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ERW Black Steel Pipes, Tubes

As one of the leading suppliers of black steel pipes in Mumbai, We are Industries (Steel Pipes & Tube Division) stocks an extensive range of electric resistance welded (ERW) black steel pipes / black steel tubes in a size range of 15mm. N.B. to 150mm N.B. in the Light, Medium and Heavy classes, confirming to IS: 1239 (Part-1) 2004, Equivalent to BS : 1387. We are also offers mild steel pipes in compliance with IS: 3589-2001 and IS: 10577-1982.
All black steel pipes and black tubes supplied by we are produced in accordance with ASTM /IS/BS specifications. At, we strictly adhere the scheme of Testing and Inspecting laid down by the Bureau of Indian Standards (BIS) – IS:1239 & IS:3589. We can offer black steel tubes and pipes beveled or plain ended.

Black Steel Pipes, Black Tubes Dimensions Confirming to IS: 1239 (Part – I) – 2004, Equivalent to BS – 1387 / 1985

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 2.65 0.493
1/4″ 6 mm 0.532 13.49 1.80 0.517 2.35 0.407 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

Big Diameter Black Steel Pipes, Black ERW Pipes Confirming to IS 3589, Grade FE330, Grade FE410

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

Black Steel Pipes, Black Steel Tubes Tolerance as per IS:1239

(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

Black Steel Pipes, Black Tubes Product, Stock Range

Size: 15mm NB to 150mm NB (1/2” to 6”), 7″ (193.7mm OD to 20″ 508mm OD)
Dimension & Tolerance: Black Steel Pipes Dimensions – IS: 1239 (Pt I) – 2004, Equivalent to BS – 1387 / 1985
Specifications: IS – 1239 (Part -1) 2004, Equivalent to BS – 1387 / 1985
Surface Finish: Black
Features: High Strength, Corrosion Resistant, High Toughness and Deformability
Length: As per customer’s requirement (Maximum upto 7 meters)
Features: High Strength, Corrosion Resistant, High Toughness and Deformability
What are the Applications of Black Steel Pipes and Black Steel Tubes?

  1. Industrial Water Lines, Plant Piping
  2. Agriculture and Irrigation
  3. Galvanized Steel Fencings
  4. Road Barriers
  5. Parking Barriers
  6. Temporary Fencings
  7. Steel Gates & Windows
  8. Road Side Railings
  9. Structural and fabrication work
  10. Water Pipelines
  11. Sewerage Systems
  12. Oil Pipe Lines
  13. Oil Refinery Piping, Crude Oil Piping
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