Titanium Grade 2 Flat Bar Weight
Mass per metre and per foot for titanium grade 2 flat bar at 4,510 kg/m³ (ASTM B265 / B348 (UNS R50400)). Every figure is for the section as drawn. A 6 m length of this size weighs 8.1 kg (18.2 lb per 20 ft).
At the reference dimensions (w = 50 mm, t = 6 mm) this section has a cross-sectional area of 300.0 mm², giving 1.353 kg/m (0.909 lb/ft). Against carbon steel's 7,850 kg/m³ that is -42.5 % — the same section in steel would be 2.355 kg/m.
Flat Bar — formula and derivation
Area of a flat bar
A = w · t
A = w × t, where w is width and t is thickness
Worked through with the default dimensions:
A = w × tA = 50 × 6A = 300.0 mm²
- w
- Width
- t
- Thickness
Weight follows from the area with no further geometry: m = A × 10⁻⁶ × ρ, where A is in mm², ρ in kg/m³ and m in kg/m. At 4,510 kg/m³ that is 1.3530 kg/m for the reference size above.
Ti Gr 2 flat bar — size series
| Width | 3.0 | 4.0 | 5.0 | 6.0 | 8.0 | 10 | 12 | 16 | 20 |
|---|---|---|---|---|---|---|---|---|---|
| 12 mm | 0.162 kg/m · 0.109 lb/ft | 0.216 kg/m · 0.145 lb/ft | 0.271 kg/m · 0.182 lb/ft | 0.325 kg/m · 0.218 lb/ft | 0.433 kg/m · 0.291 lb/ft | 0.541 kg/m · 0.364 lb/ft | 0.649 kg/m · 0.436 lb/ft | 0.866 kg/m · 0.582 lb/ft | 1.082 kg/m · 0.727 lb/ft |
| 16 mm | 0.216 kg/m · 0.145 lb/ft | 0.289 kg/m · 0.194 lb/ft | 0.361 kg/m · 0.242 lb/ft | 0.433 kg/m · 0.291 lb/ft | 0.577 kg/m · 0.388 lb/ft | 0.722 kg/m · 0.485 lb/ft | 0.866 kg/m · 0.582 lb/ft | 1.155 kg/m · 0.776 lb/ft | 1.443 kg/m · 0.970 lb/ft |
| 20 mm | 0.271 kg/m · 0.182 lb/ft | 0.361 kg/m · 0.242 lb/ft | 0.451 kg/m · 0.303 lb/ft | 0.541 kg/m · 0.364 lb/ft | 0.722 kg/m · 0.485 lb/ft | 0.902 kg/m · 0.606 lb/ft | 1.082 kg/m · 0.727 lb/ft | 1.443 kg/m · 0.970 lb/ft | 1.804 kg/m · 1.212 lb/ft |
| 25 mm | 0.338 kg/m · 0.227 lb/ft | 0.451 kg/m · 0.303 lb/ft | 0.564 kg/m · 0.379 lb/ft | 0.676 kg/m · 0.455 lb/ft | 0.902 kg/m · 0.606 lb/ft | 1.127 kg/m · 0.758 lb/ft | 1.353 kg/m · 0.909 lb/ft | 1.804 kg/m · 1.212 lb/ft | 2.255 kg/m · 1.515 lb/ft |
| 30 mm | 0.406 kg/m · 0.273 lb/ft | 0.541 kg/m · 0.364 lb/ft | 0.676 kg/m · 0.455 lb/ft | 0.812 kg/m · 0.546 lb/ft | 1.082 kg/m · 0.727 lb/ft | 1.353 kg/m · 0.909 lb/ft | 1.624 kg/m · 1.091 lb/ft | 2.165 kg/m · 1.455 lb/ft | 2.706 kg/m · 1.818 lb/ft |
| 40 mm | 0.541 kg/m · 0.364 lb/ft | 0.722 kg/m · 0.485 lb/ft | 0.902 kg/m · 0.606 lb/ft | 1.082 kg/m · 0.727 lb/ft | 1.443 kg/m · 0.970 lb/ft | 1.804 kg/m · 1.212 lb/ft | 2.165 kg/m · 1.455 lb/ft | 2.886 kg/m · 1.940 lb/ft | 3.608 kg/m · 2.424 lb/ft |
| 50 mm | 0.676 kg/m · 0.455 lb/ft | 0.902 kg/m · 0.606 lb/ft | 1.127 kg/m · 0.758 lb/ft | 1.353 kg/m · 0.909 lb/ft | 1.804 kg/m · 1.212 lb/ft | 2.255 kg/m · 1.515 lb/ft | 2.706 kg/m · 1.818 lb/ft | 3.608 kg/m · 2.424 lb/ft | 4.510 kg/m · 3.031 lb/ft |
| 60 mm | 0.812 kg/m · 0.546 lb/ft | 1.082 kg/m · 0.727 lb/ft | 1.353 kg/m · 0.909 lb/ft | 1.624 kg/m · 1.091 lb/ft | 2.165 kg/m · 1.455 lb/ft | 2.706 kg/m · 1.818 lb/ft | 3.247 kg/m · 2.182 lb/ft | 4.330 kg/m · 2.909 lb/ft | 5.412 kg/m · 3.637 lb/ft |
| 80 mm | 1.082 kg/m · 0.727 lb/ft | 1.443 kg/m · 0.970 lb/ft | 1.804 kg/m · 1.212 lb/ft | 2.165 kg/m · 1.455 lb/ft | 2.886 kg/m · 1.940 lb/ft | 3.608 kg/m · 2.424 lb/ft | 4.330 kg/m · 2.909 lb/ft | 5.773 kg/m · 3.879 lb/ft | 7.216 kg/m · 4.849 lb/ft |
| 100 mm | 1.353 kg/m · 0.909 lb/ft | 1.804 kg/m · 1.212 lb/ft | 2.255 kg/m · 1.515 lb/ft | 2.706 kg/m · 1.818 lb/ft | 3.608 kg/m · 2.424 lb/ft | 4.510 kg/m · 3.031 lb/ft | 5.412 kg/m · 3.637 lb/ft | 7.216 kg/m · 4.849 lb/ft | 9.020 kg/m · 6.061 lb/ft |
Rows: width (mm). Columns: thickness (mm). Computed for Titanium Grade 2 at 4510 kg/m³.
| Width | 3.0 | 4.0 | 5.0 | 6.0 | 8.0 | 10 | 12 | 16 | 20 |
|---|---|---|---|---|---|---|---|---|---|
| 12 mm | 36.0 | 48.0 | 60.0 | 72.0 | 96.0 | 120.0 | 144.0 | 192.0 | 240.0 |
| 16 mm | 48.0 | 64.0 | 80.0 | 96.0 | 128.0 | 160.0 | 192.0 | 256.0 | 320.0 |
| 20 mm | 60.0 | 80.0 | 100.0 | 120.0 | 160.0 | 200.0 | 240.0 | 320.0 | 400.0 |
| 25 mm | 75.0 | 100.0 | 125.0 | 150.0 | 200.0 | 250.0 | 300.0 | 400.0 | 500.0 |
| 30 mm | 90.0 | 120.0 | 150.0 | 180.0 | 240.0 | 300.0 | 360.0 | 480.0 | 600.0 |
| 40 mm | 120.0 | 160.0 | 200.0 | 240.0 | 320.0 | 400.0 | 480.0 | 640.0 | 800.0 |
| 50 mm | 150.0 | 200.0 | 250.0 | 300.0 | 400.0 | 500.0 | 600.0 | 800.0 | 1,000.0 |
| 60 mm | 180.0 | 240.0 | 300.0 | 360.0 | 480.0 | 600.0 | 720.0 | 960.0 | 1,200.0 |
| 80 mm | 240.0 | 320.0 | 400.0 | 480.0 | 640.0 | 800.0 | 960.0 | 1,280.0 | 1,600.0 |
| 100 mm | 300.0 | 400.0 | 500.0 | 600.0 | 800.0 | 1,000.0 | 1,200.0 | 1,600.0 | 2,000.0 |
Area is a property of the geometry alone, so this table is the same for every material. It is what you enter into a stress calculation; the mass table is what you enter into an order.
Each row is one nominal size. Because the area is computed from your dimensions rather than read from a mill table, a non-standard size is just as accurate — put it into the calculator above rather than interpolating between rows.
The same flat bar in every material
Geometry is fixed and only density changes, so this table is the whole material-selection question in one view. Titanium Grade 2 is highlighted. The percentage column is against carbon steel, which is the figure most quotations are built on.
| Material | Density kg/m³ | lb/in³ | Mass / length kg/m | lb/ft | vs carbon steel |
|---|---|---|---|---|---|
| Carbon Steel | 7,850 | 0.2836 | 2.355 | 1.582 | +0.0 % |
| Stainless Steel 304 | 8,000 | 0.2890 | 2.400 | 1.613 | +1.9 % |
| Stainless Steel 316 | 8,000 | 0.2890 | 2.400 | 1.613 | +1.9 % |
| Stainless Steel 316L | 8,000 | 0.2890 | 2.400 | 1.613 | +1.9 % |
| Stainless Steel 430 | 7,700 | 0.2782 | 2.310 | 1.552 | -1.9 % |
| Aluminum 6061-T6 | 2,700 | 0.0975 | 0.810 | 0.544 | -65.6 % |
| Aluminum 5052-H32 | 2,680 | 0.0968 | 0.804 | 0.540 | -65.9 % |
| Aluminum 7075-T6 | 2,810 | 0.1015 | 0.843 | 0.566 | -64.2 % |
| Copper C11000 | 8,940 | 0.3230 | 2.682 | 1.802 | +13.9 % |
| Brass C36000 | 8,500 | 0.3071 | 2.550 | 1.714 | +8.3 % |
| Bronze C93200 | 8,800 | 0.3179 | 2.640 | 1.774 | +12.1 % |
| Titanium Grade 2 | 4,510 | 0.1629 | 1.353 | 0.909 | -42.5 % |
| Gray Cast Iron | 7,200 | 0.2601 | 2.160 | 1.451 | -8.3 % |
| Lead | 11,340 | 0.4097 | 3.402 | 2.286 | +44.5 % |
| Rigid PVC (Type I) | 1,400 | 0.0506 | 0.420 | 0.282 | -82.2 % |
| HDPE (PE 100) | 960 | 0.0347 | 0.288 | 0.194 | -87.8 % |
Same geometry throughout, so the only variable is density. Carbon steel is highlighted as the baseline.
A note on using this table for costing: mass is not price. Aluminium is roughly a third of steel's mass here, but per kilogram it costs several times more, so a straight swap rarely saves money — what it buys is reduced load on a structure or a vehicle.
About titanium grade 2
Commercially pure titanium, the workhorse corrosion grade rather than the aerospace high-strength one. Density 4,510 kg/m³ gives it 57 % of steel’s mass with a comparable tensile strength, which is the headline — but titanium’s real advantage in chemical plant is a passive oxide film that survives chlorides, wet chlorine and oxidising acids that destroy stainless. It is expensive enough that the mass change is a secondary concern to the corrosion allowance it lets you remove.
- Density
- 4,510 kg/m³ = 0.1629 lb/in³ · 0.5745× carbon steel · typical spread ±1 %
- Specification
- ASTM B265 / B348 (UNS R50400)
- Equivalents
- EN 3.7035 · JIS 2H · GB TA2
- Typical uses
- Chemical process heat exchangers · Desalination and marine · Medical implants · Anodised architectural panels
Poor machinability — low thermal conductivity causes heat to concentrate at the cutting edge. Titanium is also combustible as fine swarf.
About flat bar
Flat bar is where the site’s most common estimating mistake shows up: weight is independent of how the bar is oriented, but stiffness is not. A 50 × 6 flat bent about its strong axis is roughly 69 times stiffer than the same bar bent about its weak axis, while both weigh 2.36 kg/m. Reading weight off a flat-bar table tells you what to order; it tells you nothing about whether the section will carry the load.
Specified as width × thickness. Edge condition (square, radiused, or sheared) changes the effective area slightly, not the nominal weight.
Download this data
Ti Gr 2 flat bar — CSV
Both buttons below read the tables rendered on this page, so the file matches what you are looking at. The full catalogue — all 16 materials across all 10 sections — is on the downloads page.
Fields are quoted per RFC 4180, with a UTF-8 byte-order mark so Excel reads the mm² and · characters correctly. Blank lines separate the weight matrix from the area matrix.
Frequently asked questions
How much does titanium grade 2 flat bar weigh?
At the reference dimensions (w = 50 mm, t = 6 mm) a titanium grade 2 flat bar of this size weighs 1.353 kg/m, or 0.909 lb/ft. The table above lists the figure for every standard size so you can read your size directly instead of scaling.
How is the weight of flat bar calculated?
Weight is cross-sectional area × length × density. For this shape the area is A = w · t. At the reference dimensions that gives 300.0 mm², and multiplying by titanium grade 2's density of 4,510 kg/m³ gives 1.353 kg/m. Nothing is looked up in a table — which is why a non-standard size is calculated just as accurately as a standard one.
Why does titanium grade 2 weigh more or less than steel?
It is lighter than carbon steel for the same section — about 43 % lighter at 4,510 kg/m³. Density is the only variable: the cross-sectional area depends purely on geometry, so a flat bar of the same dimensions has the same area in every material and the mass simply scales with density. In this case the ratio is 0.5745× carbon steel.
What is the cross-sectional area of a flat bar?
The area depends only on the dimensions, not on the material, so it is identical whichever material you select: at the reference dimensions it is 300.0 mm² (0.4650 in²). That is the number you would enter into a stress or deflection calculation, and it is why changing material on this page never changes the area column.
Does a ti gr 2 flat bar weigh the same as a ti gr 2 part of a different shape?
No, and the difference is larger than most people expect. At equal nominal size, a square bar is 27.3 % heavier than a round bar, and a hollow section is typically 60–80 % lighter than the solid bar it replaces. Weight follows area, and area changes faster than dimensions do — which is exactly why this needs calculating rather than estimating.
Should I use Ti Gr 2 weight or carbon steel weight for costing?
Use the material you are actually buying. At 4,510 kg/m³ against carbon steel's 7,850 kg/m³, the same flat bar differs by 42.5 % in mass. On a per-metre quote that is invisible; on a fabricated tonnage it is the difference between a margin and a loss. This page computes the steel figure as 2.355 kg/m for comparison.
Other materials, same flat bar
The same geometry in every material, so the only variable is density.
- Carbon steel flat bar — 7850 kg/m³
- SS 304 flat bar — 8000 kg/m³
- SS 316 flat bar — 8000 kg/m³
- AL 6061 flat bar — 2700 kg/m³
- Copper flat bar — 8940 kg/m³
- Brass flat bar — 8500 kg/m³
- HDPE flat bar — 960 kg/m³
- PVC flat bar — 1400 kg/m³
Other Ti Gr 2 sections
The same density applied to every shape the site covers.
- Ti Gr 2 round bar — A = π/4 · d²
- Ti Gr 2 square bar — A = a²
- Ti Gr 2 hexagonal bar — A = (√3/2) · AF² ≈ 0.8660 · AF²
- Ti Gr 2 plate — A = w · t
- Ti Gr 2 round tube — A = π/4 · (D² − d²), d = D − 2t
- Ti Gr 2 square tube — A = a² − (a − 2t)²
Reference data and tools
- Metal weight overview — how the calculation works
- All 16 materials — densities and specifications
- All 10 sections — formulas and size series
- Density chart — lightest to heaviest
- Metal weight calculator — any size, any material
- All calculators — metal weight and pipe weight
- Download the data — CSV, generated from the same source
- Cross-reference tables — DN / NPS / material equivalents
- Methodology and sources — where every number comes from
Flat Bar area from A = w · t. Mass computed as area × length × density at 4,510 kg/m³ (ASTM B265 / B348 (UNS R50400)). No weight on this page is copied from a published table — which is why figures can differ in the last significant digit from a mill's chart calculated at a nominal density.
- Elementary plane geometry. The circle, polygon and hollow-section area formulas.
- ASTM material specifications for each grade named in the material entry (A36, A240/A276, B209/B211/B221, B152/B16/B505, B265/B348, A48, B29, D1784, D3350).
- BIPM / NIST definitional constants: international inch = 25.4 mm, foot = 0.3048 m, pound = 0.45359237 kg.
Dataset version 2026.09.1 · dimensions last verified against source 2026-09-21. Found an error? Report it — corrections are issued with a version bump.