Corrosion Resistance Advantages of Industrial Grade Heating Tubes in Industrial Scenarios

Corrosion damage is the main reason of heating tube failure in chemical, electroplating, water treatment and oil heating sectors. In the industrial working environment, there are typically corrosive forces such as acid-base media, mineral scaling, oil oxidation products, humid corrosive air, which constantly erode the tube wall and internal structure of the heating tubes. Ordinary heating tubes made of low-standard materials and with rough processes have extremely poor corrosion resistance and are difficult to adapt to corrosive industrial scenarios. Industrial-grade heating tubes achieve comprehensive corrosion resistance improvement through four core optimizations.

High quality thickening materials are the initial layer of corrosion resistance barrier. Common heating tubes are made of thin-walled low-purity 304 materials, which have poor corrosion resistance and are prone to corrosion and perforation in scaling water and mild acid-base conditions. Industrial grade heating tubes are made of thickened high-purity stainless steel and alloy materials, with a 0.3-0.5mm thicker tube wall to ensure enough corrosion allowance. Material components of high purity help to prevent intergranular corrosion spots and can successfully resist chemical erosion of water scale, oil filth and weak corrosive media. In case of strong corrosion, industrial grade titanium tubes and PTFE coated tubes can be arranged to fully isolate the corrosive media.

Good surface load design avoids rapid corrosion failure. Excessively high surface load of normal heating tubes promotes local overheating, therefore accelerating chemical reaction and scaling corrosion on the tube surface. In an effort to maintain the uniformity and stability of the temperature of the tube surface, prevent scaling and corrosion caused by local overheating and reduce the corrosion rate of the tube wall in corrosive environments, the industrial grade heating tubes are designed with a conservative load scenario.

High purity magnesium oxide powder and dense process avoid internal corrosion and moisture damage. Loose low-purity magnesium powder in conventional tubes is easily absorbed moisture and deteriorates in humid and corrosive situations, causing internal insulation corrosion and failure. Industrial electric fused high purity magnesium powder and high density compaction method guaranty dense internal structure without moisture absorption, high temperature resistance sealing process separates external corrosive gas and moisture, preventing internal structure corrosion damage.

The overall corrosion resistance advantage makes the industrial-grade heating tubes stable in various extreme corrosion industrial situations, which considerably prolongs the service life and reduces the replacement frequency. It collaborates with the accurate temperature management of the thermocouple, so that it does not aggravate the corrosion due to temperature fluctuation. Customized anti-corrosion industrial heating tube solutions for varied corrosive media and concentrations may totally solve the corrosion failure problem of heating equipment, and give long-term stable operation guaranties for corrosive industrial production scenarios.