Marine engineering

20G and 2727SiMn alloy pipe is a pipe material with high strength and corrosion resistance, which is widely used in petroleum, chemical, electric power, aerospace and other industries.

SA335 P22 seamless steel pipe is a grade in the ASTM A335/A335M standard. It is a 2.25Cr-1Mo chromium-molybdenum high-temperature ferritic steel for boilers and superheaters.

ASTM A178 Gr.C heat exchanger tubes are widely used in heat exchangers in petroleum, chemical, electric power, metallurgy and other industries. Especially in some medium-low temperature, medium-low pressure heat exchange situations.

ASTM A213 Stainless Steel 304H Boiler Tubes has general corrosion resistance similar to the low carbon 304/304L.