Brass Flat Bar Weight Calculator
Calculate the weight of Brass Flat Bar by entering your dimensions. The density of Brass is 0.3065 lb/in³ (8484 kg/m³). Use this calculator for quick stock weight estimates in your CNC machining projects. Accurate weight calculations are essential for shipping quotes, material cost estimation, fixturing load analysis, and structural design verification. The theoretical weight formula assumes a uniform cross-section and standard alloy density; actual weights may differ slightly by grade and mill tolerance. Weight data is calculated using the standard volumetric formula multiplied by the material density constant shown above.
Material Properties
| Material | Brass |
| Shape | Flat Bar |
| Density | 0.3065 lb/in³ / 529.6 lb/ft³ / 8484 kg/m³ |
| Example Weight | 1.839 lb / 0.834 kg |
Compare Materials — Flat Bar
| Material | Weight (lb) | Weight (kg) |
|---|---|---|
| Aluminum | 0.585 | 0.265 |
| Titanium | 0.966 | 0.438 |
| Cast Iron | 1.56 | 0.708 |
| Steel | 1.7 | 0.771 |
| Stainless Steel | 1.725 | 0.782 |
| Brass (current) | 1.839 | 0.834 |
| Copper | 1.944 | 0.882 |
Sourcing and Use Notes
C360 free-cutting brass (61.5% Cu, 35.5% Zn, 3% Pb) is the default machining brass — runs at high SFM with sharp positive-rake tooling and produces small broken chips ideal for Swiss-style turning. Used for plumbing fittings, decorative hardware, gears, and electrical connectors where solderability and dimensional stability matter. Lead-free brasses such as C314 and C485 are increasingly required for drinking-water and food-contact parts under NSF/ANSI 372; expect slightly poorer chip control and lower achievable surface speeds versus C360.
Rectangular flat bar is the go-to stock for brackets, fabricated frames, machine slides, gibs, knife edges, and electrical bus bars. Standard hot-rolled flat bar holds about ±1.5% on cross-section per ASTM A6 — fine for weldments but loose for machine-fit features, so over-size for finishing operations. Cold-finished flat bar (1018 or 12L14 in steel; 6061-T6511 in aluminum) holds tighter tolerances and presents a clean machinable surface. Edges are roll-formed with a small radius; specify '90-degree cut edge' if a sharp corner is critical.
Common Applications
Brass Flat Bar is a standard stock form used in structural frames, machine bases, brackets, and fabricated components. Its consistent cross-section simplifies weight-per-foot calculations and material takeoffs for procurement and shipping cost estimates. Engineers and machinists rely on theoretical weight data during the quoting and planning stages before final parts are produced. For large orders or weight-critical designs, request certified mill test reports (MTRs) to confirm actual density and alloy composition.
Sourcing and Weight Tolerance Note
This weight is based on the theoretical density of Brass. Mill tolerances (ASTM A6 allows ±2.5% on cross-sectional area for structural shapes) and surface treatments (anodizing, plating, painting) may add 1–3% to actual shipped weight. Order 5–10% material overage to account for saw kerfs and offcuts. Always verify actual material density with your supplier's material test report (MTR) for critical structural or load-bearing applications. Compare weights across materials using the comparison table above to make informed material selection decisions for your project.