Key Supplementary Details
Yield strength: ≥ 345 MPa
Elongation (in a 50 mm gauge length): ≥ 22%
These properties ensure SPA-H steel has good structural load-bearing capacity and ductility, suitable for outdoor applications like scenic guide signs, building facades, and transportation facilities.
Cold working (e.g., flattening, bending) may slightly increase the local tensile strength of the steel but reduce its ductility.
Laser cutting only affects the narrow heat-affected zone (HAZ) at the cut edge, with no significant impact on the tensile strength of the bulk material.
Welding will cause a slight decrease in tensile strength in the weld zone, which can be mitigated by using matching welding materials (e.g., E7018-C1 electrodes).
