UNS S31803 Plates
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We produce UNS S31803 Plates,UNS S31803 Sheets,UNS S31803 Coils, UNS S31803 Strips,S31803 Plates,S31803 Sheets,S31803 Coils, S31803 Strips,UNS S31803 cold rolled strips,UNS S31803 hot rolled strips,UNS S31803 hot rolled plates, UNS S31803 cold rolled plates from china

We could produce  UNS S31803 plate and sheets with Sizes range from 4.5MM thick to 200MM thickness, up to 3000 wide.

The thickness of UNS S31803 strips and coil that we could do range from 0.05MM to 3MM

The surface finish of UNS S31803 strips and coils that we could do is as follows:2B / 2D / BA

The hardness of S31803 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 UNS S31803 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 UNS S31803 plates,sheets,coils,strips to a #4 polish, #6 Polish, #7 polish or a #8 mirror finish. Our UNS S31803 plate,sheets,coils,strips can be polished on one side or two sides.

In order to control the quality of UNS S31803 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

UNS S31803 is a duplex stainless steel designed to combine improved resistance to stress corrosion cracking, pitting, crevice corrosion and high strength when compared with other stainless alloys.

We could produce UNS S31803 plates,sheets,coils,strips as per the standard of ASTM B463

The chemical composition of UNS S31803  plates,sheets,coils,strips is as follows


0.03 max


21 - 23




2 max


2.5 - 3.5


4.5 - 6.5


0.08 - 0.2


0.03 max


1 max


0.02 max

The mechanical property of UNS S31803  plates,sheets,coils,strips is as follows




Ultimate  Tensile Strength *

620 Mpa

0.2 %  Yield Strength *

450 Mpa


25 % min

Reduction  of Area *

45 % min

Charpy  Impact Toughness

55 mean/  40 min J at –46o C


See note  below

We will do 100% UT test for UNS S31803 plates,sheets,coils,strips

We could supply S31803  plate,sheets,coils,strips material certificate as pe EN10204-3.1 or EN10204-3.2 by third party(like TUV,DNV,GL,and so on)

Our UNS S31803 plates,sheets,coils,strips are widely used in Continuous Steam Sterilizer,Chamber Dryer.Size Cooker.Hydro Extractor,Petroleum Refining  fluid catalytic cracking units,high-pressure (microbial) deep-sea sampler and incubation chambers,Mixing tanks,CNG Storage.LNG Cryogenics,Scrubbers and so on

In order to produce UNS S31803 plates,sheets,coils,strips, we are equipped with state-of-the-art equipments,which include 20 High Sendzimir Mills,degreasing cleaning lines,continuous bright annealing furnaces,Skin pass mills,a Tension Levelers , Slitters and fly shears

Please tell us the size of UNS S31803 plates,UNS S31803 sheets,UNS S31803 coils,UNS S31803 strips that you need, we are glad to quote the best price

Except UNS S31803 plates,we also could produce UNS S31803 flanges,UNS S31803 bars,UNS S31803 fastener,UNS S31803 bolts,UNS S31803 fittings,UNS S31803 pipes,UNS S31803 tubes,UNS S31803 springs