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TP 317L / UNS S31703

TP 317L is a molybdenum containing austenitic stainless steel, with improved corrosion resistance over 304/304L and 316/316L stainless steel. The increased levels of chromium, nickel and molybdenum over 316L stainless steel improve chloride pitting resistance and general corrosion. Through the controlled addition of nitrogen, it is common for 317L to meet the mechanical properties of 317 straight grade, while maintaining a low carbon content.

Applications are for Flue gas desulfurization systems, Chemical process vessels, Petrochemical, Pulp and paper, Condensers in power generation

 

  • Heat Exchanger Tubes
  • Boiler Tubes & Pipes
  • Line Pipes
  • Hydraulic Tubes
  • Instrumentation Tubes
  • Structural Pipes
  • Mechanical Tubes & Pipes

TPS Technitube supplies TP 317L / UNS S31703 in a big variety of forms incl.:

Chemical Composition

C = 0.035 % max S = 0.030 % max
Si = 0.75 % max Ni = 11.00-15.00 %
Mn = 2.00 % max Cr = 18.00-20.00 %
P = 0.040 % max Mo = 3.00-4.00 %

Mechanical properties all at room temperature

Elongation in 2 in or 50 mm, (or 4D), min 40%
YS min
KSI (MPa) = 30[205]
TS min
KSI [MPa] = 75[515]
El. Min 35

 

 

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    TPS-Technitube Röhrenwerke GmbH
    Julius-Saxler-Str. 7 | 54550 Daun/Germany
    Tel.: +49 65 92 71 20 | Fax: +49 65 92 1305
    www.technistock.de | www.tpsd.de | E-Mail: service@tpsd.de