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Metal weight

Flat bar weight table

Flat bar is used for base plates, stiffeners, ironwork, earthing and fabrication. Below is the theoretical weight of 142 common sizes, in steel with a density of 7.85 g/cm³.

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Values in kg/m. Click a value for the detailed page of that size.

Width \ thickness	3 mm	4 mm	5 mm	6 mm	8 mm	10 mm	12 mm	15 mm	20 mm	25 mm	30 mm
12	0.28	0.38
15	0.35	0.47	0.59	0.71
16	0.38	0.50	0.63	0.75
20	0.47	0.63	0.79	0.94	1.26
25	0.59	0.79	0.98	1.18	1.57	1.96
30	0.71	0.94	1.18	1.41	1.88	2.36	2.83
35	0.82	1.10	1.37	1.65	2.20	2.75	3.30
40	0.94	1.26	1.57	1.88	2.51	3.14	3.77	4.71
45	1.06	1.41	1.77	2.12	2.83	3.53	4.24	5.30
50	1.18	1.57	1.96	2.36	3.14	3.93	4.71	5.89	7.85
60	1.41	1.88	2.36	2.83	3.77	4.71	5.65	7.07	9.42
70	1.65	2.20	2.75	3.30	4.40	5.50	6.59	8.24	10.99	13.74
80	1.88	2.51	3.14	3.77	5.02	6.28	7.54	9.42	12.56	15.70	18.84
90	2.12	2.83	3.53	4.24	5.65	7.07	8.48	10.60	14.13	17.66	21.20
100	2.36	3.14	3.93	4.71	6.28	7.85	9.42	11.78	15.70	19.63	23.55
120	2.83	3.77	4.71	5.65	7.54	9.42	11.30	14.13	18.84	23.55	28.26
150		4.71	5.89	7.07	9.42	11.78	14.13	17.66	23.55	29.44	35.33
200			7.85	9.42	12.56	15.70	18.84	23.55	31.40	39.25	47.10

Calculation formula

kg/m = width × thickness × 0.00785, in mm.

Working out a whole order?

Put the products in the calculator’s materials list and see the total weight and cost of the order.

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