Grade 80 Chain Dimensions

Determining chain working load limits. Quenched and tempered before proof testing grade 80 chain specs have tensile strength twice of ordinary steel chain. All other grade 30 43 70 80 and 100 chains shall be embossed at.

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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. 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. Peerless grade 80 chain meets the latest guidelines of the national association of chain manufacturers nacm and astm a391 a391m. Grade 80 alloy chain. Made from quenched and tempered alloy steel.

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. So grade 80 is really 800 and grade 120 is 1 200. G80 alloy chain is rugged versatile high strength low weight chain. Chain grades advertised by manufacturers are one tenth of the actual mathematical grades.

Never exceed working load limits grade 80 alloy is approved for overhead lifting. Astm states that alloy chain shall be able to elongate a minimum of 20 before fracture 7 3 5. Alloy chain grade 80 or grade 100 should be used for overhead lifting. You could reverse this formula to determine ultimate breaking strength if all you know if the chain grade.

Both full half drums are painted black. 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. Crosby spectrum 8 alloy chain crosby spectrum 8 alloy chain hooks. Grade 80 chain is a heat treated alloy steel designed for high strength for overhead lifting and tie down applications.

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. Grade 100 chain is a premium quality high strength alloy steel.

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. That number is the chain grade.

Only grades 80 100 or 120 should be used for overhead lifting. Grade 100 chain has a 20 percent increase in working load limit as compared to a similar size chain in grade 80. Overhead lifting tow binder chain finish.