MS 50002-LAH 380Y-450T HSLA 55 — Hot Rolled Steel

MS 50002-LAH 380Y-450T is a hsla 55 grade hot rolled steel conforming to the fiat/chrysler specifications. At 380 MPa minimum yield strength, this is high-strength steel for front-end structure components, rocker inners, and A-pillar reinforcements, with structural stamping capability for load-carrying components requiring consistent thickness reduction.

This specification uses the hot-rolled low-alloy (LAH) process route, offering cost-effective structural properties with wider gauge availability for underbody applications.

MS 50002-LAH 380Y-450T is a Low Alloy / HSLA steel at 380 MPa yield and 450 MPa tensile. Micro-alloying elements in MS 50002-LAH 380Y-450T — 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 carries MS 50002-LAH 380Y-450T across a range of gauges and widths in hot rolled form, available as coils, sheets, or custom-cut blanks. With 380 MPa minimum yield strength, this hsla 55 specification requires precise handling and testing — our ISO 9001:2015 certified processes include third-party laboratory verification on every incoming coil.

MS 50002-LAH 380Y-450T 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 380 MPa yield, the coating selection for MS 50002-LAH 380Y-450T should account for forming severity and post-stamping corrosion exposure in the final application.

MS 50002-LAH 380Y-450T at 380 MPa yield and 450 MPa tensile compares to MS 50002-LAC 380Y-450T (0 MPa lower yield at 380 MPa and 450 MPa vs 450 MPa tensile) and MS 50002-LAC 340Y-410T (40 MPa higher yield at 340 MPa and 450 MPa vs 410 MPa tensile). Selecting the right grade depends on the balance between strength requirements and forming complexity for your specific stamping application.

MS 50002-LAH 380Y-450T 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-LAH 380Y-450T 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-LAH 380Y-450T 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, shear processing for rapid sheet production. 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-LAH 380Y-450T to your exact specifications.