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SUS309S high alloy stainless steel for heat exchanger

SUS309S high alloy stainless steel for heat exchanger

Posted:2021-06-07 14:04:37

SUS309S steel is a high alloy stainless steel, equivalent to 0Cr23Ni13, American standard 309S (American AISI, ASTM)

SUS309S steel specification


Grade

 

Advantages

High alloy stainless steel, with excellent high temperature acid resistance and high temperature strength

Application

Exhaust equipment, heat treatment furnace, heat exchanger, etc.

Characteristics of SUS309S steel
Corrosion resistance and heat resistance are better than 0Cr19Ni9. 309s is a variant of 309 stainless steel with lower carbon content and is used where welding is required. The lower carbon content minimizes the precipitation of carbides in the heat-affected zone near the weld, and the precipitation of carbides may cause stainless steel to produce intergranular corrosion (welding erosion) in certain environments.

Features: It can withstand repeated heating below 980 ℃, and has high high-temperature strength, oxidation resistance, and carburization resistance.
Application: SUS309S high alloy stainless steel is widely used in boilers, energy (nuclear power, thermal power), industrial furnaces, heating furnaces, chemical, petrochemical and other fields.

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