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C36000 copper wire is available in a variety of diameters, including:
Common diameters: 0.5 mm, 1.2 mm, 1.5 mm, 2.5 mm, 3 mm, etc.
Wider range: Brass wires with diameters from 0.08 mm to 24 mm are available, but they need to be selected based on specific application requirements.
International Standards
C36000 copper wire complies with the following international standards:
ASTM Standards:
ASTM B16: Specification for chemical composition and mechanical properties of free-cutting brass bars, rods and shapes, covering C36000 alloy.
ASTM B249/B249M: Specifies dimensional tolerances for brass products in straight bars or coils.
SAE Standard: The corresponding grade in SAE J461 is B16.
Chinese Standard: The corresponding grade in GB/T 5231-2012 is HPb62-3, and the corresponding grade in GB/T 26048-2010 is CA360.
Other Standards: AMS 4610 (Aerospace Materials Specification) also covers C36000 alloy.
Main components:
Copper (Cu): 60.0%-63.0%
Zinc (Zn): As a balance, the content is about 32.5%-37.5%
Lead (Pb): 2.5%-3.7%, used to improve cutting performance
Iron (Fe): ≤0.35%
Other impurities (such as aluminum, phosphorus, sulfur, etc.): total ≤0.5%
Other trace components:
Aluminum (Al) ≤0.5%, used to strengthen the alloy
Sulfur (S), phosphorus (P), etc. ≤0.01%
Mechanical properties (by state)
Annealed state (O60)
Tensile strength: 330 MPa
Yield strength: 140 MPa
Elongation: 15-23%
Hardness: Brinell hardness (HB) about 80-90
Elastic modulus: 100 GPa
Shear strength: 210 MPa
Semi-hard state (H02)
Tensile strength: 360-395 MPa
Yield strength: 140-170 MPa
Elongation: 7-17%
Hardness: Brinell hardness (HB) about 90-100
Hard state (H04)
Tensile strength: 550 MPa
Yield strength: 310 MPa
Elongation: 4%
Hardness: Brinell hardness (HB) about 130
Other key properties
Fatigue strength: 135 MPa (hard state)
Impact toughness: Izod impact energy about 8 ft·lbf (11 J)
Shear modulus: 39 GPa
Poisson's ratio: 0.31-0.34
The production process and product advantages of C36000 copper wire can be summarized as follows:
1. Production process
The production process of C36000 copper alloy mainly includes the following steps:
Making and smelting: According to the alloy composition requirements (copper 60.0-63.0%, lead 2.5-3.7%, zinc balance, etc.), accurately weigh the raw materials and melt them into liquid to ensure uniform mixing of elements.
Casting: The molten copper liquid is poured into castings, and common forms include bars, plates, pipes, etc.
Heat treatment: Adjust the organizational properties through annealing (425-700°C) or aging hardening to improve hardness, strength or ductility.
Machining:
Hot processing: Suitable for forging, extrusion, etc., with a temperature range of 625-800°C.
Cold processing: Formed by rolling, wire drawing, cutting and other processes, and secondary annealing may be required after processing to eliminate stress.
Surface treatment: Such as polishing, plating, etc., to enhance corrosion resistance or aesthetics.
For copper wire production, it may involve processes such as wire drawing, bundle twisting, and insulation extrusion (such as the insulation copper wire process of ), but the core process of C36000 is still mainly alloy preparation and forming.
2. Product advantages
Due to its unique composition and process, C36000 copper alloy has the following advantages:
Excellent cutting performance:
The cutting index reaches 100% (industry benchmark), the chip breaking is smooth, suitable for high-speed drilling, milling and other precision processing, and the tool wear is low.
Known as the "benchmark for easy-to-cut brass", it has a high surface finish and is suitable for precision parts such as watch parts and gears.
Excellent mechanical properties:
Tensile strength: 330-350 MPa in annealed state, and up to 550 MPa in hard state.
Hardness: Brinell hardness 80-150 HB, which can be further improved through work hardening.
Ductility: The elongation can reach more than 30%, suitable for hot and cold forming.
Good corrosion resistance:
It has strong corrosion resistance to seawater, atmosphere, and freshwater environments, and is suitable for ships, plumbing accessories, etc.
Electrical and thermal conductivity:
Although the conductivity is lower than pure copper, it is still better than most alloys, and is suitable for electrical connectors, heat dissipation components, etc.
Multifunctional processing adaptability:
Supports a variety of processes such as casting, forging, extrusion, welding (soft soldering/brazing is excellent, arc welding is not recommended).
Wide application areas:
Automobile: sensor housing, fluid connector, brake parts.
Electronics and electrical: connectors, switches, precision resistors.
Hardware and machinery: locks, valves, gears, pump bodies.
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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