You could reverse this formula to determine ultimate breaking strength if all you know if the chain grade.
Grade 80 chain dimensions.
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.
Quenched and tempered before proof testing grade 80 chain specs have tensile strength twice of ordinary steel chain.
Overhead lifting tow binder chain finish.
Grade 100 chains are also referred to as grade 10 system 10 spectrum 10.
There are no minimum.
Chain grades advertised by manufacturers are one tenth of the actual mathematical grades.
It s tested throughout the manufacturing process and meets and exceeds the specifications of nacm astm and osha.
Crosby spectrum 8 alloy chain crosby spectrum 8 alloy chain hooks.
Grade 100 chain has a 20 percent increase in working load limit as compared to a similar size chain in grade 80.
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.
This allows you to reduce the size of the chain depending on the working load needed.
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.
1 2 grade 80 alloy chain per foot 4 2 out of 5 stars 3 b a products g8 3815tl grab hook with twist lock each end 3 8 grade 80 chain x 15 4 height 6 75 width 17 length.
Grade 100 chain is a premium quality high strength alloy steel.
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.
G80 alloy chain is rugged versatile high strength low weight chain.
Made from quenched and tempered alloy steel.
Only grades 80 100 or 120 should be used for overhead lifting.
That number is the chain grade.
Our selection includes full drums of grade 80 chain half drums of chain and cut grade 80 chain by the foot as well as tie down assemblies.
Never exceed working load limits grade 80 alloy is approved for overhead lifting.
Grade 80 alloy chain.
Determining chain working load limits.
So grade 80 is really 800 and grade 120 is 1 200.
Laclede alloy grade 80 100 chain and attachments are produced to exceed the rigorous requirements of overhead lifting.
Both full half drums are painted black.
Alloy chain grade 80 or grade 100 should be used for overhead lifting.
