Heavy plates are steel plates with significant thickness, produced via a hot-rolling process. These products are used in heavy-duty load-bearing structures, heavy industrial equipment, and specialized construction projects.
Identifying Characteristics
– Flat, rectangular plates.
– Greater thickness compared to standard steel plates.
– Can be cut to specific dimensions according to technical drawings.
– Typically feature a dark gray or black surface resulting from the hot-rolling process.
There is no universally defined thickness threshold for “heavy plates” that applies across all markets. In commercial practice, classification is generally determined by specific product standards and customer requirements.
Technical Specifications
– Thickness
– Width
– Length
– Grade (Steel grade)
– Yield Strength
– Tensile Strength
– Impact Test (conducted if required)

Common Steel Grades
– Steel Grade: Characteristics
– ASTM A36: General-purpose structural carbon steel
– ASTM A572 Gr.50: High-strength structural steel
– ASTM A516 Gr.70: Steel for pressure vessels
– S355JR: Structural steel (EN standard)
– Q355B: Structural steel (Chinese standard)
Applications
– Shipbuilding.
– Tank manufacturing.
– Pressure vessels.
– Bridge and road construction.
– Heavy industrial machinery.
– Port infrastructure.
– Mining equipment.