JIS G 3445 Grade STKM 14A Specification. JIS G 3445 Grade STKM 14A Carbon Steel Seamless Tubes are most commonly used for general purpose applications worldwide.JIS G 3445 Grade STKM 14A Tubes are ductile and strong Tubes with long wearing properties .These Tubes are manufactured as per JIS Specification and commercially referred as carbon steel Tubes.
JIS G3461 Grade STB 340 Specification Covers Carbon Steel Tubes for Boiler and Heat Mechanical properties of This steel grades can be varied greatly by heat treating. Through a controlled cycle of heating and cooling, certain desired properties are obtained by producing predictable changes in the microstructure of the steel.
(1) High quality JIS Standard G3461 STB30 carbon steel seamless pipe with reasonable price. (2) Wide excellent experiences with after-sale service. (3) Every process g3461 st340 carbon steel(plate) Why do steel pipes need heat treatment?-Boiler Tubes,Heat g3461 st340 carbon steel(steel) For carbon steel pipes and alloy steel pipes with carbon content more than 0.5%, in order to reduce their hardness and be easy to cut, annealing treatment is often used; for carbon steel pipes and alloy steel pipes with carbon content less than 0.5%, normalizing treatment is used to avoid sticking the cutter when cutting with low hardness.
JIS G3461 specifies the carbon steel tubes used in chemical and petroleum industry, such as water tubes, smoke tubes, superheater tubes, air preheater tubes, etc. Manufacture tubes shall be made by the seamless process and shall be