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    Spiral Welded Steel Tubes Api Spec 5L For Gas Pipes

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    • Spiral Welded Steel Tubes Api Spec 5L For Gas Pipes

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    Our spiral welded tubes are manufactured with care. Starting with steel strips or rolling plates, we bend and deform these materials into circles. We then weld them together to form a strong pipe. By using different welding methods such as arc welding, we guarantee the best strength and durability of our products.

     

    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 indexofimpact energy and shearing   area may be    chosen. ForL555, 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 becalculated 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 anyor both ofthe 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

    Spiral welded pipes have many advantages over seamless steel pipes. Notably, they are more cost-effective and have higher productivity. These pipes reduce manufacturing costs without compromising performance. Additionally, our spiral welded steel pipes ensure easier installation as it does not require complex and time-consuming welding procedures.

    At Cangzhou Spiral Steel Pipes Group Co., Ltd., we take pride in our strict quality control measures. From contract signing to raw material procurement, production, inspection, and after-sales service, every step is carefully managed. Furthermore, our products are regularly inspected by various professional inspection departments, ensuring that our customers receive quality and performance.

     No. Name of Tester Model Quantity Manufacturer Calibration Period Testing Content Test Precision Performance and Parameters of Equipment
     1 ElectronicUltrasonic

    Thickness Sensor

    		    4 台 BeijingShuanghuan

    Corporation

    		 One year Testing the thickness of rolling plate andsteel pipe  0.1mm Thickness range: 0-100mm
    2 Computer   2 台 Lenovo   Quality management   Memory: DDR2G; hard disc: 320G.
      3
    Electronic Hook

    Scale

    		   03C-20t   2 台 Changzhou

    Tuoli Electronic

    Instrument Co.,

    Ltd.

    		 Half year Weighing of raw materials   Maximum distance of wireless transmission: 200m; and stability time: less than 3s.

    Our spiral welded steel pipes are widely used in the oil and gas transmission industry. They are also widely used in pipe piles and bridge piers. With its exceptional strength and durability, our pipes can withstand harsh environmental conditions, ensuring long-lasting performance and reliability.

     

    We understand the importance of providing prompt and reliable customer service. Our dedicated team of professionals can assist customers at every stage, from product selection to installation and maintenance. Our goal is to exceed our customers' expectations by providing only the highest quality products and ensuring complete customer satisfaction.

    All in all, with our spiral welded steel pipe, you can trust that it's a cost-effective, efficient and reliable solution for your natural gas transmission needs. Our commitment to superior product quality, strict quality control measures and exceptional customer service has made us the first choice for customers around the world. Contact us today to discuss your project needs and experience our exceptional products and services.

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