• Seamless Steel Pipe for High Pressure Pipeline

    Seamless Steel Pipe for High Pressure Pipeline

  • Cold Drawn Tubes for Boilers and Heat Exchangers with ASME Certification

    Cold Drawn Tubes for Boilers and Heat Exchangers with ASME Certification

  • Supplier of Thick Wall Seamless Steel Tubing

    Supplier of Thick Wall Seamless Steel Tubing

Seamless Steel Pipe manufacturer in India

 

Difference between Seamless Steel Pipe and ERW Pipe

Steel pipes are designed in seamless and welded configuration types. Both the components can be distinguished on certain key characteristics.

  • A Seamless Steel Pipe is manufactured by passing hot steel billets through extruded metal to precisely shape them. These pipes don’t possess any welds or seam on their surface. This ERW Pipes is manufactured by cold rolling flat strips or sheets in a circular configuration. Here they are passed through rollers to obtain a longitudinal seam and are squeezed together using a high frequency current to weld them in place.
  • Seamless pipes showcase higher strength and 20% superior load-bearing capacity over erw pipes.
  • ERW welded Steel Pipes and Tubes are cheaper to process and manufacture in comparison to seamless components.
  • Seamless Tube has thicker and stronger walls, while erw pipes have thinner walls that are light in weight.
  • An erw pipe can be produced in different sizes and dimensions to meet different project requirements. Seamless pipes are available in sizes up to 24 inches.
  • The longitudinal weld seam is prone to rusting in different environmental conditions. The absence of seams propels the seamless grade to be tolerant to different media across stress-induced setups.
  • A seamless CDS Tube has an excellent surface finish and portrays an aesthetical outlook. Welded pipes have a rough and rigid surface finish.
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LG Pipes and Tubes
Cold Drawn Seamless Tube

Manufacturing process of Seamless Steel Pipe

Seamless pipes are designed without a weld joint or a seam and showcase a uniform structure across its length. A seamless grade Steel Tube can be processed by passing hot steel billets through an extrusion process. The billet stretches a hole through the center of the tube, and a billet shaped point piercer pushes through the grade. These billets are shaped precisely in piercing mills and increase the mold length by 20 times to shape the seamless steel pipe. Larger diameter pipes are processed in a mandrel mill processing system. The mandrel bars create a more standardized outside diameter, having controlled wall thickness. These pipes can be later stress relieved, normalized, and tempered to meet the requirements across different harsh environmental conditions.

Manufacturing process of Seamless Steel Pipe

Cold Drawn Seamless Tubes and ERW Pipe supplier in Mumbai

Welded Steel Pipe vs SAW Pipe

  • The pipes of the saw grade can be classified into longitudinal welding pipe or spiral submerged arc welding pipe. This Welded Steel Pipes is a grade that is classified into ERW, MIG, Plasma arc, GTAW, GMAW, SMAW, EBW amongst some of its types.
  • In SAW Pipes, a submerged welding arc process is employed to manufacture the grade. This welded steel pipes can be processed in an array of welding processes.
  • Most SAW welded components have weld reinforcements on the interior and exterior of the surface. This welded pipes, the surface can be slightly smooth and slick.
  • The defects in SAW pipes far outnumber those in welded grades.
  • A defective SAW grade cannot be repaired or fixed as it will induce cracking on the surface resulting in distortion of the pipe. The defective weld pipes can be easily repaired or fixed by reinforcing the welds.

Manufacturer of Seamless and Welded Cold drawn tubes according to EN 10305-1/ EN 10305-2 Specification

Hot Rolled Seamless Steel Pipes

Hot Rolled Seamless Steel Pipe

Cold Drawn Seamless Steel Pipes

Cold Drawn Seamless Steel Pipe

What is Hot Finished Welded Tubes?

What is Hot Finished Welded Tubes?

Exporter of CDS Tube in standard sizes between OD 2 Inch to 32 Inches

Seamless Steel Pipes Dimensions And Sizes

NPS Outside Diameter Schedule 5 S Schedule 10 S Schedule 20 S Schedule 40 S Schedule 80 S Schedule 160 S XXS
mm inch mm WT mm WEIGHT (KGM) WT mm WEIGHT (KGM) WT mm WEIGHT (KGM) WT mm WEIGHT (KGM) WT mm WEIGHT (KGM) WT mm WEIGHT (KGM) WT mm WEIGHT (KGM)
3 1/8 10.3 1.2 0.20 1.24 0.28 1.5 0.33 1.73 0.37 2.41 0.47 - - - -
6 1/4 13.7 1.2 0.37 1.65 0.49 2.00 0.58 2.24 0.630 3.02 0.80 - - - -
10 3/8 17.1 1.2 0.47 1.65 0.63 2.00 0.74 2.31 0.840 3.20 1.10 - - - -
15 1/2 21.3 1.65 0.80 2.11 1.00 2.30 1.07 2.77 1.27 3.73 1.62 4.75 1.94 7.47 2.55
20 3/4 26.7 1.65 1.03 2.11 1.28 2.55 1.52 2.87 1.69 3.91 2.20 5.56 2.90 7.82 3.64
25 1 33.4 1.65 1.30 2.77 2.09 2.55 1.94 3.38 2.50 4.55 3.24 6.35 4.24 9.09 5.45
32 1.1/4 42.2 1.65 1.65 2.77 2.70 3.00 2.90 3.56 3.39 4.85 4.47 6.35 5.61 9.70 7.77
40 1.1/2 48.3 1.65 1.91 2.77 3.11 3.00 3.55 3.68 4.05 5.08 5.41 7.14 7.25 11.1 10.18
50 2 60.3 1.65 2.40 2.77 3.93 3.00 4.24 3.91 5.44 5.54 7.48 8.74 11.11 11.07 13.44
65 2.1/2 73.0 2.11 3.69 3.05 5.26 4.00 6.81 5.16 8.63 7.01 11.41 9.53 14.91 14.02 20.39
80 3 88.9 2.11 4.51 3.05 6.45 4.00 8.37 5.49 11.29 7.62 15.27 11.1 21.30 15.24 27.68
100 4 114.3 2.11 5.84 3.05 8.36 4.50 12.18 6.02 16.07 8.56 22.32 13.49 33.54 17.12 41.03
125 5 141.3 2.77 9.47 3.40 11.57 5.00 16.80 6.55 21.8 9.53 30.97 15.88 49.11 19.05 57.43
150 6 168.3 2.77 11.32 3.40 13.84 6.35 25.36 7.11 28.26 10.97 42.56 18.25 67.53 21.95 79.22
200 8 219.1 2.77 14.79 3.76 19.96 6.35 33.31 8.18 42.55 12.7 64.64 23.01 111.27 22.23 107.92
250 10 273.1 3.40 22.63 4.19 27.78 6.35 41.77 9.27 60.31 12.7 96.01 28.58 172.33 25.40 155.15
300 12 323.8 3.96 31.25 4.57 36.00 6.35 49.7 9.53 73.88 12.7 132.05 33.32 238.76 25.40 186.97
350 14 355.6 3.96 34.36 4.78 41.3 7.92 67.80 11.13 94.59
400 16 406.4 4.19 41.56 4.78 47.29 7.92 77.83 12.7 123.30
450 18 457.2 4.19 46.81 4.78 53.26 7.92 87.71 14.27 155.80
500 20 508.0 4.78 59.25 5.54 68.61 9.53 117.14 15.09 183.42
600 24 610.0s 5.54s 82.47 6.35 94.45 9.53 141.12 17.48 255.41

Seamless Steel Pipe Price List

Description Grade Price List Per Unit
Hot Finished Seamless Pipes 304L 163
Seamless Pipes Size (168.3mm Od X 10.97mm Thk X 5.2-5.8m Length) 316L 174
Hot Finished Seamless Pipes C45 82
Seamless steel pipes A106 180
Searching ERW pipe manufacturers in India? Contact LG Pipes and Tubes, specialized in Seamless Pipe for oil and gas Industry

Seamless Steel Pipe Application

Shipbuilding
01
Shipbuilding
Boiler Industries
02
Boiler Industries
Oil And Gas
03
Oil And Gas
Petrochemical
04
Petrochemical
Refineries
05
Refineries
Stockist and distributor of Seamless, ERW and Welded Pipes in various grades and Schedule 40 to STD, XXS