72 F350 frame tensile strength?
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- zakt
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72 F350 frame tensile strength?
anyone know the tensile strength of a 72' F350 frame?
1972 Ford F350 crewcab


- averagef250
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Re: 72 F350 frame tensile strength?
It's probably A36, A36 has a tensile strength from 58,000 to 80,000 PSI.
1970 F-250 4x4 original Willock swivel frame chassis '93 5.9 Cummins/Getrag/NP205/HP60/D70
- zakt
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Re: 72 F350 frame tensile strength?
I would actually bet its either ASTM 1020 (people commonly call it A36 but I don't start the train without a jerk)or possibly 1026.
Most stuff that I have broke that is called 1020 or A36 typically yields around 45-50kSI and has an ultimate around 60-75kSI.
To find out for sure you can find a metallurgist to grind it for you if you are really really worried about it. Otherwise I would probably get some 1026 and call it good. It will weld just fine to either 1020 or 1026.
Most stuff that I have broke that is called 1020 or A36 typically yields around 45-50kSI and has an ultimate around 60-75kSI.
To find out for sure you can find a metallurgist to grind it for you if you are really really worried about it. Otherwise I would probably get some 1026 and call it good. It will weld just fine to either 1020 or 1026.
71 3/4 ton 4x4 highboy
68 Mercury Monteray
68 Mercury Monteray