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What is stainless steel 317LN?

Stainless steel 317LN is a nitrogen alloyed austenitic stainless steel having high nitrogen content than other austenitic stainless steels. It has higher yield and tensile strength than 317ل. This low carbon grade steel provides resistance to sensitization during welding and thermal processes. Low carbon content in its composition makes the alloy resistant to inter granular corrosion. It also offers excellent corrosion resistance to organic, sulfuric and phosphoric acids.

317LN الفولاذ المقاوم للصدأ 1.4434 نموذج المنتجات النهائية
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  • مربع
Applications for 317LN الفولاذ المقاوم للصدأ
  • Chemical processing equipment
  • معدات تجهيز الأغذية
  • Pharmaceutical manufacturing equipment
  • Marine engines and exhaust systems
  • Offshore drilling platforms
  • Aerospace components
  • Power generation equipment
  • Heat exchangers
  • Boilers
  • Turbines
  • Piping systems
  • Reactors
  • Tanks
  • الصمامات
  • Springs
هquivalents of grade 317LN
JIS G4304أستمنحنKSISO DesignationAISI
SUS317LN317LNS31753STS317LNX2CrNiMoN18-12-4317LN
Chemical Composition
عناصرFeسجل تجاريفيشهرمينيسوتاونصجس
دقيقة (%)57.918113.00.1
الأعلى (%)67.920154.02.00.750.220.0450.0300.030
الخصائص الميكانيكية 
PropertiesMetricImperial
Tensile strength≥590 MPa≥85600 psi
Yield strength≥285 MPa≥41300 ksi
Modulus of elasticity200 المعدل التراكمي29000 ksi
Shear modulus77 المعدل التراكمي11200 ksi
Poissons ratio0.2990.299
Elongation at break≥40%≥40%
الخصائص الفيزيائية
TP317LN Stainless steel 1.4434 (نحن 31753) الخصائص الفيزيائية
TP317LN Stainless steel 1.4434 (نحن 31753) الخصائص الفيزيائية
Manufacturing process

The properties of 317LN is similar to other conventional austenitic stainless steels, and can therefore, be fabricated in a manner similar to alloys 316ل and 317L. Heat treatment of 317LN can be carried out at temperatures ranging from 1080 to1175°C (1975 to 2150°F) followed by rapid water quenching. This grade is not hardenable.

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