 
            | MOQ: | N/A | 
| Price: | N/A | 
| Standard Packaging: | (1) All integral low fin tubes are packed in hexagonal bundles. (2) Steel frame case sealed by plywoods; 3: Solid fumigated seaworthy wooden box. | 
| Delivery Period: | Ex-work with 5 weeks after order. | 
| Payment Method: | T/T, L/C | 
| Supply Capacity: | Daily capacity up to 5,000 Meters | 
TP304 / TP304L , TP316 / TP316L , Austenitic Stainless Steel Corrugated Low Fin Tube
 
Quick Detail:
| General Low Fin Tubes Production Capacity | Specifications of Low Fin Tubes('N' Fins) | 
| Finning Facility: 10 finning machines; Daily capacity up to 3000 meters; | Tube OD: 12.7 mm~25.4mm Tube Length: 18 meters max. Fin Height: 1.2 mm ~2.77mm Fin Thickness: appr. 0.3mm Fin Pitch: 30 FPI /28 FPI/ 26 FPI/ 36 FPI /43 FPI | 
 
Description: 
Manufacturing process: The fins are rolled out of outer wall of the plain tubes by a pass roller. Tubes and fins are in same piece tube. We call it “N” fin type.
 
Tube Materials:
ASTM A213 / A213M :Seamless Ferritic & Austenitic Alloy-Steel Boiler, Superheater, and Heat-Exchanger Tubes
ASTM A312/ A312M : Seamless, Welded, and Heavily Cold Worked Austenitic Stainless Steel Pipes
ASTM A269/ A269M :Seamless and Welded Austenitic Stainless Steel Tubing for General Service
 
Delivery Range of Low Fin Tubes
We can provide 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.
 Acceptance Ceritia: 
 WOLVERINE  /  HPT  / GEWA-K & GEWA-KS 
 
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.
 
 
Applications: 
The Integral Low Finned Tubes find the preference in the following industrial sectors:
 
Specifications: 
Tube and fins consist of same tube and materials as carbon steel , low-alloy steels , stainless steel , brass , copper , cooper-nickel alloys , aluminum bronze , nickel alloys , titanium etc...
 
| 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 | 16.6 | 13 | 2 | 17.7 | 
| 19×2 | 2 | 18.8 | 16.4 | 13 | 1.7 | 17.5 | 
| 25×2.5 | 0.8 | 24.8 | 23 | 18.8 | 2.8 | 23.9 | 
| 25×2.5 | 1 | 24.8 | 22.6 | 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  | ||||||
| Please email us for more information. | ||||||
 
 
 
 
          | MOQ: | N/A | 
| Price: | N/A | 
| Standard Packaging: | (1) All integral low fin tubes are packed in hexagonal bundles. (2) Steel frame case sealed by plywoods; 3: Solid fumigated seaworthy wooden box. | 
| Delivery Period: | Ex-work with 5 weeks after order. | 
| Payment Method: | T/T, L/C | 
| Supply Capacity: | Daily capacity up to 5,000 Meters | 
TP304 / TP304L , TP316 / TP316L , Austenitic Stainless Steel Corrugated Low Fin Tube
 
Quick Detail:
| General Low Fin Tubes Production Capacity | Specifications of Low Fin Tubes('N' Fins) | 
| Finning Facility: 10 finning machines; Daily capacity up to 3000 meters; | Tube OD: 12.7 mm~25.4mm Tube Length: 18 meters max. Fin Height: 1.2 mm ~2.77mm Fin Thickness: appr. 0.3mm Fin Pitch: 30 FPI /28 FPI/ 26 FPI/ 36 FPI /43 FPI | 
 
Description: 
Manufacturing process: The fins are rolled out of outer wall of the plain tubes by a pass roller. Tubes and fins are in same piece tube. We call it “N” fin type.
 
Tube Materials:
ASTM A213 / A213M :Seamless Ferritic & Austenitic Alloy-Steel Boiler, Superheater, and Heat-Exchanger Tubes
ASTM A312/ A312M : Seamless, Welded, and Heavily Cold Worked Austenitic Stainless Steel Pipes
ASTM A269/ A269M :Seamless and Welded Austenitic Stainless Steel Tubing for General Service
 
Delivery Range of Low Fin Tubes
We can provide 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.
 Acceptance Ceritia: 
 WOLVERINE  /  HPT  / GEWA-K & GEWA-KS 
 
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.
 
 
Applications: 
The Integral Low Finned Tubes find the preference in the following industrial sectors:
 
Specifications: 
Tube and fins consist of same tube and materials as carbon steel , low-alloy steels , stainless steel , brass , copper , cooper-nickel alloys , aluminum bronze , nickel alloys , titanium etc...
 
| 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 | 16.6 | 13 | 2 | 17.7 | 
| 19×2 | 2 | 18.8 | 16.4 | 13 | 1.7 | 17.5 | 
| 25×2.5 | 0.8 | 24.8 | 23 | 18.8 | 2.8 | 23.9 | 
| 25×2.5 | 1 | 24.8 | 22.6 | 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  | ||||||
| Please email us for more information. | ||||||
 
 
 