Need some advice on material selection

[Tig Man]

Major Trans-Am chassis brackets are .090 Normalized Chromoly. it cannot be broke to form 90 degree gussets. You could try Annealed stock but 8 out of 10 times it will fracture along the break line. I think you should make the gusset go all the way to the radius past the hole. We make a doubling washer out of the same material that the parent metal. It doesn't make sense to use chromo if the rest is mild steel. It's only as strong as the parent metal and the welds. Make the bracket flat then weld the gussets. Just my 2 cnts.




Mark

[astroracer]

Major Trans-Am chassis brackets are .090 Normalized Chromoly. it cannot be broke to form 90 degree gussets. You could try Annealed stock but 8 out of 10 times it will fracture along the break line. I think you should make the gusset go all the way to the radius past the hole. We make a doubling washer out of the same material that the parent metal. It doesn't make sense to use chromo if the rest is mild steel. It's only as strong as the parent metal and the welds. Make the bracket flat then weld the gussets. Just my 2 cnts.


Mark

Thanks Mark,
I appreciate the insight. My plan is to make the brackets and weld on the gussets during assembly just as you suggested.
I will also modify the end of my brackets to run the gussets past the center of the bolt hole. Thanks.
Mark