1.1730 Steel

Steel name: 1.1730
Diagram No.: 2214
Mat.No. (Wr.Nr.) designation: 1.1730
DIN designation: C45U
AISI/SAE designation: 1045
Chemical composition in weight %: 0.45% C, 0.30% Si, 0.70% Mn
Steel group: Unalloyed tool steels
Properties: Unalloyed tool steel with excellent machinability; chilled cast steel, suitable for flame and inductive hardening.
Applications: Unhardenend parts for mould and jig construction or plates and frames for tools and dies.
Reference: Not shown in this demo version.

Heat Treatment
Hardening: 800 to 830 °C quenching in water obtainable hardness: 58 HRC, hardening depth: 3-5 mm, max. 15 mm through-hardening thickness.
Tempering: Slow heating to tempering temperature immediately after hardening, to 180 to 300 °C depending on desired hardness, 1 hour per 20 mm: min. 2 hours.
Diagram note: No data

Tempering Diagram

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