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C63020 tubes are available in various forms, including seamless, welded, and round tubes. Key dimensional ranges (from multiple suppliers and standards):
International Standards for C63020 Copper Tubes
C63020 is governed by several aerospace and industrial standards:
ASTM B150/B150M
- Specifies requirements for aluminum bronze rods, bars, and shapes, including C63020.
- Covers chemical composition, mechanical properties, and heat treatment (e.g., quenching and tempering) .
ASME SB-150/SB-150M
- Adopted by the ASME Boiler and Pressure Vessel Code for nonferrous materials.
- Mandates heat treatment for C63020 tubes:
- Quenching: 1550–1650°F (843–899°C) for ≥2 hours, followed by water cooling.
- Tempering: 900–1000°F (482–538°C) for ≥2 hours, air-cooled .
AMS Standards
- AMS 4640 and AMS 4590: Aerospace Material Specifications for high-strength, wear-resistant components like landing gear bearings .
JIS Q9100
- Japanese industrial standard for aerospace quality management, applicable to C63020 tubes used in critical systems .
Chemical Composition of C63020 Copper Alloy:
- Copper (Cu): ≥74.5%
- Aluminum (Al): 10.0–11.0%
- Nickel (Ni): 4.2–6.0%
- Iron (Fe): 4.0–5.5%
- Zinc (Zn): ≤1.5%
- Manganese (Mn): ≤1.5%
- Silicon (Si): ≤2.0%
- Phosphorus (P): ≤0.6%
- Lead (Pb): ≤0.03%
Mechanical Properties of C63020 Copper Alloy:
Tensile Strength:
- Ultimate Tensile Strength (UTS): 650–700 MPa (or N/mm²)
- Yield Strength (0.2% Offset): 320–400 MPa (or N/mm²)
Elongation:
- % Elongation (in 50 mm): 10–12%
Hardness:
- Rockwell Hardness (HRB/HRC): Specific values not directly listed in evidence, but the alloy is described as "high-strength" with hardness suitable for heavy-load applications .
High-Temperature Performance:
- Maintains stable mechanical properties at elevated temperatures (up to 400–500°C)
Production process and product advantages of C63020 copper tube:
Production process
Raw material smelting and continuous casting
The production of C63020 copper tube begins with the smelting of cathode copper and phosphor copper alloy, which are melted at a high temperature of 1200℃ in an industrial frequency furnace. It is then formed by a horizontal continuous casting process and water-cooled to 50℃ to form a preliminary tube billet.
Rolling and drawing
The tube billet after continuous casting is milled to remove the surface oxide layer, and then gradually processed to the target size through planetary rolling (such as the planetary tube rolling method used by Jiangxi Copper) and triple drawing, coiling and other processes. This process can effectively improve the density and mechanical properties of the material.
It is particularly mentioned that the smooth copper tube adopts the horizontal continuous casting-planetary rolling method, while the internal threaded tube is produced by the planetary ball mold spinning process to ensure product accuracy.
Annealing and surface treatment
Online annealing is required during the processing process to eliminate stress, followed by surface cleaning (which may produce waste cleaning agent) and rewinding flaw detection to ensure the surface quality and internal defect-free of the final product.
Quality Control
Non-destructive testing methods such as electromagnetic testing and pressure testing (water pressure or air pressure) are used during the production process to ensure that the products meet international standards such as ASTM. In addition, certifications such as JISQ9100:2009 (for aviation) further guarantee the high reliability of the material.
Product Advantages
High Strength and High Temperature Resistance
The tensile strength of C63020 aluminum bronze can reach 621-1200 MPa, and it can still maintain stable mechanical properties at high temperatures of 400-500℃, which is suitable for manufacturing parts in high temperature and high pressure environments, such as turbine worm gears, flanges, etc.
Excellent Corrosion Resistance
The alloy exhibits excellent corrosion resistance in the atmosphere, fresh water and seawater, and is especially suitable for parts that are in long-term contact with corrosive media such as ship propellers and chemical valves.
Wear Resistance and Machinability
The high hardness (such as Rockwell hardness standard) and anti-friction properties of aluminum bronze make it an ideal choice for wear-resistant parts such as bushings and gears. At the same time, its good machinability and weldability (but not easy to braze) improve manufacturing efficiency.
Wide range of application areas
Covering machinery manufacturing (bushings, gears), shipbuilding industry (thrusters, bearings), chemical equipment (pump bodies, valves), aerospace (landing gear bearings) and power engineering (conductive parts) and other fields.
Comprehensive advantages of material properties
The addition of nickel further improves the strength, corrosion resistance and high temperature performance of the alloy. Its thermal conductivity also helps the equipment to dissipate heat and improve operational stability.
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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