Sb 163 N08825 Sb 423 Uns N08825 Incoloy Alloy 825 Inconel 825 Pipe Sheet

High Tempreture Incoloy Alloy 825 UNSN08825 For Bar Plate Pipe Tube Chemical Processing

Introduction

INCOLOY 825 is a nickel-iron-chromium alloy with additions of molybdenum, copper, and titanium. The alloy’s chemical composition, given in Table 1, is designed to provide exceptional resistance to many corrosive environments. The nickel content is sufficient for resistance to chloride-ion stress-corrosion cracking. The nickel, in conjunction with the molybdenum and copper, also gives outstanding resistance to reducing environments such as those containing sulfuric and phosphoric acids. The molybdenum also aids resistance to pitting and crevice corrosion. The alloy’s chromium content confers resistance to a variety of oxidizing substances such as nitric acid, nitrates and oxidizing salt. The titanium addition serves, with an appropriate heat treatment, to stabilize the alloy against sensitization to intergranular corrosion.

The resistance of INCOLOY 825 to general and localized corrosion under diverse conditions gives the alloy broad usefulness. Applications include chemical processing, pollution control, oil and gas recovery, acid production, pickling operations, nuclear fuel reprocessing, and handling of radioactive wastes. Applications for alloy 825 are similar to those for INCOLOY alloy 020.

Character

• 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 1020° F
• Permission for pressure-vessel use at wall temperatures up to 800°F

Application

• 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

Equal grades

NS1402(China), W.Nr. 2.4858, UNS N08825,

Chemical composition

Nickel ..........................................................................38.0-46.0

Iron...............................................................................22.0 min.

Chromium....................................................................19.5-23.5

Molybdenum ...................................................................2.5-3.5

Copper ............................................................................1.5-3.0

Titanium...........................................................................0.6-1.2

Carbon........................................................................0.05 max.

Manganese ...................................................................1.0 max.

Sulfur ..........................................................................0.03 max.

Silicon ...........................................................................0.5 max.

Aluminum......................................................................0.2 max.

Standards

Rod, Bar, Wire and Forging Stock - ASTM B 425, ASTM B 564, ASME SB 425, ASME SB 564,

Plate, Sheet and Strip – ASTM B 424, ASTM B 906, ASME SB 424, ASME SB 906

Pipe and Tube - ASTM B 163, ASTM B 423, ASTM B 704, ASTM B 705, ASTM B 751, ASTM B 775, ASTM B 829, ASME SB 163, ASME SB 423, ASME SB 704, ASME SB 705, ASME SB 751, ASME SB 775, ASME SB 829

Others - ASTM B 366, ASME SB 366

Forms of products available

Bar, rod, sheet, plate, pipe, tube, pipe fitting, flange, fastener, powder

Stock & Delivery

Plenty of sheet/plate in stock with US/EU/Japan origin. Huge stock of bars. Customized size will be delivered within 2 weeks. For other products kindly confirm with A-one Alloy.

INCONEL, INCOLOY, MONEL, INCO-WELD, INCOFLUXand 800HT are trademarks of the Special Metals Corporation group of companies.