Heat exchanger tube

Tube, pipe, fittings and flanges

Heat exchanger tube in an extensive range of austenitic stainless steels, duplex stainless steels, nickel alloys, titanium and zirconium, suitable for all types of heat exchangers, such as seawater coolers, condensers, evaporators, heaters and reheaters.

Heat exchanger tube

Our heat exchanger tube portfolio includes imperial and metric sizes, from outside diameter 12 mm up to 40 mm (0.472 to 1.575 in.). Special sizes can be made to order. Alleima heat exchanger tubes are supplied in straight lengths up to 30 meters, or as U-bent tubes.

Lower life-cycle cost with duplex stainless steels

Our portfolio of duplex stainless steels is the widest on the market. Duplex stainless steel heat exchanger tubes perform exceptionally well in a variety of environments and media common in process industries, resulting in lower life-cycle costs.

An alternative to expensive nickel alloys

One of the latest developments in the Alleima duplex family, SAF™ 2707 HD™ hyper-duplex stainless steel, can serve as a very competitive alternative to expensive nickel alloys and high-alloy austenitic stainless steels in the most demanding applications.

The tables show our standard materials for heat exchanger tube. Other grades can be offered on request.

Duplex stainless steels

Alleima grade UNS ASTM EN no. W.-nr AFNOR
Alleima® 3RE60 S31500 - 1.4424 1.4417 Z2CND18-05-03
SAF™ 2205 S31803/S32205 - 1.4462 - Z2CND22-05-03
SAF™ 2304 S32304 - 1.4362 1.4362 Z2NC23-04AZ
SAF™ 2707 HD S32707 - - - -
SAF™ 2507 S32750 - 1.4410 - -

High-alloy austenitic stainless steels and nickel alloys

Alleima grade UNS ASTM EN steel no. W.-nr AFNOR
Sanicro® 70 N06600 Alloy 600 - 2.4816 -
Sanicro® 69 N06690 Alloy 690 2.4642*** 2.4642 NC30FE(RCCM)
Sanicro® 625 N06625 Alloy 625 - - -
Sanicro® 41 N08825 Alloy 825 - 2.4858 -
Sanicro® 35 N08935 - - - -
Sanicro® 30 N08800 - 1.4558 1.4558 -
Sanicro® 28 N08028 - 1.4563 1.4563 -
Alleima® 2RK65 N08904 - 1.4539 1.4539 Z1NCDU25-20-4
254 SMO* S31254 - 1.4547 (1.4529)** -

* 254 SMO is a trademark of Outokumpu OY.
** In brackets, nearest equivalent steel grade
*** Not applicable for tube and pipe. Only for information.

Austenitic stainless steels

Alleima grade UNS ASTM EN steel no. W.-nr AFNOR
Alleima® 3R12 S30403/S30400 304L/304 1.4306/1.4301 1.4306/1.4301 Z2CN18-10
Alleima® 3R60 S31603/S31600 316L/316 1.4435/1.4436 1.4435/1.4436 Z2CND17-13
Alleima® 5R75 S31635 316Ti 1.4571 1.4571 (Z6CNDT17-12)**
Alleima® 6R35 S32100/S32109 321/321H 1.4541/1.4940 1.4541/1.4878 (Z6CNT18-10)**

Titanium and Zirconium

Type of material Grade(s)
Titanium Pure titanium and titanium grades:
1, 2, 3, 4, 7, 9, 11, 12, 16, 17, 26 and 28
Zirconium Zirconium 702 (ZR-702)

Product standards

American standards European standards
Alleima grade ASTM ASME EN VD TÜV
SAF™ 2707 HD A-789 SA-789 - -
SAF™ 2507 A-789 SA-789 10216-5 VD TÜV Blatt 508
SAF™ 2205 A-789 SA-789 10216-5 VD TÜV Blatt 418
SAF™ 2304 A-789 SA-789 10216-5 -
Alleima® 3RE60 A-789 SA-789 - -
Sanicro® 70 B-163 B-167 SB-163 SB-167 - VD TÜV Blatt 305
Sanicro® 69 B-163 B-167 SB-163 SB-167 - -
Sanicro® 41 B-163 B-423 SB-163 SB-423 - -
Sanicro® 35 B-163 SB-163 -

TUV 1326W043219

Sanicro® 30 B-163 B-407  SB-163 SB-407  10216-5 -
Sanicro® 28 B-668 SB-668 10216-5 VD TÜV Blatt 483
Alleima® 2RK65 A-269 SB-677 10216-5 VD TÜV Blatt 421
254 SMO* A-213 A-269 SA-213 SA-269 10216-5 -
Alleima® 5R75 A-213 SA-213 10216-5 -
Alleima® 3R60 A-213 A-269 SA-213 10216-5 -
Alleima® 3R65 A-213 A-269 SA-213 10216-5 -
Alleima® 6R35 A-213 A-269 SA-213 10216-5 -
Alleima® 3R12 A-213 A-269 SA-213 10216-5 -

Featured articles

News release 20 November, 2023

Express program for heat exchanger tubes

Eight weeks from order to placement. That is how fast customers in Europe Middle East, and Africa (EMEA) can receive their heat exchanger tubes, as the result of a new express program.

News release 30 August, 2023
Mayr & Wilhelm, a German fabricator specialized on shell-and-tube heat exchanger, has chosen Alleima for duplex SAF™ 2205 stainless steel heat exchanger tubing.

Mayr & Wilhelm chooses Alleima for heat exchanger tubes

Mayr & Wilhelm , a German fabricator specialized on shell-and-tube heat exchanger, has chosen Alleima for duplex SAF™ 2205 stainless steel heat exchanger tubing.

Technical article 26 January, 2023

Choosing the right material can advance the life of your heat exchanger

Heat exchangers are crucial in process industries. These include refineries, petrochemical, and chemical plants. They heat and cool process streams. They conserve energy in the plant and minimize additional heat from external sources by burning gas or oil or using electricity. The most common industrial heat exchanger is the shell-and-tube type.

Technical article 21 September, 2022

Sanicro® 28 extends life of heat exchanger cooler by five times

Our customer’s peroxide mill in Brazil had regular maintenance failures in a heat exchanger cooling system due to corrosion and heat issues. We suggested Sanicro ®  28 . It not only solved the problems but also significantly increased the cooler’s maintenance cycle.

More information

Corrosion knowledge

Corrosion is the degradation of a material in a corrosive environment, and is commonly divided into two groups; wet corrosion and high-temperature corrosion.

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