Core Principles for Selecting Copper Tube Materials

Square Copper Mould Tubes

Choosing the right copper tube material isn’t just about picking a type—it’s about matching it to your project’s unique needs. From performance demands to avoiding scams, here’s how to make the best call.

1. Prioritize “Performance Needs”

Start by defining what your tube needs to do.

  1. For conductivity or thermal transfer: Pure copper (T2, TP2) is unbeatable. It’s the top choice for motor windings, air conditioner evaporators, or any part where heat or electricity needs to flow efficiently.
  2. For easy processing and low cost: Brass (H62, H65) is your go-to. It’s perfect for plumbing pipes, decorative items, or parts that need bending or shaping without breaking the bank.
  3. For corrosion resistance (seawater, chemicals): Skip ordinary brass. Opt for aluminum bronze or tin bronze—they stand up to harsh environments where other materials would corrode quickly.
  4. For welding and sealing (e.g., refrigeration lines): TP2 (phosphorus-deoxidized copper) outperforms regular pure copper. Its low oxygen content prevents porous welds, ensuring tight, reliable seals.

2. Watch Out for “False Material Labeling”

Not all copper tubes are what they claim to be. Stay sharp with these checks:

  1. Brass masquerading as pure copper: Pure copper (red copper) has a reddish-purple tint, while brass is golden yellow. If colors are tricky, ask for a composition report—don’t rely on looks alone.
  2. Low-copper brass labeled as high-grade: H59 (with 5% less copper than H62) is often passed off as H62 to cut costs. Insist on a spectral analysis report to verify copper and zinc levels.
  3. Toxic brass in sensitive areas: Never use lead brass (HPb59-1) for drinking water fittings. Check the material report for lead content—safe options for water must have ≤0.01% lead to meet hygiene standards (GB/T 17219).

By focusing on your needs and verifying material claims, you’ll avoid costly mistakes and ensure your copper tubes perform as expected.

We offer high purity copper mould tube with different coating options, to provide the best profermance.


Post time: Jul-25-2025