ASTM A672 GR.B70 / C70 CL.12 / 22 / 32 EFW Pipes

ASTM A672 GR.B70 EFW Pipe is a high-strength, low-alloy steel pipe, and it is widely used in various industrial applications. It meets the American Society for Testing and Materials (ASTM) standards and is known for its exceptional durability and resistance to corrosion. ASTM A672 GR.B70 CL.12 EFW Pipe is available in different forms, such as ERW (Electric Resistance Welded), LSAW (Longitudinal Submerged Arc Welded), and DSAW (Double Submerged Arc Welded). Each form has its unique characteristics and use. ERW pipes are used for low-pressure applications, while LSAW and DSAW pipes have a higher load-bearing capacity and are used in high-pressure applications.

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STM A672 GR.B70 CL.22 EFW PipeA is commonly used in the oil and gas industry, chemical plants, and power generation plants. It is used to convey fluids and gasses under high pressure and temperatures. This pipe grade is also suitable for transporting corrosive and abrasive mediums. ASTM A672 GR.B70 CL.32 EFW Pipe has a high yield and tensile strength, making it suitable for high-pressure applications. This grade of pipe also has excellent corrosion resistance and can withstand harsh environmental conditions. It is widely used in constructing pipelines, refineries, and power plants.

These include the required wall thickness, corrosion resistance, mechanical properties, and the operating temperature and pressure. It is essential to consult a professional to determine the appropriate pipe specifications. Proper maintenance of ASTM A672 GR.B70 EFW Pipe ensures its longevity and performance. Regular inspections, cleaning, and coating can help prevent corrosion and damage. Following the manufacturer's recommended maintenance procedures and guidelines is also essential.

ASTM A672 GR.B70 EFW Pipe is a strong and reliable pipe grade that offers exceptional durability and resistance to harsh conditions. Its versatile applications make it a popular choice for various industries. When choosing the right grade and form of ASTM A672 GR.B70 EFW Pipe, it is essential to consider the required specifications and maintenance requirements.


The pressure rating of ASTM A672 GR.B70 CL.12 EFW Pipe depends on the size, wall thickness & temperature of the pipe. Generally, these pipes have a pressure rating of 2500 psi to 5000 psi.

ASTM A672 GR.B70 Class 22 and Class 12 EFW Pipes differ in their minimum yield strength and chemical composition. Class 22 pipes have a minimum yield strength of 65 ksi, while Class 12 pipes have a minimum yield strength of 50 ksi. Additionally, Class 22 pipes have a slightly different chemical composition with a higher amount of nickel and molybdenum.

ASTM A672 GR.B70 Class 32 EFW Pipe is commonly used in high-pressure and high-temperature applications in the petrochemical & power generation industries.

Specification of ASTM A672 Grade B70 / C70 Class 12/22/32 Carbon Steel EFW Pipes

Spec bag
Seamless EFW Pipe
Specifications : ASTM A672 / ASME SA672
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 A672 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 A672 Grade B70 / C70 CL 12/22/32 CS EFW Pipes

ASTM A672 Gr B70 /  C70 CL 12/22/32 EFW Pipes

ASTM A672 Gr B70 EFW Pipes

  • - ASTM A672 Gr B70 CL.12 EFW Pipes
  • - A672 Carbon Steel Gr.B70 Class 22 EFW Pipes
  • - ASTM A672 Grade B70 CL 32 Carbon Steel EFW Pipes
  • - ASME SA672 Grade B70 Class 22 Carbon EFW Pipes
  • - SA672 Gr B70 CL 32 CS EFW Pipe
  • - ASME SA 672 CS Gr.B70 CL.12 EFW Pipes
  • - A672 Gr.B70 Class 12 Electric Fusion Welded Pipes Supplier
  • - ASTM A672 Gr B70 CL 22 EFW Welded Pipes Manufacturer
ASTM A672 Gr B70 /  C70 CL 12/22/32 EFW Pipes

ASTM A672 Gr C70 EFW Pipes

  • - ASTM A672 Gr C70 CL.12 EFW Pipes
  • - A672 Carbon Steel Gr. C70 Class 22 EFW Pipes
  • - ASTM A672 Grade C70 CL 32 Carbon Steel EFW Pipes
  • - ASME SA672 Grade C70 Class 22 Carbon EFW Pipes
  • - SA672 Gr C70 CL 32 CS EFW Pipe
  • - ASME SA 672 CS Gr. C70 CL.12 EFW Pipes
  • - A672 Gr. C70 Class 12 Electric Fusion Welded Pipes Supplier
  • - ASTM A672 Gr C70 CL 22 EFW Welded Pipes

ASTM A672 Carbon Steel Gr B70, C70 CL 12, 22, 32 EFW Pipes Chemical Composition

Grade C Si Mn P S
C70 0.27 0.13 - 0.45 0.79 - 1.30 0.035 0.035

Mechanical Properties of ASTM A672 Carbon Steel Grade B70 / C70 CL 12, 22, 32 EFW Pipes

ASTM A672 Yield Point(N/mm2) Tensile Strength(N/mm2) Elongation(%) Welding Point Tensile Strength(N/mm2)
Steel Grade C70 260 485 - 620 21 485 - 620

Application Industries

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