Manufacturer, Supplier, Exporter & Stockiest of ASTM B423 INCONEL 825 TUBES.
Inconel 825 ASTM B423/ ASME B423 Tubes (UNS N08825)
Jaiti Steel is a reputable manufacturer, exporter, and stockiest of a wide range of steel pipes and tubes. With a strong commitment to quality and customer satisfaction, we have established ourselves as a trusted name in the steel industry. Our company is dedicated to providing reliable and durable steel solutions to meet the diverse needs of our clients.
We prioritize quality at every stage of our manufacturing process. Jaiti Steel adheres to stringent quality control measures to ensure that all our products meet international standards and specifications. Our team of skilled professionals monitors each production phase, from sourcing raw materials to the final inspection, to guarantee the highest level of quality.
UNS No: UNS N08825
Werkstoff Nr: 2.4858
The above names are trade names and/or trademarks of specific manufactures including Special Metal Corporation. Prosaic Steel & Alloy is not affiliated with any manufacturer(s). Orders will be filled to meet specifications from any available source(s). Names are listed solely for reference to help identify products consistent with listed specificationsto help identify products consistent with listed specifications. Specifications – Incoloy 825 Tubes- UNS N08825
Product Range – Seamless Tubes6 mm OD x 0.7 mm to 50.8 mm OD x 3 mm thk.
Specifications – B 163 / B 423
Finish Conditions– Cold Drawn Solution Annealed & Pickled / Cold Drawn Bright annealed / NACE MRO 175
Incoloy alloy 825 is a nickel-iron-chromium alloy with additions of copper, molybdenum and titanium. The alloy’s chemical composition 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 nitrates, nitric acid and oxidizing salts. 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.
The outstanding property of Incoloy 825 is its corrosion resistance. In reducing & oxidising conditions, Incoloy 825 resists general corrosion, pitting & crevice corrosion, intergranular corrosion and stress corrosion cracking. It is particularly useful in sulphuric & phosphoric acids, sulphur containing flue gases, sour gas and oil wells and sea water.
Incoloy 825 is approved for pressure vessel operating temperatures up to 525°C (AS1210, AS4041), 538°C (ASME Boiler & Pressure Vessel Code, Sections I, III, VIII, IX, Cases 1936, N-188). Brittle phases may form in alloy 825 at temperatures above ~ 540°C, so it is not normally used at these temperatures, where creep-rupture properties would be design factors.
Tensile Properties of Incoloy Alloy 825
Form | Condition | 0.2% Proof Stress MPa | Tensile Strength MPa | Elong % | ||||
| Tube | Annealed | 440 | 770 | 35 | ||||
| Tube | Cold drawn | 880 | 1000 | 15 |
Chemical Composition(%, max)
Element | % | Element | % |
| Nickel | 38.0 – 46.0 | Carbon | 0.05 max |
| Chromium | 19.5 – 23.5 | Manganese | 1.0 max |
| Molybdenum | 2.5 – 3.5 | Sulfur | 0.03 max |
| Copper | 1.5 – 3.0 | Silicon | 0.5 max |
| Titanium | 0.6 – 1.2 | Aluminium | 0.2 max |
| Iron | 22.0 min (~33%) |
Corrosion Resistance
The outstanding property of Incoloy 825 is its corrosion resistance. In reducing & oxidising conditions, Incoloy 825 resists general corrosion, pitting & crevice corrosion, intergranular corrosion and stress corrosion cracking. It is particularly useful in sulphuric & phosphoric acids, sulphur containing flue gases, sour gas and oil wells and sea water.
Incoloy 825 can be readily hot or cold worked. Hot working should be in the range 870 – 1180°C, finishing at 870 – 980°C. For maximum corrosion resistance hot worked parts should be stabilise annealed before use. The alloy is easier to cold form than stainless steels.
Heat Treatment
Incoloy 825 is stabilise annealed at 940°C. The softest structure is obtained at 980°C. Sections heavier than sheet, strip and wire should be quenched to avoid sensitisation.