Steel wire with high drawability having a carbon level by mass of between 0.05% inclusive and 0.4% exclusive
AssigneeCompagnie Generale Des Etablissements Michelin
InventorArnaud Verleene
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Abstract
The steel wire of diameter d expressed in mm has a completely ferritic, pearlitic or ferritic-pearlitic microstructure and a weight content of carbon C such that 0.05%≤C<0.4%, a weight content of chromium Cr such that Cr<12% and a maximum tensile strength R, expressed in MPa, such that R≥175+930.C−600.In(d) and R≥1500 MPa.
Claims14
A steel wire of diameter d expressed in mm and having a completely ferritic, pearlitic or ferritic-pearlitic microstructure, wherein the wire has a weight content of carbon C such that 0.05%≤C<0.4%, a weight content of chromium Cr such that Cr<12% and a maximum tensile strength R, expressed in MPa and satisfying the following two conditions:
- i) R≥175+930*C−600*ln(d), and
- ii) R≥1500 MPa.
Dependencies are inferred from the claim text.