YUHONG GROUP CO.,LIMITED

86-574-88013900

Home > Recommended
Product Categories
Online Service

Factory source manufacturing for Stainless Steel Pipe ASTM A312 TP347H 6" SCH40 supply to Bahamas Exporter

  • Product Detail
  • Product Tags
  • Buyer Reviews

It adheres for the tenet "Honest, industrious, enterprising, innovative" to develop new products and solutions continuously. It regards shoppers, success as its individual success. Let us produce prosperous future hand in hand for ASTM A312 TP347H Stainless Steel Pipe,ASTM A213 TP347H Seamless Tube,Seamless Pipe SUS347H For High Temperature. keep improving. We are looking forward that more and more oversea friends join in our family for further development near the future!

Factory source manufacturing for  Stainless Steel Pipe ASTM A312 TP347H 6" SCH40 supply to Bahamas Exporter


Stainless Steel Seamless Pipe ASTM A312 TP347/347H , A213 TP347H, A269 TP347H, Pickled and Annealed, Plain/Beveled End, 6" SCH40


347 Stainless Steel Pipes and Tubes
347 Stainless Steel is variant of the basic austenitic 18/8 Grade 304 with added Columbium - the introduction of Columbium stabilizes the steel and eliminates carbide precipitation which subsequently causes intergranular corrosion.
The steel has excellent forming and welding qualities and excellent toughness even at cryogenic temperatures.

Benefits of 347 Stainless Steel

  • Higher creep stress and rupture properties when compared with 304
  • Ideal for high temperature service
  • Overcomes sensitization and intergranular corrosion concerns
  • Can be used in elevated temperature applications for ASME Boiler and Pressure Vessel Code applications
  • Due to stabilisation the material offers better overall corrosion resistance when compared to 304/304L
  • Excellent mechanical properties
  • A high carbon version (347H) is also available


Typical Uses

  • Heat exchangers
  • High temperature steam service
  • High temperature chemical process

Both 347/347H are used primarily in elevated temperature applications.

ASTM A312 TP347H Stainless Steel Seamless Pipe


Product Range
Specifications: ASTM A/ASME SA213/A249/A269/A312/A358 CL. I to V ASTM A789/A790
Sizes (Seamless): 1/2" NB - 24" NB
Sizes (ERW): 1/2" NB - 24" NB
Sizes (EFW): 6" NB - 100" NB
Wall Thickness available:
Schedule 5S - Schedule XXS (heavier on request)
Other Materials Testing:
NACE MR0175, H2 SERVICE, OXYGEN SERVICE, CRYO SERVICE, etc.


Dimensions:
All Pipes is manufactured and inspected/tested to the relevant standards including ASTM, ASME and API etc.
General Properties of 347 Stainless Steel Pipes and Tubes
Alloys 321 (S32100) and 347 (S34700) are stabilized stainless steels which offer as their main advantage an excellent resistance to intergranular corrosion following exposure to temperatures in the chromium carbide precipitation range from 800 to 15000F (427 to 8160C). Alloy 321 is stabilized against chromium carbide formation by the addition of titanium. Alloy 347 is stabilized by the addition of columbium and tantalum.
While Alloys 321 and 347 continue to be employed for prolonged service in the 800 to 15000F (427 to 8160C) temperature range, Alloy 304L has supplanted these stabilized grades for applications involving only welding or short time heating.
Alloys 321 and 347 stainless steels are also advantageous for high temperature service because of their good mechanical properties. Alloys 321 and 347 stainless steels offer higher creep and stress rupture properties than Alloy 304 and, particularly, Alloy 304L, which might also be considered for exposures where sensitization and intergranular corrosion are concerns. This results in higher elevated temperature allowable stresses for these stabilized alloys for ASME Boiler and Pressure Vessel Code applications. The 321 and 347 alloys have maximum use temperatures of 15000F (8160C) for code applications like Alloy 304, whereas Alloy 304L is limited to 8000F (4260C).
High carbon versions of both alloys are available. These grades have UNS designations S32109 and S34709.


Chemical Composition of 347 Stainless Steel Pipes and Tubes
Represented by ASTM A240 and ASME SA-240 specifications.

Element 347
Carbon* 0.08
Manganese 2.00
Phosphorus 0.045
Sulfur 0.03
Silicon 0.75
Chromium 17.00-19.00
Nickel 9.00-13.00
Columbium +
Tantalum**
10xC min to 1.00 max
Tantalum --
Titanium** --
Cobalt --
Nitrogen --
Iron Balance 


Resistance to Corrosion of 347 Stainless Steel Pipes and Tubes
General Corrosion
Alloys 321 and 347 offer similar resistance to general, overall corrosion as the unstabilized chromium nickels Alloy 304. Heating for long periods of time in the chromium carbide precipitation range may affect the general resistance of Alloys 321 and 347 in severe corrosive media.
In most environments, both alloys will show similar corrosion resistance; however, Alloy 321 in the annealed condition is somewhat less resistant to general corrosion in strongly oxidizing environments than annealed Alloy 347. For this reason, Alloy 347 is preferable for aqueous and other low temperature environments. Exposure in the 8000F to 15000F (4270C to 8160C) temperature range lowers the overall corrosion resistance of Alloy 321 to a much greater extent than Alloy 347. Alloy 347 is used primarily in high temperature applications where high resistance to sensitization is essential, thereby preventing intergranular corrosion at lower temperatures.
Physical Properties of 347 Stainless Steel Pipes and Tubes
The physical properties of Types 321 and 347 are quite similar and, for all practical purposes, may be considered to be the same. The values given in the table may be used to apply to both steels.
When properly annealed, the Alloys 321 and 347 stainless steels consist principally of austenite and carbides of titanium or columbium. Small amounts of ferrite may or may not be present in the microstructure. Small amounts of sigma phase may form during long time exposure in the 10000F to 15000F (5930C to 8160C) temperature range.
The stabilized Alloys 321 and 347 stainless steels are not hardenable by heat treatment.
The overall heat transfer coefficient of metals is determined by factors in addition to thermal conductivity of the metal. In most cases, film coefficients, scaling, and surface conditions are such that not more than 10 to 15% more surface area is required for stainless steels than for other metals having higher thermal conductivity. The ability of stainless steels to maintain clean surfaces often allows better heat transfer than other metals having higher thermal conductivity.
Mechanical Properties of 347 Stainless Steel Pipes and Tubes
Room Temperature Tensile Properties
Minimum mechanical properties of the stabilized Alloys 321 and 347 chromium-nickel grades in the annealed condition (20000F [10930C], air cooled) are shown in the table.
Elevated Temperature Tensile Properties
Typical elevated temperature mechanical properties for Alloys 321 and 347 sheet / strip are shown below. Strength of these stabilized alloys is distinctly higher than that of non-stabilized 304 alloys at temperatures of 10000F (5380C) and above.
High carbon Alloys 321H and 347H (UNS32109 and S34700, respectively) have higher strength at temperatures above 10000F (5370C). ASME maximum allowable design stress data for Alloy 347H reflects the higher strength of this grade in comparison to the lower carbon Alloy 347 grade. The Alloy 321H is not permitted for Section VIII applications and is limited to 8000F (4270C) use temperatures for Section III code applications.
Heat Treatment of 347 Stainless Steel Pipes and Tubes
The annealing temperature range for Alloys 321 and 347 is 1800 to 20000F (928 to 10930C). While the primary purpose of annealing is to obtain softness and high ductility, these steels may also be stress relief annealed within the carbide precipitation range 800 to 15000F (427 to 8160C), without any danger of subsequent intergranular corrosion. Relieving strains by annealing for only a few hours in the 800 to 15000F (427 to 8160C) range will not cause any noticeable lowering in the general corrosion resistance, although prolonged heating within this range does tend to lower the general corrosion resistance to some extent. As emphasized, however, annealing in the 800 to 15000F (427 to 8160C) temperature range does not result in a susceptibility to intergranular attack.For maximum ductility, the higher annealing range of 1800 to 20000F (928 to 10930C) is recommended.


Astm A213 Tp347h Stainless Steel Seamless TubeStainless Steel Seamless Pipe Astm A312 Tp347347h A213 Tp347h A269 Tp347h

Gaining customer satisfaction is our company's aim forever. We will make great efforts to develop new and top-quality products, meet your special requirements and provide you with pre-sale, on-sale and after-sale services for Stainless Steel Pipe ASTM A312 TP347H 6" SCH40. The product will supply to all over the world, such as: Yemen,Portugal,Nepal. Our items are widely recognized and trusted by users and can meet continuously changing economic and social needs. We welcome new and old customers from all walks of life to contact us for future business relationships and mutual success!

Email To This Supplier

Your message must be between 20-8000 characters

YOU MAY LIKE
  • astm a312 tp347h stainless steel pipe factory

    astm a312 tp347h stainless steel pipe factory Product Description ASTM A312 TP347H Stainless Steel Seamless Pipes Manufacturer Supplier An ISO 9001 2008 certified company NINGBO HONG STEEL CO LTD take immensure pleasure in introducing itself as one of the leading manufacturer stockiest exporter of high quality ASTM A312 TP347H Stainless Steel Seamless Pipes Its available with HONGSTEEL in various materials such as Stainless steel Pipes Tubes Nickel Tubing Monel Tubing Inconel 600 tubing Inconel...

    Ask PriceClick for details

  • Best astm a312 tp347h stainless steel pipe

    astm a312 tp347h stainless steel pipe What is festures of our astm a312 tp347h stainless steel pipe Weldability Good corrosion resistance Polished performance Excellent chemical resistance Good alkali metal and acid can Toughness Retardant What is Specifications of our astm a312 tp347h stainless steel pipe OD 10mm 1000mm WT 1mm 200mm SCH40 XXS or others Payment T T OR L C Standard GB T14976 94 GB T14975 2002 GB T14976 2002 GB13296 91 GB3090 82 GB3087 2008 ASTM A269 ASTM A312 ASTM A450 ASTM A789...

    Ask PriceClick for details

  • ASTM A312 seamless stainless steel pipe

    Product Description Product name Seamless Stainless steel pipeStandard ASTM A312 ASTM A554 ASTM A790 EN10216 5 EN10217 7 JIS G3468 JIS G3459Material 304 316L 321 310S 1 4301 1 4307 1 4404 S31803 S32750 904L Monel 400 Inconel 800 Surface Pickling 400grit polishing 600grit polishing etcCertificate DNV BV LR GL NK RMRSPacking In bundles with waterproof material in wooden casesShipment By sea by air by

    Ask PriceClick for details

  • astm a312 tp347h stainless steel pipe China supplier

    Specifications astm a312 tp347h stainless steel pipe China supplier Product Description Production

    Ask PriceClick for details

  • ASTM A312 Tp316Ti Stainless Steel Pipe

    Specifications Tp316Ti Stainless Steel Pipe 1 Material 316Ti 2 Standard ASTM A213 A312 A511 3 Surface polished brushed 2b Product Description Definition Of Stainless Steel In metallurgy stainless steel also known as inox steel or inox from French inoxydable is defined as a steel alloy with a minimum of 10 5 to 11 chromium content by mass Stainless steel does not readily corrode rust or stain with water as ordinary steel does but despite the

    Ask PriceClick for details

  • ASTM A312 Tp347h Stainless Steel Pipe

    Model NO ASTM A312 Stainless Steel Pipe Technique ERW Surface Treatment

    Ask PriceClick for details