Shaft material: Seamless high tensile pipe, conforms to ASTM A500 GRADE B or Customized. Helices material: ASTM A36 hot rolled plate. Corrosion protection: ASTM A153, hot dipped zinc coating. Leading edge of helices beveled 45 degrees. Greater section modulus strength to resist ...
Posts are manufactured conforming to FHWA and ATSSA standard. Steel material conforms to ASTM A499, Grade 60. All kinds of specification including 1.12lbs/ft, 2.00lbs/ft, 2.03lbs/ft, 2.08lbs/ft, 2.10lbs/ft, 2.25lbs/ft, 2.50lbs/ft and more. 3/8\'\' or 7/16\'\' diameter holes on ...
Posts are manufactured conforming to FHWA and ATSSA standard. Steel material conforms to ASTM A1011, Grade 50. Yield strength after cold-forming is 60,000 psi minimum. Posts are manufactured from hot-dipped galvanized steel conforming to ASTM A653, G90 or G140. The posts are ...