X42 SSAW Pipe Spiral Welded Tube
Introduce:
In the field of steel pipes, various welding techniques are used to achieve high-quality and reliable connections. One such method is spiral submerged arc welding (SAW), which plays a key role in the production of X42 SSAW pipe. As an industry leader, Cangzhou Spiral Steel Pipe Group Co., Ltd., known for its Wuzhou brand, adheres to international standards and ensures that its products (including X42 spiral submerged arc welded pipe) meet API Spec 5L, ASTM A139, ASTM A252 and EN 10219. In this blog we delve into the fascinating world of X42 SSAW pipe, highlighting the advantages of using spiral submerged arc welding in the production of spirally welded pipe.
Learn about Spiral Submerged Arc Welding (SAW):
Spiral submerged arc welding, also known as SAW, is a specialized welding technique used to manufacture spirally welded pipes such as X42 SSAW pipe. The technique involves melting the wire flux and base metal using the heat generated by the arc combustion between the wire and the flux beneath the flux layer. The flux layer acts as a protective barrier, preventing atmospheric contaminants from interfering with the soldering process. This method has several advantages over other welding techniques.
The Mechanical Properties Of The SSAW Pipe
|
steel grade |
minimum yield strength |
minimum Tensile strength |
Minimum Elongation |
|
B |
245 |
415 |
23 |
|
X42 |
290 |
415 |
23 |
|
X46 |
320 |
435 |
22 |
|
X52 |
360 |
460 |
21 |
|
X56 |
390 |
490 |
19 |
|
X60 |
415 |
520 |
18 |
|
X65 |
450 |
535 |
18 |
|
X70 |
485 |
570 |
17 |
The Chemical Composition Of The SSAW Pipes
|
steel grade |
C |
Mn |
P |
S |
V+Nb+Ti |
|
Max % |
Max % |
Max % |
Max % |
Max % |
|
|
B |
0.26 |
1.2 |
0.03 |
0.03 |
0.15 |
|
X42 |
0.26 |
1.3 |
0.03 |
0.03 |
0.15 |
|
X46 |
0.26 |
1.4 |
0.03 |
0.03 |
0.15 |
|
X52 |
0.26 |
1.4 |
0.03 |
0.03 |
0.15 |
|
X56 |
0.26 |
1.4 |
0.03 |
0.03 |
0.15 |
|
X60 |
0.26 |
1.4 |
0.03 |
0.03 |
0.15 |
|
X65 |
0.26 |
1.45 |
0.03 |
0.03 |
0.15 |
|
X70 |
0.26 |
1.65 |
0.03 |
0.03 |
0.15 |
The Geometric Tolerance Of The SSAW Pipes
|
Geometric tolerances |
||||||||||
|
outside diameter |
Wall thickness |
straightness |
out-of-roundness |
mass |
Maximum weld bead height |
|||||
|
D |
T |
|||||||||
|
≤1422mm |
＞1422mm |
＜15mm |
≥15mm |
pipe end 1.5m |
full length |
pipe body |
pipe end |
T≤13mm |
T＞13mm |
|
|
±0.5% |
as agreed |
±10% |
±1.5mm |
3.2mm |
0.2% L |
0.020D |
0.015D |
‘+10% |
3.5mm |
4.8mm |
Hydrostatic Test
Advantages of spiral submerged arc welding:
1. Consistent and high quality welds: The SAW method used in X42 SSAW pipe produces uniform and high quality welds. When the arc is submerged in flux, it creates a controlled environment that protects the soldering area from external elements, ensuring consistent and reliable joints. This results in the production of spiral welded pipes with exceptional strength and durability.
2. Increased efficiency: Spiral submerged arc welding offers significant efficiency due to its automated nature. The process involves continuous, automatic feeding of the welding wire, resulting in faster productivity while maintaining precision. High deposition rates and minimal reliance on manual labor contribute to efficiency and cost-effectiveness.
3. Suitable for various applications: X42 SSAW pipe manufactured by spiral submerged arc welding is widely used in many industries. These pipes are used in oil and gas transportation, water pipelines, building structural support, piling foundations, and more. The versatility and reliability of the X42 SSAW tube make it ideal for critical applications.
4. Improved mechanical properties: The SAW method ensures better control of welding parameters during the fabrication of X42 spiral submerged arc welded pipes. This control can enhance mechanical properties, including impact toughness, yield strength and tensile strength. As a result, these pipes have excellent resistance to external forces and are suitable even for harsh environments.
In conclusion:
When we explore the world of spiral submerged arc welding in X42 SSAW pipe production, it becomes clear why this technique is widely used in the steel industry. Spiral submerged arc welding offers many advantages such as consistent weld seams, increased efficiency, versatility and improved mechanical properties, ensuring that spirally welded pipes, such as X42 SSAW steel pipes produced by Cangzhou Spiral Steel Pipe Group Co., Ltd., meet the highest quality standards. Therefore, in terms of reliability, durability and performance, the X42 SSAW tube proves to be an excellent choice for a wide variety of industrial applications.
