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Re: steel bars

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SAE J429;  Grade 8:  bolts, screws, studs   Fy = 130 ksi, minimum tensile:  150 ksi.,  1/4" through 1.5".

Don't know what a Grade 9 is.  There appears to be a Grades 8.1 and 8.2 which have the same tensile properties.


Neil Moore, SE, SECB
neil moore and associates


At 06:25 AM 1/17/2006, you wrote:

Grade 8 Grade 9 bar material.

Does anyone have material properties for these types of bars, ranging from ¾? to 1½? diameter.  Typical applications are for hardrock mining and the lengths vary from 3? to 12?

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