Stainless steel cartridge heater

Heating cartridges are mainly used for efficiently heating tools and workpieces. To this effect, the heating cartridges are pushed into a hole in the tool and fixed there. Different diameters and designs make sure that the temperature distribution matches the specifications as well as possible. Electrical heating cartridges can be produced for a variety of diameters. The following list shows the most frequent diameters; in addition, many intermediate dimensions are available. I. Metric dimensions 4 mm 6,5 mm 8 mm 10 mm 12,5 mm 16 mm 20 mm 25 mm 32 mm II. Imperial dimensions 1/4" (6,35 mm) 3/8" (9,53 mm) 1/2" (12,7 mm) 3/4" (19,05 mm) 1" (25,4 mm) Today, electrical heating cartridges are mainly made of corrosion-resistant stainless steel. Due to the past, heating cartridges with a brass sheath can still be found. The disadvantage of brass is a worse resistance against chlorine (e.g. for the processing of PVC); the lower prospensity to corrosion is an advantage over stainless steel. Materials for the heating cartridge sheath: Corrosion-resistant stainless steel Brass Heat-resistant stainless steel If the heating cartridge is not used for heating a workpiece but for liquids, this can be taken into account during the selection of materials in many cases. Available materials of the heating surface: Carbon steel Corrosion-resistant stainless steel Heat-resistant stainless steel Titanium, Hastelloy, special materials Copper-nickel