‹
›
‹
›
Size range
The size range of C62300 copper rods varies depending on the processing method:
Extruded rods:
Extruded rods with a diameter of ≤50mm, tensile strength ≥600MPa;
Extruded rods with a diameter of 51~150mm, tensile strength ≥580MPa;
According to industry standards, the maximum diameter can reach 260mm (QA19-4 bronze).
Drawn rods/forgings:
The diameter range is wider, up to 6~500mm, and the length is 0.5~30 meters (forgings, drawn rods);
Cold-drawn bright rods have a diameter of 1.0~300mm and a length of 6 meters.
International standards
The main international standards for C62300 include:
ASTM B150/B150M-2008: It specifies the chemical composition, mechanical properties and dimensional tolerances of aluminum bronze rods and is the core implementation standard.
ASME Boiler and Pressure Vessel Code: It involves the application specifications of C62300 in pressure vessels.
Chinese standard GB/T 5231-2012: The corresponding grade is QAl9-4, which is compatible with ASTM standards.
Note
Detailed Chemical Composition of C62300 Aluminum Bronze
C62300 is an aluminum bronze alloy primarily composed of copper (Cu), aluminum (Al), and iron (Fe), with minor additions of manganese (Mn), silicon (Si), nickel (Ni), and tin (Sn). The chemical composition is standardized as follows:
Key Notes:
- Aluminum (Al) enhances strength, hardness, and corrosion resistance.
- Iron (Fe) refines grain structure and improves mechanical strength
- Trace elements like Mn and Si aid in deoxidation and improve workability
Mechanical Properties of C62300 Aluminum Bronze
C62300 exhibits excellent mechanical properties, making it suitable for demanding industrial applications. The values vary slightly depending on product form (e.g., extruded bars, forgings) and temper conditions (e.g., HR50, TQ50).
Typical Mechanical Properties
Physical Properties
Key Notes:
- High Strength-to-Weight Ratio: Ideal for components like gears and valve stems
- Wear Resistance: Suitable for bearings and bushings in marine and industrial environments
- Thermal Stability: Maintains performance in high-temperature applications (e.g., hydraulic systems)
Production process and product advantages of C62300 copper rod:
1. Production process
Raw material smelting
Use waste brass, waste copper and zinc ingots as raw materials, smelt through industrial frequency furnace, and add slag remover to optimize the purity of copper liquid. The smelting temperature needs to be precisely controlled to avoid impurities and oxidation.
Continuous casting and hot extrusion
The smelted copper liquid is formed into copper ingots through continuous casting process, and then hot extruded by large-tonnage reverse extruder (such as 38MN grade). This process can improve the density and surface finish of the material. The weight of a single extruded copper ingot can reach nearly 1 ton, which significantly improves the yield rate.
Drawing and annealing treatment
The extruded copper rod needs to be refined by drawing process, and the internal stress is eliminated by annealing furnace (700-750℃) to restore the ductility of the material. The hardness of the copper rod after annealing is reduced, which is convenient for subsequent processing.
Surface treatment
Some products will be chemically polished, electroplated or passivated to enhance corrosion resistance and prevent oxidation discoloration.
2. Product advantages
Excellent mechanical properties
Tensile strength ≥490MPa, yield strength ≥340MPa, elongation ≥16%, hardness HB ≥100, with high impact resistance and wear resistance.
Through reverse extrusion technology, the material density is higher, suitable for high-strength components such as gears and shafts.
Excellent corrosion resistance
Aluminum elements (8.5-10.0%) form a dense oxide film on the surface, which is especially resistant to seawater and chemical media corrosion, and has outstanding stress corrosion resistance.
Good processing adaptability
Supports cold/hot processing (such as cold drawing, hot rolling), forging and casting, with a cutting processability of 20% and good welding performance.
Electrical and thermal conductivity
The electrical conductivity is about 6.58% IACS, and the thermal conductivity is 58.6 W/(m·K), which is suitable for electrical components and heat exchange scenarios.
Wide range of applications
Used for high-demand components such as ship propellers, oil valves, aerospace fasteners, and automotive gears, covering energy, machinery, marine engineering, etc.
Economic Benefits
Although the cost is higher than ordinary brass, its long life and low maintenance requirements can reduce the overall cost of use and replace stainless steel or nickel-based alloys.
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.
Welcome To Your Inquiry
What can we help you?
