GMW3032M-ST-S CR240B2 Baked Hardenable — Cold Rolled Steel

GMW3032M-ST-S CR240B2 is a baked hardenable grade cold rolled steel conforming to the gm material specifications. At 240 MPa minimum yield strength, this is structural-quality steel for inner body panels, dash panels, and trunk floor reinforcements.

This specification carries the bake-hardenable (B2) designation under GMW3032M, indicating post-paint yield strength gain for dent-resistant outer panels.

Ameristeel maintains a deep inventory of GMW3032M-ST-S CR240B2 in standard and custom gauges, available as coils, slit coils, sheets, or precision blanks. As a cold rolled product, GMW3032M-ST-S CR240B2 offers the tight thickness tolerances and controlled surface finish critical for visible and semi-exposed automotive applications. Every coil is third-party tested under our ISO 9001:2015 quality system.

GMW3032M-ST-S CR240B2 is supplied with the following coating options: hot-dip galvanized (zinc) for general corrosion resistance; galvanneal (zinc-iron alloy) for superior paint adhesion and weldability; electrogalvanized for precise coating weight control and smooth surface finish. At 240 MPa yield, the coating selection for GMW3032M-ST-S CR240B2 should account for forming severity and post-stamping corrosion exposure in the final application.

GMW3032M-ST-S CR240B2 at 240 MPa yield compares to GMW3032M-ST-S CR240LA (0 MPa lower yield at 240 MPa) and GMW3032M-ST-S HR240LA (0 MPa lower yield at 240 MPa). Selecting the right grade depends on the balance between strength requirements and forming complexity for your specific stamping application.

GMW3032M-ST-S CR240B2 is an OEM-specific grade developed to meet General Motors engineering requirements for vehicle body and structural applications. Ameristeel supplies General Motors-specified steel grades directly to Tier 1 and Tier 2 automotive suppliers throughout Southeast Michigan, with full material traceability and third-party test reports on every coil. Our Fraser, MI steel processing facility maintains dedicated inventory of GMW3032M-ST-S CR240B2 to support just-in-time delivery schedules, and our ISO 9001:2015 quality system ensures that every shipment meets the exact mechanical property, surface quality, and dimensional tolerances required by General Motors production standards.

Ameristeel offers in-house processing for GMW3032M-ST-S CR240B2 at our Warren and Fraser, Michigan facilities. Available processing capabilities include precision slitting to custom widths on our multi-cut blanking line, cut-to-length sheet processing for exact dimensional requirements, laser cutting for complex profiles and prototypes on our TRUMPF fiber laser systems, press brake forming on our TruBend series with up to 110-ton capacity and 120" bend length. From raw material sourcing through finished part delivery, Ameristeel provides a single-source solution — eliminating the need to coordinate between separate steel suppliers, service centers, and fabrication shops. Learn more about our laser cutting capabilities, production steel sales, or request a quote for processing GMW3032M-ST-S CR240B2 to your exact specifications.