Copper Alloy

Common grades: H62 Brass, QSn6.5 Tin Bronze

H62 Brass

Physical & mechanical properties:

Moderate hardness, excellent thermal & electrical conductivity, good wear resistance, shock resistance and sealing performance.

Machinability:

Top-tier cutting performance, excellent surface finish, no tool sticking. Perfect for turning, milling and thread rolling with high mass production efficiency.

Dimensional stability:

Stable material property, easy to maintain tight tolerance for small precision rotational parts.

Surface treatment:

Polishing, tin plating and nickel plating. Better oxidation resistance than carbon steel.

Applications:

Copper sleeves, nuts, threaded parts, electrical terminals and small valve

Advantages & Disadvantages:

Advantages: Easy to machine, fine appearance, good conductivity & thermal conductivity, reliable sealing.

Disadvantages: Higher cost than carbon steel, limited strength for heavy load use.

QSn6.5 Tin Bronze

Physical & mechanical properties:

Self-lubricating, anti-seizure and outstanding wear resistance for high-speed friction scenarios.

Machinability

Average cutting performance, more suitable for precision grinding.

Application

High-speed sliding bearings, shaft sleeves and wear-resistant friction pairs.