Brass CuZN40 Plates

Brass CuZn40 plates (EN grade CW509L) are widely recognized for their higher strength compared to CuZn37, while still offering good formability and machinability. With an increased zinc content, this alloy provides enhanced mechanical performance, making it suitable for structural, automotive, and engineering applications where durability and reliability are essential.

Brass CuZn40 plates are commonly used in industries that demand robust performance, precision machining, and long service life.

What is Brass CuZn40?

Brass CuZn40 is a high-strength alpha-beta brass alloy composed of approximately 60% copper and 40% zinc. This composition results in improved hardness and strength compared to lower-zinc brass grades, while maintaining acceptable ductility for fabrication.

Key Benefits of Brass CuZn40 Plates

• Higher strength than CuZn37

• Good machinability and wear resistance

• Reliable corrosion resistance in normal environments

• Uniform structure for consistent fabrication

• Suitable for both hot and cold working

These properties make Brass CuZn40 plates a dependable choice for heavy-duty and precision components.

Chemical Composition of Brass CuZn40 Plates

Typical chemical composition (% by weight):

• Copper (Cu): ~60%

• Zinc (Zn): ~40%

• Iron (Fe): ≤ 0.1%

• Other elements: Trace

This balanced composition provides an optimal combination of strength, hardness, and workability.

Mechanical Properties of Brass CuZn40 Plates

Typical mechanical properties (annealed condition):

• Tensile Strength: 430 – 550 MPa

• Yield Strength: ~180 MPa

• Elongation: 15 – 25%

• Hardness: ~100 HB

These values make Brass CuZn40 plates ideal for applications requiring greater load-bearing capacity than standard brass grades.

Standards & Specifications

Brass CuZn40 plates are produced in compliance with recognized international standards:

• EN 1652

• EN 12165

• CW509L

• ASTM B36 / B36M

Plates are available in various thicknesses, widths, and finishes to meet project-specific requirements.

Applications of Brass CuZn40 Plates

Due to their enhanced strength and machinability, Brass CuZn40 plates are widely used in:

• Automotive and transport components

• Electrical and mechanical fittings

• Industrial machinery parts

• Valves, fasteners, and connectors

• General engineering and fabrication

Their performance makes them suitable for both structural and precision-machined parts.

Corrosion Resistance & Surface Finish

Brass CuZn40 plates offer good resistance to atmospheric and mild industrial corrosion. Surface finishes such as polished, brushed, or coated can be applied to improve appearance and longevity, depending on application needs.

Why Choose Brass CuZn40 Plates from Siddhgiri Tubes?

Siddhgiri Tubes supplies Brass CuZn40 plates manufactured with strict quality control and advanced processing techniques. Each plate undergoes inspection for chemical composition, mechanical properties, and dimensional accuracy to ensure consistent performance.

Our global supply capability and commitment to quality make Siddhgiri Tubes a trusted source for industrial-grade brass plates.

Buying Guide – Brass CuZn40 Plates

When selecting Brass CuZn40 plates, consider:

• Compliance with EN and ASTM standards

• Required strength and thickness

• Surface finish and machining requirements

• Availability of material test certificates (MTC)

Choosing a reliable supplier ensures quality assurance and timely delivery.

Conclusion

Brass CuZn40 plates deliver an excellent balance of strength, durability, and machinability, making them ideal for demanding industrial and engineering applications. Their higher zinc content provides improved mechanical performance, while maintaining versatility in fabrication.

For premium-quality Brass CuZn40 plates produced to international standards, Siddhgiri Tubes stands as a dependable manufacturing and supply partner.