Нержавеющая сталь efw трубы astm a358 gr. tp304 ci.5

Алан-э-Дейл       02.05.2022 г.

About This Item

Full Description

1.1 These test methods2 cover procedures and definitions for the mechanical testing of steels, stainless steels, and related alloys. The various mechanical tests herein described are used to determine properties required in the product specifications. Variations in testing methods are to be avoided, and standard methods of testing are to be followed to obtain reproducible and comparable results. In those cases in which the testing requirements for certain products are unique or at variance with these general procedures, the product specification testing requirements shall control.

1.2 The following mechanical tests are described:

Sections

               Tension

6 to 14

               Bend

15

               Hardness

16

                    Brinell

17

                    Rockwell

18

                    Portable

19

               Impact

20 to 30

               Keywords

32

1.3 Annexes covering details peculiar to certain products are appended to these test methods as follows:

Annex

     Bar Products

Annex A1

     Tubular Products

Annex A2

     Fasteners

Annex A3

     Round Wire Products

Annex A4

     Significance of Notched-Bar Impact Testing

Annex A5

     Converting Percentage Elongation of Round Specimens to           Equivalents for Flat Specimens

Annex A6

     Testing Multi-Wire Strand

Annex A7

     Rounding of Test Data

Annex A8

     Methods for Testing Steel Reinforcing Bars

Annex A9

     Procedure for Use and Control of Heat-Cycle Simulation

Annex A10

1.4 The values stated in inch-pound units are to be regarded as the standard.

1.5 When this document is referenced in a metric product specification, the yield and tensile values may be determined in inch-pound (ksi) units then converted into SI (MPa) units. The elongation determined in inch-pound gauge lengths of 2 or 8 in. may be reported in SI unit gauge lengths of 50 or 200 mm, respectively, as applicable. Conversely, when this document is referenced in an inch-pound product specification, the yield and tensile values may be determined in SI units then converted into inch-pound units. The elongation determined in SI unit gauge lengths of 50 or 200 mm may be reported in inch-pound gauge lengths of 2 or 8 in., respectively, as applicable.

1.5.1 The specimen used to determine the original units must conform to the applicable tolerances of the original unit system given in the dimension table not that of the converted tolerance dimensions.

Note 1: This is due to the specimen SI dimensions and tolerances being hard conversions when this is not a dual standard. The user is directed to Test Methods A1058 if the tests are required in SI units.

1.6 Attention is directed to ISO/IEC 17025 when there may be a need for information on criteria for evaluation of testing laboratories.

1.7 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

1.8 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

ASTM A370 Test Procedure

Step 1: Measure and document the specimen dimensions to determine the smallest point’s cross-sectional area. The original cross-sectional area is used for stress calculations.

Step 2: If not using an extensometer, place gage marks on the test samples at the appropriate gage length. The distance between the gage marks after the specimen is broken is used to determine the percent elongation at the breaking point. The gage lengths need to be the same.

Step 3: Zero the test machine.

Step 4: Install the specimen into the grips. If using an extensometer, install the extensometer on the sample and begin loading the specimen. Step 5: Run the test until the sample either fails or fractures.

Step 6: Remove the broken sample. If using an extensometer the software will automatically calculate the elongation, yield and modulus data. If not using an extensometer, fit the fractured ends together and measure the distance between the gage marks to the nearest 0.05 mm (0.002 in).

By means of our tension testing expertise and modular product design, we will help find the solution that is right for you. Give our test engineers a call today for help configuring the best test machine and accessories according to ASTM A370.

Спецификация ASTM A358

Спецификация ASTM A358 включает в себя электродуговой сварки сварные аустенитной хромо-никелевой нержавеющей стальной трубы. Эта труба подходит для коррозийных, службы при высокой температуре, и / или общее применение. Трубы разделены на пять различных классов:

Учебный класс 1 двойная труба приварена с помощью присадочного металла во всех проходах и полностью радиографии. Учебный класс 2 канализационные трубы двойной сварки с использованием присадочного металла во всех проходят без каких-либо радиографий. Учебный класс 3 трубы приварены одна Учебный класс 4 трубы приварены одна, Однако сварной шов проход класса 4 подвергается воздействию внутренней поверхности трубы может быть без металлического наполнителя дополнительно. Учебный класс 5 Трубы сварены двойное использование присадочного металла и рентгенография пятна.

дефекты сварных швов устраняются путем удаления на звук металла и сварка заново. Термическая обработка требуется на оригинальных сварных швах. Готовые трубы подвергаются испытаниям на растяжение, Испытание поперечного направляемый изгиба сварного шва, и гидростатические испытания.

Описание

Действие термометров ASTМ основано на тепловом расширении термометрической жидкости. Термометр ASTМ представляет собой резервуар с припаянной к нему капиллярной трубкой. Жидкость полностью заполняет резервуар и часть капиллярной трубки. При изменении температуры объем жидкости в резервуаре изменяется, вследствие чего мениск жидкостного столбика в капилляре поднимается или опускается на величину, пропорциональную изменению температуры. Капилляр снабжен шкалой с делениями в градусах температурной шкалы. Термометры по конструктивному исполнению относятся к палочному типу.

В зависимости от условий эксплуатации термометры изготовлены, как полного погружения, так и частичного погружения. Термометры ASTM заполнены ртутью или смачивающей жидкостью.

Внешний вид термометров ASTM приведен на рисунке 1.

S.S EFW ТРУБЫ

1

ПИ

14″

Труба EFW BE 7.14 мм Толщина стенки ASTM A358 Gr. TP304 CI.5

0.60

0.00

0.00

0.60

   

6

   

2

ПИ

32″

Труба EFW BE 7.14 мм Толщина стенки ASTM A358 Gr. TP304 CI.5

9.85

0.10

0.00

9.95

12.00

 

24

   

3

ПИ

14″

Труба EFW BE 3.96 мм Толщина стенки ASTM A358 Gr. TP304 CI.5

10.08

0.10

0.00

10.18

12.00

 

24

   

4

ПИ

16”

Труба EFW BE 3.96 мм Толщина стенки ASTM A358 Gr. TP304 CI.5

4.67

0.05

0.00

4.72

6.00

 

12

   

5

ПИ

18″

Труба EFW BE 5.16 мм Толщина стенки ASTM A358 Gr. TP304 CI.5

34.20

0.34

0.00

34.54

12.00

 

48

   

6

ПИ

20”

Труба EFW BE 5.16 мм Толщина стенки ASTM A358 Gr. TP304 CI.5

2.94

0.03

0.00

2.97

6.00

 

12

   

7

ПИ

24″

Труба EFW BE 5.16 мм Толщина стенки ASTM A358 Gr. TP304 CI.5

107.77

1.08

0.00

108.85

12.00

 

126

   

8

ПИ

40”

Труба EFW BE 7.92 мм Толщина стенки ASTM A358 Gr. TP304 CI.5

19.56

0.20

0.00

19.75

12.00

 

30

   

9

ПИ

20”

Труба EFW BE 8.74 мм Толщина стенки ASTM A358 Gr. TP304 CI.5

0.63

0.01

0.00

0.64

6.00

 

12

   

10

ПИ

24″

Труба EFW BE 10.31 мм Толщина стенки ASTM A358 Gr. TP304CI.5

8.25

0.08

0.00

8.34

12.00

 

24

   

11

ПИ

16”

Труба EFW BE 11.13 мм Толщина стенки ASTM A358 Gr. TP304 CI.5

2.56

0.03

0.00

2.59

6.00

 

12

   

12

ПИ

20”

Труба EFW BE 11.13 мм Толщина стенки ASTM A358 Gr. TP304 CI.5

10.55

0.11

0.00

10.66

12.00

12.00

36

   

13

ПИ

28″

Труба EFW BE 11.91 мм Толщина стенки ASTM A358 Gr. TP304 CI.5

6.67

0.07

0.00

6.73

12.00

 

24

   

14

ПИ

24″

Труба EFW BE 12.70 мм Толщина стенки ASTM A358 Gr. TP304 CI.5

13.01

0.13

0.00

13.14

12.00

 

30

   

15

ПИ

28″

Труба EFW BE 15.09 мм Толщина стенки ASTM A358 Gr. TP304 CI.5

19.36

0.19

0.00

19.55

12.00

12.00

48

   

ASTM A370 Related Standards

  • ASTM A27 Steel Castings, Carbon, for General Application
  • ASTM A29 Steel Bars, Carbon and Alloy, Hot-Wrought ASTM A48 Steel Castings, Welding, Qualifications of Procedures and Personnel
  • ASTM A53 Pipe, Steel, Black and Hot-Dipped, Zinc-Coated, Welded and Seamless
  • ASTM A109 Steel, Strip, Carbon (0.25 Maximum Percent), Cold-Rolled
  • ASTM A269 Seamless and Welded Austenitic Stainless Steel Tubing for General Service
  • ASTM A488 Steel Castings, Welding, Qualifications of Procedures and Personnel
  • ASTM A536 Ductile Iron Castings
  • ASMT A641 Zinc–Coated (Galvanized) Carbon Steel Wire
  • ASTM A653 Standard Specification for Steel Sheet, Zinc-Coated (Galvanized) or Zinc-Iron Alloy-Coated (Galvannealed) by the Hot-Dip Process
  • ASTM A1008 Steel, Sheet, Cold-Rolled, Carbon, Structural, High-Strength Low-Alloy, High-Strength Low-Alloy with Improved Formability, Solution Hardened, and Bake Hardenable
  • ASTM A1018 Steel, Sheet and Strip, Heavy-Thickness Coils, Hot-Rolled, Carbon, Commercial, Drawing, Structural, High-Strength Low-Alloy, High-Strength Low-Alloy with Improved Formability, and Ultra-High Strength
  • ASTM A1064 Carbon-Steel Wire and Welded Wire Reinforcement, Plain and Deformed, for Concrete
  • ASTM B3 Soft or Annealed Copper Wire
  • ASTM B36 Brass Plate, Sheet, Strip, And Rolled Bar
  • ASTM B96 Copper-Silicon Alloy Plate, Sheet, Strip, and Rolled Bar for General Purposes and Pressure Vessels
  • ASTM B103 Phosphor Bronze Plate, Sheet, Strip, and Rolled Bar
  • ASTM B122 Copper-Nickel-Tin Alloy, Copper-Nickel-Zinc Alloy (Nickel Silver), and Copper-Nickel Alloy Plate, Sheet, Strip, and Rolled Bar
  • ASTM B152 Copper Sheet, Strip, Plate, and Rolled Bar
  • ASTM B108 Aluminum-Alloy Permanent Mold Castings
  • ASTM B209 Aluminum and Aluminum-Alloy Sheet and Plate
  • ASTM B210 Aluminum and Aluminum-Alloy Drawn Seamless Tubes
  • ASTM B211 Aluminum and Aluminum-Alloy Rolled or Cold Finished Bar, Rod, and Wire
  • ASTM B221 Aluminum and Aluminum-Alloy Extruded Bars, Rods, Wire, Profiles, and Tubes
  • ASTM B241 Aluminum and Aluminum-Alloy Seamless Pipe and Seamless Extruded Tube
  • ASTM B247 Aluminum and Aluminum-Alloy Die Forgings, Hand Forgings, and Rolled Ring Forgings
  • ASTM B265 Titanium and Titanium Alloy Strip, Sheet, and Plate
  • ASTM B308 Aluminum-Alloy 6061-T6 Standard Structural Profiles
  • ASTM B348 Titanium and Titanium Alloy Bars and Billets
  • ASTM B367 Titanium and Titanium Alloy Castings
  • ASTM B557 Tension Testing Cast Aluminum Magnesium Test Equipment
  • ASTM B591 Copper-Zinc-Tin and Copper-Zinc-Tin-Iron-Nickel Alloys Plate, Sheet, Strip, and Rolled Bar
  • ASTM B861 Titanium and Titanium Alloy Seamless Pipe
  • ASTM B862 Titanium and Titanium Alloy Welded Pipe
  • ASTM B863 Titanium and Titanium Alloy Wire
  • ASTM D1002 Apparent Shear Strength of Single-Lap-Joint Adhesively Bonded Metal Specimens by Tension Loading (Metal-to-Metal)
  • ASTM D3528 Strength Properties of Double Lap Shear Adhesive Joints by Tension Loading
  • ASTM D5656 Thick-Adherend Metal Lap-Shear Joints for Determination of the Stress-Strain Behavior of Adhesives in Shear by Tension Loading
  • ASTM E8 Tension Testing of Metallic Materials
  • ASTM E345 Tension Testing of Metallic Foil
  • ASTM F2516 Tension Testing of Nickel-Titanium Superelastic Materials

Технические характеристики

Основные технические и метрологические характеристики термометров жидкостных стеклянных ASTM модификации ASTM 1С, 2С, 3С, 5С, 6С, 7С, 8С, 9С, 10С, 11С, 12С, 13С, 18С, 22С, 28С, 33С, 34С, 35С, 37С, 40С, 44С, 45С, 46С, 47С, 54С, 61С, 63С, 64С, 72С,88С, 93С, 96С, 99С, 114С, 120С, 121С, 123С, 127С, 128С приведены в таблице 1.

Моди

фи

кация

термо

метра

ASTM

Диапазон

измерения,

°С

Цена

деле

ния,

°С

Пределы

допускаемой

абсолютной

погрешности,

°С

Г лубина погружения, мм

Длина

деле

ния

шка

лы,

мм,

не

менее

Длина термометра L ,мм

Диаметр термометра d, мм

1

2

3

4

5

6

7

8

от -20 до 150

1

±1

76

0,70

317±5

6,5±0,5

от -5 до 300

1

±1

76

0,70

390±5

5,5±0,5

от -5 до 400

1

±1 (от -5 до 370 °С вкл.) ±1,5 (св. 370 °С)

76

0,43

410±5

6,5±0,5

от -38 до 50

1

±1 (от 50 до -33 °С вкл.); ±2 (ниже -33 °С)

108

0,50

225±5

6,5±0,5

от -80 до 20

1

±1 (от 20 до — 33 °С вкл.); ±2 (ниже -33 °С)

76

0,70

225±5

6,5±0,5

от -2 до 300

1

±1

полное

0,43

380±5

7,5±0,5

от -2 до 400

1

±1 (от -2 до 370 °С вкл.); ±1,5 (св. 370 °С)

полное

0,43

380±5

6,5±0,5

от -5 до 100

0,5

±0,5

57

0,5

285±5

6,5±0,5

10С

от 90 до 370

2

±1,5

57

0,90

285±5

7,5±0,5

11С

от -6 до 400

2

±2

25

0,70

305±5

6,5±0,5

12С

от -20 до 102

0,2

±0,2

полное

0,54

415±5

7,5±0,5

13С

от 155 до 170

0,5

±0,5

полное

0,61

150±5

7,5±0,5

18С

от 34 до 42

0,1

±0,1

полное

0,50

270±5

6±1

22С

от 95 до 103

0,1

±0,2

полное

0,50

270±5

6±1

28С

от 36,6 до 39,4

0,05

±0,1

полное

0,50

300±5

6,5±1,5

33С

от -38 до 42

0,2

±0,2

50

0,61

415±5

6±1

34С

от 25 до 105

0,2

±0,2

50

0,61

415±5

6,5±0,5

35С

от 90 до 170

0,2

±0,2

50

0,61

415±5

7,5±0,5

37С

от -2 до 52

0,2

±0,2

100

0,54

390±5

6,5±0,5

40С

от 72 до 126

0,2

±0,2

100

0,54

390±5

6,5±0,5

44С

от 18,6 до 21,4

0,05

±0,1

полное

0,50

300±5

6,5±0,5

45С

от 23,6 до 26,4

0,05

±0,1

полное

0,50

300±5

6,5±0,5

46С

от 48,5 до 51,4

0,05

±0,1

полное

0,50

300±5

6,5±0,5

47С

от 58,6 до 61,4

0,05

±0,1

полное

0,50

300±5

6,5±1,5

54С

от 20 до 100,6

0,2

±0,2

полное

0,70

307±5

6,5±1,5

61С

от 32 до 127

0,2

±0,2

79

0,61

375±5

6,5±0,5

63С

от -8 до 32

0,1

±0,1

полное

0,50

374±5

6,5±0,5

64С

от 25 до 55

0,1

±0,1

полное

0,50

374±5

6,5±0,5

72С

от-19,4до-16,6

0,05

±0,1

полное

0,50

300±5

6,5±1,5

88С

от 10 до 200

1

±1

57

0,70

282±5

5,5±0,5

93С

от 60 до 90

0,1

±0,2

76

0,61

365±5

6,5±0,5

96С

от 120 до 150

0,1

±0,2

76

0,61

365±5

6,5±0,5

1

2

3

4

5

6

7

8

99С

от -50 до 5

0,2

±0,4

35

0,50

300±5

6,7±1,2

114С

от -8 до 20

0,5

±1

полное

0,59

295±5

6,7±1,2

120С

от 38,6 до 41,4

0,05

±0,1

полное

0,50

300±5

6,5±1,5

121С

от 98,6 до 101,4

0,05

±0,1

полное

0,50

300±5

6,5±1,5

123С

от -35 до -25

0,1

±0,3

полное

0,50

295±5

7±1

124С

от -25 до -15

0,1

±0,3

полное

0,50

295±5

7±1

127С

от -21,4 до -18,6

0,05

±0,1

полное

0,50

300±5

6,5±1,5

128С

от -1,4 до 1,4

0,05

±0,1

полное

0,50

300±5

6,5±1,5

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About This Item

Full Description

1.1 These test methods2 cover procedures and definitions for the mechanical testing of steels, stainless steels, and related alloys. The various mechanical tests herein described are used to determine properties required in the product specifications. Variations in testing methods are to be avoided, and standard methods of testing are to be followed to obtain reproducible and comparable results. In those cases in which the testing requirements for certain products are unique or at variance with these general procedures, the product specification testing requirements shall control.

1.2 The following mechanical tests are described:

Sections

               Tension

6 to 14

               Bend

15

               Hardness

16

                    Brinell

17

                    Rockwell

18

                    Portable

19

               Impact

20 to 30

               Keywords

32

1.3 Annexes covering details peculiar to certain products are appended to these test methods as follows:

Annex

     Bar Products

Annex A1

     Tubular Products

Annex A2

     Fasteners

Annex A3

     Round Wire Products

Annex A4

     Significance of Notched-Bar Impact Testing

Annex A5

     Converting Percentage Elongation of Round Specimens to           Equivalents for Flat Specimens

Annex A6

     Testing Multi-Wire Strand

Annex A7

     Rounding of Test Data

Annex A8

     Methods for Testing Steel Reinforcing Bars

Annex A9

     Procedure for Use and Control of Heat-Cycle Simulation

Annex A10

1.4 The values stated in inch-pound units are to be regarded as the standard.

1.5 When this document is referenced in a metric product specification, the yield and tensile values may be determined in inch-pound (ksi) units then converted into SI (MPa) units. The elongation determined in inch-pound gauge lengths of 2 or 8 in. may be reported in SI unit gauge lengths of 50 or 200 mm, respectively, as applicable. Conversely, when this document is referenced in an inch-pound product specification, the yield and tensile values may be determined in SI units then converted into inch-pound units. The elongation determined in SI unit gauge lengths of 50 or 200 mm may be reported in inch-pound gauge lengths of 2 or 8 in., respectively, as applicable.

1.5.1 The specimen used to determine the original units must conform to the applicable tolerances of the original unit system given in the dimension table not that of the converted tolerance dimensions.

Note 1: This is due to the specimen SI dimensions and tolerances being hard conversions when this is not a dual standard. The user is directed to Test Methods A1058 if the tests are required in SI units.

1.6 Attention is directed to ISO/IEC 17025 when there may be a need for information on criteria for evaluation of testing laboratories.

1.7 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

1.8 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

321h Stainless Steel Pipe

321h stainless steel pipe,Standard Specification for Electric-Fusion-Welded Austenitic Chromium-Nickel Alloy Steel Pipe for High-Temperature Service.

Grades:304, 304L, 310S, 316,316L,316H,317L,321,321H, 347, 347H, 904L …

Outer diameter size:Electric Fusion Welded / ERW- 8″ NB To 110″ NB (Nominal Bore Size)

Wall thickness:Schedule 10 To Schedule 160 (3 mm to 100 mm Thickness)

Classes(CL):CL1,CL2,CL3,CL4,CL5

Five classes of pipe are covered as follows:

ASTM A358 CL1 — Pipe shall be double welded by processes employing filler metal in all passes and shall be completely radiographed.

ASTM A358 CL2 — Pipe shall be double welded by processes employing filler metal in all passes. No radiography is required.

ASTM A358 CL3 — Pipe shall be single welded by processes employing filler metal in all passes and shall be completely radiographed.

ASTM A358 CL4 — Same as Class 3 except that the weld pass exposed to the inside pipe surface may be made without the addition of filler metal.

ASTM A358 CL5 — Pipe shall be double welded by processes employing filler metal in all passes and shall be spot radiographed.

Pipe ends:Plain Ends / Beveled Ends

ASTM A358 EFW Stainless Steel Pipe (TP304)Dimension Table:

Nominal

Outside

Nominal
 Wall Thickness (mm)

Diameter

Diameter

ASME
 B36.19M

ASME
 B36.10M

NPS

(mm)

SCH5S

SCH10S

SCH40S

SCH80S

SCH5

SCH10

SCH20

STD

XS

1/4

13.72

1.65

2.24

3.02

1.65

2.24

3.02

3/8

17.15

1.65

2.31

3.2

1.65

2.31

3.2

1/2

21.34

1.65

2.11

2.77

3.73

1.65

2.11

2.77

3.73

3/4

26.67

1.65

2.11

2.87

3.91

1.65

2.11

2.87

3.91

1

33.4

1.65

2.77

3.38

4.55

1.65

2.77

3.38

4.55

1 1/4

42.16

1.65

2.77

3.56

4.85

1.65

2.77

3.56

4.85

1 1/2

48.26

1.65

2.77

3.68

5.08

1.65

2.77

3.68

5.08

2

60.33

1.65

2.77

3.91

5.54

1.65

2.77

3.91

5.54

2 1/2

73.03

2.11

3.05

5.16

7.01

2.11

3.05

5.16

7.01

3

88.9

2.11

3.05

5.49

7.62

2.11

3.05

5.49

7.62

3 1/2

101.6

2.11

3.05

5.74

8.08

2.11

3.05

5.74

8.08

4

114.3

2.11

3.05

6.02

8.56

2.11

3.05

6.02

8.56

5

141.3

2.77

3.4

6.55

9.53

2.77

3.4

6.55

9.53

6

168.28

2.77

3.4

7.11

10.97

2.77

3.4

7.11

10.97

8

219.08

2.77

3.76

8.18

12.7

2.77

3.76

6.35

8.18

12.7

10

273.05

3.4

4.19

9.27

12.7

3.4

4.19

6.35

9.27

12.7

12

323.85

3.96

4.57

9.53

12.7

3.96

4.57

6.35

9.53

12.7

14

355.6

3.96

4.78

9.53

12.7

3.96

6.35

7.92

9.53

12.7

16

406.4

4.19

4.78

9.53

12.7

4.19

6.35

7.92

9.53

12.7

18

457.2

4.19

4.78

9.53

12.7

4.19

6.35

7.92

9.53

12.7

20

508

4.78

5.54

9.53

12.7

4.78

6.35

9.53

9.53

12.7

22

558.8

4.78

5.54

4.78

6.35

9.53

9.53

12.7

24

609.6

5.54

6.35

9.53

12.7

5.54

6.35

9.53

9.53

12.7

26

660.4

7.92

12.7

9.53

12.7

28

711.2

7.92

12.7

9.53

12.7

30

762

6.35

7.92

6.35

7.92

12.7

9.53

12.7

32

812.8

Thickness
 :6.35~30mm

|

|

84 

2133.6

Remark

(1)Marking:Within
 production capability. 

(2)Other nominal diameter and wall thickness
 subject to the approval of vendor and purchaser. 

(3)Calculating formula for the value of mass
 (kg/m):304/L, 316/L

Electric Fusion Welded EFW pipe is formed by rolling plate and welding the seam.LINKUN manufacturer and supply ASTM 358/SA358 EFW stainless steel pipe according ASME, ASTM standard. We have exported ASTM A358 Grade 304 EFW stainless steel pipefor many years,If any need, please feel free to contact us.

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