Расписание 40 черная стальная труба


Расписание 40 black steel pipe is a type of carbon steel pipe used in a variety of applications. The “расписание” number in pipe specifications refers to the thickness of the pipe wall, with higher numbers indicating a thicker wall. Here’s an overview of the characteristics and uses of Schedule 40 черная стальная труба:



  • Толщина стен: For Schedule 40, the wall thickness varies based on the diameter of the pipe. The wall thickness is more than sufficient for most high-pressure applications.
  • Материал: The pipe is made from carbon steel, which provides good strength and can be welded or fabricated with the right techniques and equipment.
  • Finish: The “черный” in black steel refers to the protective coating on the steel to prevent rust. This is achieved through a black oxide scale that forms on the surface of the steel during the hot fabrication process.
  • Долговечность: Расписание 40 black steel pipes are durable and designed to withstand high pressures and temperatures.
  • Диаметр: The nominal pipe size can range from very small to several feet in diameter. Однако, for most practical uses, common diameters are from 1/8 дюйм до 24 дюймы.


  • Сантехника: Widely used for transporting water, газ, воздух, and steam, as the schedule 40 thickness provides a good balance of strength and weight.
  • Structural Applications: Because of its strength, it can be used in structural applications such as handrails, строительные леса, and support columns.
  • Industrial: Used in process industries for conveying fluids under high pressure and temperature.
  • Fire Protection Systems: Often used for piping fire sprinkler systems due to its durability and resistance to heat.
  • Нефтяная и газовая промышленность: Расписание 40 pipes are used for some oil and gas applications due to their ability to withstand высокое давление,.
Business Type Производство & Sales
Product Description Caron & Low Alloy Seamless Steel Pipe
Advantaged Product Specification
English Chinese
Наружный диаметр
From 1/2 к 5 From SCH40 to XXS From 25 к 356 From4 to 80
Длина From 2m to 12.5m in accordance with customersrequirements
Chinese American German
10# ASTM A53-A St37 DIN1626
ASTM A106-A St37-2 DIN17175
ASTM A179-C St35.8 DIN17175
ASTM A192 St35.8 DIN17175
20# ASTM A53-B St42-2 DIN1626
ASTM A106-B St45-8 DIN17175
ASTM A178-C St45-4 DIN1629
45# ASTM A1045 CK45
16Мин. ASTM A210-C St52 DIN1629
37Мн5 J55
ХромМо АСТМ 4135,4150 CrMo4 DIN17212
40Кр АСТМ 5140 41Cr4

Installation Considerations:

  • Сварка: Black steel pipe is generally joined by welding. It requires proper technique and precautions to ensure a strong and safe connection.
  • Резьба: These pipes can also be connected using threaded connections, where the pipes are threaded on the ends and joined with fittings.
  • Защита от коррозии: Although the black oxide helps prevent rust, it is not a substitute for proper corrosion protection in corrosive environments. Additional coatings or paint may be applied depending on the usage conditions.
  • Code Compliance: Always ensure that any use of Schedule 40 black steel pipe complies with local building codes and standards for the application in question.

When purchasing or specifying Schedule 40 черная стальная труба, it’s important to verify the exact specifications, such as the diameter, толщина стен, длина, and any additional treatments needed for the intended application. Suppliers typically provide pipes in pre-cut lengths or custom cut to specifications.

6 Комментарии

  • amciik

    2023年12月21日 в am9:43

    What is Schedule 40 black steel pipe used for?

    • Ронсун2023

      2023年12月22日 в pm8:52

      Расписание 40 steel pipe makes sturdy and attractive curtain rods, shelves, coat hooks, floor lamps, and magazine racks. Of course, расписание 40 pipe’s primary application is transporting high-temperature, high-pressure liquids for commercial and residential properties in the oil and gas industry

  • food

    2023年12月22日 в am8:06

    What is the difference between SCH 40 and SCH 40S?

    • Ронсун2023

      2023年12月22日 в pm8:55

      Поэтому, the difference between SCH 40 and SCH 40S is the wall thickness, with SCH 40 being thicker and suitable for standard steel pipe applications, while SCH 40S is thinner and specifically designed for stainless steel pipes.

    • Ронсун2023

      2024年3月24日 в pm12:57

      The main purpose of sch 40 black steel pipes is to transport propane or natural gas to residential and commercial buildings. The pipeline has no seams, making it a better pipeline for carrying gas. Black steel pipes are also used for fire sprinkler systems.

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