Heating Element Sheath Material Use of Alloys

Our Guide


Last Update 3 years ago

Tubular Sheathed Heating Elements are manufactured in a variety of materials and should be selected based on application. The most commonly produced, and versatile, heating element sheath material is Alloy 800, commonly referred to as Incaloy.

ENAISIDINGeneral UseAdditional Information
EN 1.4301AISI 304W. 1.4301In water or humid environment max. 450°C. In air max. 700°C.Scaling temperature: 850°C. For food industry.
EN 1.4162AISI S32101W. 1.4162This alloy can replace the AISI 304 in some applications. Stainless steel with low nickel content.
EN 1.4307AISI 304LW. 1.4307Like EN 1.4301 for humid-corrosive environments. Tube used for washing machine heating elements.
EN 1.4541AISI 321W. 1.4541In water or humid environment max. 550°C.In air max. 750°C. Scaling temperature: 850°C. Tube for washing and cooking heating elements.
EN 1.4404AISI 316LW. 1.4404Equivalent to EN 1.4306, with addition of molybdenum. Besides improving resistance to corrosion and under tension, there is a better response to general corrosion. In water or corrosive humid environment max. 450°C. For food industry.
EN 1.4521AISI 444W. 1.4521This alloy can replace the AISI 316L in some applications. Ferritic stainless steel with good mechanical features and high resistance to corrosion.
EN 1.4435AISI 316SLW.1.4435Equivalent to EN 1.4404, with the difference that the higher content of molybdenum and the content of nitrogen ensure elevated mechanical features and resistance to corrosion.In water or corrosive humid environment max. 500°C.
EN 1.4571AISI 316TiW. 1.4571Equivalent to AISI 321 – EN 1.4541, with the addition of molybdenum besides titanium.For temperatures of 500°C also in discontinuous service.
EN 1.4845AISI 310SW. 1.4845In water or humid environment or mixed air/water, with max. temperature of 550°C.Typical colouring with annealing: dark green.
EN 1.4828AISI 309W. 1.4828In air for temperatures up to 950°C.Typical use: heating elements for ventilated ovens and grills.
EN 1.4847Alloy 840W. 1.4847In air for max. temperatures up to 950°C.In air for max. temperatures up to 950°C.In ali applications for which the characteristics of AISI 309 ­EN 1.4828 are not satisfactory.
EN 1.4876Alloy 800W. 1.4876In water and air with max. temperatures of 1050°C. Annealing temperature of heating element 1100°C.Also Referred to as Incoloy or Superloy
EN 2.4858Alloy 825W. 2.4858In air for max. temperatures up to 1100°C. In water or highly corrosive environments.
EN 2.4851Alloy 601W. 2.4851Refractory alloy with good resistance to corrosion, particu­larly of sulphur at high temperatures. In air up to 1180°C.
EN 2.4816Alloy 600W. 2.4816Finer refractory alloy with excellent resistance to corrosion. In air up lo 1250°C.

The above table is provided for general guidance only. The suitability and completeness through which technical and/or informative characteristics have been supplied in this schedule have to be analysed carefully by the customer. The customer must carry out all in-depth controls and all necessary tests in order to check the suitability of our product in the final application to which it is to be installed.

Contact our Technical Sales Department for assistance in selecting the most suitable material for your application.

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