Steel Chain size and length

[jeff9366]

I have a 5/16 chain but there are links that are stretched. I now use a 3/8 chain about 16 foot long.

5/16" Grade 70 chain, or a lower grade?

 

[MH8675309]

I dont know what grade it is - bought it used,, But if nothing else to the original poster get a chain with 2 different hooks.