Low Carbon Colorful Bundy Tube

Colorful double wall bundy steel tube has fine inside cleanness, high strength, nice elongation, good foundation for late process , anti leakage, anti high pressure explosion, excellent anti corrosion power after surface treatment. It is an ideal material for tubes of condensation , evaporation and autos. The tube can be provided in coils or cut to straight length,etc.
Thickness of znic may reach 8μm,12μm,15μm,20μm,25μm.
If any questions,please contact sales@grandsteeltube.com

  • Description
  • Grand's Advantges
  • Specifications
  • Inquiry

Our workshop,located in Changzhou,covers an area of 13,000 square meters equipped with the state-of-art facilities to manufacture the double wall bundy steel tubes and single wall bundy steel tubes .

The monthly production capacity is 200,000 meters.

The materials are :SPCC,SPHC,SPCE,BHG1,BHG2,other materials can be achieved after discussion.

Mainly sizes are:4.76×0.70mm,6.35×0.70mm,8×0.70mm,9.53×0.70mm,10×0.70mm,12×0.70mm other size like:4.00×0.5mm,3.18×0.7mm,2.60×0.50mm is also produced according the requirements.other sizes can be achieved after discussion.

We have been delivering these tubes to Peru,France,Russia,South Korea for the automotive industry,since 2011.etc.If any questions,you are more than welcome to contact sales@grandsteeltube.com

1.  Production of  double wall/single wall bundy steel tubes since 2005.

2.  Working with customers from Europe,North America,South America,etc since 2006.

3.  Samples can be delivered within 10 days after confirmation

4.  40 days as the production period and delivery after order confirmation.

5.  200,000 meters of copper coated bundy steel tubes in stock.

6.  Sizes can be offered from OD:2.60mmxWT:0.5mm to OD:12.7mmxWT:1.24mm

7.  Third party inspection like:TUV,BV,SGS,etc accepted

8.  Professional team assists your special tube requirements.

9. Other related tubes can be offered :white/black/olive green galvanized bundy tubes;PVF bundy tube;etc

If any questions,you are more than welcome to contact sales@grandsteeltube.com




Wall Thickness Tolerance
<3/16"  (<4.76mm) ±0.0020" (±0.05mm)    0.03"    (0.7mm) ±0.0031" (±0.08mm)
3/16"~5/16" (4.76mm~8mm) ±0.0031" (±0.08mm)    0.039"     (1mm)  ±0.0039"    (0.1mm)
>5/16"  (>8mm) ±0.0059" (±0.15mm)

Chemical Composition
Element C Si Mn P S Alt
‰Max 0.6 0.3 3 0.3 0.3 0.2
Mechanical Properties
Tensile Strength 42000psi (290MPa)
Yield Strength 26100psi (180MPa)
Elongation ≥25%
Expansion ≥20%
Inside Surface Cleanliness ≤0.16g/m2

If any questions,you are more than welcome to contact sales@grandsteeltube.com

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