Dimensions & Sizes for Mild Steel Pipes Confirming to IS : 1239 (PART I) – MS Pipes Sizes in India

Nominal Bore		Outside Diameter		Light (A-Class) Thickness Weight		Medium (B-Class) Thickness Weight		Heavy (C-Class) Thickness Weight
Inch	mm	Inch	mm	mm	kg/mtr	mm	kg/mtr	mm	kg/mtr
1/8″	3 mm	0.406	10.32	1.80	0.361	2.00	0.407	2.65	0.493
1/4″	6 mm	0.532	13.49	1.80	0.517	2.35	0.650	2.90	0.769
3/8″	10 mm	0.872	17.10	1.80	0.674	2.35	0.852	2.90	1.02
1/2″	15 mm	0.844	21.43	2.00	0.952	2.65	1.122	3.25	1.45
3/4″	20 mm	1.094	27.20	2.35	1.410	2.65	1.580	3.25	1.90
1″	25 mm	1.312	33.80	2.65	2.010	3.25	2.440	4.05	2.97
1.1/4″	32 mm	1.656	42.90	2.65	2.580	3.25	3.140	4.05	3.84
1.1/2″	40 mm	1.906	48.40	2.90	3.250	3.25	3.610	4.05	4.43
2″	50 mm	2.375	60.30	2.90	4.110	3.65	5.100	4.47	6.17
2.1/2″	65 mm	3.004	76.20	3.25	5.840	3.65	6.610	4.47	7.90
3″	80 mm	3.500	88.90	3.25	6.810	4.05	8.470	4.85	10.1
4″	100 mm	4.500	114.30	3.65	9.890	4.50	12.10	5.40	14.4
5″	125 mm	5.500	139.70	–	–	4.85	16.20	5.40	17.8
6″	150 mm	6.500	165.10	–	–	4.85	19.20	5.40	21.2

Dimensions of Big/Large Diameter ERW Pipes Confirming to IS 3589 Standard

Wall Thickness	NominalBore 7″ NB 193.7 mm OD	NominalBore 8″ NB 219.1 mm OD	NominalBore 10″ NB 273 mm OD	NominalBore 12″ NB 323.7 mm OD	NominalBore 14″ NB 355.6 mm OD	NominalBore 16″ NB 406.4 mm OD	NominalBore 18″ NB 457mm OD	NominalBore 20″ NB 508 mm OD
mm	Kg/mtr	Kg/mtr	Kg/mtr	Kg/mtr	Kg/mtr	Kg/mtr	Kg/mtr	Kg/mtr
4.85	22.59	25.62	32.07	38.13	–	–	–	–
5.20	24.17	27.43	34.34	40.85	–	–	–	–
5.60	26.00	29.28	36.93	43.93	48.11	–	–
6.00	27.88	31.53	39.50	47.02	51.49	61.00	69.00	–
6.35	29.34	33.28	41.73	49.67	54.43	62.35	70.50	78.50
7.01	32.77	36.76	46.43	55.45	61.82	69.04	–	–
7.94	–	41.00	50.95	61.85	67.98	77.94	87.80	–
8.18	–	42.56	53.42	65.12	–	–	–	–
9.53	–	51.50	60.24	73.75	81.21	93.13	105.00	117.00
12.70	–	–	–	–	107.28	123.30	139.00	155.00

Tolerance on Thickness and Weight : as per IS 1239 The following manufacturing tolerance shall be permitted on the tubes and sockets.

MAXIMUM PERMISSIBLE PRESSURE AND TEMPERATE FOR TUBES WITH STEEL COUPLINGS OR SCREWED AND SOCKETED JOINTS

(a) Thickness
(1)	Butt welded Light tubes	+Not limited – 8 percent
	Medium and Heavy tubes	+ Not Limited – 10 percent
(2)	Seamless Tubes	+Not Limited – 12.5 percent


(b) Weight :
(1)	Single tube (light series)	+10 percent – 8 percent
(2)	Single tube (medium & heavy Series)	+10 percent

Nominal Bore mm

Maximum Permissible Pressure N/mm2

Kg./cm2

Maximum PermissibleTempreature 0C

Up to and Including 25 mm

1.20

12.24

260

Over 25 mm up to and Including 40 mm

1.03

10.50

260

Over 40 mm up to and Including 80 mm

0.86

8.77

260

Over 80 mm up to and Including 100 mm

0.69

7.04

260

0.83

8.77

177

Over 100 mm up to and Including 125 mm

0.69

7.04

171

Over 125 mm up to and Including 150 mm

0.50

5.10

160

For tubes fitted with appropriate flanges of suitably butt welded together, the Max, permissible pressure shall be 21.00 Kg/cm2 and Max. permissible temp. 260 C

Square & Rectangular MS Welded Pipes – Hollow Sections Dimensions, as per IS 4923

SQUARE HOLLOW SECTIONS (SHS)
SECTION SHS(MM)	Depth D (mm)	Width B (mm)	Thickness T (mm)	Weight W (Kg/m)	Mts./ Tonne
16×16	16.00, 16.00	16.00, 16.00	1.80, 2.40	0.83, 1.07	1204, 935
19×19	19.00, 19.00	19.00, 19.00	1.80, 2.40	0.99, 1.29	1010, 775
25×25	25.00, 25.00	25.00, 25.00	2.60 3.20	1.69, 1.98	592, 505
30×30	30.00, 30.00, 30.00	30.00, 30.00, 30.00	2.60, 3.20, 4.00	2.10, 2.49, 2.94	476, 402, 340
40×40	40.00, 40.00, 40.00, 40.00	40.00, 40.00, 40.00, 40.00	2.60, 3.20, 3.60, 4.00	2.92, 3.49, 3.85, 4.20	342, 287, 260, 238
50×50	50.00, 50.00	50.00, 50.00	2.90, 3.20	4.35, 4.77	230, 210
70×70	70.00, 70.00, 70.00	70.00, 70.00, 70.00	3.20, 4.00, 4.80	6.71, 8.22, 9.66	149, 122, 104
80×80	80.00, 80.00, 80.00	80.00, 80.00, 80.00	3.60, 4.50, 4.90	9.38, 11.52, 12.44	107, 87, 80
100×100	100.00, 100.00, 100.00	100.00, 100.00, 100.00	3.60, 4.50, 5.40	9.67, 11.88, 14.01	103, 84, 71
120×120	120.00, 120.00	120.00, 120.00	4.80, 5.40	15.92, 17.74	63, 56
132×132	132.00, 132.00	132.00, 132.00	4.80, 5.40	18.71, 20.88	53, 48
150×150	150.00	150.00	5.00	22.26	45

RECTANGLAR HOLLOW SECTIONS (RHS)
SECTION SHS (mm)	Depth D (mm)	Width B (mm)	Thickness T (mm)	Weight W (Kg/m)	Mts./Tonne
30X20	30.00	20.00	2.00	1.47	680
40X20	40.00	20.00	2.00	1.78	562
50X25	50.00, 50.00	25.00, 25.00	2.90, 3.20	2.98, 3.24	336, 309
60X40	60.00	40.00	2.90	4.12	243
66X33	66.00, 66.00, 66.00	33.00, 33.00, 33.00	2.90, 3.60, 4.50	4.07, 4.93, 5.95	246, 203, 168
70X30	70.00, 70.00, 70.00	30.00, 30.00, 30.00	2.90, 3.20, 4.00	4.12, 4.50, 5.45	243, 222, 183
80X40	80.00, 80.00, 80.00	40.00, 40.00, 40.00	2.90, 3.20, 4.00	5.03, 5.50, 6.71	199, 182, 149
96X48	96.00, 96.00, 96.00	48.00, 48.00, 48.00	3.20, 4.00, 4.80	6.71, 8.22, 9.66	149, 122, 104
122X61	122.00, 122.00, 122.00	61.00, 61.00, 61.00	3.60, 4.50, 5.40	9.67, 11.88, 14.01	103, 84, 71
145X82	145.00, 145.00	82.00, 82.00	4.80, 5.40	15.92, 17.74	63, 56
172X92	172.00, 172.00	92.00, 92.00	4.80, 5.40	18.71, 20.88	53, 48

Mechanical Properties of MS Welded Pipes as per IS Standard

GRADE	T.S. (min)	Y.S. (min)	Elongation
GRADE	Mpa	Mpa	25.4 mm & under	Over 25.4 mm
YST-210, YST-240, YST-310	330, 410, 450	210, 240, 310	12, 10, 8	20, 15, 10

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Mild Steel Pipes Dimensions – IS 1239, IS 3589, IS 4923

Dimensions & Sizes for Mild Steel Pipes Confirming to IS : 1239 (PART I) – MS Pipes Sizes in India

Dimensions of Big/Large Diameter ERW Pipes Confirming to IS 3589 Standard

Square & Rectangular MS Welded Pipes – Hollow Sections Dimensions, as per IS 4923

Mechanical Properties of MS Welded Pipes as per IS Standard

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