Steel Grade?

[GeotechRic]

This might be a dumb question but here I go. I'm not a structural engineer and have very little experience with steel.

Does a Grade 150 steel threadbar mean that it has a 150 KSI ultimate stress?

 

[henri2]

I assume you are referring to bars used for prestressing. If you are, they conform to ASTM A 722 and the 150 ksi is the MUTS (min ultimate tensile strength)