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C63020 rods are available in a wide range of sizes to meet diverse industrial demands. Key specifications include:
- Diameter range: 1.0 mm to 300 mm (covering precision components to large structural parts) .
- Standard length: 6 meters (fixed-length stock). Custom lengths (e.g., up to 20 meters) are achievable for specialized applications like mineral-insulated cables .
Surface finishes vary based on processing:
- Black (hot-rolled) rods: Rough surface for general industrial use.
- Cold-drawn/polished rods: Smooth finish for precision machining.
- Ground rods: Ultra-precise tolerances (±0.02 mm) for high-end applications .
International Standards Governing C63020 Rods
C63020 rods are produced and tested under stringent international standards to ensure quality and performance consistency.
A. ASTM Standards
- ASTM B150/B150M: The primary standard for aluminum bronze rods, bars, and shapes. Key requirements include:
- Chemical composition: Strict control of Al, Ni, and Cu content to meet mechanical benchmarks.
- Heat treatment:
- Quenching: Heated to 1550–1650°F (843–899°C) for ≥2 hours, followed by water quenching.
- Tempering: Reheated to 900–1000°F (482–538°C) for ≥2 hours, then air-cooled to achieve ≥26 HRC hardness .
- Dimensional tolerances: Agreed upon between supplier and purchaser, ensuring flexibility for custom applications .
B. ASME Standards
- ASME Boiler and Pressure Vessel Code (BPVC): Incorporates ASTM B150 for components used in high-pressure and high-temperature environments, such as valves and fittings .
C. Other Relevant Standards
- AMS 4640/4590: Aerospace Material Specifications for forged/extruded rods in landing gear and actuator systems .
- GB 4429 (China): Aligns with ASTM B150 for compatibility in global supply chains .
- 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 rod:
1. Production process
Raw material processing and smelting
Raw materials usually include scrap brass, scrap copper, zinc ingots, etc., which are sorted and put into industrial frequency furnace or medium frequency electric furnace for smelting. Smoke and slag are generated during the smelting process. The slag can be recycled and the smoke is treated by the dust removal system.
Aluminum bronze alloys (such as C63020) need to add aluminum, nickel, iron and other elements in proportion to improve material properties.
Continuous casting and forming
The molten copper liquid enters the continuous casting link after being treated in the insulation furnace, and forms a continuous casting rod through the cooling circulating water system.
For high performance requirements, the copper rod after continuous casting needs to be hot extruded to improve density and surface smoothness.
Subsequent processing
The copper rod after hot extrusion may be skinned and annealed (such as 600℃ annealing) to eliminate internal stress and optimize mechanical properties.
Some processes also include steps such as polishing, sawing, and straightening to ensure dimensional accuracy.
4. Technical features
The mainstream domestic production method is extrusion, combined with continuous casting technology to achieve automation and high yield.
Some companies use short-process technology (such as continuous extrusion of copper wire rods) to reduce energy consumption and improve efficiency.
2. Product advantages
Excellent mechanical properties
C63020 is a high-strength heat-resistant aluminum bronze with both wear resistance and corrosion resistance, suitable for high-temperature environments of 400~500℃ (such as gears, bushings, etc.).
The density and surface quality of extruded products are better than those of cast rods, and the tensile strength and hardness are higher.
Diverse specifications and forms
It can produce rods with a diameter of 6-500mm, plates with a thickness of 0.5-80mm and customized pipes, supporting zero cutting and special shape processing.
Provide material certification to ensure that the chemical composition and mechanical properties meet the standards (such as CuAl11Ni6Fe5 alloy).
Wide range of application areas
Applicable to heavy machinery, ships, power, petrochemical and other industries, especially in wear-resistant and high-load scenarios.
Support customized needs to meet the special requirements of different industries for material strength and corrosion resistance.
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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