What percent carbon is S45C?
0.45%
composition of carbon steel S45C is 0.45% carbon element, 0.15% silicon element and small amount of manganese, phosphorus and sulfur 17 . This composition is illustrated in Table 1.
Which steel is harder 1045 or 4140?
4140 alloy steel is generally stronger and harder than carbon steel. It provides high impact resistance as well as high fatigue and torsional strength. 1045 Carbon Steel is stronger than low carbon steel but is easy to machine. 4130 Alloy Steel offers better weldability and has a slightly lower carbon content.
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