Double-Layer Coiled Pipe In Automobile Braking System And Fuel Transportation Pipeline
SAE J526 Welded low-carbon tubing
EN10305-6 Welded cold drawn tubes from hydraulic and pneumatic power systems
ASTM A254 Copper-brazed steel tubing
BHG1, SPCC, SPCD, SPCEN, ST14, ST15, ST16, DC04, DC05, DC06
| | | Elongation
(%) | inside clearness
(g/ m³) |
| 4.76 (3/16") X 0.71 | 110 | ≥25 | ≤0.16 |
| 6 X 0.71 | 85 | ≥25 | ≤0.16 |
| 6.35 (1/4") X 0.71 | 78 | ≥25 | ≤0.16 |
| 8 X 0.71 | 67.5 | ≥25 | ≤0.16 |
| 9.52 (5/16") X 0.71 | 55 | ≥25 | ≤0.16 |
| 12.7 (1/2") X 0.71 | 32 | ≥25 | ≤0.16 |
| Surface Treatment |
| | Color/white Zinc Plating | Oilve Green | PVF |
| Tensile strength | ≥290Mpa | ≥290Mpa | ≥290Mpa |
| Yield Strength | ≥180Mpa | ≥180Mpa | ≥180Mpa |
| Elongation | ≥25% | ≥25% | ≥25% |
| Salt spray Test | 192h/144h | 216h | 1000h |
Tube welding– Cold drawing (reduce diameter)– Annealing in Protected Atmosphere— Cleaning-- Leakage detection– Zinc/Copper Plating– Keep pressure (Airtightness) – Packing
| Coating | Thickness | Salt spray test duration |
| Copper/White Zinc/Colour-Zinc | 8μm | 72h |
| PVF | 8μm+20μm | 1000-2000h |
| Military Green Zinc | 8μm | 180h |
| GALFAN | 8μm+20μm | 1000-2000h |
| Nylon | 8μm+40μm | 180h |
Application industry
Double-layer coiled pipe is widely used in automobile braking system and fuel transportation pipeline, civil electric box compressor carburetor, heat exchanger, condenser and many other components.
1 ) Advantage:
a. Good corrosion resistance;
b. Excellent mechanical properties;
c. Low-pressure loss;
d. Comparatively light in weight
e. Sturdy shape, pleasant to the eye when exposed;
f. Impervious to harmful chemical;
g. Cost effective;
h. Recyclable & have resale value.
2 ) Plating: Cooper coated
3 ) Certifiction: ISO9001
4 ) Package: cut-to-length /in coils, as your requirement,beveled ends.
5 ) Standard: Country YB/T4164--2007
6 ) Raw materials: low carbon steel tube/ BHG2
Product Tags:
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Double Layer Coiled ASTM A254 Automotive Steel Tubes Images
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