S45C is one of the high quality carbon structural steel under the standard of JIS G4501.
JIS G4051 Carbon steel for Machine Structural Use.
S45C steel equivalent material
GB 45#(Chinese standard), DIN 1.0503(Germany standard),NF C45(French standard),
UNI C45(Italy standard),NBN C45-1(Belgium standard), Ss1650(Sweden standard),
UNE F.114(Spanish standard), AISI/SAE 1045(America standard), ISO C45E4(International standard).
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