RMS-1021 CR-300Y-390T-BH Bake Hardenable — Cold Rolled Steel

RMS-1021 CR-300Y-390T-BH is a bake hardenable grade cold rolled steel conforming to the rivian material specifications. At 300 MPa minimum yield strength, this is intermediate-strength steel for structural cross-members, seat mounting brackets, and suspension component interfaces, with moderate forming capability and balanced mechanical properties for semi-structural inner panels.

As a Bake Hardenable steel, RMS-1021 CR-300Y-390T-BH offers a specific combination of strength and formability engineered for advanced automotive manufacturing. Bake hardening increases yield strength during the paint-bake cycle, improving dent resistance in finished panels.

Ameristeel maintains inventory of RMS-1021 CR-300Y-390T-BH in various gauges and widths, available as coils, sheets, or custom blanks. Our ISO 9001:2015 certified processes ensure consistent quality from prototype through production volumes.

Available coating options for RMS-1021 CR-300Y-390T-BH include Uncoated, Galvanized, Electrogalvanized, Galvannealed, Zinc-Magnesium-Aluminum, providing corrosion protection and surface preparation suited to your manufacturing process requirements.

RMS-1021 CR-300Y-390T-BH at 300 MPa yield and 390 MPa tensile compares to RMS-1021 CR-290Y-490T-DP (10 MPa higher yield at 290 MPa and 390 MPa vs 490 MPa tensile) and RMS-1021 CR-330Y-590T-DP (30 MPa lower yield at 330 MPa and 390 MPa vs 590 MPa tensile). Selecting the right grade depends on the balance between strength requirements and forming complexity for your specific stamping application.