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What Are the Different Grades of Chain?

Link chains are an important component in several industries including construction, shipping and transportation. They are used to lift, secure and pull heavy objects, making them a critical part of many operations. However, not all chains are the same, they come in different grades, which determine their strength, durability and suitability for specific applications. In this article, we'll explore the different grades of round Link chain, including G30 Link Chain , G43 Link Chain, G70 Link Chain, G80 Link Chain, G100 Link Chain, and G120Link Chain, and learn about their unique properties and uses.

 

 

 G30 Link Chain:
 G30 Link Chain, also known as Grade 30 Chain, is a general purpose mild steel chain commonly used in light to medium duty lifting and hauling applications. It is not suitable for overhead lifting and is only suitable for non-critical applications.  G30 Link chains are typically used in agricultural, industrial and construction environments where loads are not too heavy. They are not designed to withstand high shock or dynamic loads and should be used with caution to ensure safety.

 

 G43 Link chain:
 G43 Link chain, that is, grade 43 chain, is a chain with higher strength than G30 and has a wider range of applications. It is commonly used in the marine, construction and transportation industries to lift, tow and secure heavy loads.  G43 link chains are designed to carry medium to heavy loads and are suitable for overhead lifting when used within specified workload limits. They are more durable and have better wear resistance than G30 chains, making them a popular choice for demanding applications.

 

 G70 chain:
 G70 Link Chain, also known as Grade 70 Chain, is a high-strength, heat-treated carbon steel chain designed for use in transportation and traction applications. It has an easily identifiable gold chromate finish and is commonly used in the trucking and transportation industry for securing cargo and towing vehicles.  G70 chain is known for its high tensile strength and excellent wear resistance, making it ideal for heavy-duty applications where reliability and durability are critical.

 

 G80 chain:
 G80 chain or Grade 80 chain is a high-strength alloy steel chain that is heat treated to provide superior strength and durability. It is commonly used in lifting and rigging applications where heavy objects need to be lifted or secured.  G80 chains are known for their excellent impact and fatigue resistance, making them suitable for use in dynamic and high-impact load conditions. They are commonly used in the construction, mining, oil and gas industries where safety and reliability are critical.

 

 G100 chain:
 G100 chain, also known as Grade 100 chain, is a premium alloy steel chain that offers the highest strength and durability among commonly used chain grades. It is designed for the most demanding lifting and rigging applications including heavy construction, offshore lifting and material handling.  G100 link chain is heat treated and quenched for maximum strength and is typically used in critical lifting operations where safety margins are critical. They are also known for their excellent resistance to corrosion and wear, making them suitable for use in harsh and corrosive environments.

 

 G120 chain:
 G120 Link Chain or Grade 120 Chain is the highest grade link chain available, providing ultimate strength and durability. It is designed for extreme lifting and rigging applications where the highest possible safety factor is required.  The G120 chain is made of special alloy steel and undergoes advanced heat treatment processes to achieve superior strength and toughness. They are commonly used in heavy construction, offshore oil and gas, and the mining industry where loads are particularly heavy and operating conditions are challenging.


 Tianjin Hardware is a well-known manufacturer and supplier of high-quality chains, including G30, G43, G70, G80, G100 and G120 chains. Tianjin Hardware focuses on precision engineering and quality control to produce chains that meet international standards and are trusted by various industries around the world. Our link chain are designed to deliver exceptional performance, reliability and safety, making us the first choice for lifting, hauling and securing applications.

 

 In summary, different grades of link chain, including G30, G43, G70, G80, G100 and G120, offer varying levels of strength, durability and suitability for different applications. The appropriate grade of chain must be selected based on the specific requirements of the lifting or securing operation to ensure safety and reliability. Whether it's light towing or heavy construction lifting, choosing the right grade of chain link is critical to the success and safety of your operation. Reputable manufacturer Tianjin Hardware produce high-quality chain links, and industries can confidently rely on these vital components for your lifting and securing needs.