Technical Info :- Round Bar

 

   Round Bar

Theoritic Weight of Stainless Steel Round Bars
Size (mm) Weight kgs/ meter Size (mm) Weight kgs/ meter
2 0.025 16 1.595
3 0.056 17 1.801
4 0.100 18 2.019
5 0.156 19 2.250
6 0.224 20 2.493
7 0.305 21 2.748
8 0.399 22 3.016
9 0.505 23 3.297
10 0.623 24 3.590
11 0.754 25 3.895
12 0.897 26 4.213
13 1.053 28 4.886
14 1.221 30 5.609
15 1.402 32 6.382
34 7.204 85 45.026
35 7.634 90 50.479
36 8.077 95 56.244
38 8.999 100 62.320
40 9.971 105 68.708
45 12.620 110 75.407
50 15.580 115 82.418
55 18.852 120 89.741
58 20.964 125 97.375
60 22.435 130 105.321
65 26.330 135 113.578
70 30.537 140 122.147
75 35.055 145 131.028
80 39.885 150 140.220

Conversion of Inch to millimeter and their corresponding weight
Inch Inch (Dec) Size (mm) Weight kgs/ meter
1/8" 0.125 3.175 0.063
3/16" 0.188 4.763 0.141
1/4" 0.250 6.350 0.251
5/16" 0.313 7.938 0.393
3/8" 0.375 9.525 0.565
7/16" 0.438 11.113 0.770
1/2" 0.500 12.700 1.005
5/8" 0.625 15.875 1.571
3/4" 0.750 19.050 2.262
7/8" 0.875 22.225 3.078
1" 1.000 25.400 4.021
1-1/8" 1.125 28.575 5.089
1-3/16"    1.188 30.163 5.670 3-3/16"    3.188
1-1/4" 1.250 31.750 6.282
1-5/16"    1.313 33.338 6.926 3-5/16"    3.313
1-3/8" 1.375 34.925 7.602
1-7/16"    1.438 36.513 8.308 3-7/16"    3.438
1-1/2" 1.500 38.100 9.046
1-5/8" 1.625 41.275 10.6171
1-3/4" 1.750 44.450 12.313
1-7/8" 1.875 47.625 14.135
2" 2.000 50.800 16.083
2-1/8" 2.125 53.975 18.156
2-3/16"    2.188 55.563 19.239 4-3/16"    4.188
2-1/4" 2.250 57.150 20.354
2-5/16"    2.313 58.738 21.501 4-5/16"    4.313
2-3/8" 2.375 60.325 22.679
2-7/16"    2.438 61.913 23.888 4-7/16"    4.438
2-1/2" 2.500 63.500 25.129
2-5/8" 2.625 66.675 27.705
2-3/4" 2.750 69.850 30.406
2-7/8" 2.875 73.025 33.233
3" 3.000 76.200 36.186
3-1/8" 3.125 79.375 39.264
80.963 40.850 5-3/16"    5.188 131.763 
3-1/4" 3.250 82.550 42.468
84.138 44.117 5-5/16"    5.313 134.938 
3-3/8" 3.375 85.725 45.798
87.313 47.509 5-7/16"    5.438 138.113 
3-1/2" 3.500 88.900 49.253
3-5/8" 3.625 92.075 52.834
3-3/4" 3.750 95.250 56.540
3-7/8" 3.875 98.425 60.372
4" 4.000 101.600   64.330
4-1/8" 4.125 104.775  68.414
106.363 70.503 - -
4-1/4" 4.250 107.950   72.623
109.538   74.774 - -
4-3/8" 4.375 111.125   76.958
112.713   79.172 - -
4-1/2" 4.500 114.300   81.418
4-5/8" 4.625 117.475   86.004
4-3/4" 4.750 120.650   90.716
4-7/8" 4.875 123.825   95.553
5" 5.000 127.000   100.516
5-1/8" 5.125 130.175   105.605
 108.196 - - -
5-1/4" 5.250 133.350   110.819
 113.473 - - -
5-3/8" 5.375 136.525   116.159
 118.876 - - -
5-1/2" 5.500 139.700   121.624
5-5/8" 5.625 142.875   127.215
5-3/4" 5.750 146.050   132.932
5-7/8" 5.875 149.225   138.775
6" 6.000 152.400   144.743

Theoritic Weight of Stainless Steel Hex & Square Bars
Size (mm) Weight (Hex) kg/ meter Weight (Square) kg/ meter

5

0.172

 0.197

6

0.248

 0.283

8

0.441

 0.504

10

0.689

 0.787

12

0.992

1.134

14

1.350

1.543

15

1.550

1.771

16

1.763

 2.015

17

1.991

2.275

18

2.232

2.551

19

2.487

2.842

20

 2.755

3.149

21

3.038

3.472

22

3.334

3.810

24

 3.967

4.534

25

 4.305

4.920

27

 5.021

5.739

28

 5.400

6.172

30

 6.199

 7.085

32

 7.053

 8.061

34

7.963

 9.100

35

8.438

9.643

36

8.927

 10.202

38

9.946

11.367

40

11.021

12.595

42

12.150

13.886

45

13.948

 15.941

50

17.220

19.680



Tolerance Chart for SS Round Bars as per ISO
Size Range (mm) h8 h9 h10 h11 h12 h13 K12/K13
Upto 6 -0.018 -0.030 -0.048 -0.075 -0.120 -0.180 -
Over 6 upto 10 -0.022 -0.036 -0.058 -0.090 -0.150 -0.220 -
Over 10 upto 18 -0.027 -0.043 -0.070 -0.110 -0.180 -0.270 -
Over 18 upto 30 -0.033 -0.052 -0.084 -0.130 -0.210 -0.330 +0.10/+0.15
Over 30 upto 50 -0.039 -0.062 -0.100 -0.160 -0.250 -0.390 +0.15/+0.20
Over 50 upto 80 -0.046 -0.074 -0.120 -0.190 -0.300 -0.460 +0.20/+0.25
Over 80 upto 120 -0.054 -0.087 -0.140 -0.220 -0.350 -0.540 +0.25/+0.30



Tolerance Chart For SS Round Bars as per ASTM A 484
Cold Finished Round Bars

Size Range in Inch Tolerance
1/16” to less than 5/16” +/- 0.001”
5/16” to less than 1/2” +/- 0.0015”
1/2” to less than 1” +/- 0.002”
1” to less than 1-1/2” +/- 0.0025”
1-1/2” to less than 4” +/- 0.003”

Cold Finished Hexagon & Square Bars
 
Size Range in Inch Tolerance
1/16” to less than 5/16” +/- 0.002”
5/16” to less than 1/2” +/- 0.003”
1/2” to less than 1” +/- 0.004”
1” to less than 2” +/- 0.006”
2” to less than 3” +/- 0.008”
3" and over +/- 0.010”
 
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