Engineer

Lightweight and high strength, Tata Structura enables engineers to develop and construct large buildings which are used for various applications. Bridges, Airport terminals and Stadiums are just some of the constructions that use Tata Structura products.

Product Details

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Engineer Project Product Details

Tata Structura steel hollow sections are available in three categories -

Square hollow sections - These are manufactured up to a maximum size of 250x250 mm
Rectangular hollow sections - These are manufactured up to a maximum size of 300x200 mm
Circular hollow sections - These are manufactured up to a maximum size of 300 mm NB

The thickness of these steel hollow sections vary from 2 mm to 10 mm, depending on what application the tubes would service. Each steel hollow section features a high strength to weight ratio that results in savings in steel and costs. The sections are best suited for welding, are corrosion resistant and easily bendable which leads to the shaping and construction of aesthetically appealing structures without comprising on strength and durability.

Quality and Certification

Tata Structura steel hollow sections are manufactured using only high quality pure steel HR coils. The structural hollow tubes conform to IS: 4923 and IS: 1161 manufacturing standards.

Tata Structura Square Hollow Sections

Section Properties

Properties of Tata Structura Square hollow sections - YST 310 Grade

SHS B X B mm	Thickness mm	Sec Area A cm²	Unit W Kg/m	Moment of Inertia		Radius of Gyration		Elastic Modulus		Torsional Constants		Outer Surface
SHS B X B mm	Thickness mm	Sec Area A cm²	Unit W Kg/m	I_xx cm⁴	I_yy cm⁴	r_xx cm	r_yy cm	Z_xx cm³	Z_yy cm³	J cm⁴	B cm³	Area per mm²
25x25	2.00	1.74	1.36	1.48	1.48	0.92	0.92	1.19	1.19	2.29	1.68	0.090
	2.60	2.16	1.69	1.72	1.72	0.89	0.89	1.38	1.38	2.68	1.92	0.087
	3.20	2.53	1.98	1.89	1.89	0.86	0.86	1.51	1.51	2.96	2.07	0.084
32x32	2.00	2.30	1.80	3.36	3.36	1.21	1.21	2.10	2.10	5.30	3.05	0.118
	2.60	2.88	2.26	4.02	4.02	1.18	1.18	2.51	2.51	6.45	3.63	0.115
	3.20	3.42	2.69	4.54	4.54	1.15	1.15	2.84	2.84	7.41	4.07	0.112
38x38	2.60	3.51	2.75	7.14	7.14	1.43	1.43	3.76	3.76	11.51	5.49	0.139
	3.20	4.19	3.29	8.18	8.18	1.40	1.40	4.30	4.30	13.45	6.28	0.136
	4.00	5.03	3.95	9.26	9.26	1.36	1.36	4.87	4.87	15.67	7.12	0.131
40x40	2.60	3.72	2.92	8.45	8.45	1.51	1.51	4.22	4.22	13.63	6.20	0.147
	3.20	4.45	3.49	9.72	9.72	1.48	1.48	4.86	4.86	16.00	7.12	0.144
	4.00	5.35	4.20	11.07	11.07	1.44	1.44	5.54	5.54	18.75	8.12	0.139
50x50	2.60	4.76	3.74	17.47	17.47	0.92	0.92	6.99	6.99	28.53	10.37	0.187
	2.90	5.25	4.12	18.99	18.99	1.90	1.90	7.60	7.60	31.15	11.23	0.185
	3.60	6.35	4.98	22.15	22.15	1.87	1.87	8.86	8.86	36.58	12.98	0.181
	4.50	7.67	6.02	25.50	25.50	1.82	1.82	10.20	10.20	41.99	14.68	0.177
60x60	2.60	5.80	4.55	31.33	31.33	2.33	2.33	10.44	10.44	50.08	15.52	0.227
	2.90	7.01	5.50	36.94	36.94	2.30	2.30	12.31	12.31	60.02	18.31	0.224
	3.60	8.55	6.71	43.55	43.55	2.26	2.26	14.52	14.52	72.41	21.52	0.219
	4.50	10.01	7.85	49.22	49.22	2.22	2.22	16.41	16.41	83.86	24.51	0.215
72x72	3.20	8.54	6.71	66.32	66.32	2.79	2.79	18.42	18.42	106.81	27.47	0.272
	4.00	10.47	8.22	79.03	79.03	2.75	2.75	21.95	21.95	129.85	32.78	0.267
	4.80	12.31	9.66	90.31	90.31	2.71	2.71	25.09	25.09	151.55	37.55	0.263
80x80	3.20	9.57	7.51	92.71	92.71	3.11	3.11	23.18	23.18	148.55	34.60	0.304
	4.00	11.75	9.22	111.04	111.04	3.07	3.07	27.76	27.76	181.22	41.49	0.299
	4.80	13.85	10.87	127.58	127.58	3.04	3.04	31.89	31.89	212.26	47.77	0.295
91.5x91.5	3.60	12.32	9.67	156.49	156.49	3.56	3.56	34.21	34.21	251.17	51.14	0.347
	4.50	15.14	11.88	187.57	187.57	3.52	3.52	41.00	41.00	306.78	61.40	0.343
	5.40	17.85	14.01	215.68	215.68	3.48	3.48	47.14	47.14	359.76	70.77	0.228
100x100	4.00	14.95	11.73	226.35	226.35	3.89	3.89	45.27	45.27	364.75	67.50	0.379
	5.00	18.36	14.41	271.10	271.10	3.84	3.84	54.22	54.22	441.84	80.54	0.374
	6.00	21.63	16.19	311.47	311.47	3.79	3.79	62.29	62.29	511.80	92.06	0.369
113.5x113.5	4.80	20.28	15.92	393.30	393.30	4.40	4.40	69.30	69.30	637.45	103.89	0.429
113.5x113.5	5.40	22.60	17.74	432.58	432.58	4.38	4.38	76.23	76.23	708.69	114.41	0.426
132x132	4.80	23.83	18.71	634.39	634.39	5.16	5.16	96.12	96.12	1018.30	144.11	0.503
132x132	5.40	26.60	20.88	700.11	700.11	5.13	5.13	106.08	106.08	1134.25	159.18	0.500
150x150	4.00	22.95	18.01	807.82	807.82	5.93	5.93	107.71	107.71	1273.46	161.38	0.579
	5.00	28.36	22.26	982.12	982.12	5.89	5.89	130.95	130.95	1569.09	196.38	0.574
	6.00	33.63	26.40	1145.91	1145.91	5.84	5.84	152.79	152.79	1856.18	229.44	0.569
	8.00	43.79	34.38	1443.00	1443.00	5.71	5.71	192.40	192.40	2405.78	290.12	0.559
180x180	4.00	27.75	21.78	1421.74	1421.74	7.16	7.16	157.97	157.97	224.31	236.76	0.699
	5.00	34.36	26.97	1736.87	1736.87	7.11	7.11	192.99	192.99	2747.93	289.40	0.694
	6.00	40.83	32.08	2036.52	2036.52	7.06	7.06	226.28	226.28	3259.23	339.65	0.689
	8.00	53.39	41.91	2590.73	2590.73	6.97	6.97	287.86	287.86	4246.16	433.32	0.679
220x220	5.00	42.36	33.25	3238.12	3238.12	8.74	8.74	294.37	294.37	5083.17	440.67	0.854
	6.00	50.43	39.59	3813.36	3813.36	8.70	8.70	346.67	346.67	6034.53	520.18	0.849
	8.00	66.19	51.96	4894.99	4894.99	8.60	8.60	445.00	445.00	7897.48	668.99	0.839
	10.00	81.43	63.92	5887.19	5887.19	8.50	8.50	535.20	535.20	9549.15	796.48	0.829
250x250	6.00	57.63	45.24	5672.00	5672.00	9.92	9.92	453.76	453.76	8920.44	680.77	0.969
	8.00	75.79	59.50	7135.65	7315.65	9.82	9.82	585.25	585.25	11702.07	879.31	0.959
	10.00	93.43	73.34	8842.29	8842.29	9.73	9.73	707.38	707.38	14248.15	1054.68	0.949

Orange box sizes are for large diameter sections

Product Range Availability

Section Size	Tube Dimension (mm)		Wall Thickness (mm) = t
	B	B	2.0	2.6	2.9	3.2	3.6	4.0	4.5	4.8	5.0	5.4	6.0	8.0	10.0
	25	25
	32	32
	38	38
	40	40
	50	50
	60	60
	72	72
	80	80
	91.5	91.5
	100	100
	113.5	113.5
	132	132
	150	150
	180	180
	220	220
	250	250

Orange box sizes are for large diameter sections

Indicates presently rolled sections

Tata Structura Rectangular Hollow Sections

Section Properties

Properties of Tata Structura Rectangular hollow sections - YST 310 Grade

RHS D X B mm	Thickness mm	Sec Area A cm²	Unit W Kg/m	Moment of Inertia		Radius of Gyration		Elastic Modulus		Torsional Constants		Outer Surface
RHS D X B mm	Thickness mm	Sec Area A cm²	Unit W Kg/m	I_xxcm⁴	I_yy cm⁴	r_xx cm	r_yy cm	Z_xx cm³	Z_yy cm³	J cm⁴	B cm³	Area per mm²
50x25	2.00	2.74	2.15	8.38	2.81	1.75	10.10	3.35	2.25	6.79	3.79	0.142
	2.60	3.46	2.71	10.16	3.36	1.71	0.99	4.06	2.69	8.27	4.53	0.137
	3.20	4.13	3.24	11.63	3.80	1.68	0.96	4.65	3.04	9.52	5.12	0.134
	4.00	4.95	3.88	13.13	4.23	1.63	0.92	5.25	3.38	10.86	5.69	0.129
60x40	2.60	4.76	3.73	22.76	12.09	2.19	1.59	7.59	6.05	25.59	9.83	0.187
	2.90	5.25	4.12	24.74	13.11	2.17	1.58	8.25	6.56	28.02	10.66	0.185
	3.60	6.35	4.98	28.90	15.23	2.13	1.55	9.63	7.62	33.30	12.41	0.181
	4.50	7.67	6.02	33.31	17.44	2.08	1.51	11.10	8.72	39.34	14.29	0.177
66x33	2.60	4.70	3.69	25.15	8.43	2.31	1.34	7.62	5.11	20.75	8.71	0.185
	2.90	5.19	4.07	27.33	9.12	2.29	1.33	8.28	5.53	22.65	9.43	0.183
	3.60	6.28	4.93	31.87	10.52	2.25	1.29	9.66	6.37	26.71	10.90	0.179
	4.50	7.58	5.95	36.64	11.93	2.20	1.25	11.10	7.23	31.21	12.43	0.175
80x40	2.60	5.80	4.55	46.58	15.74	2.84	1.65	11.65	7.87	38.50	13.46	0.227
	3.20	7.01	5.50	54.94	18.41	2.80	1.62	13.74	9.21	45.83	15.78	0.224
	4.00	8.55	6.71	64.79	21.49	2.75	1.59	16.20	10.74	54.77	18.49	0.219
	4.80	10.01	7.85	73.22	24.03	2.71	1.55	18.30	12.02	62.81	20.79	0.215
96x48	3.20	8.54	6.71	98.61	33.28	3.40	1.97	20.54	13.87	82.13	23.82	0.272
	4.00	10.47	8.22	117.54	39.32	3.35	1.94	24.49	16.38	99.11	28.24	0.267
	4.80	12.31	9.66	134.35	44.55	3.30	1.90	27.99	18.56	114.80	32.14	0.263
122x61	3.60	12.32	9.67	232.61	78.83	4.34	2.53	38.13	25.84	193.91	44.50	0.347
	4.50	15.14	11.88	278.94	93.78	4.29	2.49	45.73	30.75	235.39	53.13	0.343
	5.40	17.85	14.01	320.83	107.03	4.24	2.45	52.60	35.09	274.29	60.89	0.338
145x82	4.80	20.28	15.92	555.16	228.50	5.23	3.36	76.57	55.73	534.27	94.45	0.429
145x82	5.40	22.60	17.74	610.85	250.59	5.20	3.33	84.26	61.12	592.70	103.81	0.426
172x92	4.80	23.83	18.71	917.13	346.91	6.20	3.82	106.64	75.41	826.04	128.85	0.503
172x92	5.40	26.59	20.88	1012.47	381.74	6.17	3.79	117.73	82.99	918.10	142.04	0.500
200x100	4.00	22.95	18.01	1199.71	410.78	7.23	4.23	119.97	82.16	991.47	141.46	0.579
	5.00	28.36	22.26	1459.25	496.94	7.17	4.19	145.93	99.39	1216.96	171.53	0.574
	6.00	33.63	26.40	1703.31	576.91	7.12	4.14	170.33	115.38	1434.03	199.68	0.569
	8.00	43.79	34.38	2146.21	719.19	7.00	4.05	214.62	143.84	1843.86	250.68	0.559
240x120	4.00	27.75	21.78	2110.72	725.35	8.72	5.11	175.89	120.29	1736.39	208.03	0.699
	5.00	34.36	26.97	2579.67	882.47	8.67	5.07	214.97	147.08	2138.48	253.55	0.694
	6.00	40.83	32.05	3025.91	1030.45	8.61	5.02	252.16	171.74	2528.39	296.70	0.689
	8.00	53.39	41.91	3851.84	1299.95	8.49	4.93	320.99	216.66	3272.90	376.29	0.679
300x150	6.00	51.63	40.53	6073.51	2079.57	10.85	6.35	404.90	277.28	5034.64	478.20	0.869
	8.00	67.79	53.22	7807.95	2654.12	10.73	6.26	520.53	353.88	6559.05	612.64	0.859
	10.00	83.43	65.49	9403.90	3173.71	10.62	6.17	626.93	423.16	8011.67	736.01	0.848
300x200	6.00	57.63	45.24	7370.23	3962.19	11.31	8.29	491.35	296.22	8186.02	650.85	0.969
	8.00	75.79	59.50	9513.66	5097.04	11.12	8.20	634.24	509.70	10722.83	839.51	0.959
	10.00	93.43	73.34	11507.24	6144.30	11.10	8.11	767.15	614.43	13169.70	1015.43	0.948

Orange box sizes are for large diameter sections

Product Range Availability

Section Size	Tube Dimension (mm)		Wall Thickness (mm) = t
	D	B	2.0	2.6	2.9	3.2	3.6	4.0	4.5	4.8	5.0	5.4	6.0	8.0	10.0
	50	25
	60	40
	66	33
	80	40
	96	48
	122	61
	145	82
	172	92
	200	100
	240	120
	300	150
	300	200

Orange box sizes are for large diameter sections

Indicates presently rolled sections

Tata Structura Circular Hollow Sections

Section Properties

Properties of Tata Structura Circular hollow sections - YST 310 Grade

Nominal Bore	Outside diameter	Thickness	Weight	Area of Cross Section	Outer Surface Area/m	Moment of Inertia	Section Modulus	Radius of Gyration
mm	mm	mm	kg/m	cm²	cm²/m	cm⁴	cm³	cm
15	21.3	2.00	0.95	1.21	669	0.57	0.54	0.69
		2.60	1.21	1.53		0.69	0.64	0.66
		3.20	1.44	1.82		0.75	0.70	0.65
20	26.9	2.30	1.38	1.78	845	1.36	1.01	0.87
		2.60	1.56	1.98		1.48	1.10	0.86
		3.20	1.87	2.38		1.70	1.26	0.84
25	33.7	2.60	1.98	2.54	1059	3.09	1.83	1.10
		3.20	0.24	3.06		3.61	2.14	1.08
		4.00	2.93	3.73		4.19	2.48	1.05
32	42.4	2.60	2.54	3.25	1332	6.47	3.05	1.41
		3.20	3.01	3.94		7.62	3.59	1.39
		4.00	3.79	4.82		8.99	4.24	1.36
40	48.3	2.90	3.23	4.13	1517	10.70	4.43	1.61
		3.20	3.56	4.53		11.59	4.80	1.59
		4.00	4.37	5.56		13.77	5.70	1.57
50	60.3	2.90	4.08	5.23	1895	21.59	7.16	2.03
		3.60	5.03	6.41		25.88	8.59	2.00
		5.00	6.19	7.88		30.90	10.20	1.98
65	76.1	3.20	5.71	7.32	2391	48.79	12.82	2.58
		3.60	6.42	8.20		54.02	14.20	2.57
		4.50	7.93	10.10		65.12	17.10	2.54
80	88.9	3.20	6.72	8.61	2793	79.23	17.82	3.03
		4.00	8.36	10.70		96.36	21.68	3.00
		4.80	9.90	12.70		112.52	25.31	2.98
100	114.3	3.60	9.75	12.50	3591	192.03	33.60	3.92
		4.50	12.20	15.50		234.30	41.00	3.89
		5.40	14.50	18.50		274.50	48.00	3.85
125	139.7	4.50	15.00	19.10	4389	437.20	62.60	4.78
		4.80	15.90	20.30		463.44	66.35	4.77
		5.40	17.90	22.80		514.50	73.70	4.75
150	165.1	4.50	17.80	22.70	5187	732.60	88.74	5.68
		4.80	18.90	24.20		777.32	94.16	5.67
		5.40	21.30	27.10		864.70	105.00	5.65
200	219.1	4.80	25.38	32.33	6886	1865.78	169.49	7.58
		6.00	31.51	40.17		2281.95	208.30	7.54
		8.00	41.67	53.08		2960.82	270.27	7.47
		10.00	51.59	65.72		3599.89	328.61	7.40
250	273	6.00	39.51	50.30	8580	4487.08	328.72	9.44
		8.00	52.30	66.63		5854.07	428.87	9.37
		10.00	64.59	82.66		7156.97	524.32	9.31
300	323.9	6.30	49.36	62.88	10180	7932.09	489.70	11.23
		8.00	62.35	79.43		9914.07	612.17	11.17
		10.00	77.44	98.65		12163.24	751.05	11.10

Orange box sizes are for large diameter sections

Product Range Availability

Section Size	Tube Dimension (mm)		Wall Thickness (mm) = t
	D	B	2.0	2.3	2.6	2.9	3.2	3.6	4.0	4.5	4.8	5.0	5.4	6.0	6.3	8.0	10.0
	15	21.3
	20	26.9
	25	33.7
	32	42.4
	40	48.3
	50	60.3
	65	76.1
	80	88.9
	100	114.3
	125	139.7
	150	165.7
	200	219.1
	250	273
	300	323.9

Orange box sizes are for large diameter sections

Indicates presently rolled sections

General Technical Specifications and Tolerances

PERMISSIBLE AXIAL COMPRESSIVE STRESS (YST 310 Grade)
1/r	10	20	30	40	50	60	70	80	90	100	110	120	130	140
Ac	186	183	178	169	157	143	128	113	99	87	77	67	60	53
1/r	150	160	170	180	190	200	210	220	230	240	250	300	350
Ac	47	42	38	34	31	28	26	23	22	20	18	13	10

*Source: IS standards

OTHER ALLOWABLE STRESS VALUES (in Mpa)
Steel Grade	Minimum Yield stress	Minimum UTS	Axial Stress in Tension	Bending Stress in Ten. Or Compn.	Shear Stress	Bearing Stress 232	Equivalent Stress
Yst 310	310	450	186	205	140	232	279

*Source: IS standards

Section Type	Grade	Mechanical Properties				Dimensional Tolerance
		YST	UTS	% of Elongation		Outside dimension	Thickness	Squareness	Corner radius	Weight
		Mpa	Mpa	< 25.4 mm	> 25.4 mm					Individual lengths	On lot of 10 MT
RHS/SHS IS : 4923	YST 210	210	330	12	20	+/-1% with a minimum of +/-0.50 mm	+/-10%	90 deg +/-2 deg.	3t max	10%-8%	+/-7.5%
	YST 240	240	410	10	15
	YST 310	310	450	8	10
CHS IS : 1161	YST 210	210	330	12	20	OD upto and incl 48.3+0.4/-0.8mm. Over 48.3 mm +/-1.0%	+ no limit -10%	NA	NA	L +10%, -8%	L +/-5%
	YST 240	240	410	12	17					M & H +/-10%	M & H +/-7.5%
	YST 310	310	450	12	14
*YST 210 and YST 240 are also manufactured							*Galvanized sections can also be manufactured

Length	6.0 m +/- 0.05 m Customized length ranging from 6 m to 11 m may be supplied.
Straightness	Minimum 1 : 200^th of any length measured along the centre line (mill straightened condition) unless otherwise specifically arranged.
Twist tolerance	Maximum 2 mm ± 0.05 mm/m length-measured relative vertical shift of any adjacent corner of the section, measured by keeping one side on flat surface.
End Finish	Plain ended-Mechanically sheared, mill-cut finish without further machining.
Surface Finish / Chemical Properties	Black without any surface treatment of oiling or varnishing.
Raw Material	Sulphur content: 0.05% max, phosphorus content: 0.05% max, equivalent carbon percentage well within specified weldability limits with matching physical properties. For corrosion resistant steel in Cu-bearing variety, refer to the WRS section.
Weldability	Tata Structura Steel Hollow Sections are weldable with standard M.S. Electrodes without any pre-heating.
Packing	Bundled by sealing metal strap and each bundle is labelled for size, measurement, lot number etc. Approximate weight of each bundle is 1.5 Mt (+/-500 kg).
Identification	Marking of 'TATA STRUCTURA' emblem on surface, punched/stencilled/sticker pasted, on all Steel Hollow Sections. Standard BIS mark is also put on the sections.
Note	Tata Structura Hollow Sections in customized size, grade, length, surface finish and end finish may be delivered as per agreed supply conditions.

*Conditions apply