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6mm 8mm10mm Seamless Steel Tube

  • Carbon Steel, Alloy Steel, Stainless Steel

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Seamless Steel Tube

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seamless steel tube supplier

Description

Summary:

A seamless steel tube is a hollow cylindrical shape that's been formed from a single piece of steel, eliminating the need for any welded joints. This manufacturing process sets it apart from tubes that are welded, offering numerous benefits such as increased sturdiness, longevity, and adaptability for a wide range of uses.



Production Process:

The manufacturing of seamless steel tubes involves the following key steps:

  1. Billets Creation: Solid steel billets are heated to high temperatures.

  2. Hollowing Process: The heated billet is pierced to form a hollow tube.

  3. Rotary Piercing: The tube undergoes rotary piercing to achieve the desired dimensions.

  4. Elongation: The tube is elongated and reduced to the required size.

  5. Heat Treatment: The seamless tube undergoes heat treatment processes to enhance its mechanical properties.

IMG_2082


Key Features:

  1. No Weld Seams: The absence of weld seams eliminates weak points, enhancing the tube's structural integrity and resistance to pressure.

  2. Uniformity: Seamless tubes boast uniform dimensions and thickness throughout, ensuring consistent performance.

  3. Strength and Durability: Seamless steel tubes exhibit high tensile strength and durability, making them suitable for demanding applications.

  4. Corrosion Resistance: The seamless manufacturing process reduces the risk of corrosion, contributing to a longer lifespan.


Types of Seamless Steel Tubes:

  1. Hot Finished Seamless Tubes: Produced at high temperatures, these tubes have smoother surfaces and tighter dimensional tolerances.

  2. Cold Drawn Seamless Tubes: Manufactured at lower temperatures, these tubes are characterized by a smoother finish and increased dimensional accuracy.


Applications:

Seamless steel tubes find applications in various industries, including:

  • Oil and Gas: Exploration, drilling, and transportation.

  • Automotive: Engine components, exhaust systems.

  • Construction: Structural components, foundations.

  • Mechanical Engineering: Machinery parts, precision components.

  • Power Generation: Boiler tubes, heat exchangers.


Advantages:

  1. Strength and Reliability: Seamless tubes are renowned for their strength and reliability in critical applications.

  2. Uniformity: The absence of weld seams ensures uniform properties throughout the tube length.

  3. Precision: Seamless tubes can be manufactured with precise dimensions, meeting stringent industry standards.

  4. Versatility: Their diverse range of sizes and specifications makes seamless steel tubes suitable for a wide array of applications.


Standard

COLD DRAWN SEAMLESS STEEL TUBE

Standards

Steel Grades

Size Range

DIN

2391

ST35/45/52

OD2 - 60mm × WT0.3 -10mm

1629

ST37/44/52

OD2 - 60mm × WT0.3 -10mm

1630

ST37.4/44.4/52.4

OD2 - 60mm × WT0.3 -10mm

2445

ST35/ST52/ST37.4//52.4

OD2 - 60mm × WT0.3 -10mm

73000

ST 35 / 45 / 52/ 37.4 / 44.4 /52.4

OD3 - 30mm  × ID 1 - 12.5 mm

GB/T

8162

10/20/16Mn/35/45/30CrMo/42CrMo/etc

OD2 - 60mm × WT0.3 -10mm

8163

10/20/16Mn/35/45/30CrMo/42CrMo/etc

OD2 - 60mm × WT0.3 -10mm

3639

10/20/16Mn/35/45/30CrMo/42CrMo/etc

OD2 - 60mm × WT0.3 -10mm

3093

10/20/16Mn/35/45/30CrMo/42CrMo/etc

OD3 - 30mm  × ID 1 - 12.5 mm

EN

10305-1

E215/235/255/355

OD2 - 60mm × WT0.3 -10mm

10305-4

E215/235/255/355

OD2 - 60mm × WT0.3 -10mm

ASTM

A822-A450

A822

OD2 - 60mm × WT0.3 -10mm

A179-A450

A179

OD2 - 60mm × WT0.3 -10mm

A519

1010/1015/1025/1030/1045/4130/4140/etc

OD2 - 60mm × WT0.3 -10mm

SAE

J524

Low carbon steel

OD2 - 60mm × WT0.3 -10mm

J529

Low carbon steel

OD3 - 30mm  × ID 1 - 12.5 mm

JIS

G3445

STKM11A/12A/12B/12C/13A/13B/13C/S45C/etc

OD2 - 60mm × WT0.3 -10mm

G3455

STS35/38/42/49

OD3 - 30mm  × ID 1 - 12.5 mm

ISO

8535

ST 35 / 45 / 52/ 37.4 / 44.4 /52.4

OD3 - 30mm  × ID 1 - 12.5 mm

NF

A49-310

TU37b/TU52b

OD2 - 60mm × WT0.3 -10mm

BS

3602

CFS 360

OD2 - 60mm × WT0.3 -10mm

6323(-4)

CFS2/CFS3/CFS4/CFS5

OD2 - 60mm × WT0.3 -10mm

ASTM

A269

304,304L, 316, 316L

OD2 - 60mm × WT0.3 -10mm

EN

10216-5

1.4401, 1.4404

OD2 - 60mm × WT0.3 -10mm

Other carbon, alloy and stainless steel grades and sizes available upon customer's request

Delivery conditions:
BK (+C) BKW (+LC) BKS (+SR) GBK (+A) NBK (+N)
Major Inspection Items:  Tensile stength, Yield stength, Elongation, Flattenging, Flaring,  Chemical analysis Eddy Current Test 100%, Size and surface checking 100%                                                                                            

Certificates: according to EN 10204 3.1



Conclusion:

Choose our Seamless Steel Pipe for a reliable, high-quality, and cost-effective solution to your fluid conveyance and structural needs. We are committed to delivering a seamless experience both in product and service.



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Zhangjiagang Chewit International Co.,ltd, is the professional supplier in china for high precision seamless steel pipe of carbon, alloy.

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