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Introduction
H70 Brass Tube is a 70% copper, 30% zinc alloy tube offering good strength, corrosion resistance, and formability, suitable for heat exchangers, plumbing, precision instruments, and decorative applications.
Advantage
Good Ductility - elongation ≥25%, easy to bend, flare, or deep draw without cracking.
Corrosion Resistance - Excellent resistance to dezincification and mild chemical corrosion.
Thermal and Electrical Conductivity - High copper content ensures efficient heat transfer.
Precision and Smooth Surface - Outer diameter tolerance ±0.05 mm, bright or polished finish, suitable for instruments and tight-tolerance applications.
Specification
|
Property |
Specification |
|
Material |
H70 Brass (CuZn30) |
|
Copper (Cu) |
68.5–71.5% |
|
Zinc (Zn) |
Balance |
|
Standard |
ASTM B111 / JIS H3300 / EN CW505L |
|
Outer Diameter |
4 mm – 120 mm |
|
Wall Thickness |
0.5 mm – 10 mm |
|
Length |
Up to 6000 mm or as required |
|
Temper |
Soft, Half-Hard, Hard |
|
Tensile Strength |
≥ 350 MPa |
|
Elongation |
≥ 25% |
|
Surface Finish |
Bright, Polished, or Pickled |
|
Tolerance |
±0.05 mm or as per order |
Application
Heat Exchangers & Condensers: Efficient heat transfer, low maintenance.
Plumbing & Marine Systems: Pipes, pump lines, condenser tubing.
Instrumentation & Valves: Smooth bore and dimensional accuracy for precise fittings.
Architectural & Decorative: Handrails, lighting fixtures, ornamental structures.
Customization Services
|
Item |
Options |
|
Size & Length |
Custom OD, wall thickness, cut-to-length |
|
Surface Finish |
Bright, polished, brushed |
|
Fabrication |
Bending, flaring, machining per drawings |
|
Packaging |
Seaworthy, moisture-proof, export-ready |
Our certificates
What We Offer
- Respond to inquiries within 24 hours and provide quotations quickly
- Technical support and material advice
- Replacement or refund for quality issues
- Global delivery by sea or air with secure packaging.
Our Strength
Reliable Quality - ISO-certified processes and partnerships with leading steel mills guarantee consistent material quality.
Large Inventory - An extensive stock of plates, pipes, and rods enables fast order fulfillment.
Custom Processing & OEM - Advanced machining centers provide cutting, bending, CNC machining, welding, and branding in accordance with customer specifications.
Rapid Customer Response - Professional 24/7 service ensures quick responses to technical and logistics inquiries.
FAQ
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