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Detailed size range:
According to the evidence, the diameter range of C54400 copper wire is 1.0 mm to 18.0 mm. In addition, for C54400 alloy in different states, its diameter range can be further refined:
Y state (annealed state): diameter ranges from 1.6 mm to 6 mm, tensile strength is 450 N/mm², and elongation is 8%.
D state (hard state): diameter ranges from 6 mm to 12 mm, tensile strength is 415 N/mm², and elongation is 10%.
F state (medium hardness): diameter ranges from 12 mm to 25 mm, tensile strength is 380 N/mm², and elongation is 12%.
When the diameter is greater than 25 mm, the tensile strength is 345 N/mm² and the elongation is 15%.
International standards:
C54400 copper wire meets the following international standards:
American ASTM/CDA standard: CuSn4Zn4Pb4.
German DIN/EN standard: DIN 416.
Japanese JIS standard: JIS C4541.
Chinese GB/QB standard: QSn4-4-4.
The main components of C54400 are copper as the base, with elements such as tin, lead, zinc and phosphorus added. The specific ranges are as follows:
Copper (Cu): balance (usually accounting for about 87%-89%).
Tin (Sn): 3.5%-4.5% (some documents extend to 3.0%-5.0%).
Lead (Pb): 3.4%-4.5% (key element, improving cutting performance).
Zinc (Zn): 1.5%-4.5% (some documents are marked as 3.0%-5.0%).
Phosphorus (P): 0.01%-0.50% (enhancing wear resistance and rigidity).
Other elements: Iron (Fe) ≤0.10%, the total of impurities such as aluminum (Al) and antimony (Sb) ≤0.2%.
Mechanical properties are significantly affected by the material state (such as annealing, cold working, heat treatment), and the main parameters are as follows:
Tensile strength
Range: 275 MPa (annealed state) to 745 MPa (spring aged state).
Typical value: 345-450 MPa for hard bars, up to 670 MPa for spring aged (H08).
Yield strength
Range: 131-434 MPa, depending on the processing state.
Elongation
Annealed state: up to 50% (some literature marked as 8%-18%).
Hard state: ≥8% (such as hard bars).
Hardness
Rockwell hardness (HRB): 7 (soft state) to 97 (superhard state).
The Rockwell B hardness of spring aged (H08) is 92.
Modulus of elasticity: 110 GPa (Young's modulus), shear modulus 40 GPa.
Other key properties
Processing performance
Cold workability: Excellent, suitable for stamping, bending and other processes, but the lead content limits deep drawing.
Hot workability: Not recommended, because lead may cause hot brittleness.
Weldability: Good soldering and brazing, but not suitable for oxyacetylene welding.
Corrosion resistance
Excellent performance in seawater, atmosphere and acid and alkali environment, suitable for marine engineering.
Application areas
Bearings, bushings, gears, valve parts, electrical connectors, etc.
C54400 copper wire is a high-performance copper alloy based on tin-phosphor bronze, and its production process and product advantages are outstanding in many aspects.
1. Production process
Chemical composition and basic materials
The main components of C54400 copper wire include copper, tin, lead, zinc and phosphorus, of which the tin content is 3.5%-4.5%, the lead content is 3.4%-4.5%, the zinc content is 1.5%-4.5%, and the phosphorus content is 0.01%-0.5%. The reasonable ratio of these components gives C54400 excellent mechanical properties and processing properties.
Production process
According to the evidence, the production process of C54400 copper wire includes the steps of rough drawing and unwinding, mechanical shelling, cold water washing, electrolytic pickling, hot water washing, boron coating, wire drawing, wire winding and storage. In addition, it also involves stranding, rope closing, inspection, packaging and warehousing to ensure that the quality and specifications of the finished product meet the requirements.
Special treatment
During the production process, C54400 copper wire is heat treated to improve its strength and hardness while maintaining good machinability and cold working properties. The heat treatment temperature is usually controlled between 900°F and 1250°F to optimize its physical properties.
2. Product advantages
Machinability and cold working properties
C54400 copper wire has excellent machinability and cold working properties, which makes it an ideal material for manufacturing precision parts. Its machinability reaches 90% of ordinary brass, and it performs well in turning, milling and drilling processes.
High strength and wear resistance
Due to the addition of tin and lead, C54400 copper wire has high strength and wear resistance, and is suitable for manufacturing parts that are subject to friction, such as bearings, bushings, gears and thrust rings.
Corrosion resistance
C54400 copper wire exhibits excellent corrosion resistance in seawater, atmosphere, acid and alkali environments, especially in the field of marine engineering, such as ship propellers, pump bodies and valves. It has a wide range of applications.
Electrical conductivity and thermal conductivity
As a copper-based alloy, C54400 inherits the excellent electrical conductivity and thermal conductivity of copper and is widely used in the field of electrical equipment manufacturing.
Welding performance
C54400 copper wire can be welded by a variety of methods such as brazing, hard welding and soft soldering, and the welding effect is good and it is not easy to crack or deform.
Wide application
Due to its excellent comprehensive performance, C54400 copper wire is widely used in aviation, automobile, machinery manufacturing, marine engineering, electronics and electrical and other fields. For example, in the automotive industry, it is used to manufacture key components such as connectors, bushings and transmission gears.
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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