TM-2011 HR-660-780-LA-S HSLA — Hot Rolled Steel

TM-2011 HR-660-780-LA-S is a hsla grade hot rolled steel conforming to the tesla material specifications. At 660 MPa minimum yield strength, this is press-hardened-class steel for rollformed safety cage components and structural energy absorbers, with high tensile capacity for safety-critical crash path components requiring controlled collapse behavior.

TM-2011 HR-660-780-LA-S is a Low Alloy / HSLA steel at 660 MPa yield and 780 MPa tensile. Micro-alloying elements in TM-2011 HR-660-780-LA-S — 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 stocks TM-2011 HR-660-780-LA-S in production-ready gauges and widths suited to high-strength stamping applications. As a 660 MPa yield hot rolled product, this specification is available in coil, sheet, and precision-blanked formats. Our ISO 9001:2015 certified facility triple-tests every coil (ID, OD, and center) to verify mechanical properties remain consistent throughout the entire length.

TM-2011 HR-660-780-LA-S 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 660 MPa yield, the coating selection for TM-2011 HR-660-780-LA-S should account for forming severity and post-stamping corrosion exposure in the final application.

TM-2011 HR-660-780-LA-S at 660 MPa yield and 780 MPa tensile compares to TM-2011 HR-660-760-CP-S (0 MPa lower yield at 660 MPa and 780 MPa vs 760 MPa tensile) and TM-2011 HR-650-700-LA-S (10 MPa higher yield at 650 MPa and 780 MPa vs 700 MPa tensile). Selecting the right grade depends on the balance between strength requirements and forming complexity for your specific stamping application.

TM-2011 HR-660-780-LA-S is an OEM-specific grade developed to meet Tesla engineering requirements for vehicle body and structural applications. Ameristeel supplies Tesla-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. As an EV-platform specification, TM-2011 HR-660-780-LA-S addresses the unique structural and lightweight demands of battery electric vehicle architecture, including battery enclosure protection and optimized crash energy management. Our Fraser, MI steel processing facility maintains dedicated inventory of TM-2011 HR-660-780-LA-S 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 Tesla production standards.

Ameristeel offers in-house processing for TM-2011 HR-660-780-LA-S 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 TM-2011 HR-660-780-LA-S to your exact specifications.