Our Push Pier tube are manufactured from high strength/low alloy hot rolled steel. Push Pier structural tubes are offered in 3″ diameter. Grip-Tite offers these tubes in two thicknesses; our Standard Duty is 0.12″ and our Heavy Duty is 0.188″
3.0-inch Outside Diameter (O.D.) x 0.120-inch wall tube steel, ultimate tensile strength = 80,000 psi (min.), yield tensile strength = 70,000 psi (min.)
2.75-inch O.D. x 0.120-inch wall tube steel, ultimate tensile strength = 80,000 psi (min.), yield tensile strength = 70,000 psi (min.)
Bracket Tube
3.875-inch O.D. x 3.125-inch Inside Diameter (I.D.) x 10-inch long DOM mechanical steel tubing conforming to ASTM 513 ‘ Type 5 / Grade 1026. Ultimate tensile strength = 100,000 psi (min.), yield tensile strength = 90,000 psi (min.)
Angle Bracket
0.5-inch thick flat plate conforming to ASTM A-36 hot rolled steel bent to form a 90-degree angle with equal sides of approximately 8 inches. Ultimate tensile strength = 58,000 psi (min.), yield tensile strength = 36,000 psi (min.)
Bracket Support Strap
0.375-inch thick x 3 inches wide x 21.25 inches flat bar conforming to ASTM A-36 hot rolled steel which is bent into a “horseshoe” shape around the bracket tube. Ultimate tensile strength = 58,000 psi (min.), yield tensile strength = 36,000 psi (min.)
Top Plate
0.75-inch thick x 5.5 inches wide x 9.5 inches long conforming to ASTM A-36 hot rolled steel. Ultimate tensile strength = 58,000 psi (min.), yield tensile strength = 36,000 psi (min.)
Cap Plate
1.0-inch thick x 4.0 inches wide x 8.5 inches long conforming to ASTM A-36 hot rolled steel. Ultimate tensile strength = 58,000 psi (min.), yield tensile strength = 36,000 psi (min.)
Weld
E71T1, minimum tensile strength = 71,000 psi ‘ performed by AWS certified welder
Threaded Rod
0.75-inch diameter x 12 inches long ASTM A311 ‘ Class B / Grade 8 Zinc Plated. Ultimate tensile strength = 150,000 psi, yield tensile strength = 130,000 psi
Foundation Pier System, which includes pier tube, tube reinforcing insert and foundation bracket, tested by an Independent Laboratory to peak loads exceeding 70,000 pounds (70 kips).
See ICC-ES Legacy Report #22-03 prepared by the International Code Council
Push Pier Evaluation Report
Grip-Tite Manufacturing Co Push Piers Technical Key