Grade SCr445
Corresponding Standard JIS G 4053-2016
Low-Alloyed Steels for Machine Structural Use
Brand/Supplier
Japan -> NSSC
Classification Alloy Steel
SCr445 Chemical Element Composition Content (%)
Component C Si Mn P S Cr Ni Cu
Minimum Value 0.43 0.15 0.6 - - 0.9 - -
Maximum Value 0.48 0.35 0.9 0.03 0.03 1.2 0.25 0.3
New and Old Grade Replacement List
Corresponding Standard Grade
JIS G 4104-1979
Grade
Old Grade
JIS G 4053-2003
Grade
JIS G 4053-2016
Grade
1 Approximate Comparison Table Structural Alloy Steel
China Taiwan, China Japan South Korea United States France European Standard Russia
GB ISC CNS JIS KS ASTM/AISI UNS NF EN/NF EN GOST
45Cr A20452 SCr445 SCr445 SCr445 5145 G51450 45C4 41Cr4 45Х
2 Approximate Comparison Table Structural Alloy Steel
China Japan United States France Russia
GB ISC JIS ASTM/AISI UNS NF EN/NF GOST
50Cr A20502 SCr445 5150 G51500 50C4 50Х
3 Approximate Comparison Table Steel for Cold Heading and Cold Extrusion
China Japan United States
GB JIS ASTM
ML45Cr SCr445 5145
SCr445 Corresponding Standards(Same grade name, different standards)

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