Stainless Steel 317LM

Do you need custom fasteners created with Stainless Steel 317LM? Since our inception, Vegas Fastener Group 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. %
C Max 0.03
Cr 18 – 20
Fe 60
Mn Max 2
Mo 4 – 5
N Max 0.1
Ni 13.5 – 17.5
P Max 0.04
S Max 0.03
Si Max 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 Properties Metric English Comments
Density 8 g/cc 0.289 lb/in³
Mechanical Properties
Tensile Strength, Ultimate Min 515 MPa Min 74700 psi ASTM A240
Tensile Strength, Yield Min 205 MPa Min 29700 psi ASTM A240
Elongation at Break Min 40 % Min 40 % ASTM A240
Modulus of Elasticity 200 GPa 29000 ksi
Electrical Properties
Electrical Resistivity 7.9e-005 ohm-cm 7.9e-005 ohm-cm
Magnetic Permeability 1.0028 1.0028 fully annealed 0.5″ plate; 1.0028 65% cold-worked 0.5″ plate
Thermal Properties
CTE, linear 20°C 16.5 µm/m-°C 9.17 µin/in-°F Range 25° – 100°C
CTE, linear 500°C 18.2 µm/m-°C 10.1 µin/in-°F Range 25°- 500°C
CTE, linear 1000°C 19.5 µm/m-°C 10.8 µin/in-°F Range 25°- 1000°C
Heat Capacity 0.46 J/g-°C 0.11 BTU/lb-°F
Thermal Conductivity 14.6 W/m-K 101 BTU-in/hr-ft²-°F
Melting Point 1320 – 1400 °C 2410 – 2550 °F
Solidus 1320 °C 2410 °F
Liquidus 1400 °C 2550 °F
Maximum Service Temperature, Air 899 °C 1650 °F oxidation resistance is excellent and low scaling rate at this temp