Non-ferrous metal round bar material specifications depend on the specific metal type, such as aluminum, copper, brass, or nickel. Common standards include ASTM B221 for aluminum alloys, ASTM B16 for free-cutting brass, and ASTM B187 for copper bars, typically available in diameters from 3 mm to 300 mm and lengths up to 6 meters. [1, 2, 3, 4, 5] Common Non-Ferrous Materials & Specifications • Aluminum Alloys: • Grades: 6061, 6063, 2024, 7075 • Standards: ASTM B221 (Extruded bars), ASTM B211 (Rolled/cold-finished bars) [1, 2] • Copper & Copper Alloys: • Grades: C11000 (ETP Copper), C10200 (OF Copper) • Standards: ASTM B187 (Electrical copper bar), ASTM B152 [2, 6, 7, 8, 9] • Brass Alloys: • Grades: C36000 (Free-cutting brass), C38500 • Standards: ASTM B16 (Machinable brass rod), ASTM B453 [2, 10] • Nickel & Special Alloys: • Grades: Monel, Inconel, Hastelloy, Copper-Nickel • Standards: ASTM B164 (Nickel-copper alloy rod), ASTM B473, ASTM B365 (Tantalum) [2, 6, 11, 12, 13] Physical & Supply Characteristics • Shapes: Round, hexagonal, square, or flat bars • Finishes: Extruded, cold-drawn, smooth polished, or black (as-rolled) • Standard Lengths: 2 to 6 meters, or custom cut sizes • Tolerances: Metric and imperial sizes conforming to international codes (ASTM, EN, JIS, DIN) [2, 4, 11, 14, 15] If you can tell me the specific metal type (aluminum, brass, copper, or nickel) and your intended application, I can give you the precise grade and mechanical property requirements you need.