Tabela de peso de barra redonda – calcule com facilidade

Round bar weight table – calculate with ease

Round bar weight table – calculate with ease

Here is the formula and example in table format to calculate round bar weight

Formula Description
𝑃 = 𝜋 × 𝐷 two × 𝐿 × 𝜌 Formula to calculate weight 𝑃 from a round bar
𝑃 Bar weight in kg
𝐷 Bar diameter in meters
𝐿 Bar length in meters
𝜋 Pi value, approximately 3.14159
𝜌 Bar material density in kg/m³ (for steel, approximately 7850 kg/m³)

Example:

  • Diameter 𝐷 = 20 = 0.02m
  • Length 𝐿 = 1
  • Density 𝜌 = 7850 kg/m³
𝑃 = 𝜋 × ( 0.02 ) two × 1 × 7850 Round bar weight calculation
𝑃 = 3.14159 × 0.0004 × 1 × 7850 𝑃 = 9.8696 × 7850
𝑃 = 3.14159 × 3.14 × 7850 𝑃 = 24661.18

Therefore, the weight of the round steel bar with a diameter of 20 mm and a length of 1 meter would be approximately 24.66 kg.

Round Bar Weight Table

The following table lists the theoretical weight of the 1-310mm round bar in kg/m.

Note
(mm)		 Theoretical weight
(kg/m)
5.5 0.186
6 0.222
6.5 0.26
7 0.302
8 0.395
9 0.499
10 0.617
11 0.746
12 0.888
13 1.04
14 1.21
15 1.39
16 1.58
17 1.78
18 two
19 2.23
20 2.47
21 2.72
22 2.98
23 3.26
24 3.55
25 3.85
26 4.17
27 4.49
28 4.83
29 5.18
30 5.55
31 5.92
32 6.31
33 6.71
34 7.13
35 7.55
36 7.99
38 8.9
40 9.86
42 10.9
45 12.5
48 14.2
50 15.4
53 17.3
55 18.6
56 19.3
58 20.7
60 22.2
63 24.5
65 26
68 28.5
70 30.2
75 34.7
80 39.5
85 44.5
90 49.9
95 55.6
100 61.7
105 68
110 74.6
115 81.5
120 88.8
125 96.3
130 104
135 112
140 121
145 130
150 139
155 148
160 158
165 168
170 178
180 200
190 223
200 247
210 272
220 298
250 385
260 417
270 449
280 483
290 518
300 555
310 592

HR Round Bar Weight Chart

No. Item Unit Weight
1 Φ5.5 kg/m 0.186
two Φ6 kg/m 0.222
3 Φ6.5 kg/m 0.26
4 Φ7 kg/m 0.302
5 Φ8 kg/m 0.395
6 Φ9 kg/m 0.499
7 Φ10 kg/m 0.617
8 Φ11 kg/m 0.476
9 Φ12 kg/m 0.888
10 Φ13 kg/m 1.04
11 Φ14 kg/m 1.21
12 Φ15 kg/m 1.39
13 Φ16 kg/m 1.58
14 Φ17 kg/m 1.78
15 Φ18 kg/m two
16 Φ19 kg/m 2.23

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