IS 1161

Industries We Serve

Specification IS-1161

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N.B and series	Outside Diametar	Wall Thicness	Plain and Tubes
mm	Min.	mm /SWG	Kg./M	Mtrs./Ton

15 L	21.3	2.00	0.947	1058
M		2.60	1.21	826
H		3.20	1.44	694

20 L	26.9	2.30	1.38	725
M		2.60	1.56	641
H		3.20	1.87	535

25 L	33.7	2.60		505
M		3.20	2.41	415
H		4.00	2.93

32 L	42.4	2.60	2.54	394
M		3.20	3.10	323
H		4.00	3.79	264

40 L	48.3	2.90	3.23	310
M		3.20	3.56	281
H		4.00	4.37	229

50 L	60.3	2.90	4.08	245
M		3.60	5.03	199
H		4.50	6.19	162

65 L	76.1	3.20	5.71	175
M		3.60	6.42	156
H		4.50	7.93	126

80 L	88.9	3.20	6.72	149
M		4.00	8.36	120
H		4.80	9.90	101

90 L	101.6	3.60	8.70	115
M		4.00	9.63	144
H		4.80	11.50	87

100 L	114.3	3.60	9.75	103
M		4.50	12.20	82
H		5.40	14.50	69

110 L	127.0	4.50	13.60	74
M		4.80	14.50	69
H		5.40	16.20	62

125 L	139.7	4.50	15.00	67
M		4.80	15.90	63
H		5.40	17.90	56

135 L	152.4	4.50	16.40	61
M		4.80	17.50	57
H		5.40	19.60	51

150 L	165.1	4.50	17.80	56
M		4.80	18.90	52
H		5.40	21.30	47

150 L	168.3	4.50	18.20	55
M		4.80	19.40	52
H1		5.40	21.70	46
H2		6.30	25.20	40

175 L	193.7	4.80	22.40	45
M		5.40	25.10	40
H		5.90	27.30	37

200 L	219.1	4.85	25.40	39
M		5.60	29.50	34
H		5.90	31.00	32

225 H	244.5	5.90	34.70	29

250 H	273.0	5.90	38.90	26

300 H	323.9	6.30	49.30	20

350 H	355.6	8.00	68.60	15

TOLERANCES :
(a) Outside Diameter:
1. Upto and Including 48.3mm           + 0.4 mm
                                                          - 0.8 mm

2. Over 48.3mm                                 +/-1 Percent

(c) Thickness : + Not Limited
- 10 Percent

(b) Weight :
1. Single Tubes                                     + 10 Per Cent
(Light Series)                                        - 8 Per Cent

2. Single Tube                                       + 10 Per Cent
(Mediuam and Heavy Tubes)                 - 10 Per Cent

3. 10 Tonne lots                                   + 5 Per Cent
(Light Series)                                        - 5 Per Cent

4. 10 Tonne lots                                  + 7.5 Per Cent
(Medium and Heavy Series)                 - 7.5 Per Cent

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Specification IS-1161

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