Grade 80 Chain Dimensions

Grade 80 alloy chain. Alloy chain grade 80 or grade 100 should be used for overhead lifting. Chain grades advertised by manufacturers are one tenth of the actual mathematical grades.

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Chain Grades Comparing Grade 30 Grade 43 Grade 70 Grade 80 Grade 100 And Grade 120 Chain

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Grade 80 chain dimensions.

Grade 100 chain has a 20 percent increase in working load limit as compared to a similar size chain in grade 80. Grade 100 chain is a premium quality high strength alloy steel. You could reverse this formula to determine ultimate breaking strength if all you know if the chain grade. Astm states that alloy chain shall be able to elongate a minimum of 20 before fracture 7 3 5.

All other grade 30 43 70 80 and 100 chains shall be embossed at. G80 alloy chain is rugged versatile high strength low weight chain. Peerless grade 80 chain meets the latest guidelines of the national association of chain manufacturers nacm and astm a391 a391m. Quenched and tempered before proof testing grade 80 chain specs have tensile strength twice of ordinary steel chain.

Crosby s 314a clevis sling hook w integrated latch crosby s 314a clevis sling hook w integrated latch crosby s 315a eye sling hook w integrated latch crosby s 315a eye sling hook w integrated latch. B a products g8 1410tl grab hook with twist lock each end 1 4 grade 80 chain x 10 4 3 height 7 5 width 17 7 length. So grade 80 is really 800 and grade 120 is 1 200. That number is the chain grade.

Both full half drums are painted black. Never exceed working load limits grade 80 alloy is approved for overhead lifting. Lacled alloy chain and attachments offer a design strength and elongation surpassing the national association of chain manufacturers nacm specifications as shown in the following charts. It is the most economical of the three chain grade types that are suitable for overhead lifting grade 80 grade 100 grade 120.

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. Laclede alloy grade 80 100 chain and attachments are produced to exceed the rigorous requirements of overhead lifting. Painted shot blast self colored full drums of 3 4 7 8 and 1 are packaged in steel drums. This allows you to reduce the size of the chain depending on the working load needed.

Grade 100 chains are also referred to as grade 10 system 10 spectrum 10. Determining chain working load limits. Grade 80 chain is a heat treated alloy steel designed for high strength for overhead lifting and tie down applications. Crosby spectrum 8 alloy chain crosby spectrum 8 alloy chain hooks.

Made from quenched and tempered alloy steel. Nacm welded steel chain specifications adopted april 26 2003 6 8 1 1 5 16 8 7 mm and 3 8 10 mm grade 43 and 70 chain shall be embossed at intervals no greater than 1 ft. Only grades 80 100 or 120 should be used for overhead lifting.