RMS-1021 CR-1200Y-1500T-MS Martensitic — Cold Rolled Steel

RMS-1021 CR-1200Y-1500T-MS is a martensitic grade cold rolled steel conforming to the rivian material specifications. At 1200 MPa minimum yield strength, this is extreme-performance martensitic steel for the most demanding anti-intrusion applications requiring peak load-bearing capacity, with extreme tensile strength for maximum occupant protection performance in the most severe crash scenarios.

As a Martensitic steel, RMS-1021 CR-1200Y-1500T-MS offers a specific combination of strength and formability engineered for advanced automotive manufacturing. The predominantly martensitic microstructure delivers the highest strength levels for anti-intrusion and structural reinforcement.

Ameristeel maintains inventory of RMS-1021 CR-1200Y-1500T-MS 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-1200Y-1500T-MS include Uncoated, Galvanized, Electrogalvanized, Galvannealed, Zinc-Magnesium-Aluminum, providing corrosion protection and surface preparation suited to your manufacturing process requirements.

RMS-1021 CR-1200Y-1500T-MS at 1200 MPa yield and 1500 MPa tensile compares to RMS-1021 CR-1150Y-1270T-DP (50 MPa higher yield at 1150 MPa and 1500 MPa vs 1270 MPa tensile) and RMS-1021 CR-1050Y-1300T-MS (150 MPa higher yield at 1050 MPa and 1500 MPa vs 1300 MPa tensile). Selecting the right grade depends on the balance between strength requirements and forming complexity for your specific stamping application.