HomeProducts & servicesTP317LMn/1.4439/UNS 31726 Seamless Stainless Steel Tube

TP317LMn/1.4439/UNS 31726 Seamless Stainless Steel Tube

① STANDARD: ASTM A213/EN10216-5/ ASTM A249/ ASTM A269/ GOST 9940 /GOST 9941...

② OD RANGE : 6-257MM

③ THICKNESS RANGE: 1-35 MM

TP317LMn/1.4439/UNS 31726 Chemical Composition

C
Si
Mn
P
S Cr Mo Ni Cu N
≤0.03
≤1.00
≤2.00
≤0.040
≤0.030
17.00-20.00 4.00-5.00 13.50-17.50 ≤0.75
0.10-0.20

TP317LMn/1.4439/UNS 31726 Mechanical Properties

Hardness HB 30≤HB

Yield strength Rp≥N/mm²

Tensile strength Rm N/mm²

Elongation %

250

280

580-800

35/30

TP317LMn/1.4439/UNS 31726 Applications


317LMN stainless steel tube, also known as UNS S31726, have several applications across industries due to their unique properties:

  1. Chemical Processing Plants:
    • 317LMN tube are commonly used in chemical processing plants for conveying corrosive chemicals, acids, and alkalis.
    • Their resistance to corrosion ensures safe material transfer.
  2. Paper Mills:
    • In the paper and pulp industry, 317LMN stainless steel tube find use.
    • They withstand harsh conditions in paper production processes.
  3. Refineries:
    • Refineries utilize 317LMN tube for various applications, including handling aggressive media.
    • Their durability and resistance to environmental elements make them valuable.
  4. Power Plant Scrubber Systems:
    • 317LMN tube are essential components in power plant scrubber systems.
    • They resist corrosion from flue gases and other pollutants.
  5. Oil Production Equipment:
    • In the oil industry, 317LMN stainless steel tube are used for tube lines, wellheads, and other equipment.
    • Their strength and corrosion resistance withstand harsh oilfield conditions.

Remember that 317LMN stainless steel is a great choice when your application calls for strong resistance against environmental elements such as high temperatures or corrosive materials!


One of our Services--Testing

  • EN 10204/3.1B, EN 10204 3.1 and EN 10204 3.2 Material Test Certificates (MTC)
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  • Heat Treatment Charts
  • Third Party Inspection Report
  • Surface roughness and size measurement
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  • ......

One of our Services--End of Pipe and Tube

  • BE : Beveled end
  • BBE : Bevel both ends
  • BLE : Bevel large end
  • BSE : Bevel small end
  • TOE / POE = Treaded One End / Plain One End
  • TOE / BOE = Treaded One End / Beveled One End
  • POE / BOE = Plain One End / Beveled One End
  • TBE = Treaded Both Ends
  • PBE = Plain Both Ends

One of our Services--Packing

  • Ply Wooden Boxes
  • PE Fabric Bundles
  • Standard seaworthy export packing
  • Plastic Bags, or as required

One of our Services--Marking

  • Supplier / Manufacturer Name or Custom Logo - on request
  • Specification
  • Material Grade
  • Nominal Size
  • Schedule or Wall Thickness
  • Method of Manufacturing (Seamless or Welded)
  • Heat Number

Marked Pipe Sample: XTD ASTM A312  TP317LMn SEAMLESS 42.2x 3.56*6000MM HEAT NO. 2023121205A15

TP317LMn/1.4439/UNS 31726 Material Summary

317LMN stainless steel provides high corrosion resistance in acidic chloride-containing environments when compared to 316L and 317L stainless steel. It is a higher molybdenum austenitic stainless steel alloyed with nitrogen the higher molybdenum provides the alloy enhanced corrosion resistance, mainly in acidic chloride containing service.

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