Why ASTM A490 in direct tension must be pretensioned but not A325?
Why ASTM A490 in direct tension must be pretensioned but not A325?
(OP)
My friends
I can find no explanation as to why ASTM A490 bolts in direct tension must be fully pretensioned. This is not required for A325. Without understanding the mechanics involved, I am in the dark.
thanks in advance
ijr
I can find no explanation as to why ASTM A490 bolts in direct tension must be fully pretensioned. This is not required for A325. Without understanding the mechanics involved, I am in the dark.
thanks in advance
ijr






RE: Why ASTM A490 in direct tension must be pretensioned but not A325?
RE: Why ASTM A490 in direct tension must be pretensioned but not A325?
Dik