HSL ERW Black Steel Pipes Tubes

HSL ERW Steel Pipes & Tubes Manufactured by Harso Steels, are welded black steel tubes which can be used for domestic or industrial installations, HSL ERW Black Steel Pipes & Tubes displays high mechanical strength, and for this reason performs better under tensile stress, pressure, compression, etc., therefore greater resistance to unforeseen external impact.

The standard finish is black. A range of optional treatment are available subject to enquiry. This includes Varnish Finish & Enamel Finish, all other customer requirements are subject to enquiry. The standard stock length available is 6m. Available as per IS 1239 / ASTM A53 / BS 1387

Simplicity

Isn’t Simple

  • HSL Black Steel Pipe & Tubes have a low expansion coefficient at high melting temperature, and it is for this reason that they are highly resistant to fire and high temperatures.
  • Uniform distribution of steel around the circular provides for superior Mechanical resistance
  • Smooth surface of the Tube ensures no trappings of dirt and water, minimizing corrosion reaction possibilities.
  • Pipes supplied in lengths from 10ft to 21ft
  • Produced by Electric Resistance Welded (ERW) process

HSL ERW Black Steel Pipes Tubes

Every Detail

Matters

  • At HSL it is our utter most priority to ensure precise formation of the circular steel section by even distribution of material around the axis to make for reliable strength qualities.
  • Along with our stringent quality control systems we have Online NDT Eddy Current Testing which works in synchronization with sorting system ensuring automatic segregation of flawless Tubes vs. faulty Tubes.
  • The quality control system not only marks out the rejected Tubes but also help us ensures close monitoring of our production efficiency.

HSL ERW Black Steel Pipes & Tubes

Specifications for Black Steel Pipes Conforming to IS:1239 (Part-I) 2004

Technical Details And Specifications

NB

Class

Outside Diameter

in mm

Wall Thickness

Calculated nominal weight

Sockets

Plain end

Screwed & Sockets

Min OD

Min Length

Min

Max

mm

gauge

Kg/m

M/Ton

Kg/m

M/Ton

mm

mm

15(1/2″)

L

21

21.4 2 14 0.947 1056 0.956 1046 27

37

M

21 21.8 2.6 12 1.21 826 1.22 820 27 37

H

21

21.8 3.2 10 1.44 694 1.45 690 27

37

20 (3/4″)

L

26.4

26.9 2.3 13 1.38 725 1.39 719 32.5

39

M

26.5

27.3 2.6 12 1.56 641 1.57 637 32.5

39

H

26.5

27.3 3.2 10 1.87 535 1.88 532 32.5

39

25(1″)

L

33.2

33.8 2.6 12 1.98 505 2 500 39.5

46

M

33.3

34.2 3.2 10 2.41 415 2.43 412 39.5

46

H

33.3

34.2 4 8 2.93 341 2.95 339 39.5

46

32(1/1/4″)

L

41.9

42.5 2.6 12 2.54 394 2.57 389 49

51

M

42

42.9 3.2 10 3.1 322

3.13

319

49

51

H

42

42.9 4 8 3.79 264 3.82 262 49

51

40(1 1/4″)

L

47.8

48.4 2.9 11 3.23 310 3.27 306 56 51

M

47.9 48.8 3.2 10 3.56 281 3.6 278 56 51

H

47.9 48.8 4 8 4.37 229 4.41 227 56 51
50 (2″) L 59.6 60.2 2.9

11

4.08

245 4.15 241 68

60

M

59.7 60.8 3.6 9 5.03 199 5.1 196 68

60

H 59.7 60.8

4.5

7 6.19 161 6.26 160 68

60

65(2 1/2″) L 75.2

76

3.2

10 5.71 175 5.83 172 84 69

M

75.3

76.6

3.6

9

6.42 156 6.54 153 84

69

H 75.3 76.6 4.5 7 7.93 126 8.05

124

84

69

80 (3″)

L

87.9

88.7

3.2 10 6.72 149 6.89 145 98

75

M

88

89.5 4 8 8.36 120 8.53 117 98

75

H

88

89.5 4.8 6 9.9 101 10.1 99 98

75

100(4″)

L

113

113.9 3.6 9 9.75 102 10 100 124

87

M

113.1

115 4.5 7 12.2 82 12.5 80 124

87

H

113.1

115 5.4 5 14.5 69 14.8 68 124

87

125(5″)

M

138.5

140.8 4.8 6 15.9 63 16.4 61 151

96

H

138.5

140.8 5.4 5 17.9 56 18.4 54 151

96

150(6″)

M

163.9

166.5 4.8 6 18.9 53 19.5 51 178

96

H

163.9

166.5 5.4 5 21.3 47 21.9 46 178

96

Tolerances As Per IS: 1239- 2004

A. Thickness

Tolerance

B. Weight

Tolerance

C. Length

1. Light Tubes +Not Limited

-8%

1. Single Tube (light series) +10%

-8%

Length Unless Otherwise Specified Random Length of 4 to 7 meters
2. Medium and Heavy Tubes +Not Limited

-10%

2. Single Tubes (medium & heavy series) ± 10%
3. For quantities per load of 10 Tons min. (Light series) +7.5%

-5%

4. For quantities per load of 10 Tons min. (medium & heavy series) ±7.5%