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S45c Medium strength steel

Time:2017-01-20 14:12:41

  S45C is a medium strength steel. Suitable for shafts studs, keys etc. Available as rolled or normalised. Supplied as square bar, or round bar or flat. They are excelling in weldability & machinability , and they can be subjected to various heat treatments. Based on JIS G 4051-2009

  S45C Mechanical Properties

  Density (kg/m3) 7700-8030

  Young’s Modulus (GPa) 190-210

  Tensile Strength (Mpa) 569 (Standard) 686 (Quenching, Tempering)

  Yield Strength (Mpa) 343 (Standard) 490 (Quenching, Tempering)

  Poisson's ratio 0.27-0.30

  S45C Hardness

  Brinell Hardness (HB) 160-220 (Annealed)

  S45C Chemical Composition

  Carbon (C) 0.42% – 0.48%

  Silicon (Si) 0.15% – 0.35%

  Manganese (Mn) 0.6% – 0.9%

  Phosphorus (P) 0.030% Max

  Sulphur (S) 0.035% Max

  Heat Treatment

  The following temperature ranges are applicable for the respective heat treatment operations.

  Full Annealing 800 - 850°C

  Normalising 840 – 880°C

  Hardening 820 – 860°C

  Quenching medium Water or Oil

  Tempering 550 – 660°C


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