ASTM A671 GR.B70 / CC70 CL.12 / 22 / 32 EFW Pipes

Carbon steel pipes are one of the most popular types of pipes. They are widely used in various industries, including construction, oil and gas, and manufacturing. One type of carbon steel pipe that has gained popularity recently is the ASTM A671 CC70 CL.12 Carbon Steel EFW Pipe. The ASTM A671 CC70 CL.12 Carbon Steel EFW Pipe comes in different types, including welded and seamless pipes. Welded pipes are made by welding two pieces of metal together, while seamless pipes are manufactured without a seam. The welded pipes are less expensive and commonly used in applications where the pipe does not require high pressure or temperature resistance. On the other hand, seamless pipes are more expensive, but they are more durable and can withstand higher pressure and temperature.

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The ASTM A671 CC70 CL.22 Carbon Steel EFW Pipe is commonly used in the construction industry for building power plants, refineries, and chemical plants. It also manufactures water treatment plants, desalination plants, and paper mills. Its excellent ductility and weldability make it an ideal material for welding and fabrication.

One of the most significant benefits of the ASTM A671 CC70 CL.32 Carbon Steel EFW Pipe is its excellent strength and corrosion resistance. It is known for its reliable performance, even in harsh environments with high temperatures and pressure. Its excellent heat exchanger and condenser properties make it an ideal oil and gas industry material. Moreover, it is easy to install and maintain, making it a preferred choice for many industrial applications.
Other benefits of the ASTM A671 CC70 CL.12 Carbon Steel EFW Pipe include its cost-effectiveness and sustainability. It is an eco-friendly material that is 100% recyclable, making it an excellent choice for companies looking to reduce their carbon footprint. It is also a cost-effective solution for companies that require high-quality pipes but have a limited budget.

The ASTM A671 CC70 CL.12 Carbon Steel EFW Pipe is a versatile and durable material that has become increasingly popular in various industries. Its excellent strength, corrosion resistance, and high-temperature and pressure capabilities make it an ideal choice for different applications. Moreover, its cost-effectiveness and sustainability make it a preferred choice for companies looking for high-quality pipes that are also environmentally friendly.


ASTM A671 GR.B70 Class 12 EFW Pipes are commonly used in high-pressure services such as oil and gas transportation, power generation & chemical processing.

ASTM A671 GR CC70 Class 22 EFW Pipes offer several advantages, including high strength, good weldability, and excellent resistance to corrosion & stress cracking.

Class 12, Class 22, and Class 32 pipes differ in their design temperatures and minimum yield strengths. Class 12 pipes are for up to 315°C and have a yield strength of 46 ksi, Class 22 pipes are for up to 650°C and have a yield strength of 60 ksi, while Class 32 pipes are for up to 450°C and have a yield strength of 32 ksi.

Specification of ASTM A671 Grade B70 / CC70 Class 12/22/32 Carbon Steel EFW Pipes

Spec bag
Seamless EFW Pipe
Specifications : ASTM A671 / ASME SA671
Dimension Standard : ANSI B36.19M, ANSI B36.10
Type : EFW (ELECTRIC FUSION WELDED PIPES)
Class Designation : CLASS 10, 11, 12, 13, 20, 21, 22, 23, 30, 31, 32, 33, 40, 41, 42
Size : 16" NB To 100" NB (Nominal Bore Size)
ASTM A671 EFW Pipes Length : 5 To 7 Meters, 09 To 13 Meters, Single Random Length, Double Random Length And Customize Size.
Ends : Plain Ends / Beveled Ends / Coupling

Types of ASTM A671 Grade B70 / CC70 CL 12/22/32 CS EFW Pipes

ASTM A671 Gr B70 / CC70 CL 12/22/32 EFW Pipes

ASTM A671 GR. B70 EFW Pipes

  • - ASTM A671 Gr B70 CL.12 EFW Pipes
  • - A671 Carbon Steel Gr.B70 Class 22 EFW Pipes
  • - ASTM A671 Grade B70 CL 32 Carbon Steel EFW Pipes
  • - ASME SA671 Grade B70 Class 22 Carbon EFW Pipes
  • - SA671 Gr B70 CL 32 CS EFW Pipe
  • - ASME SA 671 CS Gr.B70 CL.12 EFW Pipes
  • - A671 Gr.B70 Class 12 Electric Fusion Welded Pipes Supplier
  • - ASTM A671 Gr B70 CL 22 EFW Welded Pipes Manufacturer
ASTM A671 Gr B70 / CC70 CL 12/22/32 EFW Pipes

ASTM A671 GR. CC70 EFW Pipes

  • - ASTM A671 Gr CC70 CL.12 EFW Pipes
  • - A671 Carbon Steel Gr.CC70 Class 22 EFW Pipes
  • - ASTM A671 Grade CC70 CL 32 Carbon Steel EFW Pipes
  • - ASME SA671 Grade CC70 Class 22 Carbon EFW Pipes
  • - SA671 Gr CC70 CL 32 CS EFW Pipe
  • - ASME SA 671 CS Gr.CC70 CL.12 EFW Pipes
  • - A671 Gr.CC70 Class 12 Electric Fusion Welded Pipes Supplier
  • - ASTM A671 Gr CC70 CL 22 EFW Welded Pipes

ASTM A671 Carbon Steel Gr B70, CC70 CL 12, 22, 32 EFW Pipes Chemical Composition

Grade C Si Mn P 0.31
CC70 0.27 0.13 - 0.45 0.79 - 1.30 0.035 0.035

Mechanical Properties of ASTM A671 Carbon Steel Grade B70 / CC70 CL 12, 22, 32 EFW Pipes

ASTM A671 Yield Point(N/mm2) Tensile Strength(N/mm2) Elongation(%) Welding Point Tensile Strength(N/mm2)
B70 / CC70 260 485 - 620 21 485 - 620

Application Industries

  • Refineries
  • Petrochemicals Industry
  • Oil & Gas Industry
  • Mining
  • Construction
  • Pharmaceuticals
  • Automobile