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[China]
Trade Verify
Address: Suite 1004, Hongan Plaza, #258 Die Yuan Road, Yinzhou District, Ningbo City, China
Contact name:Richard SHEN
TORICH INTERNATIONAL LIMITED |
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Verified Suppliers
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Material | C10200, C11000 Etc |
Size | Fin Thickness: 0.1-2mm; Tube OD: 8-55mm; Length: max 12m |
Fin Pitch | Customize |
Surface | Copper Coated |
End protector | Plain End / Beveled End |
Application | For Heat Exchanger |
Test | Tension Test, Flaring Test, Flange Test, Reverse Test, Hardness
Test, Hydrostatic or Nondestructive Electric Test |
Quick Detail:
Low Finned Tubes add short fin in the tube wall that greatly
increase the surface area over smooth tube. The fins are formed
into the tube wall so the outside diameter of the fins are not
larger than the pre-finned smooth tube.Energy Transfer is solely
focused on producing the largest variety and most complete
solutions for finned tubing. Low finned tubes can be provided with
a smooth or rifled tube inside surface.
Plain tube (mm) | Finned section dimensions (mm) | Ratio | De | |||
D×t | Tp | dd | dr | di | η | mm |
19×2 | 0.8 | 18.8 | 17 | 134 | 2.8 | 17.9 |
19×2 | 1 | 18.8 | 16.8 | 13.4 | 2.5 | 17.8 |
19×2 | 1.25 | 18.8 | 16.6 | 13 | 2.2 | 17.8 |
19×2 | 1.5 | 18.8 | 16.4 | 13 | 2 | 17.7 |
19×2 | 2 | 18.8 | 23 | 13 | 1.7 | 17.5 |
25×2.5 | 0.8 | 24.8 | 22.6 | 18.8 | 2.8 | 23.9 |
25×2.5 | 1 | 24.8 | 22.3 | 18.8 | 2.75 | 23.7 |
25×2.5 | 1.25 | 24.8 | 22.3 | 18 | 2.5 | 23.6 |
25×2.5 | 1.5 | 24.8 | 22.3 | 18 | 2.2 | 23.5 |
25×2.5 | 2 | 24.8 | 22 | 18 | 1.8 | 23.4 |
25×2.5 | 2.5 | 24.8 | 22 | 18 | 1.6 | 23.3 |
D------Outside diameter of plain end section Dof----Diameter of top fins Dr-----Root diameter of finned section Di-----Inside diameter of finned section T------Wall thickness of plain end section Tp-----Fin pitch De----Equivalent diameter of finned tube L------Plain tube end length | ||||||
QUALITY CONTROL:
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
100% of our steel tubes are dimensionally checked
100% of our steel tubes are visually checked to assure they have a
perfect surface condition and no surface defects.
100% eddy current test and ultrosonic test to eliminate
longitudinal and transversal defects.
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 of carbon seamless steel tube ? 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
