MS 50002-LAC 550Y-620T HSLA Grade 80 — Cold Rolled Steel

MS 50002-LAC 550Y-620T is a hsla grade 80 grade cold rolled steel conforming to the fiat/chrysler specifications. At 550 MPa minimum yield strength, this is ultra-high-strength steel for door intrusion beams, bumper reinforcements, and tunnel structures, with substantial tensile reserve for energy-absorbing crush zones and progressive deformation members.

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

As a Low Alloy / HSLA steel, MS 50002-LAC 550Y-620T offers a specific combination of strength and formability engineered for advanced automotive manufacturing. This advanced high-strength classification meets demanding structural performance requirements.

Ameristeel maintains inventory of MS 50002-LAC 550Y-620T 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 MS 50002-LAC 550Y-620T include Galvanized, Galvanneal, Electrogalvanized, providing corrosion protection and surface preparation suited to your manufacturing process requirements.

MS 50002-LAC 550Y-620T at 550 MPa yield and 620 MPa tensile compares to MS 50002-LAH 550Y-620T (0 MPa lower yield at 550 MPa and 620 MPa vs 620 MPa tensile) and MS 50002-MCH 550Y-600T (0 MPa lower yield at 550 MPa and 620 MPa vs 600 MPa tensile). Selecting the right grade depends on the balance between strength requirements and forming complexity for your specific stamping application.