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Tubes for heating elements,electric heaters-industrial use

Professional supply of industrial-grade stainless steel tubes, quartz tubes, titanium tubes, copper tubes and other pipe materials for heating elements, electric heaters.

How to choose stainless steel tubes, copper tubes, aluminium tubes, and copper coated iron tubes for heating elements or electric heaters.

ClassificationMaterialUL application temperatureActual guaranteed temperature in designPrice levelCommon processing methodsSurface hardness (Rockwell)Applications
High temperature tubeIncoloy600982°C900°C1High-temperature black coating, high-temperature welding and bright furnace of high-temperature annealing processed with ammonia decomposition77±5Hardly used
Incoloy800(NCF800)927°C850°C2High-temperature black coating, high-temperature welding and bright furnace of high-temperature annealing processed with ammonia decomposition77±5high temperature water heater welded pipes and use under the condition of poor water quality
INcoloy840(NAS H840)927°C850°C3High-temperature black coating, high-temperature welding and bright furnace of high-temperature annealing processed with ammonia decomposition77±5Blackened tubes like microwave ovens, barbecues, air conditioners, drying and other blackened tubes; high-temperature welded tubes of water heaters. It has good property of oxidation resistance and corrosion resistance under high temperature working conditions.
SUS 309S 800°C High-temperature black coating, high-temperature welding and bright furnace of high-temperature annealing processed with ammonia decomposition77±5Blackened tubes like microwave ovens, barbecues etc
SUS 321760°C700°C5High-temperature black coating, high-temperature welding and bright furnace of high-temperature annealing processed with ammonia decomposition77±5Blackened tubes with low load like microwave ovens, barbecues etc
SUS 304760°C650°C6High-temperature black coating, high-temperature welding and bright furnace of high-temperature annealing processed with ammonia decomposition77±5Low load grill heaters
partial annealing or empty tube annealing77±5used for heating elemtens applied in water heater.
SUS 316L760°C700°C4partial annealing or empty tube annealing77±5used for heating elemtens applied in water heater.
Medium or Low temperature tubeCu (nickel-coated)|T2177°C250°C7partial annealing or empty tube annealing(bright furnace with ammonia decomposition)40±10used for heating elemtens applied in water heater.
AL260°C350°C8410°C annealing furnace of mesh belt30±5Hybrid welding or mosaic
Fe(copper coated)Commonly used grade is 10# steel399°C450°C9 77±5Hybrid welding,mosaic or casting
Remark:1. Incoloy is a alloy steel with high percentage of nickel.
2.SUS316L, L stands for low carbon, anti-rust, can be used for water boiling;
3.1---6 represents the price from high to low.
4.Nickel-plated pipes are generally used in water, and AL pipes and Fe pipes are generally connected to the heated elements
5.The nickel-plated layer will discolor or fall off if the temperature exceeds 250°C.

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