BEST PIPELINE EQUIPMENT CO.,LTD
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Product Specification
| High Light | Duplex Stainless Steel Blind Flange ，UNS S31803 Forged Flange ，Corrosion Resistant EN1092 Flange | ||
UNS S31803 duplex stainless steel features a balanced 50:50 microstructure of austenite and ferrite, delivering exceptional mechanical strength (yield strength typically exceeding 480 MPa) combined with good ductility and moderate to excellent corrosion resistance across various environments.
Available with PREN (Pitting Resistance Equivalent) >34 by agreement, this alloy provides maximum pitting corrosion resistance for its grade class. The material also offers superior resistance to stress corrosion cracking and maintains excellent notch ductility at both ambient and subzero temperatures.
This duplex steel serves as an effective alternative to 300 series stainless steels in applications requiring higher mechanical strength, reduced weight, and enhanced stress corrosion cracking resistance.
This duplex stainless steel grade presents no significant challenges for machining or welding operations. Comprehensive guidance notes are available upon request.
| Element | C | Mn | Si | S | P | Cr | Ni | Mo | N |
|---|---|---|---|---|---|---|---|---|---|
| Min | 21.0 | 4.5 | 2.5 | 0.10 | |||||
| Max | 0.03 | 2.00 | 1.00 | 0.015 | 0.035 | 23.0 | 6.5 | 3.5 | 0.22 |
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Agent,Importer,Exporter,Trading Company,Seller,Other
Year Established:
2010
Total Annual:
1000000-5000000
Employee Number:
116~209
Ecer Certification：
Verified Supplier
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