Grade 43 High Test Chain also known as G4 or G40 chain conforms to ASTM A413/A413M standards. Suitable for industrial, construction, agricultural and logging operations. These chains are not designed and produced for overhead lifting purposes. They are tested to 2 times the working load before leaving the factory.

TOPONE® can produce 100% ASTM A413 G70 chain, with regular sizes and Short Link options available.A high quality, high strength carbon steel chain, heat treated,Used for load securement.Not to be used in overhead lifting.Meets Department Of Transportation Regulations.The surface is yellow chromate color.TOPONE® Grade 70 Chain is the chain of choice for load binding applications. It is also well suited for tie-downs, towing and logging operations. Its strength to weight ratio exceeds that of Proof Coil and High Test chain.

Grade 80 Chain used in overhead lifting applications. 80 Chain has excellent energy absorption and is manufactured using special analysis alloy steel. G80 alloy chain is rugged, versatile, high-strength, low-weight chain. Quenched and tempered before proof testing, Grade 80 chain specs & dimensions have tensile strength twice of ordinary steel chain.

Made of special CRNIMO alloy steel, 25~30% stronger than grade 80 chain. The weight for Grade 100 chain is on average 20% lighter than Grade 80 chain at the same working load. Meets the chain performance requirements of ASTM A973