Construction Industry

 

High - rise Buildings and Long - span Structures: In high - rise buildings, the steel - structure frames need to bear huge self - weight as well as external forces such as wind loads and earthquake loads. For example, the steel used in the core tubes and giant columns of super - high - rise buildings requires a very high tensile strength. These structural components are like the "backbones" of buildings and must ensure that they will not be damaged due to tension under various complex stress conditions. In long - span buildings such as stadiums and exhibition halls, the roof structures usually adopt long - span truss or space - truss systems. The steel needs to have a high tensile strength to bear the weight of the roof materials and the tensile forces generated by possible snow and wind loads.

 

Bridge Construction: Whether it is a highway bridge or a railway bridge, the cables, suspenders, and main trusses of the bridge have strict requirements for the tensile strength of steel. The cables of a cable - stayed bridge bear the tensile forces of the entire bridge deck and vehicle loads and must use steel with extremely high tensile strength to ensure the safety and normal use of the bridge. The same is true for the main cables of a suspension bridge, and its tensile strength is directly related to the span and bearing capacity of the bridge. In the main trusses of a bridge, the steel will be subjected to tensile stress when it bears the dynamic loads generated by vehicle movement and needs to have sufficient tensile strength to prevent deformation and fracture.

 

Mechanical Manufacturing Industry

 

Heavy Machinery and Construction Machinery: Heavy machinery such as cranes and port - handling equipment requires a very high tensile strength for components such as lifting arms and slings. When a crane lifts heavy objects, the lifting arms and slings will be subjected to huge tensile forces. Only by using steel with a high tensile strength can the equipment work safely and reliably. In construction machinery such as excavators and bulldozers, the working devices such as the bucket rods and booms will also bear relatively large tensile forces during the excavation and earth - pushing processes, and have a high requirement for the tensile strength of steel.

 

Automobile Manufacturing: Some key components of automobiles, such as the connecting rods of engines, the springs and tie - rods of suspension systems, need to have good tensile strength. The connecting rods of engines transmit power during the reciprocating movement of pistons and will be subjected to alternating tensile and compressive forces. The tensile forces require the steel to have sufficient tensile strength to prevent fracture. The tie - rods and springs of automobile suspension systems need to bear the body weight and the tensile forces generated by road bumps during vehicle driving. High - tensile - strength steel can ensure the performance and service life of these components.

 

 

 

 

 

 

 

KR/R F56 extra strength property
Grade	Mechanical Property			Charpy V Impact Test
	Yield	Tensile	Elongation	Degree	Energy 1	Energy 2
	Min Mpa	Mpa	Min %	-60	55	37
KR/R F56	550	670-830	16
Note: Energy 1 is longitudinal impact test, Energy 2 is transverse

 

 

 

 

 

 

 

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