After cutting and forming,these JIS G4051-1 S10C,S20C,S40C,S45C,S50C,S55C material machinery structural steel goes through heat treatment process to achieve the required mechanical properties.

JIS G3103 SB410, SB450, SB480, SB450M, S480M application is to fabricate boilers. The buyer choose different size and steel grade based on the different type boilers.

JIS G4053 is the ally steel in Japanese standard. The material includes: Mn alloy steel, Mn-Cr alloy steel, Cr ally steel, Cr-Mo ally steel ,Ni-Cr ally steel, Ni-Cr-Mo ally steel.Mn alloy steel grads are : SMn420, SMn433, SMn438, SMn443.