American standards A36, A572, A992

 　　There are three main quality grades of American standard channel steel, including A36, A572, A992, etc. For example, A36 is made of carbon structural steel and A572, while A992 is made of low alloy steel

　　A572 Introduction: ASTM A572 is a high-strength low alloy structural steel, divided into 5 grades: A572Gr42, A572Gr50, A572Gr55, A572Gr60, and A572Gr65. Among them, A572Gr42, A572Gr50, and A572Gr55 steel are suitable for riveting, bolted connection, or welding structural components.

　　American standard H-shaped steel A572Gr60 and A572Gr65 are suitable for riveting, bolted connection, or welding components of bridges or other purposes

　　American standard profile materials: A992, A36, A572, GR50





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