Stainless Steel 347 pipes are crafted using the basic austenitic alloy of type 304, adding columbium. This columbium enhances resistance to carbide precipitation and protects against intergranular corrosion. Unlike the 304 grade, the 347 alloy boasts better creep strength, rupture properties, and high-pressure bearing capacity. It also excels in extreme heat conditions and maintains excellent toughness and overall strength, even in cryogenic environments.
Chemically, the metal is primarily composed of chromium and molybdenum, with the addition of columbium for anti-corrosive properties and resistance to various types of corrosion. Mechanical properties are similar to the 304 grade, yielding 205 MPa and tensile strength of 515 MPa. These pipes are available in various thicknesses ranging from 0.4mm to 30mm and sizes from 1/8” to 48”, offered in welded and seamless designs, and available in round, rectangular, and square shapes.
Type 347 stainless steel pipes and tubes find extensive applications across various sectors, including power generation, heat exchangers, condensers, chemical, pharmaceutical, petrochemical, water supply systems, oil and gas refineries, pulp and paper, food processing, and more. Trust Stainless Steel 347 Pipes for reliable performance and durability in demanding industrial environments.
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Piyush Steel is a leading manufacturer and exporter of SS 347 Pipes & Tubes. Our products are crafted with the highest quality raw materials and adhere to international standards. Before delivery, all our products undergo rigorous testing and examination to ensure top-notch quality. We also offer customization options to meet customer specifications and instructions.
SS 347 Pipes Tubes come in various specifications, including tolerance, end, condition, types, forms, shape, size, thickness, length, width, standards, dimensions, grade, finish, surface, and applications. These pipes are available in different types, such as fabricated, seamless, ERW, EFW, and LSAW. Trust Piyush Steel for premium quality SS 347 Pipes & Tubes that meet industry standards and exceed customer expectations.
What Are the Main Differences between 347 and 316 Stainless Steel Pipes?
347 stainless steel pipe contains columbium and tantalum, which improves its intergranular corrosion resistance. This makes it more suitable for high temperature applications than 316 stainless steel pipe. 316 stainless steel pipe has a higher nickel content, which gives it better corrosion resistance in certain environments, such as marine or coastal environments. 347 stainless steel pipe has a higher carbon content than 316 stainless steel pipe, which can make it more susceptible to carbide precipitation and intergranular corrosion. The yield strength of 347 stainless steel pipes is also slightly lower than that of 316 stainless steel pipes.
What Is Uns S34700 Pipe?
UNS S34700 pipe is a type of stainless steel pipe made from an alloy of chromium, nickel, and columbium (niobium). The addition of columbium in the alloy helps to improve its intergranular corrosion resistance, making it more suitable for high temperature applications. UNS S34700 pipes are typically made by seamless and welded process. The pipe is heat treated to improve its mechanical properties and to make it suitable for high temperature service.
Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N | Other | |
347 | min. max |
0.08 | 2.00 | 0.75 | 0.045 | 0.030 | 17.0 19.0 |
- | 9.0 13.0 |
- | Nb=10(C+N) 1.0 |
Grade | Tensile Strength (MPa) min | Yield Strength 0.2% Proof (MPa) min | Elongation (% in 50mm) min | Hardness | |
Rockwell B (HR B) max | Brinell (HB) max | ||||
347 | 515 | 205 | 40 | 92 | 201 |
Grade | UNS No | Old British | Euronorm | Swedish SS | Japanese JIS | ||
BS | En | No | Name | ||||
347 | S34700 | 347S31 | 58G | 1.4550 | X6CrNiNb18-10 | 2338 | SUS 347 |
Stainless Steel 347 Pipe | Stainless Steel 347 Tubes |
AISI 347 Welded Pipe Supplier | ASTM A213 TP347 Stainless Steel Seamless Tubes |
AISI Kobe TP347 ERW Pipes | ASTM A249 TP 347 Stainless Steel Welded Tubes |
Stainless Steel UNS S34700 Pipe | AISI 347 Schoeller Bleckmann Seamless Tube |
Stainless Steel TP347 Seamless Pipes | SS TP347 Sanyo Special tubes |
Stainless Steel TP347 Welded Pipe | Stainless Steel 347 Seamless Tubing |
AISI 347 Seamless Pipes Dealer | ASTM A269 TP 347 Stainless Steel Seamless Tubes |
Nippon Steel Make SS TP 347 Pipes | Salzgitter Mannesmann AISI 347 welded Tube |
Stainless Steel 347 Tube | UNS S34700 Tube |
DIN 1.4550 Tube | Inox 347 Tube |
UNS S34700 Pipe | DIN 1.4550 Pipe |
SUS 347 Pipe | Inox 347 Pipe |
Stainless Steel DIN 1.4550 Pipes Manufacturer | ASTM A358 TP 347 Stainless Steel EFW Pipes |
ASTM A312 TP 347 Stainless Steel Seamless Pipes | ASTM A312 TP 347 Stainless Steel Welded Pipes |
Stainless Steel TP347 Rectangular Tubes | TP 347 SS Capillary Tubing Stockholder |
Stainless Steel TP 347 Rectangular Pipes | ASME SA312 SS TP 347 Square Pipes Stockist |
ASME SA312 SS TP 347 ERW Pipes Exporter | TP 347 Stainless Steel Square Tubing Distributor |
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Nippon Steel Make 347 Pipes & Tubes
Sandvik Make SS 347 Pipes & Tubes
Sanyo Special Steel Make 347 Pipes & Tubes
Kobe Steel Make 347 Pipes & Tubes
Schoeller Bleckmann Make 347 Pipes & Tubes
Salzgitter Mannesmann Stainless Make 347 Tubes
Tubacex Steel Make SS TP347 Tubes
Piyush Steel has been a prominent player in the tubular metal products industry since 1983. We are one of the largest exporters of stainless steel in India.
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