347H stainless steel pipe for oil industry

Unlike the duplex 2205 pipe, 347H stainless steel pipe is a high carbon austenitic stainless steel pipe, with an excellent heat-resistance material which is applied to boiler, heat exchanger, car and aircraft exhaust, chemical equipment etc. As a higher grade from AISI 321H, the intergranular corrosion of 347H is achieved through the use of niobium (Nb) as a stabilizing element to maximize this feature.  SS 347 has a good mechanical properties welding performance, excellent resistance to intergranular corrosion .

Kaysuns provide dual grade of 347/347H stainless steel pipe and fittings with the exellent quality and fast delivery. Our stainless steel piping can be inspected by third party inspection, classication of DNV, BV, ABS, KR etc. are available for welded pipes.

Available Manfaucturing Standard

ASTM A312, ASTM A269, ASTM A213, ASTM A249, ASTM A358, EN10216-5, EN10217-7, DIN 17456, DIN 17455, GOST 9941, JIS G3459, JIS G3463 etc.、

Manufacturing and Supplying Capacity:

Product: Stainless Steel Pipes and tubes Grade 347, 347H, 1.4550
Dimension: 1/2” ~ 24” for smls, 6” ~ 104” for EFW pipe
Schedule: SCH10S, SCH20, SCH30, SCH40, STD, SCH80, XS, SCH60, SCH80, SCH120, SCH140, SCH160, XXS
Type: Seamless / Welded
Manfaucturing Craft: Cold Drawn,Cold Rolled (ERW/EFW for welded)
Pipe End: Plain End, Beveled End, Treaded
Delivery Condtions: Solution Annealing, Bright Annealing


  • Excellent resistance for high temperature
  • Similar resistance and corrosion protection as Alloy 321
  • Used for heavy welded equipment when annealing is not possible
  • Good oxidation resistance, on par with most other austenitic stainless steels
  • Higher carbon allows for better high temperature creep properties


New service from OilVoice
Trip Shepherd is for companies who need to track their staff in areas of risk.
It's free to use, so we invite you to try it.

Visit source site

347H pipe347 STAINLESS STEEL PIPEstainless steel pipe

More items from cnwellgreen

Russian Norilsk Nickel Group Has Another Fuel Leak

This Is The Second Fuel Leak In Norilsk Nickel Group This Year The Russian Norilsk Nickel reported that the Norilsktransgaz pipeline belonging to the Norilsk Nickel Group has fuel leak during the aviation fuel transfer near the village of Tukhard on the Gydanskii tundra. The company said i ...

roger chen - kaysuns industry limited

Posted 1 day agoPress > norilskfuelleakRussia +1

What Is Surface Roughness? Is It Necessary In The Petroleum Industry?

Surface roughness is very important for most surfaces involved in sliding contact. This is because factors such as the original rate of wear and sustained nature are highly dependent on this characteristic. These surfaces are generally load-bearing surfaces, and the roughness needs to be marked to ...

roger chen - kaysuns industry limited

Posted 8 days agoPress > Surface Roughness

What Is TP347H? Can It Be Used in Oil Industry?

Introduction of TP347H (1Cr19Ni11Nb) stainless steel pipe As a stainless steel pipe fittings supplier , today kaysuns will share the introduction of what is TP347H (1Cr19Ni11Nb) stainless steel pipes . TP347H (1Cr19Ni11Nb) is a high-carbon niobium-containing Cr-Ni austenitic stai ...

roger chen - kaysuns industry limited

Posted 14 days agoPress > tp347h347 STAINLESS STEEL PIPE

Application of Super Austenitic Stainless Steel in Wet Flue Gas Desulfurization Process System

Super Austenitic Stainless Steel is currently the most suitable material for wet flue gas desulfurization process This process is also the most commonly used with super austenitic stainless steel in the world today. Of the many desulfurization technologies, it accounts for 80% of the total ins ...

roger chen - kaysuns industry limited

Posted 22 days agoPress > Super Austenitic Stainless Steelwet flue gas desulfurization process

The Demand For Stainless Steel Welded Pipes In The Chinese Market Will Decline In The Near Future

Heavy rainfall will lead to a gradual decline in the demand of stainless steel welded pipes due to resumption of work Recently, the south suffered the heaviest rainfall since flooding. The continuous torrential rain has broken the record, and more than 2.6 million people have been affected, and it ...

roger chen - kaysuns industry limited

Posted 28 days agoPress > stainless steel welded pipesChinese Market
All posts from cnwellgreen