Cronograma 40 tubo de acero negro


Cronograma 40 black steel pipe is a type of carbon steel pipe used in a variety of applications. El “cronograma” 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 tubo de acero negro:



  • Espesor de pared: 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.
  • Material: The pipe is made from carbon steel, which provides good strength and can be welded or fabricated with the right techniques and equipment.
  • Finish: El “negro” 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.
  • Durabilidad: Cronograma 40 black steel pipes are durable and designed to withstand high pressures and temperatures.
  • Diámetro: The nominal pipe size can range from very small to several feet in diameter. Sin embargo, for most practical uses, common diameters are from 1/8 pulgada a 24 pulgadas.


  • Plomería: Widely used for transporting water, gas, aire, 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, andamiaje, 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.
  • Industria de petróleo y gas: Cronograma 40 pipes are used for some oil and gas applications due to their ability to withstand altas presiones.
Business Type Fabricar & Sales
Product Description Caron & Low Alloy Seamless Steel Pipe
Advantaged Product Specification
English Chinese
Diámetro exterior
From 1/2 a 5 From SCH40 to XXS From 25 a 356 From4 to 80
Longitud 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
16Minnesota ASTM A210-C St52 DIN1629
37mn5 J55
CrMo ASTM 4135,4150 CrMo4 DIN17212
40cr ASTM 5140 41Cr4

Installation Considerations:

  • Soldadura: Black steel pipe is generally joined by welding. It requires proper technique and precautions to ensure a strong and safe connection.
  • Enhebrado: These pipes can also be connected using threaded connections, where the pipes are threaded on the ends and joined with fittings.
  • Protección contra la corrosión: 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 tubo de acero negro, it’s important to verify the exact specifications, such as the diameter, espesor de pared, longitud, and any additional treatments needed for the intended application. Suppliers typically provide pipes in pre-cut lengths or custom cut to specifications.

6 comentarios

    • Ronsun2023

      202322 de diciembre en pm8:52

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

    • Ronsun2023

      202322 de diciembre en pm8:55

      Por lo tanto, 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.

    • Ronsun2023

      2024年3月24日 en 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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