How Does a Chain Binder Work?

How Strong Is Grade 70 Chain?

Grade 70 chain is commonly used for trucking and is made of high-strength, low-alloy carbon steel. The heat-treating process further strengthens this chain. It is available in a wide variety of weights and has a load rating of approximately three thousand to fifteen thousand pounds. Its yellow zinc chromate finish and load tests make it suitable for heavy loads. Listed below are some benefits of using grade 70 chain for your truck.

The grade 70 chain is the strongest type of carbon steel chain on the market. It is usually coated with yellow chromate and is used in load-binding, towing, and logging applications. Its strength-to-weight ratio is excellent, but it is not recommended for overhead lifting. In general, you should opt for an all-graded steel chain if you're using it for towing and overhead lifting.

Chain grades indicate the ultimate breaking strength of the chain in N/mm, based on the area of two cross-sections of one link. Manufacturers use this value to determine the breaking strength of a chain. The newton value, when compared to the advertised grade, is about one tenth as strong as the actual mathematical grade. For example, a Grade 70 chain is 100,526 psi, or seven hundred and twenty N/mm.

The Grade 70 chain is not recommended for overhead lifting applications, but is an excellent choice for binding and towing heavy loads. This chain is made of heat-treated carbon steel and is 20% stronger than Grade 43 chains. Its yellow chromate gold finish makes it easily identifiable and is recognizable. Its higher strength-to-weight ratio makes it ideal for heavy loads. It is also much more robust than Grade 30, and is also more durable. However, if you're planning to lift or tie-down loads, grade 70 chain may not be the best choice for you.

When selecting cargo chain, be sure to consider the working load limit. While the maximum weight limit of grade 70 chains is 70 pounds, it is not suitable for overhead lifting. If your cargo weighs less than this, you'll need a grade 100 chain instead. Using grade 70 chains for overhead lifting is not recommended if your safety gear is not in good condition. You should also look out for environments that have acids or corrosive liquids.

Grade 70 chains are generally 25% stronger than Grade 43. They're generally used in industrial applications and for heavy-duty towing. Grade 80 and Grade 100 chains are approved for overhead lifting and heavy-duty towing. Among all steel alloy chains, Grade 120 is the strongest, with tensile strength of up to 22,600 pounds. If you're looking for the best lifting chain, grade 120 may be the best choice.

Compared to grade 30, grade 40 chain has the lowest strength. The low-stretch limits of grade 43 make it suitable for household or general-purpose applications. Grade 30 chain is ideal for general-purpose uses and can be used for towing and general utility applications, but is not recommended for overhead lifting. It has a working load limit of approximately two-to-three thousand pounds. So, you may use it for light-duty jobs in agriculture and light construction.