Old Anchor Bolt steel Grade ?

[SKJ25POL]

Does anybody know in 50's what was the steel grade used for an Anchor Bolt?
I have a drawing dated 3-11-54 but I cannot find the steel grade they used for the anchor bolt and the concrete strength f'c

Thank you for your help.

 

[SKJ25POL]

I am sorry I should have mentioned my question was the anchor bolt grade 1954 to maybe 1958 in United States.

Thank you

 

[JStephen]

AWWA D100 of 1959 shows A307 Gr. A or B for anchor bolts, if that helps. That would have been larger sizes, 1" or up.
The AISC books from that era seem to be strangely silent on bolt specifications- they give allowable stresses for bolts, and specifications for rivet steel, and typical details for anchor bolts, but I don't see a standard called out for bolt material, other than the threading/dimensional standards.

 

[SKJ25POL]

Wow,
No structural engineer in this fourm knows what garde of steel may have been used for a base plate anchor bolt in 1954?

 

[bridgebuster]

The 1983 AASHTO Maintenance Manual is silent on in the issue but it implies A307.

Back then did anybody really care about anchor bolts for routine applications?

 

[JStephen]

Digging around a little more, I find in the A7 specification of 1946, that Structural Bolts, "bolts to be employed in permanent connections" are to fall under Section 9a, which gives tensile strength as 60,000 to 72,000 psi, IE, the same as the structural steel specification, and yield as 1/2 of tensile, but not less than 33,000 psi.

 

[Lomarandil]

A bit older than yours, but we've found 1930s anchor bolts (large diameter, 2-1/2" I think) to be comparable to A307, and used an allowable stress of 24.5ksi per the AASHTO Manual for Bridge Evaluation.

 

[thaidavid40]

Some of us weren't even born until 1954! However, most low-alloy steels in that era could be counted on for a 33,000psi yield strength. Allowables in tension were in the range of 0.6Fy.

Thaidavid