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Dimensional Ranges for C95500 Copper Tubes
C95500 tubes are available in seamless configurations with the following specifications:
Notes:
- Custom sizes: Wall thickness and OD/ID combinations can be tailored for specialized industrial needs .
Tolerance: Complies with ASTM B505/B505M for dimensional accuracy .
International Standards for C95500 Copper Tubes
C95500 tubes adhere to globally recognized standards for material composition, manufacturing, and testing:
Additional Certifications:
- SAE J461/J462: Automotive and locomotive applications .
- Federal QQ-C-390: General-purpose industrial compliance .
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) .
C95500 copper tube is a nickel-aluminum bronze alloy material. Its production process and product advantages are as follows:
1. Production process
Smelting and casting
Raw materials (such as cathode copper, phosphor copper alloy, etc.) are melted at high temperature (about 1200℃) in an industrial frequency furnace.
It is formed by horizontal continuous casting process and then water-cooled to 50℃ to form a preliminary copper tube billet.
Rolling and stretching
Surface impurities are removed by milling, and then fine-processed by planetary rolling, triple drawing, and disk drawing to ensure high dimensional accuracy (such as small eccentricity and smooth inner and outer surfaces).
The stretching process uses high-speed tandem drawing machine and floating core head technology to further improve surface quality and dimensional consistency.
Heat treatment
Solution treatment: 870~910°C insulation for 1 hour and then water quenching to significantly improve strength and hardness
Annealing treatment: 620~660°C insulation for 2 hours and air cooling to optimize material ductility and fatigue resistance.
Surface treatment and testing
The surface can be polished, mirrored, lined and other treatments to meet different needs.
Use spectrometers, electronic tensile machines and other equipment to strictly test chemical composition, mechanical properties and surface defects.
2. Product advantages
Excellent mechanical properties
Tensile strength is as high as 620~760 MPa (as cast or after heat treatment), yield strength is 275~415 MPa, and Brinell hardness is 190~422 HB.
Good high temperature stability, can maintain stable performance at 400°C.
Excellent corrosion resistance
It has strong resistance to seawater, salt water, acidic media, etc., especially suitable for marine engineering (such as propellers, valves) and chemical equipment.
It performs better than austenitic stainless steel in chlorine-containing environments, sulfides and bleaching liquids.
Wear resistance and processing performance
High hardness (up to 200 HB or more after heat treatment) and wear resistance, suitable for heavy-loaded parts (such as bearings, gears).
It has good processing performance and supports a variety of processes such as welding, brazing, and stamping. It has high ductility and is easy to bend and form.
Wide applicability
It complies with international standards such as ASTM, DIN, and GB, has a wide range of sizes (outer diameter 2~800mm, wall thickness 0.1~60mm), and can be customized in special shapes (round, square, hexagonal, etc.).
The application areas cover multiple industries such as air conditioning, ships, electronics, construction, and petroleum.
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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