Bronze?
C62400 aluminum bronze offers a unique combination of properties that make it the material of choice for hydraulic bushing and heavy-duty industrial applications:
- Superior Wear Resistance – Outperforms many steel and cast iron alternatives in high-friction environments
- Excellent Hot Formability – Enables cost-effective production of complex shapes via hot forging
- High Strength-to-Weight Ratio – Density of only 7.45 g/cm³ with strength approaching that of steel
- Corrosion Resistance – Performs well in industrial process streams and marine environments
- Non-Sparking Properties – Safe for use in explosive or hazardous environments
- Good Weldability – Supports multiple welding methods for fabrication and repair
- Proven Reliability – Widely used in demanding applications including hydraulic bushings, gears, and valve components
About Us
HSMetal is a professional manufacturer and export factory focusing on high‑strength wrought aluminum bronze and wear‑resistant copper alloy materials. We specialize in the full‑process production, forging, heat treatment and precision processing of UNS C62400 high‑strength aluminum bronze, alongside a complete series of bronze grades including C62300, C62400, C63000, C95400 and C95800. Adhering to strict ASTM B150 industrial standards, we stabilize material composition, mechanical performance and surface quality to provide consistent, long‑life alloy solutions for hydraulic bushing, heavy machinery, marine equipment and industrial wear‑part applications.
Equipped with independent smelting workshops, hot forging production lines and professional physical and chemical testing laboratories, we conduct full‑batch spectral analysis, hardness and tensile testing to ensure reliable quality for every shipment. We support customized size processing, small sample orders and large‑volume bulk production, providing complete MTC material certificates, spectral test reports and third‑party SGS inspection documents.
With mature FOB export service, stable supply capacity and rich overseas project experience, we have built long‑term cooperative relationships with global customers in Europe, Southeast Asia, the Middle East and America, becoming a trustworthy supplier for high‑strength C62400 aluminum bronze raw materials and custom forged components.
Our Factory
Vacuum Melting Furnace
Rolling Mill Equipment
250KG Vacuum Induction Melting Furnace (VIM)
4-Tensile Testing Machine
Flaw Detector
Hardness Tester
Need C62400 Aluminum Bronze?
Tell us your required diameter, length, quantity, and application environment. We will confirm availability, provide a quotation, and ship with full documentation. Fast delivery and custom sizes available.
FAQ
Q1: What is C62400 aluminum bronze used for?
A: C62400 is used for hydraulic bushings, support bushings, tie rods, gears, cams, wear plates, valve stems, worm gears, valve guides, valve seats, pump rods, marine hardware, and fasteners. It is chosen when you need high strength (690–730 MPa), excellent wear resistance, and good seawater corrosion resistance in a nickel-free wrought aluminum bronze.
Q2: What is the difference between C62400 and C63000?
A: C62400 is nickel-free with tensile strength 690–730 MPa. C63000 contains 4.0–5.5% nickel with higher tensile strength (up to 758 MPa) and superior galling resistance. Choose C62400 for cost-effective strength and wear resistance; choose C63000 when maximum strength and galling resistance are required - especially for aerospace and oil/gas applications.
Q3: What is the difference between C62400 and C95400?
A: C62400 is a wrought aluminum bronze (hot extruded or forged) with higher strength (690–730 MPa). C95400 is a cast aluminum bronze that is more cost-effective for general wear applications and complex cast shapes. Choose C62400 for high-strength wrought parts; choose C95400 for cost-effective cast components.
Q4: Is C62400 suitable for seawater applications?
A: Yes. C62400 forms a protective alumina film that provides good resistance to seawater, saline solutions, and stress corrosion cracking. It is used for marine hardware, pump components, and valve parts. However, for maximum seawater corrosion resistance, C63000 or C95800 (with nickel content) may be preferred.
Q5: Can C62400 be welded?
A: Yes. C62400 has good weldability using gas shielded arc welding, spot welding, butt welding, and seam welding. Brazing has fair suitability. Soldering and oxyacetylene welding are not preferred for this alloy.
Q6: What is the hot working temperature for C62400?
A: Hot working temperature: 760–885°C (1400–1625°F). Annealing temperature: 593–650°C. C62400 has a hot forgeability rating of 80% and excellent hot formability.
Q7: What is the difference between C62400 and C62300?
A: Both are high‑aluminum wrought aluminium bronzes. C62400 has a slightly higher aluminum content (10.0‑11.5%) compared to C62300 (9.0‑11.0%), and therefore offers higher strength. The choice depends on the strength requirements of the specific application.
Q8: Is there a Chinese equivalent grade for C62400 Aluminum Bronze?
A: There is no exact one‑to‑one Chinese GB equivalent, but its performance is similar to aluminium bronze grades such as QAl10‑3‑2 or QAl10‑4‑4.
Q9: How does C62400 perform at elevated temperatures?
A: Prolonged exposure in the 370 – 565°C range may cause loss of ductility. Therefore, it is not recommended for use in oxidizing acid environments or under long‑term high‑temperature service conditions.
Q10: How does C62400 compare with C63000? Which is better for hydraulic bushings?
A:Both are high‑performance aluminium bronzes with about 95% similar composition. C62400 contains no nickel (Al 10.0‑11.5%, Fe 2.0‑4.5%), while C63000 is a nickel‑aluminium bronze (Ni 4.0‑5.5%). C62400 has better thermal conductivity (59 vs 39 W/m·K) and electrical conductivity (12% vs 7% IACS). For hydraulic bushings where wear resistance and heat dissipation are primary concerns, C62400 is more cost‑effective and better matched. C63000 is preferred when higher strength and superior seawater corrosion resistance are required together.
Q11: Which is stronger – C62400 or C63200?
A:They share about 94% of their composition. C63200 contains nickel and manganese, giving slightly higher strength and corrosion resistance. C62400 is nickel‑free, lower in cost, and has better thermal and electrical conductivity. Choose C63200 for maximum strength if budget allows; choose C62400 for good all‑round performance with cost efficiency.
Q12: What is the difference between C62400 and C95500?
A:C95500 is a cast aluminium bronze with 3.0‑5.5% nickel, offering tensile strength of 700‑850 MPa and yield strength of 320‑470 MPa. C62400 is a wrought aluminium bronze (nickel‑free) with tensile strength of 690‑730 MPa and yield strength of 270‑350 MPa. C62400 offers excellent hot formability (forging, bending), making it ideal for bar, rod and forged shapes. C95500, with its higher strength, is better suited for casting large complex parts.
Q13: What is the one-line rule for choosing C62400?
A: Choose C62400 aluminum bronze when you need high strength (690–730 MPa), excellent wear resistance, and good seawater corrosion resistance for hydraulic bushings, gears, and wear parts - and a nickel-free, cost-effective alternative to C63000 is acceptable. For maximum strength and galling resistance, choose C63000 instead.
Q14: Is C62400 suitable for marine environments?
A:Yes. It offers good to excellent corrosion resistance and is widely used in marine hardware, seawater pumps, and valve components. Although its seawater corrosion resistance is slightly lower than nickel‑containing C63000, C62400 provides better cost‑effectiveness for most industrial marine applications.
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