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ASTM A358 Stainless Steel TP347 / 347H CL.1 EFW Pipes

ASTM A 358 GR. TP 347 EFW welded pipe is a type of stainless steel pipe known for its high resistance to corrosion and high temperature. It is commonly used in petrochemical, gas, oil, and chemical refineries due to its durability and strength. ASTM A 358 GR. TP 347 EFW Welded Pipe comes in various types. One type is the ASTM A 358 GR. TP 347L EFW welded pipe. This type is composed of a lower carbon content material than TP 347. Its composition includes 0.03% carbon, 18% chromium, and 10% nickel. It is ideal for use in environments with high temperatures and stresses. It is known for its exceptional corrosion resistance and strength.
Another type is the ASTM A 358 GR. TP 347H EFW Welded Pipe. It has a higher amount of carbon, normally between 0.04%-0.1%. Its composition includes 18% chromium, 10% nickel, and 0.75% molybdenum. This type of pipe can be hardened through heat treatment, improving its strength and wear resistance. It is often used in industries that require high-temperature stability and low-temperature toughness.

SS 347H CL.1 EFW Pipes, Stainless Steel S34700 EFW Pipes, SUS 347 CL 1 EFW Pipes, Stainless Steel TP347H CL.1 EFW Pipes Exporter, Stainless Steel TP347 Class 1 EFW Pipes, Stainless Steel 347 / 347H CL.1 EFW Pipes, ASTM A358 347 Class 1 SS EFW Pipes, Stainless Steel 1.4961 EFW Pipes, ASME SA358 Stainless Steel TP347, Asme Sa358 Grade 347 Efw Pipes, 347H CL 1 EFW Pipes Leading Manufacturers in Mumbai, India.

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The 347H CL.1 EFW Welded Pipe has various uses and applications across different industries. One of its primary applications is in the petrochemical industry, which is used to transport petrochemical products such as crude oil and natural gas. It is also commonly used in the oil and gas industry due to its high temperature and high-pressure resistance. Additionally, it is used for heat exchangers, boilers, and other high-temperature equipment.

There are several benefits associated with using ASTM A 358 GR. TP 347 EFW welded pipe. One of the benefits is its high-temperature resistance which makes it ideal for use in high-temperature environments. It also has excellent corrosion resistance, which helps to protect it from degradation caused by corrosive substances. Another benefit is its strength and durability, making it a reliable option for transporting fluids under high pressure.

ASTM A 358 GR. TP 347 EFW welded pipe is easy to fabricate, weld, and install. It is also cost-effective and readily available. Its durability and high corrosion resistance can help extend the pipe's lifespan, thereby reducing maintenance and replacement costs. Furthermore, this type of pipe has a smooth surface finish that helps to minimize frictional losses and improve fluid flow.

ASTM A 358 GR. TP 347 EFW welded pipe is an excellent option for industries that require high-temperature and high-pressure resistance and excellent corrosion resistance. Its various types provide different options for different application needs. Its benefits include ease of fabrication and installation, affordability, durability, and high corrosion resistance.


The minimum tensile strength of TP347 CL.1 EFW Pipes is 75 ksi (515 MPa) and the minimum yield strength is 30 ksi (205 MPa).

ASTM A358 TP347 CL.1 EFW pipes are made of stabilized austenitic stainless steel grade 347 with a maximum carbon content of 0.08%. ASTM A358 TP347H CL.1 EFW pipes are made of the same grade with a higher carbon content of 0.04-0.10% for improved high-temperature strength.

The size range of TP347 CL.1 and TP347H CL.1 EFW pipes is from 8 inches (203.2 mm) to 120 inches (3048 mm) in outer diameter (OD), with wall thickness ranging from 0.165 inches (4.19 mm) to 0.875 inches (22.23 mm).

Specification of Stainless Steel TP347, 347H Class 1 EFW Pipes

Spec bag
Specifications: ASTM A358 / ASME SA358
Dimension Standard : ANSI B36.19M, ANSI B36.10
EFW Pipe Range : 6" NB - 48" NB
Type : EFW Pipes
Form : Round Pipes, Square Pipes, Rectangular Pipe
Types : Round, Square, Rectangle, Coil, "U" Shape, Hydraulic & Honed Pipes

Types of Stainless Steel TP 347, 347H CL 1 EFW Pipes

Stainless Steel TP347, 347H CL.1 EFW Pipes

ASTM A358 TP 347 / 347H CL.1 EFW Pipes

  • - ASTM A358 SS TP347 CL 1 EFW Pipes
  • - 1.4961 / 1.4550 EFW Pipes
  • - S34700 / S34709 EFW Pipes
  • - TP347H Class 1 SS EFW Pipe
  • - ASME SA358 SS 347 CL 1 EFW Pipes
  • - Stainless Steel TP347H Class 1 EFW Pipes Supplier
  • - SS TP347 CL.1 EFW Welded Pipes Manufacturer
SS TP347, 347H CL.1 Electric Fusion Welded Pipes

SS 347 / 347H Electric Fusion Welded Pipes

  • - ASTM A358 SS TP347 / 347L CL 1 EFW Welded Pipes
  • - 1.4961 / 1.4550 Electric Fusion Welded Pipes
  • - S34700 / S34709 Electric Fusion Welded Pipes
  • - TP347H Class 1 SS Electric Fusion Welded Pipe
  • - SA358 SS 347 CL 1 Electric Fusion Welded Pipes
  • - ss 347H Class 1 EFW Welded Pipes Supplier
  • - SS TP347 CL.1 EFW Welded Pipes

Equivalent Grades for Stainless Steel TP347 / 347H Class 1 EFW Pipes

STANDARD WERKSTOFF NR. UNS JIS GOST EN
SS 347 1.4550 S34700 SUS 347 08Ch18N12B X6CrNiNb18-10
SS 347H 1.4961 S34709 SUS 347H - X6CrNiNb18-12

Stainless Steel 347, 347H Class 1 EFW Pipes Chemical Composition

Grade C Mn Si P S Cr Cb Ni Fe
SS 347 0.08 max 2.0 max 1.0 max 0.045 max 0.030 max 17.00 - 20.00 10xC – 1.10 9.00 - 13.00 62.74 min
SS 347H 0.04 – 0.10 2.0 max 1.0 max 0.045 max 0.030 max 17.00 - 19.00 8xC – 1.10 9.0 -13.0 63.72 min

Mechanical Properties of Stainless Steel TP347 / 347H Class 1 EFW Pipes

Density Melting Point Tensile Strength Yield Strength (0.2%Offset) Elongation/td>
8.0 g/cm3 1454 °C (2650 °F) Psi – 75000 , MPa – 515 Psi – 30000 , MPa – 205 35 %

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Application Industries

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