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Technical data of black and galvanized steel pipes conforming IS : 1239/ Part I BS : 1387

 

Class

Nominal Size

(NB)

Outside Diameter

Thickness

Nominal Weight of Black Pipes

Calculated Weight of Galvanised Pipes

No. of Pipes Per 
Std. Bundle 
(Approx.)

Max.

Min.

Plain End

Screwed 

Socketed

Plain Ended

Screwed & Socketed

 

mm

inch

mm

mm

mm

swg

Kg/mtr

mtrs/tonne

Kg/mtr

mtrs/tonne

Kg/mtr

mtrs/tonne

Kg/mtr

mtrs/tonne

 

L

I

G

H

T

15

1/2

21.4

21.0

2.0

14

0.947

1056

0.956

1046

1.00

1000

1.007

993

160 

20

3/4

26.9

26.4

2.3

13

1.380

725

1.390

719

1.44

694

1.460

685

110

25

1

33.8

33.2

2.6

12

1.980

505

2.000

500

2.06

485

2.090

478

80

32

11/4

42.5

41.9

2.6

12

2.540

394

2.570

389

2.64

379

2.680

373

61

40

11/2

48.4

47.8

2.9

11

3.230

310

3.270

306

3.35

299

3.400

294

51

50

2

60.2

59.6

2.9

11

4.080

245

4.150

241

4.22

237

4.300

233

37

65

21/2

76.0

75.2

3.2

10

5.710

175

5.830

172

5.89

170

6.020

166

27

80

3

88.7

87.9

3.2

10

6.720

149

6.890

145

6.93

144

7.100

141

24

100

4

113.9

133.9

3.6

9

9.750

103

10.000

100

10.03

100

10.280

97

16

 

M

E

D

I

U

M

15

1/2

21.8

21.0

2.6

12

1.210

826

1.220

820

1.250

800

1.260

794

130

20

3/4

27.3

26.5

2.6

12

1.560

641

1.570

637

1.620

617

1.640

610

100

25

1

34.2

33.3

3.2

10

2.410

415

2.430

412

2.490

402

2.510

398

65

32

11/4

42.9

42.0

3.2

10

3.100

323

3.130

319

3.200

313

3.230

310

51

40

11/2

48.8

47.9

3.2

10

3.560

281

3.610

278

3.680

272

3.720

268

44

50

2

60.8

59.7

3.6

9

5.030

199

5.100

196

5.170

193

5.250

190

30

65

21/2

76.6

75.3

3.6

9

6.420

156

6.540

153

6.600

152

6.730

149

24

80

3

89.5

88.0

4.0

8

8.360

120

8.530

117

8.570

117

8.760

114

19

100

4

115.0

113.1

4.5

7

12.200

82

12.500

80

12.430

80

12.690

79

14

 

H

E

A

V

Y

15

1/2

21.8

21.0

3.2

10

1.440

694

1.450

690

1.480

676

1.490

671

110

20

3/4

27.3

26.5

3.2

10

1.870

535

1.880

532

1.930

518

1.950

513

80

25

1

34.2

33.3

4.0

8

2.930

341

2.950

339

3.010

332

3.040

329

55

32

11/4

42.9

42.0

4.0

8

3.790

264

3.820

262

3.890

257

3.930

254

44

40

11/2

48.8

47.9

4.0

8

4.370

229

4.410

227

4.490

223

4.540

220

37

50

2

60.8

59.7

4.5

7

6.190

162

6.260

160

6.330

158

6.400

156

27

65

21/2

76.6

75.3

4.5

7

7.930

126

8.050

124

8.110

123

8.230

122

20

80

3

89.5

88.0

4.8

6

9.900

101

10.400

96

10.150

99

10.310

97

16

100

4

115.0

113.1

5.4

5

14.500

69

14.800

68

14.740

68

14.990

67

12

 
 Tolerances :
Thickness  Light Tubes + Not limited -  8 %  
Medium and Heavy Tubes + Not limited  -10%
Mass Single Tube : Light Class +10 %           - 8 % FOR 10MT : +/- 5%
Single Tube : Medium and Heavy Class +/- 10 %           FOR 10MT : +/- 7.5%
Length Light , Medium and Heavy Tubes  Random lengths of 4 to 7 meters unless otherwise specified

 

Specification of M.S. ERW Tubes as per IS : 1161 for Structural Purposes


Size (N.B)
mm

Series

Mean O.D.
mm

Thickness

Weight Kg/M/P/E

Meter per Tonne

15

Light

21.3

2.00

0.947

1056

 

Medium

 

2.60

1.21

826

 

Heavy

 

3.20

1.44

694

20

Light

26.9

2.30

1.38

725

 

Medium

 

2.60

1.56

641

 

Heavy

 

3.20

1.87

535

25

Light

33.7

2.60

1.98

505

 

Medium

 

3.20

2.41

415

 

Heavy

 

4.00

2.93

341

32

Light

42.4

2.60

2.54

394

 

Medium

 

3.20

3.10

323

 

Heavy

 

4.00

3.79

264

40

Light

48.3

2.90

3.23

310

 

Medium

 

3.20

3.56

281

 

Heavy

 

4.00

4.37

229

50

Light

60.3

2.90

4.08

245

 

Medium

 

3.60

5.03

199

 

Heavy

 

4.50

6.19

162

65

Light

76.1

3.20

5.71

175

 

Medium

 

3.60

6.42

156

 

Heavy

 

4.50

7.93

126

80

Light

88.9

3.20

6.72

149

 

Medium

 

4.00

8.36

120

 

Heavy

 

4.80

9.90

101

90

Light

101.6

3.60

8.70

115

 

Medium

 

4.00

9.63

104

 

Heavy

 

4.80

11.50

87

100

Light

114.3

3.60

9.75

103

 

Medium

 

4.50

12.20

82

 

Heavy

 

5.40

14.50

69

 

Tolerances

 
OUT SIDE DIAMETER
Upto & including 48.3 mm +0.4mm-0.8mm
Over 48.3mm +/- 1.0%
   
THICKNES - ALL SIZES
Welded Tubes + Not Limited - 10%
   
WEIGHT
Single Tubes ( Light) + 10 % - 8%
Single Tubes ( Medium & Heavy) +/- 10%
Ten Tonnes Lot ( Light) +/- 5 %
Ten Tonnes Lot ( Medium & Heavy) +/- 7.5%
   
PHYSICAL PROPERTIES
Grade YSt 210 YSt 240
Tensile Strenght (Min) 330 MPa  410 MPa
Yield Stress ( Min) 210MPa  240MPa
Elongation on Gauge Length 5.65 20%   17%
   
Note :
1MPa = 1N/mm2 = 0.102 kgf /mm2
Elongation % for Tubes upto & including
25mm N.B. for all grades -12% (Min.)