How much does aluminium weigh per metre?

Its section area in mm² × 0.0027 kg, for 6060, 6061, 6063 and 6082 (2700 kg/m³). A 20 mm round bar weighs 0.848 kg/m, a 40 × 40 × 2 mm square tube 0.821 kg/m and a 50 × 5 mm flat bar 0.675 kg/m.

Is 7075 heavier than 6061 or 6082?

Yes, by 4.1 %: the data sheets give 2810 kg/m³ for 7075 and 2700 for 6061 and 6082. The 5000 series are lighter: 5754 at 2660 and 5083 at 2650 kg/m³.

How much does a sheet of aluminium weigh?

Its thickness in mm × 2.70 kg/m² in 6082, × 2.66 in 5754 and × 2.71 in 1050A. A 1250 × 2500 × 2 mm sheet weighs 16.63 kg in 5754 and 16.88 kg in 6082.

Metal · Weight

Aluminium weight calculator, by alloy and shape

Aluminium (aluminum, in the US) weighs 2700 kg/m³ in the alloys most bars, tubes and profiles are made of: 6060, 6061, 6063 and 6082. That is about a third of steel: a 20 mm round bar weighs 0.848 kg per metre, a 40 × 40 × 2 mm square tube 0.821 kg/m and 2 mm sheet 5.40 kg/m². The data sheets put the other common alloys between 2650 kg/m³ (5083) and 2810 kg/m³ (7075): pick yours in the list below.

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Weight per metre

— kg/m

One piece

— kg

Total

— kg

Section

— mm²

Cutting these from stock bars? The linear cutting optimizer works out how many bars your cut list needs, with the saw kerf, and which offcuts are worth keeping.

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Density of each alloy, from its data sheet

Ten alloys that bars, tubes, profiles and sheet are sold in, with the density each supplier’s data sheet prints. Each alloy opens the calculator with it.

Alloy	EN designation	Density, kg/m³	kg/m² per mm	Against 6082	Source
1050A	EN AW-1050A · Al 99,5	2710	2.71	+0.4 %	RS PRO, data sheet (PDF): 2.71 g/cm³
3003	EN AW-3003 · Al Mn1Cu	2730	2.73	+1.1 %	Smiths Metal Centres, data sheet (PDF): 2.73 g/cm³
5052	EN AW-5052 · Al Mg2,5	2680	2.68	−0.7 %	Smiths Metal Centres, data sheet (PDF): 2.68 g/cm³
5083	EN AW-5083 · Al Mg4,5Mn0,7	2650	2.65	−1.9 %	Smiths Metal Centres, data sheet (PDF): 2.65 g/cm³
5754	EN AW-5754 · Al Mg3	2660	2.66	−1.5 %	Smiths Metal Centres, data sheet (PDF): 2.66 g/cm³
6060	EN AW-6060 · Al MgSi	2700	2.70	same	BIKAR-METALLE, product page: 2.7 g/cm³
6061	EN AW-6061 · Al Mg1SiCu	2700	2.70	same	Smiths Metal Centres, data sheet (PDF): 2.70 g/cm³
6063	EN AW-6063 · Al Mg0,7Si	2700	2.70	same	Smiths Metal Centres, data sheet (PDF): 2.70 g/cm³
6082	EN AW-6082 · Al Si1MgMn	2700	2.70	same	Smiths Metal Centres, data sheet (PDF): 2.70 g/cm³
7075	EN AW-7075 · Al Zn5,5MgCu	2810	2.81	+4.1 %	Smiths Metal Centres, data sheet (PDF): 2.81 g/cm³

The 5000 series carry magnesium, which is lighter than aluminium, and come out lighter; 7075 carries zinc and copper and comes out 4.1 % heavier. The temper (T6, H14…) does not change the density. The certificate of your batch, when it gives one, beats these figures.

Aluminium weight charts

Worked out by the calculator above at 2700 kg/m³ (6060, 6061, 6063 and 6082), from the nominal section with sharp corners. For another alloy multiply by its density ÷ 2700: × 1.041 for 7075, × 0.985 for 5754.

Round, square and hexagon bar, kg/m

Size, mm	Round	Square	Hexagon, across flats	Round, 3 m bar, kg
6	0.076	0.097	0.084	0.229
8	0.136	0.173	0.150	0.407
10	0.212	0.270	0.234	0.636
12	0.305	0.389	0.337	0.916
15	0.477	0.608	0.526	1.431
16	0.543	0.691	0.599	1.629
20	0.848	1.080	0.935	2.545
25	1.325	1.688	1.461	3.976
30	1.909	2.430	2.104	5.726
35	2.598	3.308	2.864	7.793
40	3.393	4.320	3.741	10.18
50	5.301	6.750	5.846	15.90
60	7.634	9.720	8.418	22.90
80	13.572	17.280	14.965	40.72
100	21.206	27.000	23.383	63.62

Flat bar, kg/m

Width \ thickness, mm	2	3	4	5	6	8	10
15	0.081	0.122	0.162	0.203	0.243	0.324	0.405
20	0.108	0.162	0.216	0.270	0.324	0.432	0.540
25	0.135	0.203	0.270	0.338	0.405	0.540	0.675
30	0.162	0.243	0.324	0.405	0.486	0.648	0.810
40	0.216	0.324	0.432	0.540	0.648	0.864	1.080
50	0.270	0.405	0.540	0.675	0.810	1.080	1.350
60	0.324	0.486	0.648	0.810	0.972	1.296	1.620
80	0.432	0.648	0.864	1.080	1.296	1.728	2.160
100	0.540	0.810	1.080	1.350	1.620	2.160	2.700

Round tube

Outside Ø × wall, mm	kg/m	Section, mm²	6 m length, kg
10 × 1	0.076	28	0.458
12 × 1	0.093	35	0.560
16 × 1	0.127	47	0.763
20 × 1.5	0.235	87	1.412
20 × 2	0.305	113	1.832
25 × 1.5	0.299	111	1.794
25 × 2	0.390	145	2.341
30 × 2	0.475	176	2.850
32 × 2	0.509	188	3.054
40 × 2	0.645	239	3.868
40 × 3	0.942	349	5.649
50 × 2	0.814	302	4.886
50 × 3	1.196	443	7.176
60 × 3	1.450	537	8.703
80 × 3	1.959	726	11.76
100 × 3	2.468	914	14.81

Square and rectangular tube

Size, mm	kg/m	Section, mm²	6 m length, kg
15 × 15 × 1.5	0.219	81	1.312
20 × 20 × 1.5	0.300	111	1.798
20 × 20 × 2	0.389	144	2.333
25 × 25 × 2	0.497	184	2.981
30 × 30 × 2	0.605	224	3.629
40 × 40 × 2	0.821	304	4.925
40 × 40 × 3	1.199	444	7.193
50 × 50 × 2	1.037	384	6.221
50 × 50 × 3	1.523	564	9.137
60 × 60 × 3	1.847	684	11.08
80 × 80 × 3	2.495	924	14.97
100 × 100 × 4	4.147	1536	24.88
30 × 20 × 2	0.497	184	2.981
40 × 20 × 2	0.605	224	3.629
50 × 25 × 2	0.767	284	4.601
50 × 30 × 2	0.821	304	4.925
60 × 30 × 2	0.929	344	5.573
60 × 40 × 2	1.037	384	6.221
80 × 40 × 2	1.253	464	7.517
80 × 40 × 3	1.847	684	11.08
100 × 50 × 3	2.333	864	14.00
120 × 60 × 3	2.819	1044	16.91

Equal angle

Size, mm	kg/m	Section, mm²	6 m length, kg
15 × 15 × 2	0.151	56	0.907
20 × 20 × 2	0.205	76	1.231
20 × 20 × 3	0.300	111	1.798
25 × 25 × 2	0.259	96	1.555
25 × 25 × 3	0.381	141	2.284
30 × 30 × 3	0.462	171	2.770
40 × 40 × 3	0.624	231	3.742
40 × 40 × 4	0.821	304	4.925
50 × 50 × 4	1.037	384	6.221
50 × 50 × 5	1.283	475	7.695
60 × 60 × 5	1.553	575	9.315
80 × 80 × 6	2.495	924	14.97
100 × 100 × 8	4.147	1536	24.88

Tubes and angles are worked out with sharp corners. Extruded sections have small radii and weigh slightly differently: for anything ordered by weight, the extruder’s catalogue governs.

Sheet and plate by alloy, kg/m²

Thickness, mm	1050A	3003	5052	5083	5754	6082	7075
0.5	1.36	1.37	1.34	1.33	1.33	1.35	1.41
0.8	2.17	2.18	2.14	2.12	2.13	2.16	2.25
1	2.71	2.73	2.68	2.65	2.66	2.70	2.81
1.2	3.25	3.28	3.22	3.18	3.19	3.24	3.37
1.5	4.07	4.10	4.02	3.98	3.99	4.05	4.22
2	5.42	5.46	5.36	5.30	5.32	5.40	5.62
2.5	6.78	6.83	6.70	6.63	6.65	6.75	7.03
3	8.13	8.19	8.04	7.95	7.98	8.10	8.43
4	10.84	10.92	10.72	10.60	10.64	10.80	11.24
5	13.55	13.65	13.40	13.25	13.30	13.50	14.05
6	16.26	16.38	16.08	15.90	15.96	16.20	16.86
8	21.68	21.84	21.44	21.20	21.28	21.60	22.48
10	27.10	27.30	26.80	26.50	26.60	27.00	28.10
12	32.52	32.76	32.16	31.80	31.92	32.40	33.72
15	40.65	40.95	40.20	39.75	39.90	40.50	42.15
20	54.20	54.60	53.60	53.00	53.20	54.00	56.20
25	67.75	68.25	67.00	66.25	66.50	67.50	70.25

Round bar in inches, pounds per foot (6061)

Diameter, in	lb/ft	kg/m	12 ft bar, lb
1/4	0.057	0.086	0.69
3/8	0.129	0.192	1.55
1/2	0.230	0.342	2.76
5/8	0.359	0.534	4.31
3/4	0.517	0.770	6.21
1	0.919	1.368	11.0
1 1/4	1.436	2.138	17.2
1 1/2	2.068	3.078	24.8
2	3.677	5.472	44.1
3	8.274	12.313	99.3

Each size opens the calculator above with it, for any length, quantity or alloy.

How this is calculated

weight per metre (kg/m) = section area (mm²) × density (kg/m³) / 1 000 000 sheet (kg/m²) = thickness (mm) × density (kg/m³) / 1000 at 2700 kg/m³ kg/m = mm² × 0.0027 kg/m² = mm × 2.7

Any extrusion weighs its section area times the density, however complex its shape: a window profile of 450 mm² in 6060 weighs 450 × 0.0027 = 1.215 kg/m. The area is on the die drawing or in the system’s catalogue; the calculator above covers the plain shapes.

What this page does not do

No corner radii. Extruded and drawn sections have them, so a real tube or angle differs from these figures by a few per cent; the extruder’s or mill’s table governs.
Nominal sizes. Wall and thickness tolerances, anodising and paint change the real weight a little.
No strength. The alloy and temper decide what a section carries; this is weight only.

Questions people ask

How much does aluminium weigh per metre?: Its section area in mm² × 0.0027 kg, for 6060, 6061, 6063 and 6082 (2700 kg/m³). A 20 mm round bar weighs 0.848 kg/m, a 40 × 40 × 2 mm square tube 0.821 kg/m and a 50 × 5 mm flat bar 0.675 kg/m.
Is 7075 heavier than 6061 or 6082?: Yes, by 4.1 %: the data sheets give 2810 kg/m³ for 7075 and 2700 for 6061 and 6082. The 5000 series are lighter: 5754 at 2660 and 5083 at 2650 kg/m³.
How much does a sheet of aluminium weigh?: Its thickness in mm × 2.70 kg/m² in 6082, × 2.66 in 5754 and × 2.71 in 1050A. A 1250 × 2500 × 2 mm sheet weighs 16.63 kg in 5754 and 16.88 kg in 6082.