TP317LN Stainless steel 1.4434 (NAS 31753)

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 317L. 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 stal nierdzewna 1.4434 Finished Products Form

• Coil – Pas
• Folia: Inquire with Ulbrich Stainless Steel Wire – Profile
• Okrągły
• Płaski
• Kwadrat

Wnioski dla 317LN stal nierdzewna

• Chemical processing equipment
• Sprzęt do przetwarzania spożywczego
• Pharmaceutical manufacturing equipment
• Marine engines and exhaust systems
• Offshore drilling platforms
• Aerospace components
• Power generation equipment
• Heat exchangers
• Boilers
• Turbines
• Piping systems
• Reactors
• Tanks
• Valves
• Springs

miquivalents of grade 317LN

JIS G4304	ASTM	NAS	KS	ISO Designation	Aisi
SUS317LN	317LN	S31753	STS317LN	X2CrNiMoN18-12-4	317LN

Chemical Composition

Elements	Fe	Kr	W	Pon	Mn	I	N	P	C	S
Min (%)	57.9	18	11	3.0	–	–	0.1	–	–	–
Maks (%)	67.9	20	15	4.0	2.0	0.75	0.22	0.045	0.030	0.030

Właściwości mechaniczne 

Nieruchomości	Metryczny	Cesarski
Wytrzymałość na rozciąganie	≥590 MPa	≥85600 psi
Siła plastyczności	≥285 MPa	≥41300 ksi
Moduł sprężystości	200 GPa	29000 ksi
Moduł ścinania	77 GPa	11200 ksi
Poissons ratio	0.299	0.299
Wydłużenie przy zerwaniu	≥40%	≥40%

Właściwości fizyczne

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 316L 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.