Ningbo Jintian Copper (Group) Co., Ltd.
Ningbo Jintian Copper (Group) Co., Ltd.
Brass

CuZn38Pb1.5 Brass

Brass

Grade Name

CuZn38Pb1.5 (Leaded Brass)

International Designation: C38500 (ASTM)/CW617N (EN).


Product Features

  • Excellent machinability (lead improves cutting).

  • Good corrosion and wear resistance.

  • Moderate strength for precision components.

  • Easy to polish or plate.


Common Forms & Dimensions

Form

Dimensions

Bar

Diameter: Φ5mm–Φ150mm, Length: 1m–6m

Wire

Diameter: Φ0.5mm–Φ10mm, Coiled

Sheet

Thickness: 0.5mm–50mm, Width: ≤1000mm

Tube

OD: Φ10mm–Φ200mm, Wall: 1mm–20mm


Chemical Composition (%)

Element

Cu

Zn

Pb

Fe (≤)

Others (≤)

Content

58–61

Bal.

1.0–2.0

0.35

0.5


Physical Properties

Property

Value

Density

8.5 g/cm³

Melting Point

885–900°C

Electrical Conductivity

28% IACS (20°C)

Thermal Conductivity

115 W/(m·K) (20°C)

Thermal Expansion

20.2×10⁻⁶/K (20–300°C)


Mechanical Properties

Property

Value

Tensile Strength

≥340 MPa

Yield Strength

≥145 MPa

Elongation

≥15%

Hardness (HB)

75–110

Elastic Modulus

105 GPa


Key Advantages

  • High machining efficiency reduces costs.

  • Corrosion resistance for humid environments.

  • Suitable for complex precision parts.


Applications

  • Machinery: Valves, gears, bearings.

  • Electronics: Connectors, terminals.

  • Architecture: Decorative hardware, faucets.

  • Automotive: Fuel system components.


Processing Notes

  • Machining: Use HSS or carbide tools.

  • Cold Working: Annealing required.

  • Welding: Not recommended (lead vapor).

  • Surface Treatment: Ni/Cr plating advised.


Key Application Scenarios

  • CNC-machined precision parts.

  • Marine corrosion-resistant fasteners.

  • Wear-resistant components in appliances.


FAQ

Q1: Is it eco-friendly?

A: Contains lead; complies with RoHS exemptions.


Q2: Alternatives for lead-free use?

A: Use CuZn39Pb3 or special lead-free grades (lower machinability).


Q3: Resistance to seawater?

A: Requires protective coatings; periodic maintenance needed.


Standards Reference

  • International: ASTM B453, EN 12163.

  • China: GB/T 5231-2012.


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