GOST 20295-85

JSC "Uraltekhmarket" offers Pipe rolling, appropriately GOST 20295-85.

According to GOST 28548-90 "welded pipe" is a product made of strips or sheet metal by molding and subsequent welding.

Alloy additives in the steel, increase the strength characteristics of pipes.


This standard applies to steel welded and spirally welded pipes with a diameter of 114 - 1420 mm, used for building main gas and oil pipelines, oil-products pipelines, process and field pipelines.

Complies with GOST 20295-85 (153 kb)

Pipe is manufactured in three types:

1 - pipes with diameter of 114 - 630 mm, made contact Noah welded high-frequency currents;

2 - spirally with a diameter 159 - 820 mm, made by arc welding;

3 - pipes in diameter 530 - 1420 mm, made of electric arc welding with one or two longitudinal seams.

Depending on the mechanical properties of the pipes made strength classes: 34, 38, 42, 50, 52, 54, 55, 56, 60.

The pipe dimensions shall be as given in table. 1.

Pipes are made in length from 10.6 to 12.2 m incl.

By agreement with the consumer allowed to supply pipes length: 1 to 18.0 m, type 2 - up to 13.7 m, 3 - to 24.8 m incl.

For pipes types 1, 2 and ekspedirovaniem type 3 is permitted to produce up to 10% of pipes (by weight) of length less than 8.0 m

Limit deviations of the outside diameter of the casing pipe must comply with:

 

Outer size

Limit deviations

От 114 до 140 включ.

± 1,1

146

± 1,2

159 и 168

± 1,5

Св. 168 до 325 включ.

± 2,0

« 325 « 426 «

± 2,2

« 426 « 630 «

± 3,0

« 630 « 1420 «

± 4,0

At the request of the consumer, the maximum deviations for the outside diameter of casing pipe type diameter of 2 159 - 377 mm should fit

 

The outer diameter

Limit deviation

159 и 168

±1,2

Св. 168 до 325 включ.

±1,5

377

±2,0

 

Limit deviation of the wall thickness must comply with:

- for pipes of types 1 and 2, double seam pipe type 3 all sizes, as well as single-joint pipe type 3 with a diameter less than 1220 mm limit deviations of the thickness of the hire stipulated by GOST 19903 to the maximum width and the normal accuracy of rolling;

for single-joint pipe type 3 with a diameter of 1220 mm - ± 10% of wall thickness, but not more than ± 1.5 mm.

Pipe manufactured in accordance with the requirements of this standard on technological regulations, approved in the prescribed manner.

Pipe shall be manufactured from hot rolled, heat treated, or after a controlled rolling of sheet and strip rolled from a quiet, semi-killed carbon steel with the restriction of the mass fraction of carbon not over 0.24 percent and low-alloy steel normalized carbon equivalent of no more than 0.46 percent. Chemical composition of carbon steel shall meet the requirements of GOST 380 and GOST 1050, low alloyed steel - GOST 19281 and other regulatory documents, duly approved.

The advantages of working with JSC "Uraltekhmarket"


  •  Pipe welded - vast assortment

  •  quality and reliability, availability of certificates and licenses for products

  •  long-standing relationships with manufacturers

  •  the presence of branch offices and own warehouses

  •  friendly service and individual approach

  •  the possibility of online ordering catalog

ABOUT US

JSC "URALTEKHMARKET" is a team of qualified professionals.
The main objective of which is acquisition of enterprises products.
We work with companies in all sectors hozyayst.
Take on the role of OMTS.
Specilities in a more focused segment, we guarantee the optimum solution of tasks of any complexity.
This approach allows to minimize the cost of materials and logistics.

OUR SUPPLIERS

CONTACTS

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    623100, РОССИЯ Свердловская обл.,
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