Weight of One Linear Meter of Steel Angle Bar

A steel angle bar is a shaped rolled metal product that has an L-shaped cross-section. It is widely used in various industries and household applications due to its structural rigidity, low metal consumption, strength, and good weldability. To ensure the reliability of products and metal structures, correctly calculate the weight of structural elements, determine load stress, reduce logistics costs, and minimize waste volume, it is necessary to know how much 1 linear meter of a metal angle bar weighs. This parameter depends not only on the cross-sectional dimensions but also on the density of the material from which it is made. For example, there is no doubt that an aluminum angle bar will weigh less than a steel one.

According to DSTU 2251, the modern range of steel angle bars includes:

• hot-rolled equal-leg;
• hot-rolled equal-leg;
• of increased or standard strength;
• non-heat-treated;
• normalized, and others.

Standards regulate various product parameters. There is a fairly large list, in addition to national standards, of international regulations such as EN 10056 and EN 10025. It is worth noting that the theoretical weight of angle bars with the same dimensions in these documents may differ due to design features, corner radii, and calibration tolerances.

Formula for Calculating the Theoretical Weight of an Angle Bar

Calculating the weight characteristics of metal products and structures considering their shape and size is a task for engineers. Usually, handbook values are used for this, but sometimes such information is unavailable. Therefore, the weight of one linear meter of an angle bar is calculated mathematically.

For an unequal-leg angle bar:
ρu = [(A+B–t)·t + (1–π/4)·(r²_inner – 2·r²_outer)]·ρ,
where A is the width of the larger flange; B is the width of the smaller flange; t is the flange thickness; r_inner is the inner radius; r_outer is the outer radius; ρ is the material density.
Steel density ρ = 7850 kg/m³:
ρu = 0.007850·(A+B–t) + 0.001686·(r²_inner – 2·r²_outer), (kg/m),
where all dimensions must be in mm.
According to ISO standards:
R_outer = r_inner/2,
ρu = 0.007850·(A+B–t) + 0.0008423·r²_inner.

At a density of 7850 kg/m³:
ρu = 0.007850·(A+B–t) + 0.0008423·r²_inner, (kg/m),
all dimensions in mm.

For an equal-leg angle bar (B = A):
ρu = [(2·A–t)·t + (1–π/4)·(r²_inner – 2·r²_outer)]·ρ,
where A is the flange width; t is the flange thickness; r_inner is the inner radius; r_outer is the outer radius; ρ is the material density.
At ρ = 7850 kg/m³:
ρu = 0.007850·(2·A–t) + 0.001686·(r²_inner – 2·r²_outer), (kg/m),
with all dimensions in mm.
ISO assumption:
R_outer = r_inner/2,
therefore:
ρu = (2·A–t)·t + ((4–π)/8)·(r²_inner – 2·r²_outer)·ρ,
ρ = 7850 kg/m³:
ρu = 0.007850·(2·A–t) + 0.0008423·r²_inner, (kg/m),
all dimensions in mm.

These calculations give only an approximate result due to flange and center radius rounding, whose shape and size are often ignored. Product weight also depends on geometric tolerances, which must comply with standards.

Conclusions

It is possible to calculate the approximate weight of a metal angle bar mathematically, but this method has a significant margin of error. In addition, it is labor-intensive. For more accurate results, reliable reference information should be used.

Table of equal-leg angle bar weights according to DSTU 2251

Dimensions AxAxt, mm	r inner, mm	r outer, mm	Weight of 1 m angle bar, kg	Meters per Ton
20х20х3	3,5	1,2	0,887	1127,27
20х20х4	3,5	1,2	1,146	872,60
25х25х3	3,5	1,2	1,123	890,47
25х25х4	3,5	1,2	1,466	684,93
25х25х5*	3,5	1,2	1,782	561,17
28х28х3	4	1,3	1,269	788,02
30х30х3	4	1,3	1,364	733,14
30х30х4	4	1,3	1,785	561,80
30х30х5*	4	1,3	2,184	458,72
32х32х3	4,5	1,5	1,463	683,53
32х32х4	4,5	1,5	1,911	523,29
35х35х3	4,5	1,5	1,604	623,44
35х35х4	4,5	1,5	2,099	476,42
35х35х5	4,5	1,5	2,578	387,90
40х40х3	5	1,7	1,846	541,71
40х40х4	5	1,7	2,419	413,39
40х40х5	5	1,7	2,976	336,02
40х40х6*	5	1,7	3,518	284,25
45х45х3	5	1,7	2,081	480,54
45х45х4	5	1,7	2,733	365,90
45х45х5	5	1,7	3,369	296,82
45х45х6*	5	1,7	3,989	250,69
50х50х3	5,5	1,8	2,324	430,29
50х50х4	5,5	1,8	3,054	327,44
50х50х5	5,5	1,8	3,769	265,32
50х50х6	5,5	1,8	4,467	223,86
50х50х7*	5,5	1,8	5,15	194,17
50х50х8*	5,5	1,8	5,818	171,88
56х56х4	6	2	3,438	290,87
56х56х5	6	2	4,247	235,46
56х56х6**	6	2	5,041	198,41
60х60х4	7	2,3	3,707	269,76
60х60х5	7	2,3	4,578	218,44
60х60х6	7	2,3	5,434	184,03
60х60х8	7	2,3	7,098	140,88
60х60х10	7	2,3	8,71	114,94
63х63х4	7	2,3	3,896	256,67
63х63х5	7	2,3	4,814	207,73
63х63х6	7	2,3	5,717	174,92
70х70х4,5	8	2,7	4,872	205,34
70х70х5	8	2,7	5,382	185,80
70х70х6	8	2,7	6,395	156,37
70х70х7	8	2,7	7,392	135,28
70х70х8	8	2,7	8,373	119,43
70х70х10*	8	2,7	10,299	97,18
75х75х5	9	3	5,797	172,50
75х75х6	9	3	6,889	145,16
75х75х7	9	3	7,964	125,57
75х75х8	9	3	9,024	110,82
75х75х9	9	3	10,079	99,30
80х80х5,5	9	3	6,777	147,56
80х80х6	9	3	7,361	135,87
80х80х7	9	3	8,513	117,47
80х80х8	9	3	9,652	103,61
80х80х10*	9	3	11,888	84,12
80х80х12*	9	3	14,057	71,17
90х90х6	10	3,3	8,327	120,09
90х90х7	10	3,3	9,638	103,76
90х90х8	10	3,3	10,939	91,49
90х90х9	10	3,3	12,218	81,85
90х90х10*	10	3,3	13,487	74,15
90х90х12*	10	3,3	15,966	62,66
100х100х6,5	12	4	10,069	99,40
100х100х7	12	4	10,799	92,60
100х100х8	12	4	12,258	81,63
100х100х10	12	4	15,16	66,23
100х100х12	12	4	17,95	55,87
100х100х14	12	4	20,63	48,47
100х100х15	12	4	21,97	45,52
100х100х16	12	4	23,34	42,92
110х110х7	12	4	11,89	84,10
110х110х8	12	4	13,57	74,07
120х120х8	14	4,6	14,74	67,84
120х120х10	14	4,6	18,23	54,87
120х120х12	14	4,6	21,65	46,19
120х120х15	14	4,6	26,67	37,52
125х125х8	14	4,6	15,46	64,68
125х125х9	14	4,6	17,29	57,84
125х125х10	14	4,6	19,15	52,36
125х125х12	14	4,6	22,68	44,09
125х125х14	14	4,6	26,23	38,17
125х125х16	14	4,6	29,65	33,73
140х140х9	14	4,6	19,41	51,52
140х140х10	14	4,6	21,45	46,62
140х140х12	14	4,6	25,53	39,22
150х150х10	14	4,6	23,02	43,44
150х150х12	14	4,6	27,39	36,51
150х150х15	14	4,6	33,82	29,57
150х150х18	14	4,6	40,11	24,93
160х160х10	16	5,3	24,67	40,54
160х160х11	16	5,3	27,02	37,01
160х160х12	16	5,3	29,35	34,07
160х160х14	16	5,3	33,97	29,44
160х160х16	16	5,3	38,52	25,96
160х160х18	16	5,3	43,01	23,25
160х160х20	16	5,3	47,44	21,08
180х180х11	16	5,3	30,47	32,82
180х180х12	16	5,3	33,12	30,19
180х180х15*	16	5,3	40,96	24,41
180х180х18*	16	5,3	48,66	20,55
180х180х20*	16	5,3	53,72	18,62
200х200х12	18	6	36,97	27,05
200х200х13	18	6	39,92	25,05
200х200х14	18	6	42,85	23,34
200х200х16	18	6	48,65	20,55
200х200х18*	18	6	54,4	18,38
200х200х20	18	6	60,08	16,64
200х200х24*	18	6	71,26	14,03
200х200х25	18	6	74,02	13,51
200х200х30	18	6	87,56	11,42
220х220х14	21	7	47,42	21,10
220х220х16	21	7	53,83	18,58
250х250х16	24	8	61,55	16,25
250х250х18	24	8	68,86	14,52
250х250х20	24	8	76,11	13,14
250х250х22	24	8	83,31	12,00
250х250х25	24	8	93,97	10,64
250х250х28	24	8	104,59	9,57
250х250х30	24	8	111,44	8,97

Table of unequal-leg angle bar weights according to GOST 8510-86

Shelf Dimensions AхB, mm	Wall Thickness t, mm	Weight of 1 meter of angle bar	Meters per Ton
25х16	3	0,91	1098,93
30х20	3	1,12	892,85
30х20	3	1,46	684,92
32х20	3	1,17	854,73
32х20	4	1,52	657,89
40х25	3	1,48	675,67
40х25	4	1,94	515,46
40х25	5	2,37	421,94
40х30	4	2,26	442,48
40х30	5	2,46	406,54
45х28	3	1,68	595,23
45х28	4	2,24	446,42
50х32	3	1,95	512,82
50х32	4	2,44	409,83
56х36	4	2,81	355,87
56х36	5	3,46	289,01
63х40	4	3,17	315,45
63х40	5	3,91	255,75
63х40	6	4,63	215,98
63х40	8	6,03	165,84
63х50	5	4,36	229,36
65х50	6	5,18	193,05
65х50	7	5,98	167,22
65х50	8	6,77	147,71
70х45	5	4,39	227,78
75х60	5	4,79	208,77
75х60	6	5,69	175,75
75х60	7	6,57	152,21
75х60	8	7,43	134,59
80х50	5	4,49	222,72
80х50	6	5,92	168,92
80х60	6	6,39	156,49
80х60	7	7,39	135,32
80х60	8	8,37	119,47
90х56	5,5	6,17	162,07
90х56	6	6,71	149,03
90х56	8	8,77	114,03
100х63	6	7,53	132,8
100х63	7	8,71	114,81
100х63	8	9,87	101,32
100х63	10	12,14	82,37
100х65	7	8,81	113,51
100х65	8	9,99	100,1
100х65	10	12,38	80,77
110х70	6,5	8,98	111,35
110х70	8	10,93	91,49
125х80	7	11,04	90,58
125х80	8	12,58	79,49
125х80	10	15,47	64,64
125х80	12	18,34	54,53
140х90	8	14,13	70,77
140х90	10	17,46	57,27
160х100	10	19,85	50,38
160х100	12	23,58	42,41
160х100	14	27,26	36,68
160х100	9	17,96	55,68
180х110	10	22,2	45,04
180х110	12	26,43	37,83
200х125	11	27,37	36,54
200х125	12	29,74	33,62
200х125	14	34,43	29,04
200х125	16	39,07	25,6

This material can be used as a reference guide.