Specifications ASTM B473 / ASME SB473 Round Bar Size 3mm~ 800mm. Square Bar Size 4mm* 4mm ~100mm* 100mm. Flat Bar Size 2mm ~ 100mm. Hex Bar Size 2mm ~ 100mm. Thickness 50 mm to 6000 mm Long Length 1 To 6 Meters, Custom Cut Length. Form Round, Square, Hex(A/F), Rectangle, Billet, Ingot, Forging etc.