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UNS S31803/S32205 Duplex Stainless Steel Pipe DN5-DN400 ASTM A790/790M

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WINFAST STEEL INDUSTRIAL LIMITED
City: Wuxi
Province/State: Jiangsu
Country/Region: China
Tel: 86-510-8868-8870
Contact Person:
Mr Gao

UNS S31803/S32205 Duplex Stainless Steel Pipe DN5-DN400 ASTM A790/790M

Brand Name : TSING SHAN
Model Number : UNS S31803 / S32205
Certification : ISO
Place of Origin : China,Shanghai
MOQ : 0.5 Tons
Price : 4000- 4500 USD/Ton
Payment Terms : L/C, T/T
Supply Ability : 400 Tons / Month
Delivery Time : Within 10 days
Packaging Details : good packing suit for stainless steel round bar export
Products : Duplex stainless steel pipe
Shape : Round
Diameter : DN5 - DN400
Length : 5 - 8 Meters
Surface : pickled
Thickness : SCH10 - SCH160
Standard : ASTM GB JIS EN
Type : seamless pipe
Grade : 2205 / S31803 / S32205
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ASTM A213/213M UNS S31803/S32205 Duplex Stainless Steel Pipe Tubes DN5-DN400


NameDuplex stainless steel pipeGradeUNS S31803 / S32205
ODDN5 - DN400Length5 - 8 Meter / PCS
ThicknessSCH10 - SCH160SurfacePickled
Typeseamless pipeStandardASTM A790

More informations of our products


Super Duplex UNS S31803 Duplex Stainless Steel Seamless Pipe / Duplex Stainless Pipe
Product NameDuplex Stainless Steel Pipe
StandardJIS AISI ASTM GB DIN
GradeUNS S31803 / S32205
DiameterDN5 - DN400
Length5-8m,or according to the clients’ request
Surface TreatmentPickling, Bright, Black
ShapeRound
PackageSeaworthy packing or as the customers’ requirement
ApplicationConstruction ,chemical ,shipbuilding ,machine-made household industry
Trade TermFOB CIF
PaymentT/T L/C
Loading PortShanghai
Delivery Time5-30days, mainly in accordance with the quantity
ReportMaterial report ,Mechanical performance report
CertificationISO9001

UNS S31803 duplex stainless steel stockholders and suppliers, delivering to the whole of the UK. West Yorkshire Steel are suppliers of UNS S31803, a chromium nickel molybdenum austenitic ferritic grade. It combines improved resistance to stress corrosion cracking, pitting, crevice corrosion and high strength in comparison with other stainless steel grades. UNS S31803 grade duplex resists chloride environments and sulphide stress corrosion. It is approximately double the yield strength of standard austenitic stainless steel grades. As with other duplex stainless steel specifications oxidation resistance is good at high temperature, though it is prone to embrittlement when exposed to temperatures above 300°C and is prone to embrittlement at 475°C when exposed for 2 hours only. It is also subject to embrittlement between 370-540°C when exposed over a longer period.

Material summary and usage


S31803 steel is ultra-low carbon dual- phase stainless acid resistant steel. It is provided with excellent pitting corrosion and crevice corrosion resistant performances. In addition, nitrogen, as a strong element that forms and stabilizes austenite, still ensures the existence of certain amount of austenite in the structure even if after welding or heating under high temperature, and makes it difficult to form single-phase ferrite. The dual-phase proportion is not sensitive to the change of heating temperature.


Chemical composition(%)


StandardNo.

C

(max)

Si

(max)

Mn

(max)

P

(max)

S

(max)

CrNiMoN
ASTMS318030.0301.002.000.0300.02021.0-23.04.5-6.52.5-3.50.08-0.20
EN1.44620.0301.002.000.0350.01521.0-23.04.5-6.52.5-3.50.10-0.22

Mechanical properties


No.

Tensile Strength 

σb(Mpa)

Yield Point

σs(Mpa)

Elongation Rate

δ5(%)

HBHRC
S31803≥620≥450≥25≤290≥30.5

Application fields

It is suitable for manufacturing various industrial heat exchangers, especially in the H2S condition that contains chlorides, acetic acid and other organic acid solutions: conveying pipes in oilfields, oil ports and well heads; air coolers for oilfields and gas fields; air coolers for refineries and hydrogen cracking towers; PE coolers; seawater desalting exchangers, etc.




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UNS S31803/S32205 Duplex Stainless Steel Pipe DN5-DN400 ASTM A790/790M Images

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