size: 1/2" to 4" materianl: China, GB/T 700: Q195; USA, Gr.B(σs185); International, ISO: HR2(σs195) IMC conduit standard: Follow 1242 IMC is lighter in weight, but as strong as Rigid. IMC is hot galvanized using Allied's patented in-line Flo-Coat process. Allied Intermediate Metal Conduit, IMC, with its lighter weight, easier wire pulling, more precise tolerances, and higher yield and tensile strengths, Allied IMC can be used under all atmospheric conditions and occupancies. For more products catalog please contact our company.