1, stainless steel heating tube
The heating tube is made of stainless steel with many different grades, such as stainless steel 304, stainless steel 321 and stainless steel 316L. The normal heating tube is mainly made of stainless steel 304 material, which is also the material that customers choose most at work. It is better than stainless steel 304 material is stainless steel 321. Stainless steel 316L is generally suitable for use in liquids with a pH > 7-14, which is suitable for alkaline liquids, but is generally not recommended for use in strong acids and bases.
2, titanium heating tube
Titanium heating tubes are generally suitable for chrome plating, acid copper, nickel plating, passivation, filling, oxidation tank, chromic acid anodization, phosphating acid tin plating, etc., so the price of titanium heating tubes is relatively high.
3, Teflon heating tube
Teflon heating tube is also called Teflon heating tube, PTFE heating tube, commonly known as PTFE tube. Teflon heating tube is generally suitable for corrosive liquids such as strong acid and alkali. The general process temperature is °105°C. The advantage of Teflon heating tube is that it does not adhere, does not scale, and the surface is evenly dissipated, but the price is also very high. .
4, quartz heating tube
Quartz heating tubes are generally suitable for use in corrosion-resistant liquids, except for hydrofluoric acid.
It is worth noting that, according to the experience in practice, according to the strength of acid and alkali from weak to strong, we generally choose the order of materials is stainless steel 304 heating tube, stainless steel 316 heating tube, Teflon heating tube, titanium heating tube. The price is also higher in turn.