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B-12 Coil Rod

b-12 coil rod photo

Specifications

Features

  • 1/2″ dia.: Gr. 1035/1038/1045 MHC Steel
  • 5/8″ & 3/4″ dia.: Gr. 1035/1045
  • 7/8″, 1-1/4″ & 1-1/2″ dia.: Gr. 1045
  • 1″ & 1-1/8″ dia.: Gr. 10V45

 

B-12 Coil Rod Selection Chart

Safe Working Loads – Tension (lbs) Safe Working Loads – Shear (lbs) Minimum Root Area (sq. inch) Tensile Stress (psi)    Yield Stress (psi)    Minimum Coil Penetration
9,000 6,000 .1358  130,000 110,000  2″
12,000 8,000 .2124 113,000  96,000  2-1/4″ 
18,000 12,000 .3079 117,000  100,000   2-1/4″ 
31,000 20,600

.4477

117,000  100,000   2-1/2″
38,000 25,300 .5410 140,000  120,000   2-1/2″
45,000 30,000 .7163 126,000  105,000   2-1/2″
56,000 37,500 .9161 123,000  105,000   2-1/2″
68,000 45,300 1.3892 98,000  85,000   3″

*SWL provides a factor of safety of approximately 2 to 1