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Heat exchanger tube

Tube & pipe

Our heat exchanger tube is designed for efficient energy transfer, reducing reliance on natural gas and electricity. We offer an extensive materials range, including austenitic stainless steels, duplex stainless steels, nickel alloys, titanium and zirconium, for use in all types of heat exchangers, such as seawater coolers, condensers, evaporators, heaters and reheaters.

Heat exchangers support efficiency

Net Zero is a key goal in combatting global warming, and we believe that heat exchanger (HX) tubing can play a vital role across many industries. By producing HX tubing in a sustainable way that lasts longer, resists corrosion, we can significantly extend the lifecycle of the heat exchanger. For example, our super-austenitic Sanicro® 35 offers a smart alternative to costly nickel alloys. Depending on your needs, other Sanicro or duplex grades are also available.

Key HX challenges

Heat exchanger tubes face several challenges that impact their performance and longevity.

  • Fouling: Accumulation of debris reduces heat transfer efficiency.
  • Corrosion: Degradation from fluid or environment leads to tube failure.
  • Erosion: High-velocity fluids wear away tube surfaces, causing leaks.
  • Thermal stresses: Expansion and contraction lead to fatigue and cracking.
  • Tube vibration: Fluid-induced vibrations cause wear and rupture.
  • Scaling: Mineral deposits reduce efficiency and increase pressure drop.
  • Pressure drops: High drops reduce system efficiency and increase energy costs.
  • Cracking and leakage: Mechanical stress causes cracks, leading to safety hazards.
  • High temperatures & creep: Prolonged exposure causes tube deformation.

Fully integrated production

To avoid plugging and downtime, our seamless stainless heat exchanger tube and alloys are produced to last and uphold the highest quality standards. The tube is made from 84% recycled steel using fossil-free electricity in a fully integrated production process, with 100% ultrasonic testing.

Wide range of dimensions

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 innovative and sustainable alternative to expensive nickel alloys

Lower lifecycle cost with Alleima solutions, two suitable grades

Express program for tube replacements

Got an urgent tube replacement need due to breakdowns, unplanned outages, or unforeseen events? Ask about our Express Program where our experts work closely with you to fast-track deliveries and move your business forward.

a close up of a metal pipe

Sanicro® 35 (UNS N08935)

スーパーオーステナイト系ステンレス鋼とニッケル合金の優れた特徴を兼ね備えた合金です。汎用二相系合金またはオーステナイト系グレードの特性が不十分な場合に、高ニッケル合金に代わるコスト効率の高い選択肢となります。

a group of shiny metal tubes

SAF™ 3006 (UNS S83071)

酸性環境向けの新しいイノベーション。これは、酸性および腐食性環境での耐腐食性を高めるために設計された高合金二相系(オーステナイト-フェライト)ステンレス鋼です。化学および石油化学産業の熱交換器向けに特別に設計されています。

詳細情報

several metal pipes on a white surface

材料

熱交換器チューブの標準材料

men wearing white helmets and gloves working on a machine

機械的特性

詳細な仕様とデータシート

a close up of a metal object

U字型チューブ

Alleimaステンレス熱交換器チューブはU字型チューブとしても提供可能です。

a large tube in a factory

用途

当社の熱交換器チューブの代表的な用途

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Technical 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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