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Stainless Steel 317LM Material Property Data Sheet

Do you need custom fasteners created with Stainless Steel 317LM? Since our inception, Vegas Fastener Manufacturing has met every challenge of providing Quality, Timely, Cost-effective solutions for specialty fastener applications. Every product is built to your specifications, using your prints if necessary.

Below are the technical specifications of the Stainless Steel 317LM Bar Stock we have available to meet your needs.

 

Allegheny Ludlum Stainless Steel Chromium-Nickel-Molybdenum 317LX (UNS S31725)


Subcategory: Metal; Stainless Steel; T 300 Series Stainless Steel

Key Words: Plate, sheet, and tube spec is ASTM A-240

Component   Wt. %
CMax 0.03 
Cr18 - 20 
Fe60 
MnMax 2 
Component   Wt. %
Mo4 - 5 
N Max 0.1 
Ni13.5 - 17.5 
Component   Wt. %
PMax 0.04 
SMax 0.03 
SiMax 0.75 

Material Notes:
Iron content above calculated as balance.

Allegheny Ludlum's 317LX is molybdenum-bearing austenitic stainless steel with greatly increased resistance to chemical attack as compared to the conventional chromium-nickel austenitic stainless steels such as Type 304. AL 317LX alloy also offers higher creep, stress-to-rupture, and tensile strength at elevated temperatures than conventional stainless steels. The alloy has low carbon to provide resistance to sensitization during welding and other thermal processes. Increased levels of molybdenum enhance resistance to pitting and crevice corrosion especially in process steams containing acids, chlorides and sulfur compounds at elevated temperatures. This alloy is intended for severe service conditions such as flue gas desulfurization (FGD) systems.

Information provided by Allegheny Ludlum Corporation.

Physical PropertiesMetricEnglishComments
Density8 g/cc0.289 lb/in 

Mechanical Properties
Tensile Strength, UltimateMin 515 MPaMin 74700 psi ASTM A240
Tensile Strength, YieldMin 205 MPaMin 29700 psi ASTM A240
Elongation at BreakMin 40 %Min 40 % ASTM A240
Modulus of Elasticity200 GPa29000 ksi 

Electrical Properties
Electrical Resistivity7.9e-005 ohm-cm7.9e-005 ohm-cm 
Magnetic Permeability1.00281.0028 fully annealed 0.5" plate; 1.0028 65% cold-worked 0.5" plate

Thermal Properties
CTE, linear 20C16.5 m/m-C9.17 in/in-F Range 25 - 100C
CTE, linear 500C18.2 m/m-C10.1 in/in-F Range 25- 500C
CTE, linear 1000C19.5 m/m-C10.8 in/in-F Range 25- 1000C
Heat Capacity0.46 J/g-C0.11 BTU/lb-F 
Thermal Conductivity14.6 W/m-K101 BTU-in/hr-ft-F 
Melting Point1320 - 1400 C2410 - 2550 F 
Solidus1320 C2410 F 
Liquidus1400 C2550 F 
Maximum Service Temperature, Air899 C1650 F oxidation resistance is excellent and low scaling rate at this temp

 


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