Welded tube
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- Product Description
-
what is a Welded tube?
Shineyond Group produces Welded tube with precision hollow structural components manufactured through high-frequency (HF) or submerged arc welding (SAW) processes, mainly round and square profiles. Round welded steel pipe is a steel pipe welded by crimping and forming a steel plate or steel strip, and the general fixed length is 6 meters. Welded square pipes are square pipes welded from steel plates or steel strips after being crimped. It can also be referred to as welded pipes for short.
Excellent weld integrity combines for structural frames, mechanical systems, and fluid transfer applications. In addition, we offer value-added services, including custom cutting, bending, and post-weld heat treatment, to make our welding tube suitable for construction, automotive, oil/gas (API certified), and construction applications.
Welded tube Process
Welded pipes are formed from hot-rolled coils into smooth cylindrical shapes using a forming machine. The edges of the pipe blank are heated and melted by the skin and proximity effects of high-frequency current, or by arc combustion beneath a slag layer, before cooling and forming. Large-diameter or thicker welded pipes are typically made directly from the billet, while smaller and thin-walled pipes can be welded directly from steel strip. Afterwards, simple polishing and brushing are performed to complete the pipe.
Raw material uncoiling-leveling-end shearing and welding-loop-forming-welding-removal of internal and external weld beads-pre-correction-induction heat treatment-sizing and straightening-eddy current detection-cutting-water pressure inspection-pickling-final inspection (strict control)-packaging-shipping.
Common materials
The main materials of welded tube are：Q195, Q235A, Q235B, Q345, 20#, etc.
Round welded steel pipe specification
Outer diameter
Wall thickness
length
MOQ
Packing
Delivery time
20mm;25mm;32mm;40mm;
48mm;60mm;76mm;89mm;
108mm;114mm;133mm;
159mm;165mm;219mm;
1mm-6.25mm
4m-12m or other length for you requirement
30tons
Bundles or bulk
7-30days
Common size
Schedute number
Nominal Size
(inches)
Outer diameter
(mm)
Wall thickness
(mm)
Weight(black pipe)
(kg/m)
40
1/2
21.3
2.77
1.27
40
3/4
26.7
2.87
1.69
40
1
33.4
3.38
2.50
40
1-1/4
42.2
3.56
3.39
40
1-1/2
48.3
3.68
4.05
40
2
60.3
3.91
5.44
40
2-1/2
73.0
5.16
8.63
40
3
88.9
5.49
11.29
40
4
114.3
6.02
16.07
Square welded steel pipe specification specification
Outer diameter
Wall thickness
length
MOQ
Packing
Delivery time
10mm-200mm
0.5mm-9mm
6m-12m or other customized size
30tons
Bundles
Or bulk
7-30days
Common size
Size
(mm)
Length
(m)
Weight
(kg)
Packing
(pcs/bundle)
30×50×1.5
6
1120
104
30×50×1.7
6
1190
104
30×50×1.8
6
1330
104
30×50×2.0
6
1380
104
30×50×2.2
6
1640
104
30×50×2.5
6
1820
104
40×60×1.5
6
910
70
40×60×1.7
6
1030
70
40×60×1.8
6
1095
70
40×60×2.0
6
1200
70
40×60×2.2
6
1274
70
40×60×2.5
6
1480
70
40×40×1.5
6
1088
100
40×40×1.7
6
1226
100
40×40×1.8
6
1300
100
40×40×2.0
6
1431
100
40×40×2.2
6
1566
100
40×40×2.5
6
1766
100
50×50×1.5
6
860
64
50×50×1.7
6
968
64
50×50×1.8
6
1016
64
50×50×2.0
6
1038
64
50×50×2.2
6
1268
64
50×50×2.5
6
1386
64
40×80×1.5
6
830
50
40×80×1.7
6
918
50
40×80×1.8
6
896
50
40×80×2.0
6
1068
50
40×80×2.2
6
1178
50
40×80×2.5
6
1354
50
100×150×4.5
6
1224
12
100×150×4.75
6
1290
12
100×150×5.5
6
1486
12
100×150×5.75
6
1580
12
100×150×7.5
6
1988
12
100×150×7.75
6
2054
12
100×200×4.5
6
986
8
100×200×4.75
6
1040
8
100×200×5.5
6
1980
8
100×200×5.75
6
1248
8
100×200×7.5
6
1610
8
100×200×7.75
6
1660
8
150×200×4.75
6
914
6
150×200×5.5
6
1053
6
150×200×5.75
6
1100
6
150×200×7.5
6
1430
6
150×200×7.75
6
1465
6
150×200×8.5
6
1618
6
150×150×4.5
6
1110
9
150×150×4.75
6
1178
9
150×150×5.5
6
1348
9
150×150×5.75
6
1410
9
150×150×7.5
6
1812
9
150×150×7.75
6
1890
9
Welded tube Advantages
1. High strength and reliability：
Advanced welding technology (such as high-frequency induction welding or submerged arc welding) is used to ensure that the weld and the base material reach the same strength, ensuring the structural integrity of the steel pipe under high pressure and high load conditions.
2. Precision size control：
The cold rolling forming process can achieve a wall thickness accuracy of ±0.2mm and an outer diameter tolerance that can reach ASTM A500 standards, making it particularly suitable for size-sensitive prefabricated buildings and machinery manufacturing.
3. Diversified product portfolio：
We can produce products in a full range of sizes with diameters from 6mm to 2540mm, and support customized wall thickness, material (Q235B to X80 grade pipeline steel) and special coating treatments (galvanizing, epoxy resin, etc.).
4. Production efficiency advantage：
The continuous forming and welding production line speed can reach 60m/min, which is 3-5 times more efficient than traditional seamless pipe rolling and can meet the delivery needs of large-volume orders.
5. Full life cycle cost optimization：
Through online eddy current testing, ultrasonic testing and other quality control measures, the product service life is extended by more than 30%, significantly reducing the frequency of maintenance and replacement.
Welded pipes Applications
The various uses of welded steel pipes
Our high-quality welded steel pipes are used across a wide range of industries, including fluid transport, structural applications, and industrial uses. These durable pipes are essential components of municipal water systems, agricultural irrigation, and gas distribution networks (including coal, steam, and liquefied petroleum gas).
Industrial-grade performance
From mining operations to machinery manufacturing, they are used in ventilation systems, material handling equipment, and machine components. They are also widely used in furniture production and port machinery, and are available in customizable specifications to meet specific industrial needs. We offer a wide range of sizes and thicknesses, combining durability and cost-effectiveness for a wide range of industrial applications.
Structural excellence to meet architectural needs
In construction and infrastructure projects, our welded pipes provide reliable structural support for applications such as piling pipes, bridge components, and building frames. They are also essential for temporary structures like scaffolding systems, as well as permanent installations in ports, roads, and agricultural buildings. The excellent strength-to-weight ratio and dimensional accuracy of our welded pipes ensure long-lasting performance in demanding structural applications.
Reliable welded tube supplier
Shineyond Group is a leading manufacturer of welded tube. We provide high-quality, precision-made steel pipes for a variety of industrial applications. Manufactured using advanced technology and subject to strict quality control, we ensure our products are durable, perform well, and meet international standards.
Why Choose Us?
✅ Premium Quality – Made from high-grade steel with superior weld integrity and corrosion resistance.
✅ Wide Range – Available in various sizes, thicknesses, and specifications for fluid transport, structural, and industrial uses.
✅ Custom Solutions – Tailored to meet specific project requirements, including material grade, diameter, and surface finish.
✅ Reliable Supply – Consistent production capacity and on-time delivery to support your operations.
✅ Certified Excellence – Compliant with ISO, ASTM, and other industry standards for guaranteed performance.
Welded tube
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Contact us via email
Still deciding? Get samples first, Contact US !
Products Category
Tag list
Welded steel pipe
Welded round steel pipe
Black steel pipe
Spiral welded steel pipe
Black iron round pipe
Square welded steel pipe
Square steel tube
Square black steel pipe
Hollow square steel pipe
Black iron square pipe
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