YUHONG GROUP CO.,LIMITED

Home > Recommended
Product Categories
Online Service

Factory Supplier for for 304 Stainless Steel Boiler Tube Stainless Steel Seamless Tube A213 TP347/347H , A312 TP347H, A269 TP347H supply to Palau Exporter

  • Product Detail
  • Product Tags
  • Buyer Reviews

We keep on with our enterprise spirit of "Quality, Efficiency, Innovation and Integrity". We intention to create extra worth for our buyers with our prosperous resources, superior machinery, experienced workers and superb services for A213 TP347/347H Seamless Tube,A269 TP347H Seamless Tube,SA213 TP347 Boiler Tube. We always regard the technology and prospects as the uppermost. We always function hard to make terrific values for our prospects and give our customers far better products and solutions & solutions.

Factory Supplier for for 304 Stainless Steel Boiler Tube Stainless Steel Seamless Tube A213 TP347/347H , A312 TP347H, A269 TP347H supply to Palau Exporter

Detailed Product Description

stainless steel seamless tube A213 TP347/347H , A312 TP347H, A269 TP347H, Pickled and Annealed , Plain End Ply-Wooden



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
stainless steel seamless tube A213 TP347/347H , A312 TP347H, A269 TP347H, Pickled and Annealed , Plain End  Ply-Wooden


Typical Uses

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

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


stainless steel seamless tube A213 TP347/347H , A312 TP347H, A269 TP347H, Pickled and Annealed , Plain End  Ply-Wooden

"Our organization promises all customers with the first-class products and solutions and the most satisfying post-sale service. We warmly welcome our regular and new clients to join us for Stainless Steel Seamless Tube A213 TP347/347H , A312 TP347H, A269 TP347H. The product will supply to all over the world, such as: Virgin Islands (U.S.),Lithuania,Turkmenistan. To create more creative goods maintain high-quality products and solutions and update not only our goods but ourselves so as to keep us ahead of the world and the last but most vital one: to make every client satisfied with everything we offer you and to grow stronger together. To be the real winner starts here!

Email To This Supplier

Your message must be between 20-8000 characters

YOU MAY LIKE
  • LSB12 Ningbo Lingshang 100% polyester cheap skull design multifunctional wholesale muslim seamless tube headwear

    Specifications seamless tube headwear 1 Size 24cmx50cm 2 Material 100 polyester microfibre 4 MOQ 10pcs 300PCS Sports Multi Headwear Discount Express Shippment Provide LSB12 Ningbo Lingshang 100 polyester cheap skull design multifunctional wholesale muslim seamless tube

    Ask PriceClick for details

  • Seamless tube scarf, Hair Bandana /Multifunctional Seamless Tube Bandana !LSB182

    2013 fashion Multi Functional Printing Seamless Tube Bandana with lowest price bandana scarf bandana Neck tube scarf customized bandana Beautiful Stock Design NECK TUBE Outdoor Seamless Tube Bandana Best Discount Express Shippment

    Ask PriceClick for details

  • custom magic multifunctional seamless tube bandana

    Specifications 1 multifunctional band 2 material 100 polyester 3 very stretchable and flexible 4 one size fits most 5 different usage Product Description 1 Multifunstional band Magic band2 Material 100 polyester 3 Very stretchable and flexible4 Suitable for sport and daily usage 5 One size fits all 6 Logo transfer printing 7 High quality with competitive prices 8 Customers artworks are welcomed Usage a foulard b

    Ask PriceClick for details

  • High Quality Hot Sale Titanium Seamless Tube

    Model NO Titanium Seamless Tube Application Industrial Grade

    Ask PriceClick for details

  • High Quality Hot Sale Titanium Seamless Tube

    Model NO Titanium Seamless Tube Application Industrial Grade

    Ask PriceClick for details

  • A213 Stainless Steel Seamless Boiler Tube

    Model NO A213 stainless steel seamless boiler tube Technique Cold Drawn Usage

    Ask PriceClick for details