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INCOLOY 825

1. Excellent resistance to reducing and oxidizing acids
2.Good resistance to stress-corrosion cracking
3.Satisfactory resistance to localized attack like pitting and crevice corrosion
4.Very resistant to sulfuric and phosphoric acids
5.Good mechanical properties at both room and elevated temperatures up to approximately 1000°F
6.Permission for pressure-vessel use at wall temperatures up to 800°F

Incoloy Series:
  • INCOLOY 825
  • RONSCO
  • Alloy1996INCOY825
  • INCOLOY 825
  • Sheet,Plate,Pipe,Bar
  • Specialized seawater equipment ,Chemical industry
  • Remainder
  • INCOLOY 825/UNS N08825/DIN2.4858
  • Regular Marine packing
  • Customized
  • Provided
  • 15kg
  • have

INCOLOY 825

UNS Number N08825
Other common names: Alloy 825, Inconel 825

Incoloy 825 is a nickel-iron-chromium alloy with additions of molybdenum, copper and titanium. This nickel steel alloys chemical composition is designed to provide exceptional resistance to many corrosive environments. It is similar to alloy 800 but has improved resistance to aqueous corrosion. It has excellent resistance to both reducing and oxidizing acids, to stress-corrosion cracking, and to localized attack such as pitting and crevice corrosion. Alloy 825 is especially resistant to sulfuric and phosphoric acids. This nickel steel alloy is used for chemical processing, pollution-control equipment, oil and gas well piping, nuclear fuel reprocessing, acid production, and pickling equipment.

In what forms is Incoloy 825?
· Sheet
· Plate
· Bar
· Pipe & Tube (welded & seamless)
· Fittings (i.e. flanges, slip-ons, blinds, weld-necks, lapjoints, long welding necks, socket welds, elbows, tees, stub-ends, returns, caps, crosses, reducers, and pipe nipples)

What are the characteristics of Incoloy 825?
· Excellent resistance to reducing and oxidizing acids
· Good resistance to stress-corrosion cracking
· Satisfactory resistance to localized attack like pitting and crevice corrosion
· Very resistant to sulfuric and phosphoric acids
· Good mechanical properties at both room and elevated temperatures up to approximately 1000°F
· Permission for pressure-vessel use at wall temperatures up to 800°F

Alloy 825 (UNS N08825) Chemical Composition( %)


Ni Fe Cr Mb Cu Ti C Mn S Si Al
38.0-46.0 22.0 min 19.5-23.5 2.5-3.5 1.5-3.0 .6-1.2 0.05 max 1.0 max 0.03 max 0.5 max 0.2 max

Corrosion Resistance
Alloy 825 has a high level of corrosion resistance. It resists general corrosion, pitting, crevice corrosion, intergranular corrosion, and stress-corrosion cracking in both reducing and oxidizing environments.

In what applications is Incoloy 825 used?
· Chemical Processing
· Pollution-control
· Oil and gas well piping
· Nuclear fuel reprocessing
· Components in Pickling equipment like heating coils, tanks, baskets and chains
· Acid production

ASTM Specifications
Pipe Smls Pipe Welded Tube Smls Tube Welded Sheet/Plate Bar Forging Fitting
B423


B424 B425 B564 B366, B564

General Mechanical Properties
Tensile (ksi) .2% Yield (ksi)
85 30-35

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