Applications of GB/T 16270 Q550E Steel
Construction Machinery and Heavy Equipment
Manufactured Components: Structural parts for excavators, loaders, and cranes (e.g., booms, buckets), as well as high-stress components like hydraulic supports and bearing seats.
Advantages: High strength reduces equipment self-weight while improving load capacity; high toughness prevents fatigue fracture and extends service life.
Bridges and Building Structures
Bridge Applications: Core load-bearing structures such as main girders, crossbeams, and longitudinal beams, withstanding heavy traffic and wind-induced vibrations.
Building Applications: High-rise building frames, factory columns, and warehouse roof trusses, enhancing structural safety and durability.
Case Study: A super high-rise office building using Q550E as its load-bearing frame achieved a 30% increase in load capacity and a 20% reduction in steel usage for the same cross-section.
Marine and Offshore Engineering
Shipbuilding: Decks, bulkheads, hull plates, and other sections to resist wave impacts and ice collisions.
Offshore Platforms: Jackets, support structures, etc., adapted to deep-sea high-pressure and corrosive environments.
Advantages: High toughness ensures hull watertightness, while corrosion resistance reduces maintenance frequency.
Energy and Pressure Vessels
Petrochemical Industry: Equipment such as oil tanks, pipelines, and reactors to withstand high pressure and corrosive media.
Pressure Vessels: Components like cylinders and heads, with weld joint strength and toughness meeting safety standards for reliable operation.
Case Study: Long-distance oil and gas pipelines using Q550E improved field welding efficiency by 40% and reduced leakage risk by 50%.
Special Vehicles and Transportation Equipment
Vehicle Exteriors: Lightweight engineering machinery covers and special vehicle bodies for weight reduction.
Transport Containers: Railway freight cars, containers, etc., enhancing load capacity and structural stability.
