News - Steel Tubes for Structural Purpose Conforming To IS:1161/1979

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Steel Tubes for Structural Purpose Conforming To IS:1161/1979

time2015/07/23

Steel Tubes for Structural Purpose Conforming To IS:1161/1979

Scaffold Tubes

Steel Scaffold Tubes, black, 48.3 mm O.D., mild steel, continous weld and 40 mm. N. B. 'Medium' and 'Heavy' class steel tubes conform to IS 1161-1979/1239, YST-210, YST-240 grade and BS 1139/1775. These are made available in random lengths of 4.5 M to 6M or of required cut length painted in desired colour.

Steel Pipes and Tubes - Pipes for Structural Purposes

Steel Tubes for Structural Purpose Conforming To IS:1161/1979

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 M H	21.3	2.00 2.65 3.25	0.96 1.22 1.45	1042 820 690	1.00 1.27 1.50	1000 787 667
20 L M H	26.9	2.35 2.65 3.25	1.42 1.58 1.90	704 633 526	1.47 1.64 1.96	680 610 510
25 L M H	33.7	2.65 3.25 4.05	2.04 2.46 2.99	490 407 259	2.09 2.52 3.94	478 397 254
32 L M H	42.4	2.65 3.25 4.05	2.61 3.15 3.86	383 317 259	2.69 3.24 3.94	372 309 254
40 L M H	48.3	2.90 3.25 4.05	3.27 3.61 4.43	306 277 226	3.37 3.73 4.55	297 268 220
50 L M H	60.3	2.90 3.25 3.65 4.50	4.14 4.57 5.10 6.17	242 219 196 126	4.26 4.71 5.25 8.09	235 212 190 124
65 L M H	76.1	3.25 3.65 4.50	5.84 6.53 7.92	171 153 126	5.99 6.70 8.09	167 149 124
80 L M H	88.9	3.25 4.05 4.85	6.86 8.48 10.10	146 118 99	7.04 8.70 10.32	142 115 97
90 L M H	101.6	3.65 4.05 4.85	8.82 9.75 11.60	113 103 86	9.09 10.03 11.87	110 100 84
100 L M H	114.3	3.65 4.50 5.40	9.97 12.10 14.50	100 83 69	10.18 12.39 14.69	98 81 68
110 L M H	127.0	4.50 4.85 5.40	13.6 14.6 16.2	74 68 62	13.9 14.90 16.5	72 67 61
125 L M H	139.7	4.50 4.85 5.40	14.9 16.2 17.9	67 62 56	15.24 16.56 18.16	66 60 65
135 L M H	152.4	4.50 4.85 5.40	16.4 17.7 19.5	61 57 51	16.77 18.07 19.87	60 55 50
150 L M H	165.1	4.50 4.85 5.40	17.8 19.2 21.2	56 52 47	18.20 19.63 21.62	55 51 46
150 L M H	168.3	4.50 4.85 5.40 6.30	18.1 19.6 21.7 25.3	55 51 46 40	18.50 20.00 22.10 25.7	54 50 45 39
175 L M H	193.7	4.85 5.40 5.90	22.60 25.00 27.30	44 40 37	23.13 25.53 27.83	43 39 36
200 L M H	219.1	4.85 5.60 5.90	25.7 29.4 31.0	39 34 32	26.24 29.94 31.54	38 33 32
250 H	273.0	5.90	38.8	26	39.56	25
300 H	323.9	6.3	49.5	20	50.40	20
350 H	355.6	8.00	68.6	14.50	69.58	14

Physical Properties

Grade	Y.S. (min) MPa (kg/mm2)	T.S. (min) MPa (kg/mm2)	% age Elongation
YST-210	210 (21.42)	330 (33.66)	20
YST-240	240 (24.48)	410 (41.82)	17

Tolerances

i) Outside diameter Upto & including 48.3 mm Over 48.3 mm ii) Thickness	+ 0.4 mm - 0.8 mm ± 1% + Not limited - 10%
iii) Weight - Single Tube -For quantities less than 150 metres of one size - For quantities 150 and over of one size.	+ 10% - 8% + 10% - 8% ± 4%