Heating Element Sheath Material Use of Alloys

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.

Straight Length Element

EN AISI DIN General Use Additional information  Additional information  Additional information 
EN 1.4301 AISI 304 W. 1.4301 In water or humid environment max. 450°C. In air max. 700°C. Scaling temperature: 850°C. For food industry.
EN 1.4162 AISI S32101 W. 1.4162 This alloy can replace the AISI 304 in some applications. Stainless steel with low nickel content. >
EN 1.4307 AISI 304L W 1.4307 Like EN 1.4301 for humid-corrosive environments. Tube used for washing machine heating elements.
EN 1.4541 AISI 321 W. 1.4541 In water or humid environment max. 550°C. In air max. 750°C. Scaling temperature: 850°C. Tube for washing and cooking heating elements.
EN 1.4404 AISI 316L W. 1.4404 Equivalent 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 1.4521 AISI 444 W. 1.4521 This alloy can replace the AISI 316L in some applications. Ferritic stainless steel with good mechanical features and high resistance to corrosion.
EN 1.4435 AISI 316SL W. 1.4435 Equivalent 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 1.4571 AISI 316Ti W. 1.4571 Equivalent to AISI 321 – EN 1.4541, with the addition of molybdenum besides titanium. For temperatures of 500°C also in discontinuous service.
EN 1.4845 AISI 310S W. 1.4845 In water or humid environment or mixed air/water, with max. temperature of 550°C. Typical colouring with annealing: dark green.
EN 1.4828 AISI 309 W. 1.4828 In air for temperatures up to 950°C. Typical use: heating elements for ventilated ovens and grills.
EN 1.4847 Alloy 840 W. 1.4847 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 1.4876 Alloy 800 W. 1.4876 In water and air with max. temperatures of 1050°C. Annealing temperature of heating element 1100°C.  Also Referred to as Incoloy or Superloy
EN 2.4858 Alloy 825 W. 2.4858 In air for max. temperatures up to 1100°C. In water or highly corrosive environments.
EN 2.4851 Alloy 601 W. 2.4851 Refractory alloy with good resistance to corrosion, particu­larly of sulphur at high temperatures. In air up to 1180°C.
EN 2.4816 Alloy 600 W. 2.4816 Finer 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.

Straight Length Element

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