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JIANGSU MITTEL STEEL INDUSTRIAL LIMITED

  • China,Wuxi ,Jiangsu
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China ASTM EN TP347 Stainless Steel Seamless Pipe 6m Length S34700
China ASTM EN TP347 Stainless Steel Seamless Pipe 6m Length S34700

  1. China ASTM EN TP347 Stainless Steel Seamless Pipe 6m Length S34700
  2. China ASTM EN TP347 Stainless Steel Seamless Pipe 6m Length S34700
  3. China ASTM EN TP347 Stainless Steel Seamless Pipe 6m Length S34700
  4. China ASTM EN TP347 Stainless Steel Seamless Pipe 6m Length S34700

ASTM EN TP347 Stainless Steel Seamless Pipe 6m Length S34700

  1. MOQ: 500 kgs
  2. Price: 5-8 USD/Kg
  3. Get Latest Price
Payment Terms L/C,T/T,Western Union
Supply Ability 3 Ton per week
Delivery Time 5 - 12 days based on the quantity
Packaging Details standard packing for export
Products Stainless Steel Seamless Pipe
Grade 347
Diameter DN10 - DN400
Length 6m or custom cutting any length as request
Standard ASTM EN
Service Cutting
Loading Port Shanghai Port
Thickness 4.0 - 50.0mm
Brand Name DELTA
Model Number 347
Certification ISO
Place of Origin China

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  1. Product Details
  2. Company Details

Product Specification

Payment Terms L/C,T/T,Western Union Supply Ability 3 Ton per week
Delivery Time 5 - 12 days based on the quantity Packaging Details standard packing for export
Products Stainless Steel Seamless Pipe Grade 347
Diameter DN10 - DN400 Length 6m or custom cutting any length as request
Standard ASTM EN Service Cutting
Loading Port Shanghai Port Thickness 4.0 - 50.0mm
Brand Name DELTA Model Number 347
Certification ISO Place of Origin China
High Light ASTM EN TP347 stainless steel pipeS34700 seamless steel pipe6m length stainless steel pipe

TP347 Stainless Steel Seamless Pipe Tube in 6m Length SS Pipe Alloy S34700

 

Products Specification

 

Products Name 347 Stainless Steel Seamless Pipe

Grade:
304 304L 309S 310S 314 316L 316Ti 321 329 347H 410 2205 2507 S32760 904L 254SMO and equal grade in GB JIS EN DIN Standard
Standards: ASTM A213M-94b ASTM A249M-94a ASTM A269-94a
ASTM A312M-94b,ect.
DIN 17456-85 DIN 17458-85 DIN 17459-92.ect
JIS G3446-1994 JIS G3448-1997 JIS G3459-1997 JIS G3463-1994,ect.
GB13296-1991 GB14975-2002 GB14976-2002,ect.
Size: ND5 - DN400
Length: 6m length or cutting any length as request
Applications: fluid and gas transport, structure , boiler, heat exchanger, super heater

 

347H stainless steel pipe is a high-performance alloy known for its excellent corrosion resistance and high-temperature strength, making it a go-to choice in demanding industrial environments. Its unique composition, particularly the addition of niobium, sets it apart, ensuring stability even under extreme conditions.
 
347H Stainless Steel Pipe: Key Characteristics

347H is an austenitic stainless steel, part of the 300 series, with a chemical composition that includes chromium (17-19%), nickel (9-13%), and niobium (columbium, 5x the carbon content minimum) as key alloying elements. This combination grants it superior resistance to intergranular corrosion, especially after exposure to high temperatures, which is critical in applications like boilers and heat exchangers. The "H" designation indicates a higher carbon content (0.04-0.10%), enhancing its strength at elevated temperatures compared to standard 347.
 
Typical Applications
Thanks to its ability to withstand temperatures up to 1500°F (816°C) and resist oxidation and carbide precipitation, 347H pipe is widely used in:
 
  • Power generation (boiler tubes, superheaters)
  • Chemical processing (reactors, pipelines handling corrosive fluids)
  • Petrochemical industry (refinery equipment)
  • High-temperature exhaust systems
 
Mechanical Properties
 
Property Value
Tensile Strength 75,000 psi (min)
Yield Strength 30,000 psi (min)
Elongation 40% (min in 2")
Hardness 95 HRB (max)
 
Advantages Over Similar Alloys
Compared to 304 or 316 stainless steel, 347H offers better high-temperature stability and reduced risk of sensitization (carbide formation at grain boundaries), which is crucial for welded components in corrosive environments. It outperforms 321 in higher temperature ranges, making it a preferred choice for extreme heat applications.

 

 

Company Details

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 from Quality China Factory
  • Business Type:

    Manufacturer,Distributor/Wholesaler,Exporter

  • Total Annual:

    >1000000

  • Employee Number:

    >100

  • Ecer Certification:

    Verified Supplier

Our company is located in Wuxi City, China, we are a stainless steel plate, seamless steel pipe, round steel, steel belt, decorative pipe and other products distribution wholesale private enterprise. Our company operates stainless steel plate, seamless steel pipe, round steel, steel belt, decorative... Our company is located in Wuxi City, China, we are a stainless steel plate, seamless steel pipe, round steel, steel belt, decorative pipe and other products distribution wholesale private enterprise. Our company operates stainless steel plate, seamless steel pipe, round steel, steel belt, decorative...

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  • JIANGSU MITTEL STEEL INDUSTRIAL LIMITED
  • No.283-1, Youyi Middle Road, Xishan District, Wuxi City, Jiangsu Province
  • https://www.stainless-strips.com/

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