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    Underground Gas Lines – X65 SSAW Steel Pipe

    Underground Gas Lines – X65 SSAW Steel Pipe Featured Image
    • Underground Gas Lines – X65 SSAW Steel Pipe

    Short Description:

    Introducing our innovative SSAW steel pipe, a high quality product designed for a variety of applications, especially underground natural gas pipelines. This X65 SSAW line pipe is widely used in welding fluid transportation pipelines, metal structures, pile foundations, etc. With its superior performance and durability, this product is considered a must-have for various industries and infrastructure projects.


    Product Detail

    Product Tags

    Spiral submerged arc welded pipe is an important part of water supply engineering, petrochemical industry, chemical industry, electric power industry, agricultural irrigation, and urban construction. Its versatility and reliability have made it one of the twenty key products developed in our country, demonstrating its importance and impact on various industries.

    SSAW steel pipe is custom-made for the transport of liquids and is ideally suited for water supply and drainage systems. Its sturdy construction make it ideal for ensuring efficient and reliable fluid transfer. In addition, it is also suitable for gas transportation such as coal gas, steam, and liquefied petroleum gas. Its high tensile strength and corrosion resistance ensure safe and efficient gas delivery and meet the strict requirements of gas delivery systems.

    Main Physical and Chemical Properties of Steel Pipes (GB/T3091-2008,  GB/T9711-2011 and API Spec 5L)

    		        

    Standard

    Steel Grade

    Chemical Constituents (%)

    Tensile Property

    Charpy(V notch)Impact Test
    c Mn p s Si

    Other

    Yield Strength（Mpa）

    Tensile Strength（Mpa）

    （L0=5.65 √ S0 ）min Stretch Rate  （%）
    max max max max max min max min max D ≤ 168.33mm D ＞ 168.3mm

    GB/T3091 -2008

    		 Q215A ≤ 0.15 0.25 ＜ 1.20 0.045 0.050 0.35

    Adding Nb\V\Ti in accordance with  GB/T1591-94

    		 215   335   15 > 31  
    Q215B ≤ 0.15 0.25-0.55 0.045 0.045 0.035 215 335 15 > 31
    Q235A ≤ 0.22 0.30 ＜ 0.65 0.045 0.050 0.035 235 375 15 >26
    Q235B ≤ 0.20 0.30 ≤ 1.80 0.045 0.045 0.035 235 375 15 >26
    Q295A 0.16 0.80-1.50 0.045 0.045 0.55 295 390 13 >23
    Q295B 0.16 0.80-1.50 0.045 0.040 0.55 295 390 13 >23
    Q345A 0.20 1.00-1.60 0.045 0.045 0.55 345 510 13 >21
    Q345B 0.20 1.00-1.60 0.045 0.040 0.55 345 510 13 >21

    GB/T9711-2011（PSL1）

    		 L175 0.21 0.60 0.030 0.030  

    Optional adding one of Nb\V\Ti elements or any combination of them

    		 175   310  

    27

    One or two of the toughness index of impact energy and shearing area may be chosen. For L555, see the standard.
    L210 0.22 0.90 0.030 0.030 210 335

    25
    L245 0.26 1.20 0.030 0.030 245 415

    21
    L290 0.26 1.30 0.030 0.030 290 415

    21
    L320 0.26 1.40 0.030 0.030 320 435

    20
    L360 0.26 1.40 0.030 0.030 360 460

    19
    L390 0.26 1.40 0.030 0.030 390 390

    18
    L415 0.26 1.40 0.030 0.030 415 520

    17
    L450 0.26 1.45 0.030 0.030 450 535

    17
    L485 0.26 1.65 0.030 0.030 485 570

    16

    API 5L    （PSL 1）

    		 A25 0.21 0.60 0.030 0.030  

    For grade B steel,Nb+V ≤ 0.03%;for steel ≥ grade  B,optional adding Nb or V or their combination, and    Nb+V+Ti ≤ 0.15%

    		 172   310  

    （L0=50.8mm）to be calculated according to the following formula:e=1944·A0 .2/U0 .0 A:Area of sample in mm2        U: Minimal specified tensile strength in Mpa

    None or any or both of the impact energy and the shearing area is required as toughness criterion.
    A 0.22 0.90 0.030 0.030   207 331
    B 0.26 1.20 0.030 0.030   241 414
    X42 0.26 1.30 0.030 0.030   290 414
    X46 0.26 1.40 0.030 0.030   317 434
    X52 0.26 1.40 0.030 0.030   359 455
    X56 0.26 1.40 0.030 0.030   386 490
    X60 0.26 1.40 0.030 0.030   414 517
    X65 0.26 1.45 0.030 0.030   448 531
    X70 0.26 1.65 0.030 0.030   483 565

    One of the main applications for our spiral submerged arc welded steel pipes is underground gas line. With its superior quality and performance, it is the first choice for building reliable and safe natural gas transportation networks.

    Underground Water Pipe

    X65 SSAW line pipe is constructed from high-grade materials ensuring superior strength and resiliency. This makes it ideal for applications requiring high pressure and resistance to environmental factors. Its suitability for underground installations further highlights its robust design and ability to withstand challenging conditions, making it the solution of choice for underground gas pipeline projects.

    As a trusted and proven product, our spiral submerged arc welded steel pipes are widely adopted across industries and infrastructure projects due to their superior performance, durability and reliability. Its high-quality construction make it the first choice for fluid and gas transportation systems, especially in underground gas line where safety and effectiveness are critical.

    In summary, spiral submerged arc welded steel pipe is an excellent product designed to meet the diverse needs of fluid and gas delivery systems. Due to its versatility and reliability, it has become a major component in various industries and infrastructure projects, especially underground gas line. Its exceptional quality and performance make it a valuable asset in ensuring an efficient and safe gas transportation network. Trust the reliability and performance of our spiral submerged arc welded steel pipes for all your fluid and gas transportation needs.

     

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