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Indian Standard Flange Beams per. IS 808

Engineering Standard Materials
Structural Shapes Table and Standards

Medium Weight, Junior Weight and Light Weight I-Beam per. IS 808

Nominal dimensions, mass and sectional properties of Indian Standard Flange Beams. This standard covers the nominal dimensions, mass and sectional properties of hot rolled sloping flange beam.

I-Beam per. IS 808

 

Desig.
Depth
of
Section
h
mm
Width
of
Section
b
mm
Thickness of
Root
Radius
r1
mm
Toe
Radius
r2
Flange
Taper
a
degrees
Depth
between
fillets
d
mm
Second
Moment
of
Area
Web
s
mm
Flange
t
mm
Axis x-x
Ix
cm4
Axis y-y
Iy
cm4
ISMB 225
225
110
6.5
11.8
12
6
8
173.3
3442
218
ISMB 250
250
125
6.9
12.5
13
6.5
8
194.1
5132
335
ISMB 300
300
140
7.7
13.1
14
7
8
240.2
8986
486
ISMB 350
350
140
8.1
14.2
14
7
8
288
13632
538
ISMB 400
400
140
8.9
16
14
7
8
334.4
20456
622
ISMB 450
450
150
9.4
17.4
15
7.5
8
379.2
30391
834
ISMB 500
500
180
10.2
17.2
17
8.5
8
424.1
45220
1370
ISMB 550
550
190
11.2
19.3
18
9
8
467.5
64889
1834
ISMB 600
600
210
12
20.3
20
10
8
510.7
90260
2574
ISJB 150
150
50
3
4.6
5
1.5
1.5
130.4
322
9.22
ISJB 175
175
50
3.2
4.8
5
1.5
1.5
155
480
9.65
ISJB 200
200
60
3.4
5
5
1.5
1.5
179.5
781
17.3
ISJB 225
225
80
3.7
5
6.5
1.5
1.5
201.3
1310
40.5
ISLB 75
75
50
3.7
5
6.5
2
1.5
51.7
72.7
10
ISLB 100
100
50
4
6.4
7
3
1.5
73
168
12.7
ISLB(P) 100
100
50
4.3
7
8
3
1.5
69.8
182
14
ISLB125
125
75
4.4
6.5
8
3
1.5
95.5
407
43.4
ISLB150
150
80
4.8
6.8
9.5
3
1.5
116.9
688
55.2
ISLB175
175
90
5.1
6.9
9.5
3
1.5
141.6
1095
79.6
ISLB(P) 175
175
80
5.2
7.7
9.5
3
6
138.6
1068
57.3
ISLB 200
200
100
5.4
7.3
9.5
3
1.5
165.7
1695
115
ISLB(P) 200
220
100
5.6
8
9.5
3
6
181.9
2242
113
ISLB 225
225
100
5.8
8.6
12
6
8
180.3
2501
113
ISLB 250
250
125
6.1
8.2
13
6.5
8
202.6
3718
193
ISLB 275
275
140
6.4
8.8
14
7
8
223.7
5375
287
ISLB 300
300
150
6.7
9.4
15
7.5
8
245.1
7334
376
ISLB(P) 300
300
140
7
11.6
15
7.5
8
241.4
8134
414
ISLB 325
325
165
7
9.8
16
8
8
266.5
9876
511
ISLB 350
350
165
7.4
11.4
16
8
8
288.3
13160
632
ISLB 400
400
165
8
12.5
16
8
8
336.2
19304
716
ISLB 450
450
170
8.6
13.4
16
8
8
384
27540
853
ISLB 500
500
180
9.2
14.1
17
8.5
8
430.2
38578
1064
ISLB 550
550
190
9.9
15
18
9
8
476
53168
1335
ISLB 600
600
210
10.5
15.5
20
10
8
520.2
72869
1822
ISWB 150
150
100
5.4
7
8
4
6
116.6
839
94.8
ISWB 175
175
125
5.8
7.4
8
4
6
139.5
1509
189
ISWB 200
200
140
6.1
9
9
4.5
6
158.8
2624
329
ISWB 200*
203
152
8.9
16.5
15.5
7.6
8
133
4776
810
ISWB 225
225
150
6.4
9.9
9
4.5
6
181.4
3920
449
ISWB 250
250
200
6.7
9
10
5
6
203.8
5943
857
ISWB 300
300
200
7.4
10
11
5.5
6
250.1
9821
990
ISWB 350
350
200
8
11.4
12
6
6
295.5
15524
1176
ISWB 400
400
200
8.6
13
13
6.5
6
340.5
23426
1388
ISWB 450
450
200
9.2
15.4
15
7
6
382.2
35141
1707
ISWB 500
500
250
9.9
14.7
15
7.5
6
431
52287
2988
ISWB 550
550
250
10.5
17.6
16
8
6
473.4
74912
3741
ISWB 600
600
250
11.2
21.3
17
8.5
6
514.2
106202
4703
ISWB 600*
600
250
11.8
23.6
18
9
6
507.9
115612
5298

 

Desig.
Radius
of
Gyration
Elastic
Modulus
Plastic
Modulus
Buckling
Parameter
u
Torsional
Index
x
Warping
Constant
H
dm6
Torsional
Constant
Inertia
J
cm4
Area
of
Section
A
cm2
Axis x-x
rx
cm
Axis y-y
ry
cm
Axis x-x
Zx
cm3
Axis y-y
Zy
cm3
Axis x-x
Sx
cm3
Axis y-y
Sy
cm3
ISMB 225
9.31
2.34
306
39.7
348
66.3
0.892
17.8
0.0248
18.3
39.7
ISMB 250
10.4
2.65
411
53.5
466
89.7
0.893
18.5
0.0472
25
47.6
ISMB 300
12.4
2.88
599
69.5
681
118
0.887
21.3
0.1
34.1
58.7
ISMB 350
14.3
2.84
779
76.8
890
130
0.882
23.8
0.152
42.4
66.7
ISMB 400
16.1
2.82
1023
88.9
1176
150
0.877
25.1
0.229
58.8
78.5
ISMB 450
18.1
3.01
1351
111
1553
187
0.876
26.3
0.39
79.9
92.3
ISMB 500
20.2
3.52
1809
152
2075
260
0.874
28.5
0.798
102
111
ISMB 550
22.2
3.73
2360
193
2712
328
0.873
28.4
1.29
148
132
ISMB 600
24.2
4.09
3009
245
3455
418
0.873
29.2
2.16
195
154
ISJB 150
5.98
1.01
42.9
3.69
49.6
5.96
0.864
33.6
0.000487
0.54
9.01
ISJB 175
6.84
0.969
54.9
3.86
64.2
6.32
0.853
38.4
0.000699
0.647
10.3
ISJB 200
7.86
1.17
78.1
5.76
90.9
9.35
0.854
42.3
0.00164
0.862
12.6
ISJB 225
8.97
1.58
116
10.1
134
16.3
0.859
44.9
0.0049
1.25
16.3
ISLB 75
3.07
1.14
19.4
4
22.4
6.4
0.877
12.9
0.000123
0.725
7.71
ISLB 100
4.06
1.12
33.6
5.09
38.9
8.2
0.884
14.5
0.000278
1.36
10.2
ISLB(P) 100
4.04
1.12
36.3
5.61
42.3
9.07
0.886
13
0.000303
1.83
11.1
ISLB125
5.19
1.69
65.1
11.6
73.9
18.4
0.883
17.7
0.00152
2.17
15.1
ISLB150
6.17
1.75
91.7
13.8
105
22.1
0.88
20
0.00283
2.96
18.1
ISLB175
7.17
1.93
125
17.7
143
28.3
0.876
23.4
0.00562
3.53
21.3
ISLB(P) 175
7.1
1.65
122
14.3
140
23.9
0.878
20.9
0.00401
4.36
21.2
ISLB 200
8.19
2.14
170
23.1
193
36.9
0.875
25.8
0.0107
4.53
25.3
ISLB(P) 200
8.95
2.01
204
22.6
233
37.9
0.875
25.5
0.0127
6.21
28
ISLB 225
9.14
1.94
222
22.6
255
39.2
0.877
23.2
0.0132
8.33
29.9
ISLB 250
10.2
2.33
297
31
339
55.4
0.876
25.4
0.0282
10.3
35.5
ISLB 275
11.3
2.61
391
41
444
73.5
0.878
26
0.0508
14.1
42
ISLB 300
12.4
2.8
489
50.2
554
90
0.879
26.7
0.0794
18.2
48.1
ISLB(P) 300
12.4
2.8
542
59.2
615
102
0.886
23.4
0.0861
25.8
52.9
ISLB 325
13.4
3.05
608
61.9
688
112
0.88
27.4
0.127
23.2
54.9
ISLB 350
14.5
3.17
752
76.6
851
135
0.882
27
0.181
31.8
63
ISLB 400
16.3
3.15
965
86.8
1099
151
0.877
29.3
0.269
40.5
72.4
ISLB 450
18.2
3.2
1224
100
1401
175
0.872
31.5
0.406
51
83.1
ISLB 500
20.1
3.34
1543
118
1773
207
0.868
33.5
0.628
64.5
95.5
ISLB 550
22
3.48
1933
141
2228
246
0.865
34.8
0.955
83.2
110
ISLB 600
24
3.79
2429
174
2799
307
0.864
36.1
1.56
107
127
ISWB 150
6.22
2.09
112
19
127
31.9
0.878
18.5
0.00485
4.13
21.7
ISWB 175
7.33
2.59
173
30.2
194
51.3
0.878
20.3
0.0133
6.13
28.1
ISWB 200
8.45
2.99
262
47
294
78.7
0.886
19.7
0.03
11
36.7
ISWB 200*
8.48
3.49
471
107
539
175
0.891
10.7
0.0704
64.7
66.4
ISWB 225
9.52
3.22
348
59.8
390
99.8
0.888
20.6
0.0519
15.1
43.2
ISWB 250
10.7
4.06
475
85.7
528
150
0.882
23.2
0.124
18
52
ISWB 300
12.7
4.02
655
99
731
171
0.883
26
0.208
24.5
61.3
ISWB 350
14.6
4.03
887
118
995
200
0.883
27.7
0.337
34.7
72.5
ISWB 400
16.6
4.04
1171
139
1320
234
0.882
28.8
0.52
49.1
85
ISWB 450
18.6
4.1
1562
171
1764
284
0.884
28.4
0.806
76.2
101
ISWB 500
20.8
4.96
2091
239
2353
407
0.881
31.6
1.76
91.7
121
ISWB 550
22.9
5.11
2724
299
3066
500
0.885
30.3
2.65
141
143
ISWB 600
25
5.25
3540
376
3987
619
0.889
28.4
3.94
227
170
ISWB 600*
25
5.35
3854
424
4342
693
0.892
25.7
4.4
297
185

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