ASTM High-Strength Steel

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A633 Gr.D

ASTM A633 Grade D is a high-strength low alloy (HSLA) steel plate designed for structural applications requiring excellent strength, toughness, and weldability.

A709 Gr.36

ASTM A709 Grade 36 is a low-alloy high-strength structural steel plate mainly used in bridges, buildings, and engineering structures.

ASTM A709 GR.50W steel plate

ASTM A709-50W is a standard specification for structural steel primarily in the fabrication of steel bridges. ASTM A709-50W covers high strength, low allow steel structural shapes, plates and bars. The atmospheric corrosion resistance of this steel in most environments is substantially better than carbon steel with or without copper addition.
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