Alloy 31

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alloy 31 grade alloy 31 uns n08031
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Alloy 31 / 1.4562 / UNS N08031 Special Parts

Alloy 31 / 1.4562 / UNS N08031

In round bars, sheets, also cut to special parts.

Alloy 31 – Werkstoff 1.4562 - UNS N08031 will be deliver in round steel – forgings – sheets – sheet cut to size.

Nickel Alloy 31 - 1.4562 round bars
Nickel Alloy 31 - 1.4562 forgings
Nickel Alloy 31 - 1.4562 sheet /
Nickel Alloy 31 - 1.4562 sheet cuts

UNS N08031 round bars
UNS N08031 forgings
UNS N08031 sheet/plates ( also cut to special parts.)

UNS N08031 sheet cuts ( also cut to special parts.)

Nickel Alloy 31, UNS N08031, 1.4562

Certificates: EN 10204 / 3.1

Alloy 31 - UNS N08031 - X1NiCrMoCu 32 28 7 - 1.4562

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 Alloy 31 is characterized by outstanding resistance to corrosion in halide media, both acidic and basic; outstanding resistance to sulfuric acid, even highly concentrated; outstanding resistance to corrosion and erosion-corrosion in phosphoric acid media; excellent resistance to both localized corrosion and general corrosion in chlorine dioxide bleach media; excellent resistance to both reducing and oxidizing media, and ease of fabrication and welding. Approval for pressure-vessel use involving wall temperatures from -196 to 550ºC (-320 to 1020ºF).

APPLICATIONS

  • Chemical and petrochemical industries
  • Environmental engineering
  • Oil and gas production

GENERAL CHARACTERISTICS

  • The higher conditional stress values of up to 90% of the yield strenght at temperature may be used for applications in which slightly greater deformation is acceptable.
  • Alloy 31 has a face-centered-cubic structure. The 0.2% nitrogen content stabilizes the austenite and reduces the tendency to precipitation of intermetallic phases.

TECHNICAL INFORMATION

Specifications

Alloy 31 - UNS N08031
Product Norm ASTM
Seamless Tubes B-622
Welded Tubes B-619 B-626
Plates B-625
Bars B-649 B-581
Flanges B-564
Fittings

Chemical specifications %

Alloy 31 - UNS N08031
Element Simbol Maximum
Carbon C 0,015
Manganese Mn 2,0
Phosphorus P 0,020
Sulfur S 0,010
Silicon Si 0,30
Nickel Ni 30,0-32,0
Chrome Cr 26,0-28,0
Molybdenum Mo 6,0-7,0
Nitrogen N 0,15-0,25
Copper Cu 1,0-1,4
Iron Fe Balance

Mechanical Properties

Alloy 31 - UNS N08031
Norm Rm min. Rp 0,2% min. E4d min.% Z min.% T.I.(J) HR B HB
B-564 94 (650) 40 (276) 40        
B-581 94 (648) 40 (276) 40        
B-619 94 (650) 40 (276) 40        
B-622 100 (650) 40 (276) 40        
B-625 94 (650) 40 (276) 40        
B-626 94 (650) 40 (276) 40        
B-649 94 (650) 40 (270) 40        

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