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Dimensional Ranges for C95500 Bushings
C95500 bushings are manufactured in standardized sizes, primarily focusing on cylindrical and flanged configurations. Key dimensional parameters include:
Notes:
- Dimensions vary based on application requirements (e.g., flange size for thrust load support) .
- Custom sizes are available for specialized industrial needs
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International Standards for C95500 Bushings
C95500 bushings comply with the following standards, ensuring material consistency and performance:
Additional Compliance Notes:
- Material Certification: Standards like DIN G-CuSn7ZnPb and SAE 660 may apply for specific applications .
- Surface Roughness: ≤1.0 Ra (µm) for optimal performance .
Chemical Composition
C95500 is a nickel-aluminum bronze alloy primarily composed of copper (Cu) with strategic additions of aluminum (Al), nickel (Ni), iron (Fe), and manganese (Mn). The precise composition ranges are as follows (based on ASTM B505/B505M and other standards):
- Copper (Cu): Balance (approximately 78.0% – Remaining percentage after accounting for other elements) .
- Aluminum (Al): 10.00% – 11.50% (forms a solid-solution matrix for strengthening) .
- Nickel (Ni): 3.00% – 5.50% (enhances corrosion resistance and high-temperature stability) .
- Iron (Fe): 3.00% – 5.00% (improves wear resistance and mechanical strength) .
- Manganese (Mn): ≤3.50% (refines grain structure and aids in deoxidation) .
- Other Elements: Trace impurities (e.g., Co, Si) ≤0.5% in total .
The alloy meets the ASTM B505/B505M-18 standard, ensuring consistency in industrial applications .
Mechanical Properties
C95500 exhibits exceptional mechanical performance, particularly in strength, wear resistance, and corrosion resilience. Key properties vary slightly depending on casting methods (e.g., continuous casting, centrifugal casting) and heat treatment states:
2.1 As-Cast Condition (ASTM B505/B505M Standard)
- Tensile Strength (σ₆): ≥95 ksi (655 MPa) .
- Yield Strength (σ₀.₂): ≥42 ksi (290 MPa) .
- Elongation (δ): ≥10% in 2 inches (50 mm) .
- Hardness (Brinell, HB): Typical value 208 HB (3000 kg load) .
2.2 Heat-Treated Condition (e.g., TQ50/SAE-C)
- Tensile Strength (σ₆): ≥110 ksi (758 MPa) – Typical value up to 120 ksi (827 MPa) .
- Yield Strength (σ₀.₂): ≥60 ksi (414 MPa) – Typical value up to 68 ksi (469 MPa) .
- Elongation (δ): ≥5% (Typical value 10%) .
Hardness (Rockwell): HR96B .
Other Critical Properties
- Density: 0.272 lb/in³ (7.53 g/cm³) at 68°F .
- Thermal Conductivity: 41.9 W/m·K (20°C) .
- Electrical Conductivity: 8% IACS (at 68°F) .
- Melting Range: 1900°F (1038°C, solidus) – 1930°F (1054°C, liquidus) .
- Thermal Expansion Coefficient: 9 ×10⁻⁶/°F (15.5 ×10⁻⁶/°C) .
Production process and product advantages of C95500 copper bushing:
1. Production process
Casting process
C95500 copper bushing mainly adopts centrifugal casting technology, which forms a dense metal layer through high-speed rotation, and can produce bushings with an outer diameter of 20-2000mm, ensuring that the internal structure of the product is tight and free of pore defects. In addition, sand casting process can also be used, which is suitable for large castings with a weight of 0.1-4000kg and a maximum outer diameter of 4 meters.
Heat treatment strengthening
The cast C95500 needs to be heat treated to improve performance:
Solution treatment: 870~910°C insulation for 1 hour and then water cooling to eliminate internal stress and improve strength.
Annealing treatment: 620~660°C insulation for 2 hours and air cooling to optimize mechanical properties.
After heat treatment, the tensile strength can reach 760MPa, the yield strength can reach 415MPa, and the hardness can be increased to more than 200HB.
Subsequent processing
Including machining (turning, grinding), surface treatment (degreasing, shot blasting, phosphating) and vulcanization, and finally forming the finished bushing.
2. Product advantages
Excellent mechanical properties
High strength: After heat treatment, the tensile strength reaches 760MPa, and the yield strength is 415MPa, which is far higher than ordinary bronze.
High wear resistance: Brinell hardness ≥200HB, suitable for high-load friction environment.
Good ductility: elongation ≥5%, excellent impact resistance (impact work 13J).
Excellent corrosion resistance
Designed for marine environment, the seawater corrosion resistance is far higher than ordinary copper alloys, and the resistance to cavitation and crevice corrosion is outstanding.
It is stable in chlorine-containing media, acidic environment and sulfide, and the surface oxide layer can protect the substrate for a long time.
Stable thermal performance
The thermal conductivity is 42W/m·K, the thermal expansion coefficient is 16.2×10⁻⁶/°C, suitable for high temperature conditions.
Maintains stable mechanical properties below 400°C, suitable for use in high temperature environments.
Wide applicability
Customizable size (diameter Φ3-200mm, outer diameter up to 2000mm) to meet the needs of ship propellers, valves, mining machinery, etc.
Low electromagnetic shielding (controllable magnetic permeability), suitable for precision instruments and electromagnetic sensitive scenarios.
3. Typical applications
Mainly used for:
Marine engineering: propellers, pumps and valves, seawater pipelines.
Heavy-duty machinery: mining crusher bushings, bearings, gears.
Aerospace: landing gear bushings, engine parts.
Q1:Do you provide samples? Is it free or extra?
A1:Yes, we can provide samples free of charge and the customer will pay the freight.
Q2:What if I don't have export experience ?
A2:We have reliable forwarder agent which can ship items to you by sea/air/Express to your doorstep. Any way, we will help you choose the most suitable shipping service.
Q3:How long is your lead time?
A3:If it is in stock, it is usually 5-10 days. Or, if there is no inventory, 15 days, depending on the quantity.
Q4:What are your terms of payment?
A4:30% T/T deposit in advance, 70% T/T balance within 5 days after B/L copy, 100%.Irrevocable L/C at sight, 100% Irrevocable L/C after receive B/L 30-120 days, O/A.
Q5:How is your technical support?
A5:We provide lifetime online support through Whatsapp/ Skype/ Wechat/ Email. Any problem after delivery, we will offer you call anytime.
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