We could produce SAF 2205 plate and sheets with Sizes range
from 4.5MM thick to 200MM thickness, up to 3000 wide.
The thickness of SAF 2205 strips and coil that we could do range
from 0.05MM to 3MM
The surface finish of SAF 2205 strips and coils that we could do is
as follows:2B / 2D / BA
The hardness of EN SAF 2205 strip and coils that we could do is as
follows:1/4 Hard, 1/2 Hard, 3/4 Hard, Full Hard, Spring Hard,
Annealed, Pickled Soft
Customers can select a number of processing options to produce SAF
2205 plate to their exact specifications, reducing materiel costs,
production time, scrap and internal handling. All stainless steel
grades of plate can be cut
We can polish nearly any SAF 2205 plates,sheets,coils,strips to a
#4 polish, #6 Polish, #7 polish or a #8 mirror finish. Our SAF 2205
plate,sheets,coils,strips can be polished on one side or two sides.
In order to control the quality of SAF 2205
plate,sheets,coils,strips,Test pieces are cut from each
plate,sheets,coils,strips and sent to our Metallurgical Laboratory,
where, aided by a computerized Certificate of Test system, experts
determine if the plate,sheets,coils,strips meet all requirements
for shipment. Each plate,sheets,coils,strips is analyzed on an
optical emission spectrometer to verify chemical content. The
microstructure of the plate,sheets,coils,strips is examined for
strength, ductility, and corrosion resistance. All additional scrap
is separated by grade and returned to a melt shop for recycling
2205 duplex stainless steel is a cost effective solution for many
applications where the 300 series stainless steels are susceptible
to chloride stress corrosion cracking. Stress corrosion cracking
occurs when stainless steels are subjected to tensile stress, while
in contact with solutions containing chlorides. Increasing
temperatures also increase the susceptibility of stainless steels
to stress corrosion cracking.
The combination of chromium, molybdenum and nitrogen convey the
good resistance of 2205 to chloride pitting and crevice corrosion.
This resistance is extremely important for services such as marine
environments, brackish water, bleaching operations, closed loop
water systems and some food processing applications. The high
chromium, molybdenum and nitrogen contents of 2205 provide
corrosion resistance superior to common stainless steels, such as,
316L and 317L in most environments.
Chemical Composition, %
Cr | Ni | Mo | C | N |
---|
22.0-23.0 | 4.50-6.50 | 3.00-3.50 | .030 Max | 0.14-0.20 |
Mn | Si | P | S | Fe |
---|
2.00 Max | 1.00 Max | .030 Max | .020 Max | Balance |
What are the characteristics of Duplex 2205?
- High resistance to chloride stress corrosion cracking
- Resistance to chloride pitting and crevice corrosion
- Good general corrosion resistance
- Good sulfide stress corrosion resistance
- High Strength
- Good weldability and workability
In what applications is Duplex 2205 used?
- Chemical process vessels, piping and heat exchangers
- Pulp mill digesters, bleach washers, chip pre-steaming vessels
- Food processing equipment
- Oil field piping and heat exchangers
- Flue gas desulfurization equipment