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　　Steel coil container spreader is made of low carbon steel and low carbon alloy steel. Because heavy objects are often suspended, they are prone to wear, complex working environment and easy to corrode, they are easily consumable parts. In industrial production environment, steel coil container slings should pay attention to daily inspections and protective measures to avoid breaking and falling due to heavy load after serious corrosion.

　　Abrasion corrosion and stress crushing corrosion of steel coil container spreaders:

　　Abrasion corrosion: is the process of relative movement between the corrosive medium and the metal surface, resulting in accelerated damage and wear of metal. Under heavy load, there is a huge stress between the contact surface between the spreader and the rigging or the hanging point. Once relative movement occurs, the wear surface material undergoes chemical or electrochemical reaction with the surrounding medium, and the loss of material caused by mechanical action may turn into severe wear.

　　Stress crushing and corrosion: Under the combined action of tensile stress and corrosive environment, the component may break prematurely under the condition of lower than the IE stress. Under the action of fixed external stress, internal or external stress exists. The presence of stress distorts the lattice, the atoms are in an unstable state, the energy increases, and the electrode potential drops, and first becomes an anode in the corrosive battery, which will aggravate the corrosion. Usually, under the continuous action of tensile stress in the fixed direction, the result of stress corrosion causes cracking of the spreader material, which is called stress corrosion cracking. This is a very serious destructive corrosion consequence and must be paid attention to.

　　Steel coil container spreader is made of low carbon steel and low carbon alloy steel. Because heavy objects are often suspended, they are prone to wear, complex working environment and easy to corrode, they are easily consumable parts. In industrial production environment, steel coil container slings should pay attention to daily inspections and protective measures to avoid breaking and falling due to heavy load after serious corrosion.

　　Abrasion corrosion and stress crushing corrosion of steel coil container spreaders:

　　Abrasion corrosion: is the process of relative movement between the corrosive medium and the metal surface, resulting in accelerated damage and wear of metal. Under heavy load, there is a huge stress between the contact surface between the spreader and the rigging or the hanging point. Once relative movement occurs, the wear surface material undergoes chemical or electrochemical reaction with the surrounding medium, and the loss of material caused by mechanical action may turn into severe wear.

　　Stress crushing and corrosion: Under the combined action of tensile stress and corrosive environment, the component may break prematurely under the condition of lower than the IE stress. Under the action of fixed external stress, internal or external stress exists. The presence of stress distorts the lattice, the atoms are in an unstable state, the energy increases, and the electrode potential drops, and first becomes an anode in the corrosive battery, which will aggravate the corrosion. Usually, under the continuous action of tensile stress in the fixed direction, the result of stress corrosion causes cracking of the spreader material, which is called stress corrosion cracking. This is a very serious destructive corrosion consequence and must be paid attention to.