square hollow box section structural steel pipes

Hollow Sections are rigid steel structures which have a high strength to weight ratio. Popular applications include stairway railings and overhead bridge constructions. Hollow Sections are also used extensively in building structures. Hollow Sections usually come in 2 standard cross section shapes, namely: Square Hollow Sections Rectangular Hollow Sections Divided according to different materials : Cold Formed Square Hollow Sections Hot Finished Square Hollow Sections

Specifications of Square Hollow Sections pipe

Cold Formed Square Hollow Sections Material Spec: ASTM A500 Gr A ASTM A500 Gr B EN10219 S275JR / JØ / J2H EN10219 S355JR / JØ / J2H

Section Size	Wall Thickness	Unit Weight	Section Area	Moment of Inertia		Radius of Gyration		Moment of Inertia
D x B	t	M	A	Ix Iy		ix iy		Zx Zy
mm	mm	kg/m	cm2	cm4	cm4	cm	cm	cm3	cm3
13 x 13	1.2 1.6	0.400.50	0.510.64	0.100.12	0.100.12	0.450.43	0.45 0.43	0.160.19	0.160.19
16 x 16	1.2 1.6	0.520.67	0.670.85	0.230.27	0.230.27	0.590.57	0.59 0.57	0.290.34	0.290.34
19 x 19	1.2 1.6	0.640.82	0.811.04	0.410.50	0.410.50	0.710.69	0.71 0.69	0.440.53	0.440.53
25 x 25	1.2 1.6 2.3 3.0	0.861.121.531.93	1.101.431.952.48	1.021.261.591.96	1.021.261.591.96	0.960.940.900.89	0.96 0.94 0.90 0.89	0.811.011.271.54	0.811.011.271.54
32 x 32	1.2 1.6 2.3 3.0	1.121.462.022.53	1.421.872.683.26	2.162.753.934.29	2.162.753.934.29	1.241.221.211.15	1.24 1.22 1.21 1.15	1.381.742.462.70	1.381.742.462.70
38 x 38	1.2 1.6 2.3 3.0	1.351.772.473.13	1.722.263.144.04	3.854.916.517.99	3.854.916.517.99	1.491.471.431.41	1.49 1.47 1.43 1.41	2.022.583.424.26	2.022.583.424.26
50 x 50	1.6 2.3 3.0 3.2 4.5 6.0	2.383.344.244.506.01 7.56	3.034.255.405.737.66 9.63	11.7015.9019.3920.4025.22 28.76	11.7015.9019.3920.4025.22 28.76	1.961.931.891.891.81 1.72	1.96 1.93 1.89 1.89 1.81 1.72	4.686.347.758.1610.09 11.50	4.686.347.758.1610.09 11.50
65 x 65	2.3 3.0 4.5 6.0	4.315.528.0410.57	5.517.1610.2413.48	33.8842.4657.4470.34	33.8842.4657.4470.34	2.462.442.372.28	2.46 2.44 2.37 2.28	10.7513.4418.1922.12	10.7513.4418.1922.12
75 x 75	2.3 3.0 3.2 4.5 6.0	5.146.607.019.5512.27	6.558.408.9212.1615.63	57.1071.5075.5098.16119.20	57.1071.5075.5098.16119.20	2.952.912.912.842.76	2.95 2.91 2.91 2.84 2.76	15.2019.0620.1026.1731.78	15.2019.0620.1026.1731.78

 

Section Size	Wall Thickness	Unit Weight	Section Area	Moment of Inertia		Radius of Gyration		Moment of Inertia
D x B	t	M	A	Ix Iy		ix iy		Zx Zy
mm	mm	kg/m	cm2	cm4	cm4	cm	cm	cm3	cm3
100 x 100	2.3 3.0 3.2 4.5 6.0 9.0	6.958.959.5213.1017.00 24.10	8.8511.4012.1316.6721.63 30.67	140.00176.90187.00249.00311.00 408.00	140.00176.90187.00249.00311.00 408.00	3.973.933.933.873.79 3.65	3.973.933.933.873.79 3.65	27.9035.3837.5049.9062.30 81.60	27.9035.3837.5049.9062.30 81.60
125 x 125	2.3 3.0 3.2 4.5 6.0 9.0	8.7511.3112.0016.6121.70 31.10	11.1514.4015.3321.1727.63 39.67	278.02 354.32 376 506 641 865	278.02 354.32 376 506 641 865	4.994.954.954.894.82 4.67	4.994.954.954.894.82 4.67	44.4856.6960.1080.90103 108	44.48 56.69 60.10 80.90 103 108
150 x 150	4.5 6.0 9.0 12.0	20.1026.4038.2047.10	25.6733.6348.6760.10	896 1,150 1,580 1,780	896 1,150 1,580 1,780	5.915.845.695.44	5.915.845.695.44	120153210237	120 153 210 237
175 x 175	6.0 9.0	31.1045.30	39.6357.67	1,8602,600	1,8602,600	6.866.71	6.866.71	213297	213 297
200 x 200	6.0 8.0 9.0 12.0	35.8046.9052.3067.90	45.6359.7966.6786.53	2,8303,6203,9904,980	2,8303,6203,9904,980	7.887.787.737.59	7.887.787.737.59	283362399498	283 362 399 498
250 x 250	6.0 9.0 12.0	45.2066.5086.80	57.6384.67110.50	5,6708,09010,300	5,6708,09010,300	9.929.789.63	9.929.789.63	454647820	454 647 820
300 x 300	6.0 9.0 12.0 16.0	54.7080.60106.00138.00	69.63102.70134.50175.20	9,96014,30018,30023,100	9,96014,30018,30023,100	12.0011.8011.7011.50	12.0011.8011.7011.50	6649561,2201,540	664 956 1,220 1,540
350 x 350	9.0 12.0 16.0	94.70124.00163.00	120.70158.50207.20	23,20029,80037,900	23,20029,80037,900	13.9013.7013.50	13.9013.7013.50	1,3201,7002,160	1,3201,7002,160
400 x 400	9.0 12.0 16.0	109.00143.00188.00	138.70182.50239.20	35,10045,30057,900	35,10045,30057,900	15.9015.8015.60	15.9015.8015.60	1,7502,2702,900	1,7502,2702,900

Hot Finished Square Hollow Sections Material Spec: EN100219 S275JR / J2H EN100219 S355JR / J2H

Section Size	Wall Thickness	Unit Weight	Section Area	Second Moment of Area	Radius of Gyration	Elastic Modulus	Plastic Modulus	Torsional Constants		Surface AreaPer Metre
D x B	t	M	A	I	r	Z	S	J	C
mm	mm	kg/m	cm2	cm4	cm4	cm3	cm3	cm4	cm3	m2/m
20 x 20	2.002.50	1.121.35	1.401.68	0.740.84	0.730.71	0.740.84	0.931.08	1.221.41	1.071.20	0.070.07
25 x 25	2.002.503.003.20	1.411.742.002.15	1.802.182.542.68	1.561.812.002.06	0.930.910.890.88	1.251.441.601.65	1.531.822.062.15	2.522.973.353.48	1.812.082.302.37	0.090.090.090.09
30 x 30	2.503.003.20	2.142.472.65	2.683.143.32	3.333.743.89	1.111.091.08	2.222.502.59	2.743.143.29	5.406.166.44	3.223.603.74	0.110.110.11
35 x 35	4.006.00	3.765.16	4.796.57	7.488.81	1.251.16	4.285.03	5.476.91	12.5015.40	6.167.19	0.130.13
40 x 40	2.503.003.204.00 5.00	2.923.453.664.46 5.40	3.684.344.605.59 6.73	8.549.7810.2011.80 13.40	1.521.501.491.45 1.41	4.274.895.115.91 6.68	5.145.976.287.44 8.66	13.6015.7016.5019.50 22.50	6.227.107.428.54 9.60	0.150.150.150.15 0.15
45 x 45	4.005.00	5.016.07	6.397.73	17.6020.10	1.661.61	7.828.95	9.7111.41	28.7033.50	11.3012.90	0.170.17
50 x 50	2.503.003.204.00 5.00 6.00 6.30 8.00 10.00	3.714.394.665.72 6.97 8.15 8.49 10.31 11.70	4.685.545.887.19 8.73 10.20 10.60 12.70 14.90	17.5020.2021.2025.00 28.90 32.00 32.80 35.20 37.60	1.931.911.901.86 1.82 1.77 1.76 1.70 1.59	6.998.088.499.99 11.60 12.80 13.10 14.10 15.00	8.299.7010.2012.30 14.50 16.50 17.00 19.20 21.40	27.5032.1033.8040.40 47.60 53.60 55.20 60.90 66.70	10.2011.8012.4014.50 16.70 18.40 18.80 20.10 21.40	0.190.190.190.19 0.19 0.19 0.18 0.18 0.17
60 x 60	3.003.204.005.00 6.00 6.30 8.00 10.00	5.395.676.978.54 10.00 10.50 12.80 14.90	6.747.168.7910.70 12.60 13.10 16.00 18.90	36.2038.2045.4053.30 59.90 61.60 69.70 75.50	2.322.312.272.23 2.18 2.17 2.09 2.00	12.1012.7015.1017.80 20.00 20.50 23.20 25.20	14.3015.2018.3021.90 25.10 26.00 30.40 34.40	56.9060.2072.5086.40 98.60 102.00 118.00 131.00	17.7018.6022.0025.70 28.80 29.60 33.40 36.00	0.230.230.230.23 0.23 0.22 0.22 0.21
70 x 70	3.003.605.006.00 6.30 8.00	6.287.4610.1011.90 12.50 15.30	7.949.4212.7015.00 15.60 19.20	59.0068.6088.50101.00 104.00 120.00	2.732.702.642.59 2.58 2.50	16.9019.6025.3028.70 29.70 34.20	19.9023.3030.8035.50 36.90 43.80	92 108 142 163 169 200	24.8028.7036.8041.60 42.90 49.20	0.270.270.270.27 0.26 0.26

 

Section Size	Wall Thickness	Unit Weight	Section Area	Second Moment of Area	Radius of Gyration	Elastic Modulus	Plastic Modulus	Torsional Constants		Surface AreaPer Metre
D x B	t	M	A	I	r	Z	S	J	C
mm	mm	kg/m	cm2	cm4	cm4	cm3	cm3	cm4	cm3	m2/m
75 x 75	3.20	7.25	9.08	77.50	2.92	20.70	24.30	121	30.30	0.29
	4.00	8.93	11.20	93.20	2.89	24.80	29.60	147	36.30	0.29
			13.70	111.00	2.84	29.60	35.80	177	43.00	0.29
	5.00	11.00
			16.20	126.00	2.80	33.70	41.40	204	48.90	0.29
	6.00	12.90
			16.90	131.00	2.78	34.90	43.00	212	50.50	0.28
	6.30	13.50
			20.80	152.00	2.71	40.50	51.30	252	58.40	0.28
	8.00	16.60
			24.90	170.00	2.61	45.40	59.40	289	65.10	0.27
	10.00	19.60
80 x 80	3.00	7.18	9.14	89.80	3.13	22.50	26.30	140	33.00	0.31
	3.60	8.59	10.90	105.00	3.11	26.20	31.00	164	38.50	0.31
			14.70	137.00	3.05	34.20	41.10	217	49.80	0.31
	5.00	11.70
			17.40	156.00	3.00	39.10	47.80	252	56.80	0.31
	6.00	13.80
			18.10	162.00	2.99	40.50	49.70	262	58.70	0.30
	6.30	14.40
			22.40	189.00	2.91	47.30	59.50	312	68.30	0.30
	8.00	17.80
	10.00	21.10	26.90	214.00	2.82	53.50	69.30	360	76.80	0.29
90 x 90	3.60	9.72	12.30	152	3.52	33.80	39.70	237	49.70	0.35
	5.00	13.30	16.70	200	3.45	44.40	53.00	316	64.80	0.35
	6.00	15.70	19.80	230	3.41	51.10	61.80	367	74.30	0.35
	6.30	16.40	20.70	238	3.40	53.00	64.30	382	77.00	0.34
	8.00	20.40	25.60	281	3.32	62.60	77.60	459	90.50	0.34
	10.00	24.30	30.90	322	3.23	71.60	91.30	536	103.00	0.33
100 x 100	4.00	12.00	15.20	232	3.91	46.40	54.40	361	68.20	0.39
	5.00	14.80	18.70	279	3.86	55.90	66.40	439	81.80	0.39
	6.00	17.60	22.20	323	3.82	64.60	77.60	513	94.30	0.39
	6.30	18.40	23.20	336	3.80	67.10	80.90	534	97.80	0.38
	8.00	22.90	28.80	400	3.73	79.90	98.20	646	116.00	0.38
	10.00	27.90	34.90	462	3.64	92.40	116.00	761	133.00	0.37
	12.00	31.90	40.70	512	3.55	102.00	132.00	858	147.00	0.37
120 x 120	5.00	18.00	22.70	498	4.68	83.00	97.60	777	122	0.47
	6.00	21.30	27.00	579	4.63	96.60	115.00	911	141	0.47
	6.30	22.30	28.20	603	4.62	100.00	120.00	950	147	0.46
	8.00	27.90	35.20	726	4.55	121.00	146.00	1,160	176	0.46
	10.00	34.20	42.90	852	4.46	142.00	175.00	1,382	206	0.45
	12.50	41.60	52.10	982	4.34	164.00	207.00	1,623	236	0.45
140 x 140	5.00	21.10	26.70	807	5.50	115.00	135	1,253	170	0.55
	6.00	25.10	31.80	944	5.45	135.00	159	1,475	198	0.55
	8.00	32.90	41.60	1,195	5.36	171.00	204	1,892	249	0.54
	10.00	40.40	50.90	1,416	5.27	202.00	246	2,272	294	0.53
	12.50	49.50	62.10	1,653	5.16	236.00	293	2,696	342	0.53
150 x 150	5.00	22.70	28.70	1,002	5.90	134	156	1,550	197	0.59
	6.00	27.00	34.20	1,174	5.86	156	184	1,828	230	0.59
	6.30	28.30	35.80	1,223	5.85	163	192	1,909	240	0.58
	8.00	35.40	44.80	1,491	5.77	199	237	2,351	291	0.58
	10.00	43.60	54.90	1,773	5.68	236	286	2,832	344	0.57
	12.50	52.40	67.10	2,080	5.57	277	342	3,375	402	0.57
	16.00	66.40	83.00	2,430	5.41	324	411	4,026	467	0.56

Section Size

Wall Thickness

Unit Weight

Section Area

Second Moment of Area

Radius of Gyration

Elastic Modulus

Plastic Modulus

Torsional Constants

Surface Area

Per Metre

D x B

t

M

A

I

r

Z

S

J

C

 

mm

mm

kg/m

cm2

cm4

cm4

cm3

cm3

cm4

cm3

m2/m

160 x 160

12.50   16.0057.30 70.2072.10 89.402,576 3,0285.98 5.82

322

379

395

476

4,158   4,988467 5460.61 0.60

180 x 180

6.00   6.30 8.00 10.00 12.50 16.0032.60 34.20 43.00 53.00 65.20 81.4041.40 43.30 54.40 66.90 82.10 102.002,077 2,168 2,661 3,193 3,790 4,5047.09 7.07 7.00 6.91 6.80 6.64

231

241

296

355

421

500

269

281

349

424

511

621

3,215   3,361 4,162 5,048 6,070 7,343340 355 434 518 613 7240.71 0.70 0.70 0.69 0.69 0.68

200 x 200

5.00   6.00 6.30 8.00 10.00 12.50 16.0030.50 36.40 38.20 48.00 59.30 73.00 91.5038.70 46.20 48.40 60.80 74.90 92.10 115.002,445 2,883 3,011 3,709 4,471 5,336 6,3947.95 7.90 7.89 7.81 7.72 7.61 7.46

245

288

301

371

447

534

639

283

335

350

436

531

643

785

3,756   4,449 4,653 5,778 7,031 8,491 10,340362 426 444 545 655 778 9270.79 0.79 0.78 0.78 0.77 0.77 0.76

220 x 220

5.00   6.00 8.00 10.00 12.00 14.0033.50 40.00 52.70 65.10 77.20 88.9042.70 51.00 67.20 82.90 98.30 113.003,281 3,875 5,002 6,050 7,023 7,9228.76 8.72 8.63 8.54 8.45 8.36

298

352

455

550

638

720

344

408

532

650

762

868

5,028   5,963 7,765 9,473 11,090 12,620442 521 669 807 933 1,0490.87 0.87 0.86 0.85 0.85 0.84

250 x 250

6.00   6.30 8.00 10.00 12.50 16.0045.80 48.10 60.50 75.00 92.60 117.0058.20 61.00 76.80 94.90 117.00 147.005,752 6,014 7,455 9,055 10,920 13,2709.94 9.93 9.86 9.77 9.66 9.50

460

481

596

724

873

1,061

531

556

694

851

1,037

1,280

8,825   9,238 11,530 14,110 17,160 21,140681 712 880 1,065 1,279 1,5460.99 0.98 0.98 0.97 0.97 0.96

260 x 260

6.00   6.30 8.00 10.00 12.00 12.50 14.00 14.20 16.0047.60 49.90 62.80 77.70 92.20 95.80 106.00 108.00 120.0060.60 63.50 80.00 98.90 117.00 122.00 136.00 137.00 153.006,491 6,788 8,423 10,240 11,950 12,370 13,560 13,710 15,06010.40 10.30 10.30 10.20 10.10 10.10 10.00 9.99 9.91

499

522

648

788

920

951

1,043

1,055

1,159

576

603

753

924

1,087

1,127

1,244

1,259

1,394

9,951   10,420 13,010 15,930 18,730 19,410 21,400 21,660 23,940740 773 956 1,159 1,348 1,394 1,525 1,542 1,6891.02 1.02 1.02 1.01 1.01 1.01 1.00 1.00 1.00

300 x 300

6.00   6.30 8.00 9.00 10.00 12.00 12.50 16.0055.10 57.95 73.10 81.93 90.70 107.97 112.00 142.0070.00 73.60 92.80 104.00 115.00 137.00 142.00 179.0010,080 10,550 13,130 14,600 16,030 18,780 19,440 23,85012.00 12.00 11.90 11.90 11.80 11.70 11.70 11.50

672

703

875

973

1,068

1,252

1,296

1,590

772

809

1,013

1,130

1,246

1,470

1,525

1,895

15,407   16,140 20,190 22,520 24,810 29,250 30,330 37,620997 1,043 1,294 1,437 1,575 1,840 1,904 2,3251.18 1.18 1.18 1.18 1.17 1.17 1.17 1.16  

Section Size

Wall Thickness

Unit Weight

Section Area

Second Moment of Area

Radius of Gyration

Elastic Modulus

Plastic Modulus

Torsional Constants

Surface Area

Per Metre

D x B

t

M

A

I

r

Z

S

J

C

 

mm

mm

kg/m

cm2

cm4

cm4

cm3

cm3

cm4

cm3

m2/m

350 x 350

6.00

64.50

82.20

16,170

14.00

924

1,058

24,650

1,373

1.38

8.0085.70109.0021,13013.901,2071,39232,3801,7891.38

10.00

106.00

135.00

25,880

13.90

1,479

1,715

39,890

2,185

1.37

 

12.00

127.00

161.00

30,440

13.80

1,739

2,030

47,150

2,563

1.37

 

12.50

132.00

167.00

31,540

13.70

1,802

2,107

48,930

2,654

1.37

 

14.00

146.00

186.00

34,790

13.70

1,988

2,334

54,190

2,922

1.36

 

14.20

148.00

189.00

35,210

13.70

2,012

2,364

54,880

2,957

1.36

 

16.00

167.00

211.00

38,940

13.60

2,225

2,630

60,990

3,264

1.36

 

19.00

190.00

248.00

44,820

13.50

2,561

3,055

70,760

3,744

1.35

 

22.00

217.00

283.00

50,270

13.30

2,873

3,460

80,010

4,187

1.34

 

25.00

242.00

318.00

55,320

13.20

3,161

3,845

88,750

4,595

1.34

400 x 400

8.00

97.90

125

31,860

16.00

1,593

1,830

48,700

2,363

1.58

10.00122.00

155

39,13015.901,9562,26060,0902,8951.57

12.00

145.00

185

46,130

15.80

2,306

2,679

71,180

3,405

1.57

 

12.50

152.00

192

47,840

15.80

2,392

2,782

73,910

3,530

1.57

 

14.00

168.00

214

52,870

15.70

2,643

3,087

81,960

3,894

1.56

 

14.20

170.00

217

53,530

15.70

2,676

3,127

83,030

3,942

1.56

 

16.00

192.00

243

59,340

15.60

2,967

3,484

92,440

4,362

1.56

 

20.00

237.00

300

71,540

15.40

3,577

4,247

112,500

5,237

1.55

 

22.00

251.00

327

77,260

15.40

3,863

4,612

122,100

5,646

1.54

 

25.00

282.00

368

85,380

15.20

4,269

5,141

135,900

6,223

1.54

450 x 450

12.00

162

209

66,460

17.80

2,954

3,419

102,200

4,368

1.77

16.00

213

275

85,86017.703,8164,459133,2005,6201.76

19.00

250

324

99,540

17.50

4,424

5,208

155,400

6,497

1.75

 

22.00

286

371

112,500

17.40

5,000

5,929

176,700

7,324

1.74

 

25.00

321

418

124,700

17.30

5,544

6,624

197,200

8,101

1.74

 

28.00

355

464

136,300

17.10

6,058

7,292

216,800

8,832

1.73

 

32.00

399

524

150,700

17.00

6,696

8,143

241,700

9,735

1.72

500 x 500

12.00

181

233

92,030

19.89

3,681

4,248

141,200

5,451

1.97

16.00

238

307

119,30019.714,7715,554184,4007,0381.96

19.00

280

362

138,600

19.58

5,545

6,498

215,500

8,159

1.95

 

22.00

320

415

157,100

19.44

6,283

7,411

245,600

9,222

1.94

 

25.00

360

468

174,600

19.31

6,986

8,295

274,600

10,230

1.94

 

28.00

399

520

191,300

19.18

7,653

9,149

302,600

11,180

1.93

 

32.00

450

588

212,300

19.00

8,491

10,242

338,200

12,370

1.92

 

36.00

498

654

231,700

18.82

9,269

11,283

372,000

13,470

1.91

550 x 550

16.00

263

339

160,400

21.75

5,833

6,769

247,300

8,616

2.16

19.00

309

400

186,80021.626,7937,930289,50010,0102.15

22.00

355

459

212,100

21.49

7,714

9,058

330,400

11,340

2.14

 

25.00

399

518

236,300

21.35

8,594

10,150

370,100

12,610

2.14

 

28.00

443

576

259,500

21.22

9,436

11,220

408,400

13,810

2.13

 

32.00

500

652

288,700

21.04

10,500

12,580

457,500

15,330

2.12

 

36.00

555

726

316,100

20.86

11,500

13,890

504,400

16,740

2.11

 

40.00

608

799

341,800

20.68

12,430

15,140

549,000

18,060

2.10

 

Section Size

Wall Thickness

Unit Weight

Section Area

Second Moment of Area

Radius of Gyration

Elastic Modulus

Plastic Modulus

Torsional Constants

Surface Area

Per Metre

D x B

t

M

A

I

r

Z

S

J

C

 

mm

mm

kg/m

cm2

cm4

cm4

cm3

cm3

cm4

cm3

m2/m600 x 600

25.00

438

568

311,100

23.40

10,370

12,200

485,300

15,230

2.3428.00

487

632342,10023.2611,41013,490536,30016,7202.33

32.00

550

716

381,600

23.08

12,720

15,160

601,900

18,600

2.32

36.00

611

798

418,800

22.91

13,960

16,770

664,900

20,370

2.31

40.00

671

879

453,900

22.73

15,130

18,310

725,100

22,030

2.30700 x 700

25.00

517

668

504,700

27.48

14,420

16,850

782,900

21,240

2.7428.00

575

744556,60027.3515,90018,670867,00023,3802.73

32.00

651

844

623,100

27.17

17,800

21,040

975,800

26,110

2.72

36.00

724

942

686,500

26.99

19,610

23,330

1,081,000

28,700

2.71

40.00

797

1,039

746,900

26.81

21,340

25,540

1,182,000

31,160

2.70