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
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