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Technology

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Technology

ASTM International Standards for Steel Pipes, Tubes and Fittings

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ASTM International, formerly known as American Society for Testing and Materials, is an international standards organization that develops and publishes voluntary consensus technical standards for a wide range of materials, products, systems, and services.ASTM was originally known as the American Society of the International Association for Testing and Materials when it was created in 1898 by Pennsylvania Railroad engineers and scientists. Its purpose was to address and prevent the frequent rail breaks that were plaguing the industry by developing standards that would ensure higher quality rail products.

ASTM’s steel standards are instrumental in classifying, evaluating, and specifying the material, chemical, mechanical, and metallurgical properties of the different types of steels, which are primarily used in the production of mechanical components, industrial parts, and construction elements, as well as other accessories related to them.

A pipe is a tubular section or hollow cylinder, usually but not necessarily of circular cross-section, used mainly to convey substances which can flow — liquids and gases (fluids), slurries, powders, masses of small solids. It can also be used for structural applications; hollow pipe is far stiffer per unit weight than solid members.

These steel standards are helpful in guiding metallurgical laboratories and refineries, product manufacturers, and other end-users of steel and its variants in their proper processing and application procedures to ensure quality towards safe use.

Abbr. Corresponding Application
A53 ASTM A53/A53m-99b specification for pipe, steel, black and hot-dipped, zinc-coated, welded and seamless
A74 ASTM A74-98 specification for cast iron soil pipe and fittings
A106 ASTM A106-99e1 specification for seamless carbon steel pipe for high-temperature service
A126 ASTM A126-95e1 specification for grey iron castings for valves, flanges, and pipe fittings
A134 ASTM A134-96 specification for pipe, steel, electric-fusion (arc)-welded (sizes nps 16 and over
A135 ASTM A135-97c specification for electric-resistance-welded steel pipe
A139 ASTM A139-96e1 specification for electric-fusion (arc)-welded steel pipe (nps 4 and over)
A182 ASTM A182/A182m-99 specificationfor forged or rolled alloy-steel pipe flanges, forged fittings, and valves and parts for high-temperature service
A252 ASTM A252-98 specification for welded and seamless steel pipe piles
A312 ASTM A312/a312m-00 specification for seamless and welded austenitic stainless steel pipes
A333 ASTM A333/A333m-99 specification for seamless and welded steel pipe for low-temperature service
A335 ASTM A335/A335m-99 specification for seamless ferritic alloy-steel pipe for high-temperature service
A338 ASTM A338-84(1998) specificationfor malleable iron flanges, pipe fittings, and valve parts for railroad, marine, and other heavy duty service at temperatures up to 650°f (345°c)
A358 ASTM A358/A358m-98 specification for electric-fusion-welded austenitic chromium-nickel alloy steel pipe for high-temperature service
A369 ASTM A369/A369m-92 specification for carbon and ferritic alloy steel forged and bored pipe for high-temperature service
A376 A376/A376m-98 specification for seamless austenitic steel pipe for high-temperature central-station service
A377 ASTM A377-99 index of specifications for ductile-iron pressure pipe
A409 ASTM A409/A409m-95ae1 specification for welded large diameter austenitic steel pipe for corrosive or high-temperature service
A426 ASTM A426-92(1997) specification for centrifugally cast ferritic alloy steel pipe for high-temperature service
A451 ASTM A451-93(1997) specification for centrifugally cast austenitic steel pipe for high-temperature service
A523 ASTM A523-96 specification for plain end seamless and electric-resistance-welded steel pipe for high-pressure pipe-type cable circuits
A524 ASTM A524-96 specification for seamless carbon steel pipe for atmospheric and lower temperatures
A530 ASTM A530/A530m-99 specification for general requirements for specialized carbon and alloy steel pipe
A648 ASTM A648-95e1 specification for steel wire, hard drawn for prestressing concrete pipe
A674 ASTM A674-95 practice for polyethylene encasement for ductile iron pipe for water or other liquids
A691 ASTM A691-98 specification for carbon and alloy steel pipe, electric-fusion-welded for high-pressure service at high temperatures
A694 ASTM A694/A694m-00 specification for carbon and alloy steel forgings for pipe flanges, fittings, valves, and parts for high-pressure transmission service
A716 ASTM A716-99 specification for ductile iron culvert pipe
A733 ASTM A733-99 specification for welded and seamless carbon steel and austenitic stainless steel pipe nipples
A742 ASTM A742/A742m-98 specification for steel sheet, metallic coated and polymer precoated for corrugated steel pipe
A746 ASTM A746-99 specification for ductile iron gravity sewer pipe
A760 ASTM A760/A760m-99 specification for corrugated steel pipe, metallic-coated for sewers and drains
a761 ASTM A761/A761m-98 specification for corrugated steel structural plate, zinc-coated, for field-bolted pipe, pipe-arches, and arches
A762 ASTM A762/A762m-98 specification for corrugated steel pipe, polymer precoated for sewers and drains
A790 ASTM A790/A790m-99 specification for seamless and welded ferritic/austenitic stainless steel pipe
A796 ASTM A796/A796m-99 practice for structural design of corrugated steel pipe, pipe-arches, and arches for storm and sanitary sewers and other buried applications
A798 ASTM A798/A798m-97a practice for installing factory-made corrugated steel pipe for sewers and other applications
A807 ASTM A807/A807m-97 practice for installing corrugated steel structural plate pipe for sewers and other applications
A810 ASTM A810-94 specification for zinc-coated (galvanized) steel pipe winding mesh
A813 ASTM A813/A813m-95e2 specification for single- or double-welded austenitic stainless steel pipe
A814 ASTM A814/A814m-96 (1998) specification for cold-worked welded austenitic stainless steel pipe
A849 ASTM A849-99 specification for post-applied coatings, pavings, and linings for corrugated steel sewer and drainage pipe
A861 ASTM A861-94e1 specification for high-silicon iron pipe and fittings
A862 ASTM A862/A862m-98 practice for application of asphalt coatings to corrugated steel sewer and drainage pipe
A865 ASTM A865-97 specification for threaded couplings, steel, black or zinc-coated (galvanized) welded or seamless, for use in steel pipe joints
A872 ASTM A872-91 (1997) specification for centrifugally cast ferritic/austenitic stainless steel pipe for corrosive environments
A885 ASTM A885/A885m-96 specification for steel sheet, zinc and aramid fiber composite coated for corrugated steel sewer, culvert, and underdrain pipe
A888 ASTM A888-98e1 specification for hubless cast iron soil pipe and fittings for sanitary and storm drain, waste, and vent piping applications
A926 ASTM A926-97 test method for comparing the abrasion resistance of coating materials for corrugated metal pipe
A928 ASTM A928/A928m-98 specification for ferritic/austenitic (duplex) stainless steel pipe electric fusion welded with addition of filler metal
A929 ASTM A929/A929m-97 specification for steel sheet, metallic-coated by the hot-dip process for corrugated steel pipe
A930 ASTM A930-99 practice for life-cycle cost analysis of corrugated metal pipe used for culverts, storm sewers, and other buried conduits
A943 ASTM A943/A943m-95e1 specification for spray-formed seamless austenitic stainless steel pipes
A949 ASTM A949/A949m-95e1 specification for spray-formed seamless ferritic/austenitic stainless steel pipe
A954 ASTM A954-96 specification for austenitic chromium-nickel-silicon alloy steel seamless and welded pipe
A972 ASTM A972/A972m-99 specification for fusion bonded epoxy-coated pipe piles
A978 ASTM A978/A978m-97 specification for composite ribbed steel pipe, precoated and polyethylene lined for gravity flow sanitary sewers, storm sewers, and other special applications
A984 ASTM A984/A984m-00 specification for steel line pipe, black, plain-end, electric-resistance-welded
A998 ASTM A998/A998m-98 practice for structural design of reinforcements for fittings in factory-made corrugated steel pipe for sewers and other applications
A999 A999/A999m-98 specification for general requirements for alloy and stainless steel pipe
A1005 ASTM A1005/A1005m-00 specification for steel line pipe, black, plain end, longitudinal and helical seam, double submerged-arc welded
A1006 ASTM A1006/A1006m specification for steel line pipe, black, plain end, laser beam welded

Steel Tubes

Superheater, Boiler and Miscellaneous Tubes:

  • A178 – A178/A178M-95 – Specification for Electric-Resistance-Welded Carbon Steel and Carbon-Manganese Steel Boiler and Superheater Tubes
  • A179 – A179/A179M-90a (1996) e1 – Specification for Seamless Cold-Drawn Low-Carbon Steel Heat-Exchanger and Condenser Tubes
  • A192 – A192/A192M-91 (1996) e1 – Specification for Seamless Carbon Steel Boiler Tubes for High-Pressure Service
  • A209 – A209/A209M-98 – Specification for Seamless Carbon-Molybdenum Alloy-Steel Boiler and Superheater Tubes
  • A210 – A210/A210M-96 – Specification for Seamless Medium-Carbon Steel Boiler and Superheater Tubes
  • A213 – A213/A213M-99a – Specification for Seamless Ferritic and Austenitic Alloy-Steel Boiler, Superheater, and Heat-Exchanger Tubes
  • A249 – A249/A249M-98e1 – Specification for Welded Austenitic Steel Boiler, Superheater, Heat-Exchanger, and Condenser Tubes
  • A250 – A250/A250M-95 – Specification for Electric-Resistance-Welded Ferritic Alloy-Steel Boiler and Superheater Tubes
  • A254 – A254-97 – Specification for Copper-Brazed Steel Tubing
  • A268 – A268/A268M-96 – Specification for Seamless and Welded Ferritic and Martensitic Stainless Steel Tubing for General Service
  • A269 – A269-98 – Specification for Seamless and Welded Austenitic Stainless Steel Tubing for General Service
  • A270 – A270-98ae1 – Specification for Seamless and Welded Austenitic Stainless Steel Sanitary Tubing
  • A334 – A334/A334M-99 – Specification for Seamless and Welded Carbon and Alloy-Steel Tubes for Low-Temperature Service
  • A423 – A423/A423M-95 – Specification for Seamless and Electric-Welded Low-Alloy Steel Tubes
  • A450 – A450/A450M-96a – Specification for General Requirements for Carbon, Ferritic Alloy, and Austenitic Alloy Steel Tubes
  • A608 – A608-91a (1998) – Specification for Centrifugally Cast Iron-Chromium-Nickel High-Alloy Tubing for Pressure Application at High Temperatures
  • A618 – A618-99 – Specification for Hot-Formed Welded and Seamless High-Strength Low-Alloy Structural Tubing
  • A632 – A632-98 – Specification for Seamless and Welded Austenitic Stainless Steel Tubing (Small-Diameter) for General Service
  • A688 – A688/A688M-98 – Specification for Welded Austenitic Stainless Steel Feedwater Heater Tubes
  • A771 – A771/A771M-95 – Specification for Seamless Austenitic and Martensitic Stainless Steel Tubing for Liquid Metal-Cooled Reactor Core Components
  • A778 – A778-98 – Specification for Welded, Unanneled Austenitic Stainless Steel Tubular Products
  • A789 – A789/A789M-00 – Specification for Seamless and Welded Ferritic/Austenitic Stainless Steel Tubing for General Service
  • A803 – A803/A803M-98 – Specification for Welded Ferritic Stainless Steel Feedwater Heater Tubes
  • A822 – A822-90 (1995) e1 – Specification for Seamless Cold-Drawn Carbon Steel Tubing for Hydraulic System Service
  • A826 – A826/A826M-95 – Specification for Seamless Austenitic and Martensitic Stainless Steel Duct Tubes for Liquid Metal-Cooled Reactor Core Components
  • A847 – A847-99a – Specification for Cold-Formed Welded and Seamless High Strength, Low Alloy Structural Tubing with Improved Atmospheric Corrosion Resistance
  • A908 – A908-91 (1998) – Specification for Stainless Steel Needle Tubing
  • A953 – A953-96 – Specification for Austenitic Chromium-Nickel-Silicon Alloy Steel Seamless and Welded Tubing –

 

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Technology

UL List Steel Pipe

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UL List Steel Pipe

Size Range and Application

Size:ODΦ21.3mm-323.9mm  WT：2.77-10.31mm（SCH40）

Usage:Used for sprinklers fire protection service

Standard and material:ASTM A53 GR.B

Type：seamless or welded  as the construction design

As the leading manufacturer and supplier of fire fighting pipe, we have UL certificate for sprinkler steel pipes and fittings. With the most advanced pipe processing  technology and equipment, we are specialized in providing more convenient & reliable fire fighting products.

 Standard and material （Chemical Composition） （Mechanical Properties）
C Mn P S Cu NI Cr Mo V Tensile Strength（Mpa）  Yield Strength（Mpa）
ASTM A53 GR.B ≤0.30 ≤1.20 0.05 0.045 0.40 0.40 0.40 0.15 0.08 ≥415 ≥240

Pipe ends Finished: Rolled Groove end , Slotted end.

The end is available for slotted accessorices connected, such as slotted clamp, slotted elbow and tee.

  Certificate

 Fire Sprinkler Pipe is UL and FM certificate Approved

1. Factory

The factory is in Tianjin city China

2. Weights

The weight shall not vary more than +/-5% from that prescribed.

3. Diameter

For pipe NPS 1/2-11⁄2 (DN 40) , the outside diameter at any point shall not vary more than 1⁄64 inch (0.4 mm) over nor more than 1⁄32 inch (0.8 mm) .

For pipe NPS 2 (DN 50)-10 (DN250), the outside diameter shall not vary more than +/-1 % .

4. Thickness

The minimum wall thickness at any point shall not vary more than 12.5 % under the nominal wall thickness.

5. Sample Service

Free Sample, will charge INT’L Courier

 

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Technology

Steel Pipe and Manufacturing Processes

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Steel Pipe and Manufacturing Processes

Introduction

The advent of rolling mill technology and its development during the first half of the nineteenth century also heralded in the industrial manufacture of tube and pipe. Initially, rolled strips of sheet were formed into a circular cross section by funnel arrangements or rolls, and then butt or lap welded in the same heat (forge welding process).

Toward the end of the century, various processes became available for the manufacture of seamless tube and pipe, with production volumes rapidly increasing over a relatively short period. In spite of the application of other welding processes, the ongoing development and further improvement of the seamless techniques led to welded tube being almost completely pushed out of the market, with the result that seamless tube and pipe dominated until the Second World War.

During the subsequent period, the results of research into welding technology led to an upturn in the fortunes of the welded tube, with burgeoning development work ensuing and wide propagation of numerous tube welding processes. Currently, around two thirds of steel tube production in the world are accounted for by welding processes. Of this figure, however, about one quarter takes the form of so-called large-diameter line pipe in size ranges outside those which are economically viable in seamless tube and pipe manufacturing.


As steel pipes are made? (German comment)

The German commentary is brilliant…hopefully you understand what the speaker says and shows (-:

Seamless Tube and Pipe

The main seamless tube manufacturing processes came into being toward the end of the nineteenth century. As patent and proprietary rights expired, the various parallel developments initially pursued became less distinct and their individual forming stages were merged into new processes. Today, the state of the art has developed to the point where preference is given to the following modern high-performance processes:

The continuous mandrel rolling process and the push bench process in the size range from approx. 21 to 178 mm outside diameter.

The multi-stand plug mill (MPM) with controlled (constrained) floating mandrel bar and the plug mill process in the size range from approx. 140 to 406 mm outside diameter.

The cross roll piercing and pilger rolling process in the size range from approx. 250 to 660 mm outside diameter.

Mandrel Mill Process

In the Mandrel Mill Process, a solid round (billet) is used. It is heated in a rotary hearth heating furnace and then pierced by a piercer. The pierced billet or hollow shell is rolled by a mandrel mill to reduce the outside diameter and wall thickness which forms a multiple length mother tube. The mother tube is reheated and further reduced to specified dimensions by the stretch reducer. The tube is then cooled, cut, straightened and subjected to finishing and inspection processes befor shipment.


* Note: Processes marked by an asterisk are conducted specification and/or customer requirements

Mannesmann plug mill process

Plug Mill Process, a solid round (billet) is used. It is uniformly heated in the rotary hearth heating furnace and then pierced by a Mannesmann piercer. The pierced billet or hollow shell is rollreduced in outside diameter and wall thickness. The rolled tube simultaneously burnished inside and outside by a reeling machine. The reeled tube is then sized by a sizing mill to the specified dimensions. From this step the tube goes through the straightener. This process completes the hot working of the tube. The tube (referred to as a mother tube) after finishing and inspection, becomes a finished product.

Welded Tube and Pipe

Ever since it became possible to manufacture strip and plate, people have constantly tried to bend the material and connect its edges in order to manufacture tube and pipe. This led to the development of the oldest welding process, that of forge-welding, which goes back over 150 years.

In 1825, the British ironware merchant James Whitehouse was granted a patent for the manufacture of welded pipe. The process consisted of forging individual metal plates over a mandrel to produce an open-seam pipe, and then heating the mating edges of the open seam and welding them by pressing them together mechanically in a draw bench.

The technology evolved to the point where strip could be formed and welded in one pass in a welding furnace. The development of this butt-welding concept culminated in 1931 in the Fretz-Moon process devised by J. Moon, an American, and his German colleague Fretz.

Welding lines employing this process are still operating successfully today in the manufacture of tube up to outside diameters of approx. 114 mm. Aside from this hot pressure welding technique, in which the strip is heated in a furnace to welding temperature, several other processes were devised by the American E. Thomson between the years 1886 and 1890 enabling metals to be electrically welded. The basis for this was the property discovered by James P. Joule whereby passing an electric current through a conductor causes it to heat up due to its electrical resistance.

In 1898, the Standard Tool Company, USA, was granted a patent covering the application of electric resistance welding for tube and pipe manufacture. The production of electric resistance welded tube and pipe received a considerable boost in the United States, and much later in Germany, following the establishment of continuous hot strip rolling mills for the production of the bulk starting material necessary for large-scale manufacture. During the Second World War, an argon arc welding process was invented – again in the United States – which enabled the efficient welding of magnesium in aircraft construction.

As a consequence of this development, various gas-shielded welding processes were developed, predominantly for the production of stainless steel tube.Following the far-reaching developments which have occurred in the energy sector in the last 30 years, and the resultant construction of large-capacity long-distance pipelines, the submerged-arc welding process has gained a position of pre-eminence for the welding of line pipe of diameters upward of approx. 500 mm.

Electric Weld Pipe Mill

Steel strip in coil, which has been slit into the required width from wide strip, is shaped by a series of forming rolls into a multiple length shell. The longitudinal edges are continously joined by high frequency resistance/induction welding.
The weld of multiple length shell is then head treated electrically, sized and cut to specified lengths by a flying cut-off machine. The cut pipe is straightened and squared at both ends.
These operations are followed by ultrasonic inspection or hydrostatic testing.

Technology

Dimensions and weights of seamless Pipe according to standards

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Key:
cold drawn
hot rolled
diameter according to EN 10 210-2
standard wall thickness of specific
outside diameter according to DIN 2448
Outside
Wall thickness [mm]
diameter
0,5
0,6
0,8
1,0
1,2
1,4
1,6
1,8
2,0
2,3
2,6
2,9
3,2
3,6
4,0
4,5
5,0
5,4
5,6
6,3
7,1
8,0
8,8
10,0
11,0
12,5
14,2
16,0
D [mm]
[mm]
Tube weight [kg/m]
10,2
0,120
0,142
0,185
0,227
0,266
0,304
0,339
0,373
0,404
0,448
0,487
10,2
12,0
0,142
0,169
0,221
0,271
0,320
0,366
0,410
0,453
0,493
0,550
0,603
0,651
0,694
12,0
12,7
0,150
0,179
0,235
0,289
0,340
0,390
0,438
0,484
0,528
0,590
0,648
0,701
0,750
12,7
13,5
0,160
0,191
0,251
0,308
0,364
0,418
0,470
0,519
0,567
0,635
0,699
0,758
0,813
0,879
13,5
14,0
0,166
0,198
0,260
0,321
0,379
0,435
0,489
0,542
0,592
0,664
0,731
0,794
0,852
0,923
14,0
16,0
0,191
0,228
0,300
0,370
0,438
0,504
0,568
0,630
0,691
0,777
0,859
0,937
1,01
1,10
1,18
16,0
17,2
0,206
0,246
0,324
0,400
0,474
0,546
0,616
0,684
0,750
0,845
0,936
1,02
1,10
1,21
1,30
1,41
17,2
18,0
0,216
0,257
0,339
0,419
0,497
0,573
0,647
0,719
0,789
0,891
0,987
1,08
1,17
1,28
1,38
1,50
18,0
19,0
0,228
0,272
0,359
0,444
0,527
0,608
0,687
0,764
0,838
0,947
1,05
1,15
1,25
1,37
1,48
1,61
1,73
19,0
20,0
0,240
0,287
0,379
0,469
0,556
0,642
0,726
0,808
0,888
1,00
1,12
1,22
1,33
1,46
1,58
1,72
1,85
20,0
21,3
0,256
0,306
0,404
0,501
0,595
0,687
0,777
0,866
0,952
1,08
1,20
1,32
1,43
1,57
1,71
1,86
2,01
2,12
21,3
22,0
0,265
0,317
0,418
0,518
0,616
0,711
0,805
0,897
0,986
1,12
1,24
1,37
1,48
1,63
1,78
1,94
2,10
2,21
22,0
25,0
0,361
0,477
0,592
0,704
0,815
0,923
1,03
1,13
1,29
1,44
1,58
1,72
1,90
2,07
2,28
2,47
2,61
2,68
25,0
25,4
0,485
0,602
0,716
0,829
0,939
1,05
1,15
1,31
1,46
1,61
1,75
1,94
2,11
2,32
2,52
2,66
2,73
25,4
26,9
0,515
0,639
0,761
0,880
0,998
1,11
1,23
1,40
1,56
1,72
1,87
2,07
2,26
2,49
2,70
2,86
2,94
26,9
30,0
0,576
0,715
0,852
0,987
1,12
1,25
1,38
1,57
1,76
1,94
2,11
2,34
2,56
2,83
3,08
3,28
3,37
3,68
30,0
31,8
0,760
0,906
1,05
1,19
1,33
1,47
1,67
1,87
2,07
2,26
2,50
2,74
3,03
3,30
3,52
3,62
3,96
4,33
31,8
32,0
0,765
0,911
1,06
1,20
1,34
1,48
1,68
1,89
2,08
2,27
2,52
2,76
3,05
3,33
3,54
3,65
3,99
4,36
32,0
33,7
0,806
0,962
1,12
1,27
1,42
1,56
1,78
1,99
2,20
2,41
2,67
2,93
3,24
3,54
3,77
3,88
4,26
4,66
33,7
35,0
0,838
1,00
1,16
1,32
1,47
1,63
1,85
2,08
2,30
2,51
2,79
3,06
3,38
3,70
3,94
4,06
4,46
4,89
35,0
38,0
0,912
1,09
1,26
1,44
1,61
1,78
2,02
2,27
2,51
2,75
3,05
3,35
3,72
4,07
4,34
4,47
4,93
5,41
5,92
38,0
40,0
0,962
1,15
1,33
1,52
1,70
1,87
2,14
2,40
2,65
2,90
3,23
3,55
3,94
4,32
4,61
4,75
5,24
5,76
6,31
40,0
42,4
1,61
1,80
1,99
2,27
2,55
2,82
3,09
3,44
3,79
4,21
4,61
4,93
5,08
5,61
6,18
6,79
7,29
42,4
44,5
1,69
1,90
2,10
2,39
2,69
2,98
3,26
3,63
4,00
4,44
4,87
5,21
5,37
5,94
6,55
7,20
7,75
8,51
44,5
48,3
1,84
2,06
2,28
2,61
2,93
3,25
3,56
3,97
4,37
4,86
5,34
5,71
5,90
6,53
7,21
7,95
8,57
9,45
48,3
51,0
1,95
2,18
2,42
2,76
3,10
3,44
3,77
4,21
4,64
5,16
5,67
6,07
6,27
6,94
7,69
8,48
9,16
10,1
51,0
54,0
2,07
2,32
2,56
2,93
3,30
3,65
4,01
4,47
4,93
5,49
6,04
6,47
6,68
7,41
8,21
9,08
9,81
10,9
54,0
57,0
2,19
2,45
2,71
3,10
3,49
3,87
4,25
4,74
5,23
5,83
6,41
6,87
7,10
7,88
8,74
9,67
10,5
11,6
12,5
13,7
57,0
60,3
2,32
2,60
2,88
3,29
3,70
4,11
4,51
5,03
5,55
6,19
6,82
7,31
7,55
8,39
9,32
10,3
11,2
12,4
13,4
14,7
60,3
63,5
2,44
2,74
3,03
3,47
3,90
4,33
4,76
5,32
5,87
6,55
7,21
7,74
8,00
8,89
9,88
11,0
11,9
13,2
14,2
15,7
63,5
70,0
2,70
3,03
3,35
3,84
4,32
4,80
5,27
5,90
6,51
7,27
8,01
8,60
8,89
9,90
11,0
12,2
13,3
14,8
16,0
17,7
19,3
70,0
73,0
2,82
3,16
3,50
4,01
4,51
5,01
5,51
6,16
6,81
7,60
8,38
9,00
9,31
10,4
11,5
12,8
13,9
15,5
16,8
18,7
20,4
73,0
76,1
2,94
3,30
3,65
4,19
4,71
5,24
5,75
6,44
7,11
7,95
8,77
9,42
9,74
10,8
12,1
13,4
14,6
16,3
17,7
19,6
21,4
23,7
76,1
82,5
3,97
4,55
5,12
5,69
6,26
7,00
7,74
8,66
9,56
10,3
10,6
11,8
13,2
14,7
16,0
17,9
19,4
21,6
23,7
26,2
82,5
88,9
4,29
4,91
5,53
6,15
6,76
7,57
8,38
9,37
10,3
11,1
11,5
12,8
14,3
16,0
17,4
19,5
21,1
23,6
25,9
28,8
88,9
101,6
4,91
5,63
6,35
7,06
7,77
8,70
9,63
10,8
11,9
12,8
13,3
14,8
16,5
18,5
20,1
22,6
24,6
27,5
30,2
33,8
101,6
108,0
5,23
6,00
6,76
7,52
8,27
9,27
10,3
11,5
12,7
13,7
14,1
15,8
17,7
19,7
21,5
24,2
26,3
29,4
32,6
36,3
108,0
114,3
7,16
7,97
8,77
9,83
10,9
12,2
13,5
14,5
15,0
16,8
18,8
21,0
22,9
25,7
28,0
31,4
34,6
38,8
114,3
121,0
7,6
8,5
9,3
10,4
11,5
12,9
14,3
15,4
15,9
17,8
19,9
22,3
24,4
27,4
29,8
33,4
36,9
41,4
121,0
127,0
12,1
13,6
15,0
16,2
16,8
18,8
21,0
23,5
25,7
28,9
31,5
35,3
39,0
43,8
127,0
133,0
12,7
14,3
15,8
17,0
17,6
19,7
22,0
24,7
27,0
30,3
33,1
37,1
41,1
46,2
133,0
139,7
18.5
20,7
23,2
26,0
28,4
32,0
34,9
39,2
43,4
48,2
139,7
Outside
Wall thickness [mm]
diameter
0,5
0,6
0,8
1,0
1,2
1,4
1,6
1,8
2,0
2,3
2,6
2,9
3,2
3,6
4,0
4,5
5,0
5,4
5,6
6,3
7,1
8,0
8,8
10,0
11,0
12,5
14,2
16,0
[mm]
Tube weight [kg/m]

 

Notes
1. The dimensions of steel tubes in this table are taken from the applicable European standards EN 10220 – Seamless and welded steel tubes – Dimensions and masses per unit length. This standard replaced
previously existing national standards DIN, BS, NF A and other standards. The dimensios represent the current production program of steel tubes from Železiarne Podbrezová (other than precision tubes, whose
dimensions are listed in other tables for precision tubes.
2. Depending on the size of the outside diameters, wall thickness and their combinations are the tubes (final dimensions) produced by hot forming (hot finished by rolling) or by end forming (cold finished by drawing).
Besides technological possibilities tube production method is also affected by the requirements of customers on the technical parameters of tubes.
3. Informative – hot finished tubes are supplied from Podbrezová from the outside diameter D ≥ 26,9 mm and wall thickness T ≥ 2,6 mm. These tubes in the table are highlighted in color. Production border dimensions of tubes (eg. tubes with thick walls) upon agreement. Other dimensions and precision tubes are produced by cold forming (cold drawing).
4. Russian standards and currently already replaced standards ČSN and STN also contain the tubes with other nominal tube dimensions than those listed in table. The supply of these tubes is possible.
5. Dimensions of steel tubes according to U.S. standards (Tubes and Pipe), API standards, pipes for threading and tubes and pipes supplied by Japanese standard JIS are listed in other tables of dimensions.
6. The professional literature also contains the standards ISO. For dimensions and weight of steel tubes with plain ends valid standard ISO 4200, system of tolerances is in standard ISO 5252. ISO 1129 contains dimensions, tolerances and weight of steel tubes for boilers, superheaters and heat exchangers.
7. EN standards valid for individual types and groups of steel tubes (eg. tubes for pressure equipment) also contain its own dimension table. Dimensions in them are taken from EN 10220. In the survey tables of different groups of tubes are as dimensional standards given numbers of EN valid for given group of tubes (eg. EN 10216-1).
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