Contact Now
Please Leave Us A Message
Privacy statement: Your privacy is very important to Us. Our company promises not to disclose your personal information to any external company with out your explicit permission.
Grupo de Produto
Enviar Inquérito
Tipo de pagamento: L/C,T/T
transporte: Ocean,Land,Air
$5-50 /Kilogram
marca: Yuhong
Seja Liga: É liga
Lugar De Origem: China
Serviço De Processamento: Dobra, Decoiling, Soldagem, Socos, Corte
Incoloy Tube ASTM B163 UNS NO8825 SMLS
Visão geral
Designated as UNS N08825 or DIN W.Nr. 2.4858, Incoloy 825 (also known as “Alloy 825”) is an iron-nickel-chromium alloy with additions of molybdenum, cooper and titanium. The molybdenum addition improves its resistance to pitting corrosion in aqueous corrosion application while copper content bestows resistance to sulfuric acid. Titanium is added for stabilization. The Alloy 825 has excellent resistance to both reducing and oxidizing acids, to stress-corrosion cracking, and to localized attack such as pitting and crevice corrosion. It is especially resistant to sulfuric and phosphoric acids. Incoloy 825 alloy is mainly used for chemical processing, petrochemical piping, pollution-control equipment, oil and gas well piping, nuclear fuel reprocessing, acid production, and pickling equipment.
Resistência à corrosão
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.
Fabricação
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.
Tratamento térmico
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.
Chemical Composition of Incoloy Alloy 825
Chemical composition of Incoloy Alloy 825 (ASTM B163 – Heat exchanger tube)
| 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%) |
Tensile Properties of Incoloy Alloy 825
Typical room temperature tensile properties (not for design. Consult the relevant material or product specification for design values)
| Form | Condition |
0.2% Proof Stress MPa |
Tensile Strength MPa |
Elong % |
| Tube | Annealed | 440 | 770 | 35 |
| Tube | Cold drawn | 880 | 1000 | 15 |
| Bar | Annealed | 325 | 690 | 45 |
| Plate | Annealed | 340 | 660 | 45 |
| Sheet | Annealed | 420 | 760 | 39 |
ASTM Product Specifications
ASTM specifications for Incoloy Alloy 825.
| Specification | Title |
| B163 | Seamless Nickel and Nickel Alloy Condenser and Heat-Exchanger Tubes |
| B423 | Nickel-Iron-Chromium-Molybdenum-Copper Alloy (UNS N08825 and N08221)* Seamless Pipe and Tube |
| B424 | Ni-Fe-Cr-Mo-Cu Alloy (UNS N08825 and UNS N08221)* Plate, Sheet, and Strip |
| B425 | Ni-Fe-Cr-Mo-Cu Alloy (UNS N08825) |
| B704 | Welded UNS N06625 and UNS N08825 Alloy Tubes |
| B705 | Nickel-Alloy (UNS N06625 and N08825) Welded Pipe |
| B751 | General Requirements for Nickel and Nickel Alloy Welded Tube |
Other international grades that are equivalent to Incoloy Alloy 825.
| Country | Body | Designation |
| USA | UNS | N08825 |
| France | AFNOR | NC 21 FeDU |
| GB | BS | NA 16 |
| Germany | DIN | NiCr21Mo |
| Germany | Werkstoff | Nr 2.4858 |
Applications of Incoloy 825
1. Sulphuric acid piping and vessels
2. Phosphoric acid evaporators
3. Pickling tank heaters, pickling tanks and equipment
4. Chemical process equipment
5. Propellor shafts
6. Tank trucks
7. Calorifiers
8. Electrostatic precipitator electrodes
9. Hot vessels for food, water and seawater,
10. Ammonium sulphate vessels
11. Expansion bellows
12. Marine exhaust systems
12. Power station ash hoppers
| Unidades de venda | : | Kilogram |
|---|---|---|
| Tipo de pacote | : | Caso de Plywooden |
| Exemplo de imagem | : |
|
Pacote: Caso de Plywooden
produtividade: 600 Tons per Month
transporte: Ocean,Land,Air
Lugar de origem: CHINA
Certificados : ABS, GL, DNV, NK, PED, AD2000, GOST9941-81
porta: Ningbo,Shanghai,Tianjin
Tipo de pagamento: L/C,T/T
Incoterm: FOB,CFR,CIF,EXW
Entrar em contato
If you have any questions our products or services,feel free to reach out to us.Provide unique experiences for everyone involved with a brand.we’ve got preferential price and best-quality products for you.
Privacy statement: Your privacy is very important to Us. Our company promises not to disclose your personal information to any external company with out your explicit permission.
Fill in more information so that we can get in touch with you faster
Privacy statement: Your privacy is very important to Us. Our company promises not to disclose your personal information to any external company with out your explicit permission.