C52400 Phosphor Bronze "10% D"bar/rod
C52400 is a phosphor bronze alloy primarily composed of copper (Cu), tin (Sn), and phosphorus (P).
Parameter
Chemical Composition
Mechanical Properties

Dimensional Specifications for C52400 Copper Rod

C52400 rods are available in a wide range of sizes to accommodate industrial needs:

  • Diameter Range:
    • Standard: 6 mm to 350 mm (0.24–13.78 inches) .
    • Custom Options: Some suppliers extend the upper limit to 500 mm (19.69 inches) for specialized applications .
  • Surface Finishes:
    • Polished (bright), turned (lathe-finished), or black (as-forged) surfaces .
  • Length:
    • Standard lengths up to 30 meters (98.4 feet), with custom cuts available .

International Standards Governing C52400 Copper Rod

C52400 rods comply with several key international standards:

  • ASTM Standards:
    • ASTM B103/B103M-2009: Specifies requirements for phosphor bronze rods, including chemical composition, mechanical properties, and dimensional tolerances .
    • ASTM B139/B159: Additional standards for copper alloy rods in specific service conditions .
  • JIS Standards:
    • JIS H 3250-2006: Japanese Industrial Standard for drawn copper and copper alloy rods, covering dimensional tolerances, mechanical properties, and surface quality .
  • EN Standards:
    • EN 12164:2016: European Standard for free-machining copper alloy rods, addressing composition, mechanical properties, and resistance to dezincification .
  • SAE Standards:
    • SAE J461/J463: Specifications for copper alloy rods in automotive and general engineering applications .

Chemical Composition

C52400 is a phosphor bronze alloy primarily composed of copper (Cu), tin (Sn), and phosphorus (P), with trace impurities controlled to specific limits. The chemical composition adheres to ASTM B159/159M-2017 standards and other relevant specifications :

ElementComposition Range (wt.%)
Copper (Cu)Balance (88.3–90.07%)
Tin (Sn)9.0–11.0%
Phosphorus (P)0.03–0.35%
Iron (Fe)≤0.10%
Lead (Pb)≤0.05%
Zinc (Zn)≤0.20%

Key Notes:

  • Sn enhances strength and corrosion resistance, while P improves hardness and wear resistance .
  • Impurity limits (Fe, Pb, Zn) ensure minimal impact on ductility and electrical properties .

Mechanical Properties

C52400 exhibits high tensile strength, elasticity, and fatigue resistance, making it ideal for demanding applications like springs and electrical contacts. Properties vary with temper (e.g., cold-worked vs. annealed states):

General Mechanical Properties
PropertyValue Range
Tensile Strength450–880 MPa

(Up to 950 MPa in T temper )
0.2% Yield StrengthNot explicitly stated, but inferred to align with tensile strength ranges.
Elongation~2.5% (in hardened states)
Elastic Modulus (Young’s Modulus)100–117 GPa
Shear Modulus41–42 GPa
Poisson’s Ratio0.34
Hardness- Rockwell B: 50–100

- Vickers (HV): 260–300 (T temper)
Thermal and Electrical Properties
PropertyValue
Thermal Conductivity50 W/m·K
Electrical Conductivity10–11% IACS
Melting Range- Solidus: 840°C

- Liquidus: 1000°C
Thermal Expansion Coefficient18.4 ×10⁻⁶/K (20–300°C)
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FAQ

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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