S-hook is a multifunctional metal connector named after its "S" shape. It is mainly divided into two categories: S-hook for building tie and S-hook for lifting and hoisting. The specific description is as follows:
1, S-hook for building tie up
1. Function and Structure:
Used in reinforced concrete walls to fix the spacing between the stressed steel bars on both sides, prevent steel bar displacement, and ensure structural stability. Its two ends are hooked at the intersection of the steel bars, forming an "S" - shaped tie, usually arranged in a plum blossom shape (such as Φ 8 @ 600).
-Design basis: Customized according to engineering requirements. Unless otherwise specified, it is assumed to be made of Φ 8 steel bars.
2. Application scenarios:
Mainly used in cast-in-place concrete walls, beams, columns and other parts that require strengthening the integrity of the steel mesh, it is a key detail in seismic design of buildings.
2, S-hook for lifting and hoisting
1. Material and characteristics:
Material: Made of high-strength alloy steel (such as grade 80 specialized steel for rigging) or stainless steel (such as SUS304), with high load-bearing capacity, wear resistance, and corrosion resistance.
Structure: Formed by forging process, the surface is smooth without cracks. Welding or casting hooks are prohibited to avoid the risk of stress concentration and fracture.
2. Core functions:
Used for hanging heavy objects in cranes and lifting equipment, transmitting loads and ensuring safe lifting through the combination of hooks and ropes/chains.
3. Usage guidelines:
Installation requirements: The hook should be fully embedded in the bottom of the hook to avoid deformation caused by twisting or hardening; Overloading or repairing worn/cracked S-hooks is prohibited.
Applicable fields: Heavy equipment lifting scenarios such as power, metallurgy, bridge construction, and industrial production lines.
------
3, Other types of S-hooks
1. Stainless steel S-hook spring:
Made of elastic stainless steel, it has both corrosion resistance and plasticity, and is used for hanging and fixing lightweight components (such as homes and electronic devices).
Design parameters: The spring constant (k=Ed /(64D ³/n ²)) needs to be calculated to optimize the elasticity and size matching.
------
4, Summary
The S hook achieves the functions of tying, hanging, or fixing through its unique "S" - shaped structure, and is widely used in construction engineering, heavy industry, and daily scenarios. When using, it is necessary to strictly distinguish types and comply with material, load, and installation specifications to ensure safety and reliability.
Audited Supplier 
){kind=link}