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Duplex Stainless
Steel Plate Properties
As a leading fabricator of stainless
steel plate products, Sandmeyer Steel Company commits
to stocking the high-quality duplex stainless steel
plate that our customers need for specific applications.
In fact, Sandmeyer Steel Company has the most extensive
inventory of super duplex stainless steel plate (alloy
2507) in the country. Please visit the stainless
steel plate inventory to see the thicknesses of
our duplex stainless plate or continue reading to learn
about the properties and benefits of duplex stainless
steel plate.
Duplex Stainless Steel Plate Properties:
General Corrosion Resistance
General corrosion is identified by the surface of metal
being damaged, discolored, or worn away. In some instances,
the metal loses its aesthetic appeal but presents little
risk of catastrophic damage to the structure. In other
applications, however, surface erosion could adulterate
and destroy the product or pose a threat to environmental
and human health. All types of stainless steel plate
resist general corrosion, though duplex stainless steel
tends to have a much higher resistance. This resistance
makes it an excellent choice for pharmaceutical, food
processing, beverage bottling, etc. where contamination
of products by eroded metal must be avoided.
Duplex Stainless Steel Plate Properties:
Localized Corrosion Resistance
Forms of localized corrosion include pitting, crevice,
and stress corrosion cracking. Metal is damaged in specific
areas, usually in the presence of a corrosive liquid.
Localized corrosion causes perforation, leaking, metal
fatigue, and more. Unlike the case of general corrosion,
different alloying elements of stainless steel plate
grades result in various levels of resistance to localized
corrosion. Duplex stainless steel plate products are
known for better levels of resistance to localized corrosion.
Please visit the duplex
stainless plate section to learn more.
Duplex Stainless Steel Plate Properties:
Exceptional Strength
Impact strength, yield strength, and tensile strength
are all measures of the amount of energy needed to permanently
deform and damage a piece of stainless steel. Duplex
stainless steel plates resist shock, bending, and tension
to a higher degree than other types of stainless steels.
Strength and other mechanical properties of duplex stainless
steel plates are also relative to heat: duplex alloys
therefore have specific working temperature ranges.
Duplex Stainless Steel Plate Properties:
Thermal Conductivity and Expansion
Both 2507 and 2205 duplex stainless steel are known for
high thermal conductivity with low thermal expansion coefficients.
A low, predictable thermal expansion coefficient with
high thermal conductivity in a stainless steel means it
is resistant to the cracking that accompanies thermal
shock and will conduct heat without excessive deformation.
These properties make these grades of duplex stainless
steel valuable for applications involving prolonged exposure
to elevated temperatures.
To learn more about the properties of specific
duplex stainless steel grades, please visit the individual
pages for 2205 duplex stainless
steel plate, 2304 duplex
stainless steel plate, and 2507
duplex stainless steel plate.
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