Australian Standard Chain-Grade 70 Chain

Grade 70 chains, also known as transport chains or tie-down chains, are typically made from high-strength alloy steel and are designed to meet specific performance requirements. They are widely used in the transportation industry for securing heavy loads during transportation, such as on trucks, trailers, and flatbeds.

1. Material: Grade 70 chains are typically made from alloy steel with a high carbon content, which provides the chains with excellent strength and toughness.

2. Strength and Load Capacity: Grade 70 chains have a higher tensile strength and working load limit compared to lower grade chains. They are designed to safely handle heavy loads and withstand demanding conditions.

3. Markings: Grade 70 chains are usually marked with specific identification codes or markings, such as "G70" or "70" on each link, to indicate their grade and ensure proper identification.

4. Surface Treatment: Grade 70 chains may undergo surface treatments, such as hot-dip galvanizing, to enhance their corrosion resistance and durability, especially when used in outdoor or corrosive environments.