Dependable Alloy and Carbon Chains
Welded graded chain is an industrial grade chain used exclusively for rigging, towing and overhead lifting applications. The standardized grade designations are 30, 43 and 70 for carbon steel chain, and 63 and 80 for alloy steel chain. The grade number relates to the strength level of the chain, with the grade number increasing as the strength of the chain increases. We also offer weldless and non-graded chain for non-technical and low strength applications. The following provides an analysis and application recommendations for specific welded chain grades.
GRADE 30 PROOF COIL CHAIN
Electrically welded from low carbon steel, grade 30 is a durable, economical utility chain for applications that do not require a high strength to weight ratio. It has a wide range of applications throughout industry and agriculture; including logging, guard rails, towing, tailgates, and securing loads.
GRADE 43 HIGH TEST CHAIN
A higher strength carbon steel chain provides an increased strength to weight ratio. Industrial applications include lumbering, construction, binding and load securement assemblies.
GRADE 70 BINDING CHAIN
Load ratings for grade 70 chain averages 20% higher than grade 43 chain, so a smaller size chain can be used for many jobs. Advantages include less weight, easier handling and more convenient storage. Higher strength makes grade 70 ideal for truckers, loggers and highway crews; for secure load binding and tie-downs; for towing, hauling and lashing, and as trawling chain. Additional uses include oil rigs and a variety of other OEM applications.
GRADE 80 HERC-ALLOY 800 CHAIN
Grade 80 chain is specifically recommended for overhead lifting, Herc-Alloy 800 is engineered from specially selected alloy steel for the highest strength to weight ratio and maximum durability. Increased strength enables the user to employ a lighter, smaller chain on many jobs.
GRADE 100 HERC-ALLOY CHAIN
ALLOY CONVEYING CHAIN
This chain is engineered from specially selected alloy steel for high strength and durability. The chain is available in metric sizes and in case hardened and through hardened heat treatments. Industrial applications include ash handling conveyors, furnace damper door chains, dam gate chain and waste wood handling.