JIS-B4051-S45C

S45C JIS G 4051 (Japan)StandardsJ1sG4051Carbon steels for machine structural useChemical compositionC0.42-0.48s10.15-0.35n08-0.9Pc0.03sc0.035Cr<02相<0.2Cu <0.3Fe RestM+Cc0.35PropertiesBy JIS G 4051AHardness HB:137-170个Yield Strength:>490 MPaTensile Strength:>686 MPaElongation:>17%Hardness HB:201-269Reduction of area:>45%Yield Streng th:>343 MPaTensile Strength:>569 MPaElongation:>20%Hardness HB:167-229Physcal cha图ctefs tcsThermal critical point Ac:720-780 CThermal critical point Ar:680 -750 CWinSteel 7 Prof-Subscription ver.7.2.14.1 lgor Terminal/31.1.202016.04.14Page 1