GOST 550-75

JSC "Uraltekhmarket" offers Pipe rolling, appropriately GOST 550-75.

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SEAMLESS STEEL TUBES FOR PETROLEUM PROCESSING AND PETROCHEMICAL INDUSTRY

This standard applies to steel pipes for oil refining and petrochemical industry.

Assortment complies with GOST 550-75 (457 kb) .

ASSORTMENT

1. Depending on the purpose of the pipe shall be made of groups A and B.

2. The dimensions of cold, warm and hot-deformed pipes of group A shall be as specified in table. 1, cold and warm groups B, GOST 8734, hot-B - GOST 8732.

ASSORTMENT

1. Depending on the purpose of the pipe shall be made of groups A and B.

2. The dimensions of cold, warm and hot-deformed pipes of group A shall be as specified in table. 1, cold and warm group B - GOST 8733. Pipe group A shall be constructed of standard length in accordance with table. 1, the minimum length should be at least 4 m.

The length of the tubes of group B must comply with the requirements of GOST 8732, GOST 8734.

4. The maximum deviations of tubes of group A must comply with the highest quality and should not exceed:

the outside diameter

for cold and warm tubes of steel grades 10 and 20 to GOST 9567,

for pipes made of alloy steel:

with a diameter of 30 mm ±0.2 mm,

with a diameter of over 30 mm - ±0.3 mm,

for hot-deformed pipes

wall thickness

for cold and warm tubes - ± 8 %,

for hot-deformed pipes with a wall thickness of:

up to 15 mm ± 12,5 %,

more than 15 mm ± 10 %.

Limit deviations for outer diameter and wall thickness of the tubes of group B for the highest quality category must conform to the GOST 8734 and manufacturing high precision pipes according to GOST 8732, and for the first quality class must match the regular accuracy of manufacturing of pipes according to GOST 8732.


Notes:

1. Pipe, the dimensions of which are shown in parentheses, are used for repairs only.

2. In coordination with the consumer pipe can be made longer than indicated in the table. 1. This allowed the manufacture of pipes, welded, number of welds not more than one per pipe.

3. Pipe diameter up to 57 mm are made cold. Pipes with diameter 57 mm and more are manufactured hot.

4. On customer's request pipe diameter 6 - 102 mm produce length up to 7 m, the pipe diameter of 108 - 159 mm produce length up to 9 m.

5. Ovality and raznoshennoy pipes must not exceed:

group A - limit deviations for outer diameter and wall thickness for steel grades 10, 20 and 0.8 of the limit deviations for outer diameter and wall thickness for steel of other grades;

group B - tolerances for outside diameter and wall thickness specified in GOST 8732, GOST 8734.

6. The curvature of any section of pipe bands And should not exceed 1.5 mm per 1 m, the curvature on the whole length of the pipe should not exceed 8 mm.

The maximum curvature of the pipe B group - according to GOST 8732, GOST 8734.

7. Maximum deviations along the length of the tubes of groups A and B must not exceed:

+10 mm - at length of pipes up to 6 m;

+15 mm - at length of pipes more than 6 m, or of an external diameter exceeding 152 mm.

The advantages of working with JSC "Uraltekhmarket"


  •  Cold-deformed pipes - 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

  •  (3439) 626-505

  •  Legal address

    620075, РОССИЯ г.Екатеринбург,
    ул.Толмачёва,
    дом 13, офис 2.

  •  Additional office

    623100, РОССИЯ Свердловская обл.,
    г.Первоуральск,
    ул.Вайнера д.45В 3 этаж. офис 15.