Innovation technologies plant

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Structural tubes

Structural tubes

The company produces seamless steel cold-rolled tubes for electrical submersible pumps (ESP) and submersible motors. Tubes are made of hot-rolled round billets, delivered pursuant to proper standards. Tubes are produced by cold rolling method.

Material of seamless steel cold-rolled tubes

  • structural steel grade 20, 35, 35Г pursuant to TU 14-3-1941-94, TU 14-3Р-134-2014;
  • corrosion-resistant steel grade12Х18Н10Т, ultimate strength is up to 100 kilogram-force/mm2.

Inner diameter, mm Wall thickness, mm Inner diameter accuracy Wall thickness deviation Ovality, mm not more Straightness of inner diameter, mm Inner surface roughness, micrometer not more Length, m Steel grade
60 4,5 H10 ±0,27 0,05 0,15 0,4 12 20,35, 35Г, 12Х18Н10Т
60 5,5 ±0,33
70 5,5 ±0,33
70 5,5 ±0,33
75 5,5 ±0,33
76 5,0 ±0,30
76 4,9
80 6,0 ±0,36
86 5,0 ±0,30
85 5,5 ±0,33
80 8,0 ±0,48
88,9 6,35
88,9 6,35
92 5,5±0,33
90 6,5 ±0,39
90 8,5 ±0,51
100 7,0 ±0,42
104,83 5,5
105 5,5 ±0,33
105 5,5
104,92 6,0
105 6,0 ±0,36
110 6,5 ±0,39
118 6,0 ±0,36 10
122 7,0 ±0,42 10
122,43 7,0 10
122,4 7,15 10

We provide

  • production of displaced tolerant zone tubes in inner and outer diameter;
  • production of high working accuracy tubes and tubes with high mechanical properties at the customer’s request;
  • prompt adoption of tubes with any diameter within 60 and 125 mm (by outer diameter).

Engineers of CJSC “IOMZ” developed innovative technology to produce tubes and this made possible not only to improve tubes quality but also to exclude harmful working conditions: no etching treatment, no drawing operations with use of lubricants necessary to utilize.

We can provide machine straightening of tubes by outer diameter within 80-200 and length 4,5-17 m.

Achieved curvature is up to 0,2 mm depending on billet initial state, surface finish and mechanical properties.

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