Incoloy 825 is a Nickel-Iron-Chrome alloy containing Molybdenum and Copper. Excellent resistance to both reducing and oxidizing acids, stress-corrosion cracking and localized pitting and crevice corrosion. It is especially resistant to sulfuric and phosphoric acids.

Incoloy 825 (UNS N08825 / 2.4858) is a nickel-iron-chromium alloy containing molybdenum, copper and titanium. Incoloy 825 is designed to provide outstanding resistance to many corrosive environments. Nickel content is sufficient for resistance to chloride-ion stress-corrosion cracking. Combined with molybdenum and copper, nickel, sulfuric and phosphoric acids also provide exceptional resistance to reducing the environment. Molybdenum is also resistant to pitting and crevice corrosion. The chromium content of the alloy gives resistance to various oxidizing agents such as nitric acid, nitrates and oxidizing salt. Incoloy 825 is used in many fields such as chemical processing, pollution control, oil and gas recovery, acid production, pickling processes, nuclear fuel reprocessing and radioactive waste transportation.

Incoloy 825 has good mechanical properties from cryogenic temperatures to high temperatures. Exposure to temperatures above about 1000 ° F (540 ° C) can cause microstructural changes that significantly reduce ductility and impact strength. Therefore, the alloy is not normally used at temperatures where the creep-rupture properties are design factors.

The superior feature of the Incoloy 825 is its high corrosion resistance. In both reducing and oxidizing environments, Incoloy 825 is resistant to general corrosion, pitting, gap corrosion, intergranular corrosion and stress-corrosion cracking. Incoloy 825 is particularly resistant; sulfuric acid, phosphoric acid, sulfur-containing flue gas and sea water.

Incoloy 825 has a hot working range of 1600 – 2150 ° F (870 – 1180 ° C). For the best corrosion resistance, the final hot work must be carried out at temperatures of 1600-1800 ° F (870 and 980 ° C). You can learn.

INCOLOY 825 STANDARD AND NORMS

Incoloy 825 is designated UNS N08825 / 2.4858. Incoloy 825 is available as pipe, pipe, sheet, strip, sheet, round bar, flat bar, forging and wire.

Rod, Rod, Wire and Forged Stocks: BS 3076NA16, ASTM B 425, ASTM B 564, ASME SB 425, ASME SB 564, ASME Code Pouch N-572, DIN 17752, DIN 17753, DIN 17754, VdTÜV 432, ISO 9723, ISO 9724, ISO 9725

Plate, Sheet and Strip: BS 3072NA16, BS 3073NA16, ASTM B 424, ASTM B 906, ASME SB 424, ASME SB 906, DIN 17750, VdTÜV 432, ISO 6208

Pipe and Tube: BS 3074NA16, 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, ASME Code Sleeve 1936, DIN 17751, VdTÜV 432, ISO 6207

Other: ASTM B 366, ASME SB 366, DIN 17744