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Questions concerning iron and steel, steel making, rod rolling, galvanizing, springs, nails, fencing, and patenting go here.

TOPIC: Formula to predict Tensile Strength for Steel Wire

Formula to predict Tensile Strength for Steel Wire 1 week 1 day ago #3121

Dear all,

Does anyone have a formula to predict the tensile strength of ferrous wire after drawing?
For example

Input Diameter : 5.5 mm
Material Grade AISI 1070 or 0.70 % C
Final Diameter : 2.18 mm
Total Reduction : 84.3 %
Initial Tensile for the rod : 1123 MPa

How to get the final Tensile ?

Thanks
Last Edit: 5 days 11 hours ago by Peter J Stewart-Hay.
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Formula to predict Tensile Strength for Steel Wire 5 days 11 hours ago #3123

Still ,the regular Ferrous Moderator is unable to login to this thread. Here is his, (Eduardo's) response:

The major wire drawing machine manufacturers have programs to calculate tensiles and die sequences.

Also a die manufacturer ( Paramount die) has a program for sale which covers all of your questions.

In the case of your example:

With an inlet rod of 1123 Mpa ( 145,000psi), the final tensile on a .086" wire will be (+,-) 245,000 psi.
Regards,
Peter J. Stewart-Hay Principal
Stewart-Hay Associates
www.Stewart-Hay.com
This email address is being protected from spambots. You need JavaScript enabled to view it.
Last Edit: 5 days 10 hours ago by Peter J Stewart-Hay.
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Formula to predict Tensile Strength for Steel Wire 5 days 9 hours ago #3124

I know these programs but I want to know the equations and constants on which these programs depend , Is it trial and error results or specific equations and constants ?
Thanks
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