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Low Alloy Q355 S355 Hot Rolled H-Beam for Construction Structure. Made of HSLA Q355 / S355 grade, high yield strength, save total steel consumption for construction. Hot rolled integrated forming without welding seam, stable mechanical property. Excellent weldability & bending performance, convenient for on-site installation. Good low-temperature toughness available in J2/NL/ Q355D/E grades for cold-region projects. Rational H cross-section, strong bending resistance, ideal as main beam & steel column.