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Low Carbon Automotive Steel Tubes Small Diameter For Automobiles Brake Tubes

Product Details:
Place of Origin: Zhejaing China
Brand Name: TORICH
Certification: ISO 9001
Model Number: J527 B
Payment & Shipping Terms:
Minimum Order Quantity: 2 Tons
Price: negotiable
Packaging Details: In wooden boxes packaging.
Delivery Time: 3-5 weeks
Payment Terms: L/C, D/A, D/P, T/T, Western Union, MoneyGram
Supply Ability: 500 Tons per month

Detail Information

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
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low carbon steel tube


low carbon steel pipe

Product Description

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
4.76 0.7 70.28 350
6.00 0.7 91.76 350
6.35 0.7 97.75 350
7.00 0.7 108.75 350
7.14 0.7 111.17 350
8.00 0.7 126.31 350



O.D. and W.T. +/-0.08mm


Chemical Composition

C ≤ 0.12%

Mn ≤ 0.50%

P≤ 0.04%

S≤ 0.045%


Mechanical properties

Tensile strength ≥30kgf/mm2

Yield point ≥18kgf/mm2


Hardness(HR30T)≤ 65


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.



Q: Are you trading company or manufacturer ?

A: A professional steel pipes materials inventor, manufacturer and solution provider

Q: How long is your delivery time?

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.

Q: Do you provide samples ? is it free or extra ?

A: Yes, we could offer the sample for free charge but need pay the cost of freight.

Q: What is your terms of payment ?

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



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