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Ferralium 255 Material Property Data Sheet

Do you need custom fasteners created with Ferralium 255? 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 Ferralium 255 Bar Stock we have available to meet your needs.

 

Ferralium Alloy 255 solution treated at 1120C, cooled rapidly, 19-25 mm


Subcategory: Heat Resisting; Metal; Stainless Steel

Component   Wt. %
CMax 0.04 
Cr26 
Cu1.7 
Component   Wt. %
Fe62 
Mn0.8 
Mo3.3 
0.17
Component   Wt. %
N 
Ni5.5 
Si0.45 

Material Notes:
Patented, ferritic-austenitic; high mechanical strength, ductility, and hardness with resistance to corrosion and erosion. Excellent resistance to acids and salts. Duplex alloy with nearly equal portions of austenite and ferrite-matrix phases. Applications include pumps, agitators, valves, and piping for handling wet phosphoric acid slurries, marine scrubbers, pumps and seals, and acid handling equipment.

Physical PropertiesMetricEnglishComments
Density7.81 g/cc0.282 lb/in at 20C (68F)

Mechanical Properties
Hardness, Brinell163163 Converted from Rockwell B hardness.
Hardness, Rockwell B9595 
Hardness, Vickers220220 Converted from Rockwell B hardness.
Tensile Strength, Ultimate800 MPa116000 psi 
Tensile Strength, Yield600 MPa87000 psi at 0.2% offset
Elongation at Break31 %31 % in 50 mm

Electrical Properties
Electrical Resistivity8.4e-005 ohm-cm8.4e-005 ohm-cm at 25C

Thermal Properties
CTE, linear 20C11 m/m-C6.11 in/in-F at 20-93C, 11.7 m/mC at 20-205C
CTE, linear 250C12.1 m/m-C6.72 in/in-F at 20-315C, 12.4 m/mC at 20-425C
CTE, linear 500C13 m/m-C7.22 in/in-F at 20-540C
Heat Capacity0.48 J/g-C0.115 BTU/lb-F Typical value for stainless steel.
Thermal Conductivity15.1 W/m-K105 BTU-in/hr-ft-F at 100C

References are available for this material.

 


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