Different Types of Alloy Steel Chain Grade

Alloy steel chains are an essential component in various industrial applications due to their superior strength, durability, and resistance to wear and tear. Among the numerous types available, the Alloy Steel Grade 80/70/100 Chain stands out for its exceptional qualities and versatility. In this blog, we will explore the different types of alloy steel chain grades, focusing on their unique characteristics and applications.

Understanding Alloy Steel Chain Grades

The grade of a chain refers to its working load limit (WLL) – the maximum safe weight it can handle. Alloy steel chains come in various grades, with Alloy Steel Grade 70, Alloy Steel Grade 80, and Alloy Steel Grade 100 Chain being the most common. The higher the grade number, the stronger the chain.

Alloy Steel Grade 80/70/100 Chains are made from high-quality steel alloys that are heat-treated to enhance their strength and toughness. These chains are commonly used in heavy-duty lifting, rigging, and securing loads in transportation and construction industries. The grading system for alloy steel chains is based on their tensile strength, with higher numbers indicating stronger chains.

Here Are Various Types of Alloy Steel Chain Grades

Alloy Steel Grade 80 Chain

The Alloy Steel Grade 80 Chain is one of the most widely used types in the industry. Known for its excellent strength-to-weight ratio, this chain is ideal for lifting and rigging applications. It is also resistant to abrasion and corrosion, making it suitable for harsh environments. The Alloy Steel Grade 80 Chain is often used in lifting slings, load binders, and other heavy-duty applications where safety and reliability are paramount.

Alloy Steel Chain Grade 70

The Alloy Steel Chain Grade 70, also known as the transport chain, is primarily used for securing loads during transportation. It is designed to handle high loads and is commonly used in the trucking and logistics industries. This chain is heat-treated to achieve a high tensile strength, making it capable of withstanding significant stress without deformation. The Alloy Steel Chain Grade 70 is also coated with a yellow chromate finish for added corrosion resistance and easy identification.

Alloy Steel Grade 100 Chain

The Alloy Steel Grade 100 Chain is the strongest among the common grades, offering up to 25% higher working load limits compared to Grade 80. This chain is ideal for the most demanding lifting and rigging applications, including those in construction, mining, and heavy machinery operations. The increased strength of the Alloy Steel Grade 100 Chain allows for reduced chain size and weight, improving efficiency and ease of handling without compromising safety.

Alloy Steel Grade 80/70/100 Chain – Key Differences and Applications

Strength and Durability

When comparing the Alloy Steel Grade 80/70/100 Chain, the primary difference lies in their strength and load-bearing capacities. Grade 70 chains, while strong, are typically used for load securing rather than lifting due to their lower tensile strength compared to Grades 80 and 100. On the other hand, Grade 80 chains are robust enough for most lifting applications, offering a good balance between strength and weight. Grade 100 chains provide the highest strength, suitable for the most demanding tasks.

Cost Considerations

The cost of alloy steel chains increases with their grade due to the enhanced strength and manufacturing processes involved. While Alloy Steel Chain Grade 70 is more affordable and suitable for securing loads, Alloy Steel Grade 80 and 100 Chains, though more expensive, provide superior performance for lifting and rigging applications where safety is critical.

Industry Standards

Alloy steel chains must meet specific industry standards to ensure their reliability and safety. For instance, the Alloy Steel Grade 80/70/100 Chain must comply with the standards set by organizations such as the National Association of Chain Manufacturers (NACM) and the Occupational Safety and Health Administration (OSHA). These standards specify the mechanical properties, dimensions, and testing requirements for alloy steel chains.


An Alloy Steel Grade 80/70/100 Chain offers a range of options to suit various industrial needs. Understanding the differences between these grades allows businesses to select the right chain for their specific requirements, ensuring safety, efficiency, and cost-effectiveness in their operations.