Duplex Steel S31803 Flanges

  • Duplex Steel S31803 Flanges Manufacturers, Duplex Steel S31803 Flanges Factory, Supply Duplex Steel S31803 Flanges
  • Duplex Steel S31803 Flanges Manufacturers, Duplex Steel S31803 Flanges Factory, Supply Duplex Steel S31803 Flanges
Duplex Steel S31803 Flanges
  • China
  • 20-35 days
  • 100-150 Tons/month

Compared with stainless steel flanges, the yield strength of Duplex Steel S31803 Flanges is twice as high as that of stainless steel flanges.

Duplex Steel S31803 Flanges have excellent stress corrosion cracking resistance, especially the acid resistance of super duplex steel in chloride ion environment. Wear resistance is much higher than stainless steel flanges.

It is used in seawater desalination, sewage treatment and various acid-base environments. The service life is long, and the replacement time is saved. But also can save cost and labor.

Duplex Steel S31803 Flanges

Gerneral Products Introduction

Duplex Steel S31803 Flanges
MaterialsS31803, S2205, and S2507 grades
Materials StandardsANSI, ISO, JIS, DIN, BS,GB, SH, HG,QOST,ETC
Flanges Types

Slip on welding flange,

Welding necK flange,

Socket welding flange,

Threaded flange,

Lapped joined flange,

Blind flange,

Spectacle blind,etc

Manufacturing Standards

ANSI B16.5 

ANSI B16.47 


ANSI B16.36 

ANSI B16.48
ThicknessSTD, SCH40, SCH80, SCH160. SCHXX
Pressure gradeClass150,Class300,Class600,Class900,Class1500,Class2500
Applicationpetroleum, chemical, shipbuilding, metallurgy, electricity and mechanical industries
RemarksAs customers request
PackageSeaworthy Plywood Cases or pallet or as per customers requirement
Delivery time15-35 days
MarketsEurope, US, North America and Asia

Quality Control

Boberry Material Co.,Ltd. Stickily follow the quality management system ISO 9001 specification, and do a good job of trace ability follow-up from raw material, manufacturing processes, inspection, package to shipment.

Duplex Steel S31803 Flanges are our advantage products, our modern testing facilities is the key quality guarantee. we have PMI test equipment, the latest size measuring instrument, and experienced inspectors for carrying out PT, MT, UT, RT and VT, meanwhile we can offer mill test report with 3.1 or 3.2 as customers requirements.

Other Information

1, If upto our minimum production quantity, for Duplex Steel S31803 Flanges, we accept customized specification as drawings;

2, Delivery term: CIF, CNF, FOB

3, Payment terms: 30% deposit, the balance aganist with the copy of B/L

                              100% L/C at sight

The optimal solution
We will always choose the most appropriate process for each forging item, in order to manufacture product of stable quality during the shortest leading time. We guarantee our delivery product has the longest service life of similar products while at low cost to the extremely....more
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