Heat exchanger tubes

Stainless steel heat exchanger tubes

Stainless steel heat exchanger tubes / heat exchanger piping:

Ruimai manufactures Heat exchanger tubes in an extensive range of austenitic stainless steels, suitable for all types of heat exchangers, such as seawater coolers, condensers, heaters, evaporators, etc.

Stainless steel Heat exchanger tubes

Ruimai heat exchanger tubes are supplied in straight lengths up to 25 meters, or as Stainless steel U-bent tubes.

1. Standards of heat exchanger tubes 

ASTM A213/213M -  Specification for seamless ferritic and austenitic alloy-steel boiler, superheater, and heat exchanger tubes;
EN 10216-5 - Seamless Steel Tubes for Pressure Purposes - Technical Delivery Conditions - Part 5 Stainless Steel Tubes

2. Steel grade

Ruimai manufacture heat exchanger tubes / heat exchanger piping in a wide range of stainless steel, duplex / super duplex steel grades, and Titanium alloys in ASTM norm or EN/DIN stardards.

ASTM grades: 316 /316L, 304/304L, 321/321H, 316Ti, 347 / 347H, S31803, S32750,S32760, 2205, 904 / 904L. 
EN /DIN grades: 1.4301/1.4307, 1.4401/1.4404, 1.4541/1.4878, 1.4571, 1.4462, 1.4410, 1.4539.

3. Size range

Outside diameter of heat exchanger tubes are normally from 6 mm to 88.9mm

4. Application of heat exchanger tubes

1) Stainless steel heat exchanger tubes in straight lengths for heat exchangers in various industrial areas

straight lengths Heat exchanger tubes

2) Stainless steel heat exchanger tubes in U bent types for heat exchangers in various industrial areas

 Heat exchanger tubes in U-bent tubes