Steel pipes
Steel pipes

Steel Pipes Water and Gas

All types of steel pipes  for water and gas with or without zinc coating, threaded by cutting or by smelting or not threaded, that are made with nominal diameter and wall thickness according to GOST 3262-75.

Assortment of pipes must correspond to GOST 3262-75.

The pipes are made with lengths:

  • standardized lengths - from 4m to 12m;
  • proportional to standardized lengths - not more than standardized size, with  an allowance for each cut of 5 mm and a longitudinal deviation of the entire length + 10 mm;
  • non-standardized lengths, within standardized lengths.

By agreement between manufacturer and consumer in every batch of non-standardized length pipes there may be up to 5% of the pipes with lengths from 1.5 to 4 m.

For threading purposes, done by rolling, the pipe inner diameter can be decreased by up to 10% along the thread.

The mass of every 1m of pipe is calculated with steel density of 7,85 g/cm3. Zinc coated pipes are heavier than non-zinc coated by 3%.

Water and gas steel pipes are separated by precision class:

  • normal precision
  • increased precision

Normal precision steel pipes for water and gas are made from steel grades listed in GOST 380 and GOST 1050 without the norming of mechanical properties and chemical composition. These pipes are used for water supply, gas supply, and heating systems.

Increased precision water and gas steel pipes are made from steel grades according to GOST 1050 without the norming of mechanical properties or chemical composition. This type of pipes is used for parts of water and gas supply machinery.

Steel pipes for water and gas are electrically wielded (with reinforced seams). Depending on the thickness of the pipe wall can be light, ordinary and reinforced. The wall thickness is normalized according to GOST 3262-75.

With the requirement from the consumer ordinary and reinforced pipes with inner diameter of more than 10mm can be threaded from both ends. The thread can be long or short. Pipes can be supplied without thread, without coupling (wo/ t, wo/c), or with a threaded coupling with (w /t, w/ c).

Sometimes the size of the steel water-gas pipes stated in inches.

Explanation inches:

8mm - quarter of an inch; half an inch - 15 mm; three-quarters of an inch - 20 mm; inch - 25 mm; inch and a quarter - 32 mm; half an inch - 40 mm; two inches - 50 mm; two and a half inches - 65 mm; 4 inches - 100mm.

 

ASSORTMENT
Name Size Length Weight 1 pc/kg
Steel pipe water and gas GOST 3262, 10704 15x2.5 5.8 7.5
Steel pipe water and gas GOST 3262, 10704 12x2.8 9 12
Steel pipe water and gas GOST 3262, 10704 20x2.5 5.8 10
Steel pipe water and gas GOST 3262, 10704 25x2.8 5.8 13.5
Steel pipe water and gas GOST 3262, 10704 25x2.8 12 26
Steel pipe water and gas GOST 3262, 10704 32x2.8 5.8 17
Steel pipe water and gas GOST 3262, 10704 40x3 10 35
Steel pipe water and gas GOST 3262, 10704 50x3 10 44
Steel pipe water and gas GOST 3262, 10704 65x3.2 10 62
Steel pipe water and gas GOST 3262, 10704 80x3.5 10 75
Steel pipe water and gas GOST 3262, 10704 102x3.5 11.7 104
Steel pipe water and gas GOST 3262, 10704 102x4 11.7 118
Steel pipe water and gas GOST 3262, 10704 108x3.5 11.7 111
Steel pipe water and gas GOST 3262, 10704 108x4 11.7 129
Steel pipe water and gas GOST 3262, 10704 114x4 11.7 132
Steel pipe water and gas GOST 3262, 10704 127x4 11.7 147
Steel pipe water and gas GOST 3262, 10704 133x4 11.7 155
Steel pipe water and gas GOST 3262, 10704 159x4 11.7 187
Steel pipe water and gas GOST 3262, 10704 159x4.5 11.7 207
Steel pipe water and gas GOST 3262, 10704 219x6 11.7 370
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