The Comprehensive Guide to Brass Shim Stock
Brass shim stock is a versatile material used in various industrial and DIY applications. Known for its durability, corrosion resistance, and excellent mechanical properties, brass shim stock is available in different thicknesses and sizes to meet specific requirements. This guide aims to provide an in-depth look at brass shim stock, including its types, applications, and technical features, helping you choose the right product for your needs.
| Type | Thickness Range | Material Grade | Applications |
|---|---|---|---|
| CDA 260 Brass Shim Stock | 0.001″ to 0.030″ | CDA 260 | Precision shimming, gasket applications |
| B36 Cartridge Brass | 0.001″ to 0.030″ | B36 | Electrical components, plumbing |
| Half Hard Brass | 0.001″ to 0.020″ | CDA 260 | Light stamping, forming |
| Full Hard Brass | 0.002″ to 0.020″ | CDA 260 | Applications requiring higher strength |
| Sheet Brass | Up to 24” x 36” | B36 | General fabrication, custom parts |
Types of Brass Shim Stock
Brass shim stock comes in various types, each suited for specific applications. Understanding these types will help you select the appropriate material for your project.
CDA 260 Brass Shim Stock
CDA 260 brass is a popular choice for shim stock due to its combination of strength and corrosion resistance. It is often used in precision applications where tight tolerances are necessary.
B36 Cartridge Brass
This type is known for its excellent machinability and corrosion resistance. B36 cartridge brass is frequently used in electrical and plumbing applications.
Half Hard Brass
Half hard brass offers a balance between formability and strength, making it suitable for light stamping and forming processes without compromising durability.
Full Hard Brass
For applications requiring higher strength, full hard brass is the ideal choice. It provides excellent tensile strength and is often used in demanding environments.
Sheet Brass
Sheet brass is available in larger dimensions and is easier to handle than rolled stock. It is ideal for general fabrication and custom parts.
Applications of Brass Shim Stock
Brass shim stock has a wide range of applications across various industries. Here are some common uses:
Aerospace
In the aerospace industry, brass shim stock is employed for precision shimming in aircraft components, ensuring proper fit and alignment.
Automotive
Brass shim stock is used to create gaskets and spacers in automotive assemblies, where durability and resistance to environmental factors are crucial.
Electrical
Due to its excellent conductivity, brass shim stock is often utilized in electrical applications, such as components, connectors, and terminals.
Manufacturing
In manufacturing, brass shim stock is used for precision tooling and machinery adjustments, allowing for accurate tolerances in production.
Plumbing
Brass shim stock is commonly used in plumbing applications, providing reliable seals and fittings due to its corrosion resistance.
Technical Features of Brass Shim Stock
| Feature | CDA 260 Brass | B36 Cartridge Brass | Half Hard Brass | Full Hard Brass |
|---|---|---|---|---|
| Thickness Range | 0.001″ to 0.030″ | 0.001″ to 0.030″ | 0.001″ to 0.020″ | 0.002″ to 0.020″ |
| Tensile Strength (psi) | 57,000 – 67,000 | 60,000 – 70,000 | 55,000 – 65,000 | 70,000 – 80,000 |
| Hardness (Rb) | 56 – 68 | 58 – 70 | 45 – 55 | 70 – 80 |
| Corrosion Resistance | Excellent | Good | Moderate | Good |
| Formability | Good | Good | Excellent | Limited |
Selecting the Right Brass Shim Stock
Choosing the right brass shim stock depends on several factors, including the specific application, required thickness, and environmental conditions. Here are some tips for making the right choice:
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Determine Application Needs: Identify the specific requirements of your project. Consider factors like load-bearing capacity, corrosion resistance, and environmental exposure.
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Select Appropriate Thickness: Choose a thickness that meets your application’s tolerances. Refer to the thickness range table to find suitable options.
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Consider Material Properties: Evaluate the mechanical properties of the brass shim stock. For high-stress applications, opt for full hard brass, while lighter applications may benefit from half hard or CDA 260 brass.
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Evaluate Formability: If forming or shaping is required, ensure the selected shim stock has the necessary mechanical properties to withstand the process without cracking.
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Review Standards and Certifications: Check for relevant standards such as ASTM B-19, B-36, and SAE-CA-260 to ensure compliance with industry regulations.
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Conclusion
Brass shim stock is an essential material across various industries, offering durability, corrosion resistance, and versatility. By understanding the different types and applications of brass shim stock, you can make informed decisions and select the right product for your needs. Whether you are in the aerospace, automotive, electrical, or plumbing sector, brass shim stock provides the reliability and performance required for demanding applications.
FAQ
What is brass shim stock?
Brass shim stock is a thin sheet or roll of brass used for shimming applications. It is available in various thicknesses and grades, allowing it to be used in precision applications where adjustments are necessary.
What are the common applications of brass shim stock?
Brass shim stock is commonly used in aerospace, automotive, electrical, manufacturing, and plumbing industries for precision shimming, gaskets, and spacers.
How do I choose the right thickness of brass shim stock?
Selecting the right thickness depends on the specific application and required tolerances. Consult the thickness range and application needs to make an informed decision.
What is the difference between half hard and full hard brass?
Half hard brass offers better formability and is suitable for light stamping, while full hard brass provides higher tensile strength and is ideal for demanding applications.
How is brass shim stock packaged?
Brass shim stock is typically available in rolls or flat sheets. Rolls are convenient for cutting to size, while sheets are easier to handle for specific applications.
Does brass shim stock resist corrosion?
Yes, brass shim stock, especially CDA 260 and B36 cartridge brass, offers good corrosion resistance, making it suitable for various environments.
Can brass shim stock be welded?
Brass can be welded, but it requires specific techniques and precautions to prevent cracking and ensure a strong bond. It is recommended to consult a welding professional.
What standards should I look for in brass shim stock?
Common standards include ASTM B-19, B-36, and SAE-CA-260, which ensure quality and compliance for various applications.
Where can I buy brass shim stock?
Brass shim stock can be purchased from various suppliers, including McMaster-Carr, Grainger, Online Metals, Staples, MSC Industrial Supply, Global Industrial, and Artus Corporation.
Is brass shim stock easy to cut?
Yes, brass shim stock is relatively easy to cut with standard cutting tools, making it convenient for custom applications and adjustments.