Steel Tubes For Ordinary Use

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Steel Tubes for Ordinary use in Water, Gas, Steam and Air Lines Conforming to IS : 1239 (Part - 1) 1990.

N.B. & SERIES		STRIP WIDTH	OUTSIDE DIAMETER		WALL THICKNESS			BLACK TUBES				GALVANISED TUBES			SOCKETS
							PLAIN END		SCREWED & SOCKETED		PLAIN END		SCREWED & SOCKETED		MIN. O.D.	MAX. LENGTH
	MM	MM	MAX.	MIN	MM	SWG	KG/M	M/TON	KG/M	M/TON	KG/M	M/TON	KG/M	M/TON	MM	MM
	L	64	21.4	21.0	2.0	14	0.947	1056	0.956	1046	0.947	1056	0.956	1046	27	37
15	M	63	21.8	21.0	2.6	12	1.210	826	1.22	819	1.21	826	1.220	819	27	37
	H	61	21.8	21.0	3.2	10	1.440	694	1.45	689	1.44	694	1.450	689	27	37
	L	81	27.9	26.4	2.3	13	1.380	724	1.39	719	1.38	724	1.390	719	32	39
20	M	80	27.3	26.5	2.6	12	1.560	641	1.57	637	1.56	641	1.570	637	32	39
	H	78	27.3	26.5	3.2	10	1.870	534	1.88	532	1.87	534	1.890	532	32	46
	L	101	33.8	33.2	2.6	12	1.980	505	2.00	500	1.98	505	2.000	500	39	46
25	M	99	34.2	33.3	3.2	10	2.410	415	2.43	411	2.41	415	2.430	411	49	46
	H	98	34.2	33.3	4.0	8	2.930	341	2.95	339	2.93	341	2.950	339	49	51
	L	128	42.5	41.9	2.6	12	2.540	393	2.57	389	2.54	393	2.570	389	49	51
32	M	127	42.9	42.0	3.2	10	3.100	322	3.13	319	3.10	322	3.130	319	49	51
	H	126	42.9	42.0	4.0	8	3.790	264	3.82	261	3.79	264	3.820	261	49	51
	L	147	48.4	47.8	2.9	11	3.230	309	3.27	306	3.23	309	3.270	306	56	51
40	M	146	48.8	47.9	3.2	10	3.560	281	3.60	277	3.56	280	3.600	277	56	51
	H	145	48.8	47.9	4.0	8	4.370	229	4.41	226	4.37	229	4.410	226	56	51
	L	184	60.2	59.6	2.9	11	4.080	245	4.15	241	4.08	245	4.150	241	68	60
50	M	182	60.8	59.7	3.6	9	5.030	199	5.10	196	5.03	199	5.100	196	68	60
	H	180	60.8	59.7	4.5	7	6.190	161	6.26	159	6.19	161	6.260	159	68	60
	L	234	76.0	75.2	3.2	10	5.710	175	5.83	171	5.71	175	5.830	171	84	69
65	M	233	76.6	75.3	3.6	9	6.420	155	6.54	153	6.42	155	6.540	153	84	69
	H	231	76.6	75.3	4.5	7	7.930	126	8.05	124	7.93	126	8.050	124	84	69
	L	274	88.7	87.9	3.2	10	6.720	149	6.89	145	6.72	149	6.890	145	98	75
80	M	272	89.5	88.0	4.0	8	8.360	119	8.53	117	8.36	119	8.530	117	98	75
	H	271	89.5	88.0	4.8	6	9.900	101	10.40	96	9.90	101	10.400	96	98	75
	L	354	113.9	113.1	3.6	9	9.750	102	10.00	100	9.75	102	10.000	100	124	87
100	M	352	115.0	113.1	4.5	7	12.200	82	12.50	80	12.20	82	12.500	80	124	87
	H	349	115.0	113.0	5.4	5	14.500	69	14.80	67	14.50	69	14.800	67	124	87
125	M	433	140.8	138.5	4.8	6	15.900	63	16.40	61	15.90	63	16.400	61	151	96
	H	432	140.8	138.5	5.4	5	17.900	56	18.40	54	17.90	56	18.400	54	151	96
150	M	513	166.5	163.9	4.8	6	18.900	53	19.50	51	18.90	53	19.500	51	178	96
	H	512	166.5	163.9	5.4	5	21.300	47	21.90	45	21.30	47	21.900	45	178	96

Tolerances-----------------------------------------------------------------

Thickness
Light Tubes----------- + not limited - 8%
Medium & Heavy Tubes------------ + not limited - 10 %

Length
Unless Otherwise
Specified 4 to 7 Merers

Weight
Single Tube (Light Series)------------- +10% - 8%
Single Tube (Medium and Heavy series)------------------- +-10%
For quantities per load of 10 tonnes minimum------------------- +-7.5%
(Medium and Heavy series)

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