Elbows Both ends are male (fitting) size. High quality wrinkle free products. Pressure: Exceeds SMACNA’S high velocity, medium pressure requirements. (-2 in. WG to +10 in. WG) Material: G 90 Galvanized Steel Sheets that conform to ASTM A653/A924 standards. Long Radius 90° Long Radius 45° Short Radius 90° Short Radius 45° Flanged Elbow 90° Flanged Elbow 45°