Manganese Steel JIS G 4106

JIS G 4106 : Manganese Steel and Manganese Chromium Steels for Machine Structural Use

Jenis
Material
Chemical Composition %
C Si Mn P Max. S Max. Cr
SMn 420 0.17∼0.23 0.15∼0.35 1.20∼1.50 0.030 0.030
SMn 433 0.30∼0.36 0.15∼0.35 1.20∼1.50 0.030 0.030
SMn 438 0.35∼0.41 0.15∼0.35 1.35∼1.65 0.030 0.030
SMn 443 0.40∼0.46 0.15∼0.35 1.35∼1.65 0.030 0.030
SMn C 420 0.17∼0.23 0.15∼0.35 1.20∼1.50 0.030 0.030 0.35∼0.70
SMn C 443 0.40∼0.46 0.15∼0.35 1.35∼1.60 0.030 0.030 0.35∼0.70

Note : As impurities, Ni 0.25 Cu 0.30% shall not be exceeded for each class.
Neither Cr 0.35% shall not be exceeded for SMn 433, SMn 438, SMn 443 and SMn 420.