Dimensions of steel pipes. Dimensions of steel pipes welded

Date:

2020-05-09 22:20:29

Views:

487

Rating:

1Like 0Dislike

Share:

Table of contents:

Steel pipe are widely used in various industries. Apply them in engineering, oil & gas, utilities, etc. types of steel metal tubes there are several. They can vary according to the method of manufacture, size and type used for the production of the material. Dimensions of steel pipes of different types defined by Standards.

assortment of steel tubes

Seamless products

Basically all modern steel pipe are divided into two large groups: hot rolled and welded. The first kind is more cost. Therefore, use these products less frequently than welded. Assortment of seamless steel pipes GOST 8732-78 is determined. The ratio of the size of such pipes and their weights are given in special tables. Parameters can be, for example, as shown below.

Size

Weight of 1 m

38х4 mm

3.35 kg

70h5 mm

8.02 kg

108х10 mm

24.17 kg

219х8 mm

41.63 kg

377х9 mm

81.68 kg

426х10 mm

102.59 kg

Dimensions of steel pipe welded and manufactured through furnace welding is discussed below. Their parameters are also exactly determined Standards.

welded steel pipes assortment

How to make seamless pipe

Producing a product of this variety of steel grades 35 and 45 on the continuous mill. It uses the so-called black billet. The latter are sewn in a roller mill, and then sent to a circular saw to trim the ends of the pipe. Then the finished product arrives on konovalovy machine for straightening and reducing the ovality of cross section.

Welded pipe: the reasons for the popularity

Products of that type, as already mentioned, are more popular than seamless. These pipes are used in the national economy is already quite a long time. However, in recent years their popularity has increased significantly. This is due primarily to the development of new, more advanced methods of welding, allowing to obtain the most reliable and durable products. So, for example, in 1941, was released only 38.8% of welded pipes. The remainder was accounted for by seamless. The share of welded accounted for only 0.8%. Already by 1965 these figures increased to 50% and 35% respectively.

Recommended

Staff evaluation: system and methods

Staff evaluation: system and methods

Personnel Assessment allows you to identify how competent the employees involved in the enterprise, and it is the performance of their work – the most significant factor affecting the efficiency of the company. To clarify the impact of performa...

How to start your own business: important aspects.

How to start your own business: important aspects.

Many people, tired of working for someone else, are increasingly thinking about how to start your own business. Someone wants to open a salon, someone store, and someone enough and vegetable stalls. Before you throw in the pool with his head, it is i...

business activities. its essence and basic functions

Business activities. its essence and basic functions

The Entrepreneurial activity of the citizen – is undertaken at your own risk and independent activity, which aims to systematically profit through the sale of works, goods, services, use of the property. The citizen engaged in such activities, ...

The use of welded pipes

Today, these products are used everywhere. Most often they are used for laying different kinds of roads, designed for pumping oil, gas, water etc this kind of pipes are usually used in public services. In this case, they are used for laying of water mains and sewer systems. Welded pipe is used also for the Assembly of gas elevated highways, drainage systems, etc.

Engineering — another area in which used welded pipe. Use them for making different kinds of architectural elements: canopies over entrances, awnings, swings, horizontal bars, etc. In agriculture with their use of harvested irrigation system.

assortment of steel tubes welded

Basic types of welded pipes

Be Different products of this type can:

  1. Method of manufacture. In this case, allocate the pipes made with the use of furnace welding and electric welding. Both of these species are considered quite reliable. Welded pipes can be produced by methods of arc, by contact or induction welding.

  2. The type of coverage. this feature could distinguish galvanized and ungalvanized pipe.

  3. According To From the direction of the seam (longitudinal and spiral).

  4. The Appearance used for the manufacture of Material. Produced welded pipes are usually made from low alloy or carbon steel. Apply either rolled sheet or strip. Sometimes for the production of pipes can be used and other metals: Nickel, copper, magnesium, etc. In this case, usually used with gas or gas-electric welding.

  5. A profile View. On this basis, there are round, rectangular profile, oval tube.

How do

Next, let's look at how is made of welded steel pipe. Assortment GOST in this case governs the accuracy. This applies both to the size and weight of products. In fact the process of production consists of the following steps:

  • The preparation and formation of the sheet;

  • Welding, which consists in creating an electric arc between the edges of the workpiece and the electrode;

  • Final finishing (sizing, chamfering, straightening, etc).

The Main stages of manufacture of pipes with spiral seam is the formation of sheet, welding and cutting on the go. In this case, the sheet metal ribbon is fed into a special node of the camp, where he rolled into a spiral. At the same time and his welding.

assortment of seamless steel tubes

Despite the fact that to produce spiral pipe lighter, industries are mainly engaged in production of pipes. The fact that such products are on the market, the most popular.

The guests

In the production of welded steel pipes must comply with certain standards. The quality of such products is regulated by GOST 10704-91. Assortment of pipes electrically welded steel pipes specified in this document to the regulations includes types of products:

  • With standard mechanical properties (marked “And”);

  • With control of chemical composition (“B”);

  • With control of both these parameters (“In”);

  • With standard hydraulic pressure when testing (“D”).

As for the size and weight, longitudinally welded pipes are manufactured in accordance with GOST 10705-80 (for products with a diameter of 10-500 mm) and GOST 10706-76 (for diameters of 478-1420 mm).

pipe steel grades GOST

Dimensions of steel pipe welded

Below we present to your attention a table of ratios of diameters of pipes, thickness of the walls and tolerances in accordance with GOST.

Outer diameter

Welding Method

Wall Thickness

Deviations

Wall thickness

Diameter

13.5-114 mm

Kiln

2-4 mm

-15, +8%

From 0.5 mm to 40 mm 1 — more than 40.

6-125 mm

Electric

0.4-5.5 mm

0.1 mm to 0.75 mm and 10% more than 0.75 mm

From 0.3 mm to 2 cm,

From 2 to 5.1 cm — 0.5 mm, more than 51   1%

159-529 mm

3-8 mm

In accordance with the regulations with respect to deviations in thickness used for the manufacture of metal sheets (for GOST 5587-58и 8597-57)

1% to 400 mm over 400 mm is used, the calibration of the pipe ends

426-1420

Electric Arc

6-14 mm

From 2 mm to 720 mm

From 3 mm to 1020 mm,

From 4 mm to 1220 mm

5 mm, more than 1220 mm

159-2020

4-15 mm

The GOST Regulates the ratio of the outer diameter and weight of 1 m pipe with a certain wall thickness. Dimensions of steel pipes in this case are also presented in special tables. Below for example of this a few such ratios.

D

Weight of 1 m pipe wall thickness

1 mm

2 mm

3 mm

10 mm

0.222

20 mm

0.469

0.888

30 mm

0.715

1.38

40 mm

1.87

2.74

60 mm

2.86

4.22


The Difference of electric-welded pipes by length

Welded steel Pipes, assortment of which is presented above, may vary also:

  • Product lengths (from five to 12 meters);

  • Random (2-12 m);

  • Multiple lengths.

The Product is a multiple of and lengths can have two classes of accuracy: cut ends and trimmed burrs and with cutting in-line mill (without zatorski).

electric resistance welded steel pipes assortment GOST

What is the strip

English this term is translated as “tape” or “strip”. Strips for manufacture of welded pipes are used very often. Actually, these strips made from sheet metal. There are strips:

  • Steel

  • Galvanized

  • Stainless steel strips;

  • With a polymer coating.

Weighing the strip depending on the thickness used for the manufacture of the material can range from fifty pounds to five tons. Supplied to companies specializing in the manufacture of pipes it in Babina or in conjunction definitely on the pallet.

Design Features welding mill

This equipment can be used for manufacturing as the spiral and longitudinally welded products. In the latter case, the machine design includes the following elements:

  • Foster and the boot device;

  • Decoiler

  • Correct machine.

  • Scissors for cutting the ends of the strip;

  • A furnace for heating the strip;

  • Molding-welding and calibration of the mills;

  • Flying saw, etc.

Before welding the workpiece passes through a special molding press or rolls.

A Mill for the production of spiral pipe consists of the following elements:

  • Decoiler and receiving rolls;

  • Guillotine shears

  • The cleanup device;

  • Gearbox;

  • The truck with the cutter;

  • Bracket welding head, etc.

The process of the formation of the pipe in this mill with a speed of 1.1 meters per minute. The quality of the weld, modern enterprises are inspected using ultrasound. Made the cut pipe after the mill comes in for calibration.

assortment of pipes electrically welded steellongitudinal

So, you now know how to do and what are the steel electric-welded pipes. Assortment GOST this product determines exactly. Also we understood what the standards are provided in the manufacture of seamless pipes. Exact observance of technology in the manufacturing allows to obtain quality and reliable products of this type are used in many fields of national economy.


Article in other languages:

AR: https://tostpost.com/ar/business/22217-dimensions-of-steel-pipes-dimensions-of-steel-pipes-welded.html

BE: https://tostpost.com/be/b-znes/39703-sortament-stalevyh-trub-sortament-stalevyh-trub-elektrosvarnye.html

DE: https://tostpost.com/de/business/39208-sortament-stahlrohren-sortament-stahlrohren-elektrosvarnyh.html

ES: https://tostpost.com/es/centro-de/38987-los-materiales-estandartizados-de-tubos-de-acero-los-materiales-estand.html

HI: https://tostpost.com/hi/business/23836-dimensions-of-steel-pipes-dimensions-of-steel-pipes-welded.html

JA: https://tostpost.com/ja/business/21797-dimensions-of-steel-pipes-dimensions-of-steel-pipes-welded.html

KK: https://tostpost.com/kk/biznes/40098-sortament-bolat-byrlar-s-rpy-elektrmen-p-s-r-lgen-bolat-byrlar.html

PL: https://tostpost.com/pl/biznes/38473-asortyment-rur-stalowych-asortyment-rur-stalowych-elektrosvarnyh.html

PT: https://tostpost.com/pt/neg-cios/38653-o-mix-de-tubos-de-a-o-o-mix-de-tubos-de-a-o-elektrosvarnyh.html

TR: https://tostpost.com/tr/business/36618-karmas-elik-boru-karmas-elik-boru-diki-li.html

UK: https://tostpost.com/uk/b-znes/40550-sortament-stalevih-trub-sortament-stalevih-elektrozvarnih-trub.html

ZH: https://tostpost.com/zh/business/18753-dimensions-of-steel-pipes-dimensions-of-steel-pipes-welded.html






Alin Trodden - author of the article, editor
"Hi, I'm Alin Trodden. I write texts, read books, and look for impressions. And I'm not bad at telling you about it. I am always happy to participate in interesting projects."

Comments (0)

This article has no comment, be the first!

Add comment

Related News

The IL 62M: technical data, history and photos

The IL 62M: technical data, history and photos

If the transport system – the blood of any economy of the world, passenger transportation can be called "plasma" this same blood. Than better, faster, and better the state is able to move people on its territory, t...

Internet

Internet "Tele2": reviews, connection, settings, packages

the Company “Tele2" recently became a Federal operator, thanks to the joint efforts of “Rostelecom” and other notable deals involving biggest brands. Now she is actively trying to expand its work in the segm...

Two-way satellite Internet with their hands. Internet through a satellite dish

Two-way satellite Internet with their hands. Internet through a satellite dish

Way to connect to and access the Internet through the satellite dish is increasingly gaining momentum in our country. A company that provides satellite TV reception, as a concomitant or additional services offered, and Internet vi...

Hand pump compression: features, manufacturers, description and reviews

Hand pump compression: features, manufacturers, description and reviews

Prevention of communication equipment is essential to maintaining proper performance and durability of such systems. This is especially true of pipelines, since the formation of the problem areas on its surface can lead to dire co...

Redevelopment of non-residential premises

Redevelopment of non-residential premises

Redevelopment of non-residential premises – a process that takes place in several stages. The receipt of all necessary approvals and proper paperwork – the stage is as serious as the renovations. Unfortunately, harmoni...

Uniks - dealership. Feedback from customers and employees for real about the car show Uniks

Uniks - dealership. Feedback from customers and employees for real about the car show Uniks

any average person the purchase of a car (as well as other objects of relatively high value) is a kind of outstanding, significant event. That's OK, because in order to buy a car, you need a few years to work, save money, strive i...