Payment & Shipping Terms:
|Type:||Welded||Special Pipe:||Brake Tubes|
|Surface Treatment:||Black||Technique:||Cold Drawn|
|Grade Group:||10#-45#||Outer Diameter(Round):||4.76 - 8.00 Mm|
|Thickness:||0.7 - 1.0 Mm||Length:||Straight Length Or Coil|
Low Carbon Steel Tube Small Diameter For Automobiles
Copper brazed double wall steel tube is made of steel strips which is copper plated on both sides.It has widely applied for automobiles,refrigerators and the other hydraulic system industries.
Dimension and specification
|O.D. mm||Thickness mm||Weight g/m||Assurance pressure kg/cm3|
O.D. and W.T. +/-0.08mm
C ≤ 0.12%
Mn ≤ 0.50%
Tensile strength ≥30kgf/mm2
Yield point ≥18kgf/mm2
Expand test Take 3 samples of 200mm,expand the pipe outside dimension to larger than 25%
Internal cleanliness Particle and oil <0.194g/m2
1~ Incoming Raw Material Inspection
2~ Raw Material Segregation to avoid steel grade mix-up
3~ Heating and Hammering End for Cold Drawing
4~ Cold Drawing and Cold Rolling, on line inspection
5~ Heat Treatment, +A, +SRA, +LC, +N, Q+T
6~ Straightening-Cutting to specified length-Finished Measuring Inspection
7~ Machanical Testing in own labs with Tensile Strength, Yield Strength, Elongation, Hardness, Impact, Mictrostruture etc
8~ Packing and Stocking.
A: A professional steel pipes materials inventor, manufacturer and solution provider
A: Generally it is 7-14 days if the goods are in stock. or it is 30-60 days if the goods are not in stock, it is according to quantity.
A: Yes, we could offer the sample for free charge but need pay the cost of freight.
A: Payment<=1000USD, 100% in advance. Payment>=1000USD, 30% T/T in advance ,balance before shippment.
If you have another question, pls feel free to contact us