MS 50002-LAC 300Y-380T HSLA Grade 40 — Cold Rolled Steel

MS 50002-LAC 300Y-380T is a hsla grade 40 grade cold rolled steel conforming to the fiat/chrysler 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.

This specification uses the cold-rolled low-alloy (LAC) process route, providing tight thickness tolerances and controlled surface roughness for precision stamping.

MS 50002-LAC 300Y-380T is a Low Alloy / HSLA steel at 300 MPa yield and 380 MPa tensile. Micro-alloying elements in MS 50002-LAC 300Y-380T — typically niobium, vanadium, or titanium — provide grain refinement and precipitation strengthening, delivering structural-grade mechanical properties with good weldability and formability for automotive and industrial applications.

Ameristeel maintains a deep inventory of MS 50002-LAC 300Y-380T in standard and custom gauges, available as coils, slit coils, sheets, or precision blanks. As a cold rolled product, MS 50002-LAC 300Y-380T 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.

MS 50002-LAC 300Y-380T 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 300 MPa yield, the coating selection for MS 50002-LAC 300Y-380T should account for forming severity and post-stamping corrosion exposure in the final application.

MS 50002-LAC 300Y-380T at 300 MPa yield and 380 MPa tensile compares to MS 50002-LAH 300Y-370T (0 MPa lower yield at 300 MPa and 380 MPa vs 370 MPa tensile) and MS 50002-DPC 290Y-490T (10 MPa higher yield at 290 MPa and 380 MPa vs 490 MPa tensile). Selecting the right grade depends on the balance between strength requirements and forming complexity for your specific stamping application.

MS 50002-LAC 300Y-380T is an OEM-specific grade developed to meet Stellantis (Fiat/Chrysler) engineering requirements for vehicle body and structural applications. Ameristeel supplies Stellantis (Fiat/Chrysler)-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 MS 50002-LAC 300Y-380T 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 Stellantis (Fiat/Chrysler) production standards.

Ameristeel offers in-house processing for MS 50002-LAC 300Y-380T 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 of high-strength profiles on our TRUMPF fiber laser with up to 4kW power, 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 MS 50002-LAC 300Y-380T to your exact specifications.