Seamless Low Finned Tube Copper Nickel ASTM B111 C70600
Seamless low finned tube is avallable for a wider range of alloys than traditional low-fin tubing which is restricted to softmetals. Such as Titanium, Nickel Alloy, Duplex Steel.
- Material: Copper, Stainless Steel, Duplex, Titanium, Nickel Alloys, Copper Nickel (90/10,70/30)
- Size Range: OD 1/2″ to OD 1″
Type: Smooth Bore or Internal Rib
FPI: 19,26,28,36 etc as per your customer’ request
Test: Air test at 250Psi(1.72 Mpa),Hydro Test
Seamless low finned tube is avallable for a wider range of alloys than traditional low-fin tubing which is restricted to softmetals. Such as Titanium, Nickel Alloy, Duplex Steel.
The integral low fin tubes are from extruded seamless tubes on outside surface only or outside and inside surface for double enhancedperformance.
Datang low fin tubes are available for a wider range of alloys Such as Copper ,Titanium, Nickel Alloy, Duplex Steel.
ASTM A-1012 Seamless and Welded Feritic, Austenitic and Duplex Alloy Steel Condenser And Heat Exchanger Tubes with Integral Fins.
AsTM B-891 Seamless and welded Titanium and Titanium Alloy Condenser and Heat Exchanger Tubes With Integral Fins
ASTM B-924 Seamless and Welded Nickel Alloy Condenser and Heat Exchanger Tubes With Integral Fins
ASTM B-359/ ASME SB-359 Copper and Copper Alloy Seamless Condenser and Heat Exchanger Tubes With Integral Fins
C70600 equals to BFe10-1-1 ; C71500 equals to BFe30-1-1
ASTM B111: Copper and Copper-Alloy Seamless Condenser Tubes and Ferrule Stock
Delivery of Low Fin Tubes
We can produce the integral low fin tubes with un-finned section gaps( 5mm Min.) in the middle of core tube OR bent with designed Bend Radius.
Quality Test:
The integral low fin tube quality is assured by hydrostatic or pneumatic tests, eddy current tests & MARCO tests in order to verify design specifications.
Delivery Condition:
Tube ends are square cut, free burrs, internally dried and air blown clean, externally coated with varnish.
The desiccants are put into the each package for continental transportation.
Quick Detail:
| Parameter | Value |
|---|---|
| Daily Production Capacity | Up to 3000 meters |
| Number of Finning Machines | 10 |
| Tube Outer Diameter (OD) | 12.7 mm ~ 25.4 mm |
| Maximum Tube Length | 18 meters |
| Fin Height | 1.2 mm ~ 2.77 mm |
| Fin Thickness | Approximately 0.3 mm |
| Fin Pitch (FPI) | 30, 28, 26, 36, 43 |
1.Inquiry Seamless Low Finned Tube
– Tube length: 1850mm
– Outer diameter: 12.7mm
– Inner diameter: 8.7mm
– Material: Cu-Ni/90-10 (standard: ASTM B359 C70600-O61)
– Fins are created along the entire length of the tube:
+ Fin thickness: 0.2mm
+ Fin height: 1.0 ~ 1.1mm
+ Fin pitch: 25 fins/inch
– Q.ty: 1456pc
A:Yeah, we are.Cangzhou Datang Steel Pipe Co., Ltd is leading finned tube and heat exchanger and custom design heat exchanger manufacturer since the year of 2007 with the “famous brand”-Datang manufacture in China.
A: Seamless low finned tube production line 6.
A: We can provide seamless low finned tube samples for free.
A: Seamless low finned tube can be customized, we can make the new thermoforming or extruding mode based on your drawings and we can sign a confidentiality agreement about your patented product, pls contact us for any further information.
A: Always a pre-production sample,before mass production;always final inspection before shipment.
Inspection & Guarantee Certificate is supplied with shipment, and the Third Party Inspection is available.
A: Datang provides factory inspection videos, and production progress will be sent to you via pictures and videos, allowing you to feel as if you are on-site.
A: Email: info@datangpipe.com
Whatsapp & Wechat: +86 15690122018
- Datasheet
- Drawing
- Certificates
Material Grade:
| Material Designation | Corresponding Material Symbol | ||||
| ASTM B111 | BS2871 | JIS H3300 | DIN1785 | GB/T 8890 | |
| Copper Nickel | C70600 | CN102 | C7060 | CuNi10Fe1Mn | BFe10-1-1 |
| C71500 | CN107 | C7150 | CuNi30Mn1Fe | BFe30-1-1 | |
| C71640 | CN108 | C7164 | CuNi30Fe2Mn2 | BFe30-2-2 | |
| C70400 | — | — | — | BFe5-1.5-0.5 | |
| — | — | — | — | B7 | |
| Aluminium Brass | C68700 | CZ110 | C6870 | CuZn20AL2 | HAL77-2 |
| Admiralty Brass | C44300 | CZ111 | C4430 | CuZn28Sn1 | HSn70-1 |
| Boric Brass | — | — | — | — | Hsn70-1B |
| — | — | — | — | Hsn70-1 AB | |
| Arsenical Brass | — | CZ126 | — | — | H68A |
| Brass Tube | C28000/C27200 | CZ108 | C2800/C2700 | CuZn36/CuZn37 | H65/H63 |
Seamless Low Finned Tube Drawing



Seamless Low Finned Tube Benefits
Enlarged the external surface area of bare tubes by 2.5 to 3 times & Improved Heat transfer.
Reduced capital cost for the new facility.
Reduced refitting cost for the existing facility.
Saved space, weight and structure in offshore production or high elevation distillationTransform large shell & tube exchangers into compact heat exchangers.
Seamless Low Finned Tube Manufacturing Machine
Tools: Symmetrical structure, three sets of blades with the same parameters are interchangeable.
Tool Shaft: Double-row cylindrical roller bearings, long service life.
Cooling: The cooling box is separated from the rolling mill, resulting in more stable operation.


Seamless Low Finned Tube Dimensional Measurement
For seamless low-finned tubes, dimensional measurements should focus on the outer diameter, length, fin height, thickness, and fin pitch (FPI). The outer diameter is measured with calipers, avoiding the finned area; the length is measured in sections using a tape measure; the fin height is determined by taking the average value using a height gauge; the thickness is measured with a micrometer; and the FPI is determined by counting the number of fins per inch.
Calibrated tools must be used during measurement to ensure data accuracy.
Seamless Low Fin Tube Packaging
Payment Terms:T/T, LC
Delivery: 15-30 days after payment
Marking: Standard + Steel Grade + Size + Heat No + Lot No
Package: Iron frame packing boxes and the desiccants are put into each package for continental transportation as well. or as required


















