ASTM A572 grades classification characteristics
Micro alloys containing niobium vanadium (C ≤ 0.23%) are classified into five grades based on yield strength: Gr42 (290MPa), Gr50 (345MPa), Gr55 (380MPa), Gr60 (415MPa), and Gr65 (450MPa), with tensile strength ranging from 415-600MPa.
ASTM A572 steel sheet core advantages
Combining high strength and excellent weldability, Gr42-55 grade is suitable for welding structures, while Gr60-65 grade is specifically designed for bridge riveting components. Hot rolling/normalizing delivery, elongation rate of 18% -35%.
ASTM A572 grade 42 50 55 60 65 high strength low alloy structural steel sheet application fields:
Widely used in construction steel structures, engineering machinery, and bridge engineering, Q355B can partially replace A572 Gr50 grade in China.
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