RMS-1021 CR-400Y-690T-TR TRIP — Cold Rolled Steel

RMS-1021 CR-400Y-690T-TR is a trip grade cold rolled steel conforming to the rivian material specifications. At 400 MPa minimum yield strength, this is high-strength steel for front-end structure components, rocker inners, and A-pillar reinforcements, with high tensile capacity for safety-critical crash path components requiring controlled collapse behavior.

As a TRIP steel, RMS-1021 CR-400Y-690T-TR offers a specific combination of strength and formability engineered for advanced automotive manufacturing. The TRIP effect provides exceptional energy absorption through retained austenite transformation during deformation.

Ameristeel maintains inventory of RMS-1021 CR-400Y-690T-TR 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-400Y-690T-TR include Uncoated, Galvanized, Electrogalvanized, Galvannealed, Zinc-Magnesium-Aluminum, providing corrosion protection and surface preparation suited to your manufacturing process requirements.

RMS-1021 CR-400Y-690T-TR at 400 MPa yield and 690 MPa tensile compares to RMS-1021 CR-420Y-480T-LA (20 MPa lower yield at 420 MPa and 690 MPa vs 480 MPa tensile) and RMS-1021 HR-420Y-480T-LA (20 MPa lower yield at 420 MPa and 690 MPa vs 480 MPa tensile). Selecting the right grade depends on the balance between strength requirements and forming complexity for your specific stamping application.