The 6mm 304 stainless steel closed-end tube works well with NTC temperature sensors, thermistors, and temperature probe assemblies. KAIYAN uses SS304 stainless steel to produce this sensor tube, which offers good corrosion resistance, mechanical strength, and long-term durability.

We form the tube through a one-piece deep drawing process instead of heat sealing or welding the bottom. This process creates the tube body and closed end from one continuous piece of stainless steel. As a result, the tube avoids welded joints and heat-sealed seams at the bottom. The one-piece structure improves consistency, strength, and sealing reliability while reducing the risk of leakage or joint failure during long-term use.

The closed-end design protects the internal NTC sensor from moisture, dust, oil, and mechanical damage. At the same time, the stainless steel wall transfers heat efficiently and helps the sensing element respond quickly to temperature changes.

Manufacturers commonly use this 6mm stainless steel sensor tube in water heaters, refrigerators, air conditioners, HVAC systems, coffee machines, kitchen appliances, battery systems, industrial equipment, and electronic temperature control devices.

KAIYAN controls tube dimensions, surface quality, and forming consistency during production. We can supply different tube lengths, wall thicknesses, and specifications according to application requirements. Our one-piece deep drawn stainless steel tubes provide a reliable solution for NTC probe manufacturers, thermistor sensor suppliers, appliance manufacturers, and other temperature sensing applications.