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.
Grade 80 chain dimensions.
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.
Grade 80 alloy chain.
Laclede alloy grade 80 100 chain and attachments are produced to exceed the rigorous requirements of overhead lifting.
Only grades 80 100 or 120 should be used for overhead lifting.
Never exceed working load limits grade 80 alloy is approved for overhead lifting.
Grade 80 chain is a heat treated alloy steel designed for high strength for overhead lifting and tie down applications.
Overhead lifting tow binder chain finish.
Quenched and tempered before proof testing grade 80 chain specs have tensile strength twice of ordinary steel chain.
Chain grades advertised by manufacturers are one tenth of the actual mathematical grades.
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.
Both full half drums are painted black.
It is the most economical of the three chain grade types that are suitable for overhead lifting grade 80 grade 100 grade 120.
Alloy chain grade 80 or grade 100 should be used for overhead lifting.
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.
All other grade 30 43 70 80 and 100 chains shall be embossed at.
Grade 100 chain has a 20 percent increase in working load limit as compared to a similar size chain in grade 80.
Astm states that alloy chain shall be able to elongate a minimum of 20 before fracture 7 3 5.
Grade 100 chains are also referred to as grade 10 system 10 spectrum 10.
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.
Made from quenched and tempered alloy steel.
Peerless grade 80 chain meets the latest guidelines of the national association of chain manufacturers nacm and astm a391 a391m.
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.
G80 alloy chain is rugged versatile high strength low weight chain.
Determining chain working load limits.
So grade 80 is really 800 and grade 120 is 1 200.
Crosby spectrum 8 alloy chain crosby spectrum 8 alloy chain hooks.
