ASTM B564 UNS N08031 Alloy 31 Orifice Flange

Alloy 31 Orifice Flange, Nickel Alloy steel flange, UNS N08031 Flange, Alloy 31 Flange, ASTM B564 Nickel Alloy steel flange

ALLOY 1.4562 / UNS N08031 / ALLOY 31
Corresponding Standards: EN 1.4562, UNS N08031

MATERIAL DESCRIPTION

• Alloy 31 is a nickel, chromium and molybdenum stainless steel with nitrogen and copper additions. It combines moderate tensile strength and high ductility with excellent corrosion resistance in sulfuric acid, reducing and oxidizing media and has strong resistance to corrosion and erosion corrosion in phosphoric environment.
• Typically the alloy has PREN of ≥ 48, which ensure that the resistance to pitting corrosion is high.

Alloy 31 Orifice Flange CHEMICAL COMPOSITION

PREN = (CR% + 3.3MO% + 16N%) ≥ 48
PRODUCT STANDARDS: ASTM B625 – 14
APPROVALS: FOR USAGE IN PRESSURE VESSELS 
 

ASTM B564 Alloy 31 Flanges Specification:

Standards: ASTM B564
Dimensions: ANSI/ASME B16.5, B16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, JIS
Pressure Rating: Class 150#, Class 300#, Class 400#, Class 600#, Class 900#, Class 1500#, Class 2500#, PN 6, PN 10, PN 16, PN 25 and PN 40 etc
Flange Facing: Flate Face (FF), Raised Face (RF), Ring Type Joint (RTJ)
Flange Types: Welding Neck Flange, Slip On Flange, Socket Weld Flange, Lap Joint Flange, Threaded Flange, Blind Flange, Orifice Flanges, Plate Flange, Long Welding Neck Flanges, Spectacle blind Flange, Orifice Flange, WNRF Flange, SORF Flange, SWRF Flange, Custom Flange as per Drawing etc.