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STEEL TUBES FOR STRUCTURAL PURPOSES (IS: 1161-1998)

N.B. and Series		Outside diameter	Thickness	Nominal weight Black Tubes Plain End		Calculated Nominal weight Galvanised Tubes Plain End
		mm	mm	kg/m	m/tonne	kg/m	m/tonne
15	L	21.3	2.0	0.95	1056	1.00	1000
	M	21.3	2.6	1.21	826	1.26	794
	H	21.3	3.2	1.44	694	1.49	671
20	L	26.9	2.3	1.38	725	1.43	699
	M	26.9	2.6	1.56	641	1.61	621
	H	26.9	3.2	1.87	535	1.92	521
25	L	33.7	2.6	1.98	505	2.03	493
	M	33.7	3.2	2.41	415	2.46	407
	H	33.7	4.0	2.93	341	3.98	336
32	L	42.4	2.6	2.54	394	2.62	382
	M	42.4	3.2	3.10	323	3.18	314
	H	42.4	4.0	3.79	264	3.87	258
40	L	48.3	2.9	3.23	310	3.34	299
	M	48.3	3.2	3.56	281	3.67	272
	H	48.3	4.0	4.37	229	4.48	223
50	L	60.3	2.9	4.08	245	4.20	238
	M	60.3	3.6	4.03	199	5.15	194
	H	60.3	4.5	6.19	162	6.31	158
65	L	76.1	3.2	5.71	175	5.86	171
	M	76.1	3.6	6.42	156	6.57	152
	H	76.1	4.5	7.93	126	8.10	123
80	L	88.9	3.2	6.72	149	6.90	145
	M	88.9	4.0	8.36	120	8.54	117
	H	88.9	4.8	9.90	101	10.08	99
100	L	114.3	3.6	9.75	103	9.97	100
	M	114.3	4.5	12.20	82	12.42	81
	H	114.3	5.4	14.50	69	14.72	68
125	L	139.7	4.5	15.00	67	15.25	66
	M	139.7	4.8	15.90	63	16.15	62
	H	139.7	5.4	17.90	56	18.15	55
150	L	165.1	4.5	17.80	56	18.20	55
	M	165.1	4.8	18.90	53	19.30	52
	H	165.1	5.4	21.30	47	21.70	46