Which material is suitable for electric heating tubes used to heat water?

Material selection of water heating electric tubes mainly depends on water quality.

304 stainless steel is widely applicable for heating regular tap water, softened water and distilled water.

304 or 316 stainless steel is commonly adopted for drinking water, medical and industrial process water.

316 stainless steel suits hard water with abundant impurities such as sewage, wastewater and groundwater.

For corrosive water, 316 stainless steel tubes with anti-scaling coating are recommended.

Titanium tubes are ideal for seawater heating.

In short, different water qualities require matching heating tube materials.