seamless pipe grade

Seamless pipe classification is largely determined based on various standards. This type of hollow section is primarily employed to transport fluids. It can be found incorporated into the manufacture of components for machinery and structures, such as component parts for oil wells, automobile transmission shafts, bicycle frames and building scaffolds. Its ability to transmit fluids in large quantities or at high levels of pressure makes it ideal for deployment in chemical or power plants.

The American Iron and Steel Institute (AISI) categorizes seamless pipes based on varying standards. Grade A is the pinnacle of quality, commonly used in high-pressure and extreme temperature conditions. Falling below Grade A is Grade B, accommodating moderate-pressure and temperature applications. At the bottom of the three grades is Grade C, manufactured for low-pressure and temperature applications.

The American Petroleum Institute (API) is renowned for their criteria which grades seamless pipe according to different standards. Notably, two quality levels prevail – API 5L, the highest quality which is frequently deployed in situations requiring robust pressures and temperatures, and API 5CT, the secondary standard of excellence typically used in applications with moderated demands of this nature.

The Society of Automotive Engineers (SAE) classifies seamless pipes with three distinct qualities. SAE J526 is the superior choice, used in challenging conditions that require high pressures and temperatures. Second in rank is SAE J527, utilized in moderate settings such as those featuring moderate-pressure and moderate-temperature requirements. The last grade is SAE J528 which is suited for environments with low pressures and temperatures.

Seamless pipe is categorized according to different standards by the American Society for Testing and Materials (ASTM). These classifications range from the highest quality, ASTM A106, which typically serves in applications where high-pressure and high-temperature levels are at play, to the next highest grade of ASTM A53, which is usually used in moderate-pressure and moderate-temperature applications. Finally, ASTM A333 stands for the lowest grade and finds application most often in settings with low-pressure and low-temperature requirements.

Seamless pipe is ranked according to the British Standard (BS). The highest quality is BS 3602-1, typically used in settings where pressure and temperature are high. One level down is BS 3603-1 which works best in moderate temperature and pressure scenarios. The lowest grade, BS 3604-1, is intended for use in areas where conditions are low.

Distinct categories of seamless pipe exist within the Japanese Industrial Standard (JIS), each exhibiting distinct characteristics based on grade and purpose. Of the three grades, JIS G3441 is the most superior option, often favoured in intense environments such as in high-pressure and high-temperature situations. The second highest quality – JIS G3444 – is suitable for moderate-pressure and moderate-temperature contexts, while the lowest grade, JIS G3445, is commonly employed in low-pressure and low-temperature scenarios.

When selecting a material to make seamless pipe from, the intended application of the pipe must be taken into account. The most common materials are carbon steel, stainless steel, nickel alloy, and titanium. Carbon steel is the most popular choice for low-pressure, low-temp projects. Stainless steel is usually employed for moderate-pressure and moderate-temperature undertakings. Nickel alloy is used when dealing with high-pressure and high-temperature applications. For extremely intense pressure and high temperatures, titanium is the material of choice for constructing seamless pipe.


Post time: 2023-06-25

Related Product

  • Scaffold Steel Pipe

    Scaffold Steel Pipe

    Introduction to scaffold steel pipe Scaffold steel pipes are generally called scaffold pipes, which is a special term used by people in building or construction. Scaffold steel pip […]

  • Hot Dip Galvanized Round Steel Pipe

    Hot Dip Galvanized Round Steel Pipe

    Yuantai Derun Steel Pipe Manufacturing Group produces hot-dip galvanized round steel pipes, which are sold directly by manufacturers, support customization, and have guaranteed qua […]

  • Pre Galvanized Round Steel Pipe

    Pre Galvanized Round Steel Pipe

    The round pipe with galvanized strip is made of galvanized strip steel, which is generally 0.6MM-2MM. It is processed and formed at one time, with the specification of 15 * 15-100 […]

  • Round Seamless Steel Pipe

    Round Seamless Steel Pipe

    Seamless steel pipe is a steel pipe formed by piercing the whole round steel, and there is no weld on the surface, which is called seamless steel pipe. According to the production […]

  • ERW Round Steel Pipe

    ERW Round Steel Pipe

    Standard:Hollow section:ASTM A500/501,EN10219/10210, JIS G3466,GB/T6728/T3094/3091,CSA G40.20/G40.21 Section Shape: round OD(outer meter): 10.3mm-609mm Application: Structural type […]

  • LSAW Steel Pipe(Longitudinally Submerged Arc Welding Tube)

    LSAW Steel Pipe(Longitudinally Submerged Arc Welding Tube)

    Lsaw Steel Pipe(Longitudinally Submerged Arc Welding Tube) JCOE is a pipe making technology for the production of large diameter thick wall steel pipes. It mainly adopts the produc […]

  • Round Welded Pipe

    Round Welded Pipe

    Since the 1930s, with the rapid development of continuous rolling production of high quality strip steel and the progress of welding and inspection technology, the quality of weld […]

  • UL797 American Standard Certified EMT Threading Pipe EMT Pipe

    UL797 American Standard Certified EMT Threading Pipe EMT Pipe

    OD(outer diameter): 22mm-112mm Thickness: 0.75- 3 mm Place of Origin: Tianjin, China Application: Structural type or fluid transportation Certification:CE,LEED,BV,PHD&EPD,DNV,B […]

  • GI Circular Steel Pipe

    GI Circular Steel Pipe

    Galvanized round steel pipe Generally, there are two major categories: pre galvanized round steel pipes and hot-dip galvanized round steel pipes. Hot dip galvanized pipe is to make […]