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Re: Old Structural Mesh BF912

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I have had to correct the first 9 ga value for the first listing of Birmingham. All are shown again.
It sounds like you are using the British values, so all is fine.

The Carnegie steel hand book of 1926 showed the following wire gage sizes, in inches, and all wire had a design strength of 20 ksi
9ga= 0.148       12ga= 0.109        Birmingham Wire BWG or Stubs Iron Works
9ga= 0.114423 12ga= 0.080808 American Wire or Browne & Sharpe
9ga= 0.1483 12ga= 0.1055 American Steel & Wire Co formerly Washburn & Moon
9ga= 0.145        12ga= 0.105      Trenton Iron Company
9ga= 0.144        12ga= 0.104      British Imperial Standard Wire SWG
9ga= 0.1398      12ga= 0.0991   Standard Birmingham Sheet and Hoop BG

David Merrick, SE


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