Gourav Mittal
Gourav Mittal

Welded Pipes & Tubes

A stainless steel pipe system is the product of choice for carrying corrosive or sanitary fluids,
slurries and gases, particularly where high pressures, high temperatures or corrosive
environments are involved. Due to stainless steel’s aesthetic properties, stainless steel pipe is
also used in architectural applications

Welded Pipes and Tubes

Welded pipe is also called EWR (Electric Resistance Welded) pipe. Most common specification for welded carbon steel pipe is A53.

Welded pipe is formed by rolling steel strips through a series of grooved rollers that mold the material into a circular shape. Next, the unwelded pipe passes by welding electrodes. These devices seal the two ends of the pipe together.

Welded steel pipe is one pipe the surface has the steel pipe join which is use the steel belt or steel plate material through the bending deformation into round, square, etc, then welded into shape. Welded steel pipes products are widely used in boilers, ship building lightweight structural steel of doors and windows, furniture, agricultural machinery, scaffolding, wire conduit, top shelves, containers, etc, which can meet customer requirements, the special specifications welded pipe can be processed according to the user requirements. Welded pipes for conveying water, sewage, gas, air, heating, steam and other low pressure fluid and other uses.

Chemical Composition

Header

Grade

USA - Canada/ AISI - ASTM - ASME

% C (Max)

% Mn (Max)

% P (Max)

% S (Max)

% Si (Max)

% Cr

% Ni

% Mo

% N (Max)

% Cu (Max)

% Others

Austenitic

304

304

0.08

2.00

0.045

0.030

0.75

18.00 - 20.00

8.00 - 10.50

-

0.10

-

-

304L

304L

0.03

2.00

0.045

0.030

0.75

18.00 - 20.00

8.00 - 12.00

-

0.10

-

-

316

316

0.08

2.00

0.045

0.030

0.75

16.00 - 18.00

10.00 - 14.00

2.00 - 3.00

0.10

-

-

316L

316L

0.03

2.00

0.045

0.030

0.75

16.00 - 18.00

10.00 - 14.00

2.00 - 3.00

0.10

-

-

Mechanical Properties

Header

Grade

Tensile Strenght Mpa (Min.)

Yield Strength Mpa (Min.)

%Elongation (Min.)

Hardness BHN (Max.)

Hardness RB (Max.)

INDIA / IS Letter Symbol

INDIA / IS Numerical Symbol (ISS)

UNS Designation

GERMANY / DIN Designation

JAPAN / JIS

USSR / GOST

Austenitic

304

515

205

40

201

92

X04Cr19Ni9 X04Cr19Ni10

304SI/304s2

S30400

X5CrNi1810

SUS304

08Ch18N10

304L

485

170

40

201

92

-

-

S30403

X2CrNi1911 G-X2CrNiN189

SUS304 L SCS19

03Ch18N11

316

515

205

40

217

95

X04Cr17Ni12Mo2

316

S31600

X5CrNiMo1722

SUS316

-

316L

485

170

40

217

95

X02Cr17Ni12Mo2

316L

S31603

X2CrNiMO18143

SUS316 LSCS16

3Ch17N14M3
3Ch16N15M3

Designati on of Diameter

O/D

Nominal Wall Thickness

DIA

SCH.5S

SCH.5

SCH 10S

SCH.10

SCH.20S

SCH.30

SCH.40S

SCH.40

SCH 60

(A)

(B)

Met er MM

Wa ll Th k

Weig ht Kg/M tr

Wa ll Th k

Weig ht Kg/M tr

Wa ll Th k

Weig ht Kg/M tr

Wa ll Th k

Weig ht Kg/M tr

Wa ll Th k

Weig ht Kg/M tr

Wall Thk

Weig ht Kg/M tr

Wa ll Th k

Weig ht Kg/M tr

Wall Thk

Weig ht Kg/M tr

Wall Thk

Weig ht Kg/M tr

6

1/8

10.3

1

0.23

 

 

1.2

0.27

 

 

1.5

0.33

 

 

1.7

3

0.37

 

 

 

 

8

1/4

13.7

1.2

0.37

 

 

1.6

5

0.49

 

 

2

0.58

 

 

2.2

4

0.64

 

 

 

 

10

3/8

17.2

1.2

0.47

 

 

1.6

5

0.63

 

 

2

0.74

 

 

2.3

1

0.87

 

 

 

 

15

1/2

21.3

1.6

5

0.01

1.6

5

0.81

2.1

1

1.02

2.1

1

1.02

2.5

1.15

 

 

2.7

7

1.29

 

 

 

 

20

3/4

26.7

1.6

5

1.03

1.6

5

1.03

2.1

1

1.3

2.1

1

1.3

2.5

1.49

 

 

2.8

7

1.71

 

 

 

 

25

1

33.4

1.6

5

1.31

1.6

5

1.31

2.7

7

2.13

2.7

7

2.13

3

2.24

 

 

3.3

8

2.54

 

 

 

 

32

11/4

24.2

1.6

5

1.67

1.6

5

1.67

2.7

7

2.73

2.7

7

2.73

3

2.9

 

 

3.5

6

3.44

 

 

 

 

40

11/2

48.3

1.6

5

1.93

1.6

5

1.93

2.7

7

3.16

2.7

7

3.16

3

3.35

 

 

3.6

8

4.11

 

 

 

 

50

2

60.3

1.6

5

1.93

1.6

5

2.42

2.7

7

3.99

2.7

7

3.99

3.5

4.9

 

 

3.9

1

5.52

 

 

 

 

65

21/2

73

2.1

1

3.75

2.1

1

3.75

3.0

5

5.34

3.0

5

5.34

3.5

6

 

 

5.1

6

8.77

 

 

 

 

80

3

88.9

2.1

1

4.59

2.1

1

4.59

3.0

5

6.56

3.0

5

6.56

4

8.37

 

 

5.4

9

11.47

 

 

 

 

90

31/2

101.

6

2.1

1

5.25

2.1

1

5.25

3.0

5

7.53

3.0

5

7.53

4

9.62

 

 

5.7

4

13.78

 

 

 

 

100

4

114.

3

2.1

1

5.93

2.1

1

5.93

3.0

5

8.5

3.0

5

8.5

4.5

12.18

 

 

6.0

2

6.32

 

 

 

 

125

5

141.

3

2.7

7

9.61

2.7

7

9.61

3.4

11.74

3.4

3

11.74

5

16.8

 

 

6.5

5

2210

 

 

 

 

150

6

168.

3

2.7

7

11.47

2.7

7

11.47

3.4

14.04

3.4

3

14.04

5.5

22.08

 

 

7.1

1

28.69

 

 

 

 

200

8

219.

1

2.7

7

15

2.7

7

15

3.7

6

20.77

3.7

6

20.27

6.3

5

33.82

7.04

37.38

8.1

8

43.2

 

 

10.8

1

53.9

250

10

273.

1

3.4

22.95

3.4

22.95

4.1

9

28.2

4.1

9

28.2

6.3

5

42.41

7.8

51.81

9.2

7

61.22

 

 

12.2

82.8

300

12

323.

9

3.9

6

31.72

4.1

9

33.6

4.5

7

36.54

4.5

7

36.54

6.3

5

50.48

8.38

66.2

9.5

3

75.01

10.3

1

80.94

14.2

7

110.6

2

350

14

355.

6

3.9

6

34.86

 

 

4.7

8

41.99

6.3

5

55.53

7.9

2

68.95

9.53

82.58

9.5

3

82.58

11.1

3

96

15.0

6

128.4

2

400

16

406.

4

4.1

9

42.2

 

 

4.7

8

48.07

6.3

5

63.61

7.9

2

79.03

9.53

94.7

9.5

3

94.7

12.7

125.2

16.6

6

162.5

9

450

18

457.

2

4.1

9

47.46

 

 

4.7

8

54.15

6.3

5

71.69

7.9

2

89.1

11.1

3

124.3

2

9.5

3

106.8

3

14.2

7

158.2

7

19.0

5

209

500

2C

508

4.7

8

60.23

 

 

5.5

4

69.7

6.3

5

79.76

9.5

3

118.9

3

12.7

157.5

1

9.5

3

118.9

15.0

6

185.8

9

206

2

251.6

5

550

22

558.

8

4.7

8

65.95

 

 

5.5

4

76.75

6.3

5

87.84

9.5

3

131.0

7

12.7

173.6

6

9.5

3

131.0

7

15.8

8

216.0

4

22.2

3

298.5

5

600

24

609.

6

5.5

4

83.8

 

 

6.3

5

95.92

6.3

5

95.92

9.5

3

143.2

14.2

7

212.7

2

9.5

3

143.2

17.4

5

258.7

4

24.5

9

360.2

1

Designation of Diameter

O/D

Nominal Wall Thickness

DIA

SCH 80 S

SCH 80

SCH 100

SCH 120

SCH. 140

SCH.160

SCH.XXS

(A)

(B)

Meter MM

Wall Thk

Weight Kg/Mtr

Wall Thk

Weight Kg/Mtr

Wall Thk

Weight Kg/Mtr

Wall Thk

Weight Kg/Mtr

Wall Thk

Weight Kg/Mtr

Wall Thk

Weight Kg/Mtr

Wall Thk

Weight Kg/Mtr

6

1/8

10.3

2.41

0.47

 

 

 

 

 

 

 

 

 

 

 

 

8

1/4

13.7

3.02

0.82

 

 

 

 

 

 

 

 

 

 

 

 

10

3/8

17.2

3.2

1.12

 

 

 

 

 

 

 

 

 

 

 

 

15

1/2

21.3

3.73

1.64

 

 

 

 

 

 

 

 

4.75

1.97

7.47

2.59

20

3/4

26.7

3.91

2.93

 

 

 

 

 

 

 

 

5.54

2.93

7.82

3.69

25

1

33.4

4.55

3.29

 

 

 

 

 

 

 

 

6.35

4.3

9.09

5.53

32

11/4

24.2

4.85

4.53

 

 

 

 

 

 

 

 

6.35

5.69

9.7

7.88

40

11/2

48.3

5.08

5.49

 

 

 

 

 

 

 

 

7.14

7.35

10.16

9.69

50

2

60.3

5.54

7.6

 

 

 

 

 

 

 

 

8.71

11.26

11.07

13.65

65

21/2

73

7.01

11.59

 

 

 

 

 

 

 

 

9.53

15.15

14.02

20.72

80

3

88.9

7.62

15.51

 

 

 

 

 

 

 

 

11.13

21.67

15.24

28.11

90

31/2

101.6

8.08

18.92

 

 

 

 

 

 

 

 

 

 

16.15

34.56

100

4

114.3

8.56

22.66

 

 

 

 

11.13

28.75

 

 

13.49

34.05

17.12

41.66

125

5

141.3

9.53

31.44

 

 

 

 

12.7

40.9

 

 

15.88

49.87

19.05

58.31

150

6

168.3

10.97

43.21

 

 

 

 

14.27

55.03

 

 

18.24

68.53

21.95

79.1

200

8

219.1

12.7

65.63

 

 

15.06

76.93

18.24

91.73

20.62

102.47

23.01

112.97

22.23

108

250

10

273.1

12.7

82.8

15.06

97.27

18.24

116.38

21.41

134.9

25.4

157.51

28.58

174.95

25.4

155.5

300

12

323.9

12.7

98.95

17.45

133.88

21.41

162.14

25.4

189.82

28.58

211.31

33.32

242.4

25.4

189.82

350

14

355.6

12.7

109.04

19.05

160.54

23.8

197.74

27.76

227.88

31.75

257.47

35.71

286.04

 

 

400

16

406.4

12.7

125.2

21.41

206.4

26.19

249.34

30.94

290.88

36.53

338.32

40.46

370.74

 

 

450

18

457.2

12.7

141.35

23.8

258.29

29.36

314.54

34.93

369.34

39.67

414.74

45.24

466.67

 

 

500

2C

508

12.7

157.51

26.19

315.97

32.54

387.41

38.1

448.3

44.45

515.94

49.99

573.31

 

 

550

22

558.8

12.7

173.66

28.57

379.7

34.92

457.83

41.27

535.17

47.62

609.3

53.97

682.57

 

 

600

24

609.6

12.7

189.82

30.94

448.3

38.89

555.76

46.02

649.44

52.37

730.72

59.51

819.7

 

 

650

26

660.4

12.7

205.97

 

 

(24.66D-t) t 1000

Wt/pam + formula Weight Stainless Steel Pipe

OD (mm) – W.T. (mm) XW.T. (mm) X 0.02466 = Kg. per mtr.

700

28

711.2

 

 

12.7

222.13

750

3C

762

 

 

1270

238.28

800

32

812.8

 

 

12.7

254.44

850

34

863.6

 

 

12.7

270.5

900

36

914.4

 

 

12.7

286.75