Grade 80 Chain Strength

Chain grades advertised by manufacturers are one tenth of the actual mathematical grades.

Grade 80 chain strength. Quenched and tempered before proof testing grade 80 chain specs have tensile strength twice of ordinary steel chain. Grade 120 tie downs offer the highest strength available in the industry with 20 more strength than comparable grade 100 chain and up to 50 more strength than grade 80 chain. Grade 80 chains are also referred to as grade 8 system 8 spectrum 8. This means you can use a smaller and lighter chain to get the job done without sacrificing working load limits.

Free shipping by amazon. The astm states that alloy chain shall be able to elongate a minimum of 20 before fracture. Tensile strength following heat treatment meets or exceeds all existing osha government nacm and astm specification requirements. It is quenched and tempered before proof testing and the ultimate tensile strength is over twice that of ordinary steel chain.

Get it as soon as sat oct 10. Determining chain working load limits. Currently alloy chain of grade 80 or grade 100 should be used for overhead lifting. Grade 80 chain was specifically designed to for the rigorous requirements of overhead lifting applications.

That number is the chain grade. Grade 80 chain is a heat treated alloy steel designed for high strength for overhead lifting and tie down applications. Any lower grade chain should not be used. You could reverse this formula to determine ultimate breaking strength if all you know if the chain grade.

Grade 80 chain is a premium quality high strength alloy steel. Alloy chain grade 80 or grade 100 should be used for overhead lifting. So grade 80 is really 800 and grade 120 is 1 200. It is the most economical of the three chain grade types that are suitable for overhead lifting grade 80 grade 100 grade 120.

Newer and stronger still is grade 120 chain. A newer product in the market grade 120 chain is up to 50 stronger than grade. Astm states that alloy chain shall be able to elongate a minimum of 20 before fracture 7 3 5. Grade 80 embossed p8.

Grade 100 chains are embossed with a 10 or 100. Grade 80 chain is embossed using an 8 80 or 800. Only 3 left in stock more on the way. Considered premium quality chain it offers about a 25 higher work load limit over grade 80 chain.

To ensure that alloy chain consistently meets this requirement astm requires the use of certain alloying elements in the manufacturing of the steel for alloy steel chain. It is safe for overhead lifting. 5 0 out of 5 stars 2. Chain grades for overhead lifting g80 g100 or g120.

Grade 80 chain is approved for overhead lifting.