ASTM A213 UNS S30403 / 304L / WNR 1.4306 Stainless Steel Corrugated Finned Tube
ASTM A213 / ASTM A312 / ASTM A269, S30403 Stainless Steel Corrugated Tubes For Heat Exchangers PA Fin Tube
Corrugated tubes in straight form are available in various metals like: copper, cupro-nickel (70:30, 90:10), admiralty brass, aluminum-brass, aluminum, carbon steel (sa-179), stainless steel (ss-304, 304l, 316, 316l, etc.).
Quick Detail
| General Low Fin Tubes Production Capacity | Specifications of Low Fin Tubes ('N' Fins) |
| Finning Facility: 10 finning machines | Tube OD: 12.5 mm~25.4mm |
Features
1. Corrugated tubes are supplied with deburred ends, smooth operation
2. Non-fouling, non blockage, not dirty, smooth operation.
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
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 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 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.
ASTM A1012: Standard Specification for Seamless and Welded Ferritic, Austenitic and Duplex Alloy Steel Condenser and Heat Exchanger Tubes With Integral Fins.
ASTM B891: Standard Specification for Seamless and Welded Titanium and Titanium Alloy Condenser and Heat Exchanger Tubes with Enhanced Surface for Improved Heat Transfer.
ASTM B924: Standard Specification for Seamless and Welded Nickel Alloy Condenser and Heat Exchanger Tubes With.
Applications
1. Widely used for fluid to fluid & gas to gas heat exchanger
2. Air conditioning heat exhcangers and chiller units, Ventilation systems
3. Refrigeration and climate control systems
4. Mechanical engineering
5. Automotive manufacturing
6. Chemicals and pertrochemical and power plant technology
Get in Touch
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