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Alloy 825 (UNS N08825) is an austenitic nickel-iron-chromium alloy with added molybdenum, copper and titanium. It was developed to provide special resistance to many corrosive environments, including oxidizing and reducing.
The nickel content of alloy 825 makes it resistant to chloride stress corrosion cracking, and combined with molybdenum and copper, compared with traditional austenitic stainless steel, it provides a greatly improved corrosion resistance in a reducing environment. The chromium and molybdenum content of Alloy 825 provides resistance to chloride pitting and resistance to various oxidizing environments. The addition of titanium stabilizes the sensitivity of the alloy in the welding state. This stability allows Alloy 825 to resist intergranular corrosion when exposed to a temperature range that would normally sensitize unstabilized stainless steel.
Alloy 825 nickel alloy seamless pipe can resist corrosion in a variety of process environments, including sulfuric acid, sulfurous acid, phosphoric acid, nitric acid, hydrofluoric acid, organic acids and alkalis, such as sodium hydroxide or potassium hydroxide, and acidic chlorine solutions.
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Chemical Composition: |
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|
Element |
825 |
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Ni |
38.0-46.0 |
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Cr |
19.5-23.5 |
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Mo |
2.5-3.5 |
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Iron |
22.0min |
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Mn(max) |
1.0 |
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C(max) |
0.05 |
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Si(max) |
0.5 |
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Al(max) |
0.2 |
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S(max) |
0.03 |
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Ti |
0.6-1.2 |
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Cu |
1.5-3.0 |
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Mechanical Properties as per ASTM B423 |
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Yield strength(0.2% offset) |
Tensile Strength |
Elongation in 2inch |
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Mpa(min) |
Mpa(min) |
%(min) |
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UNS N08825 |
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|
|
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Hot finished annealed |
172 |
517 |
30 |
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Cold worked annealed |
241 |
586 |
30 |
Shanghai Toko Technology Co.,ltd. is professional 825(UNS N08825) Nickel Alloy Seamless Continuous Coiled Pipe/Tube Suppliers and 825(UNS N08825) Nickel Alloy Seamless Continuous Coiled Pipe/Tube Factory, located in Shanghai, China, and has been worked in the field of industrial piping for 11 years. We are committed to manufacturing and exporting stainless steel seamless pipe, stainless steel welded pipes, stainless steel fittings and flanges, nickel alloy products, Titanium seamless and welded tubes, etc. Our factories are all ISO&PED certificated, and the products can be produced in standard ASTM, JIS, DIN, EN, GOST, etc. Our products are widely used in the Oil and Gas, Petrochemical, Sugar Refining, Water Process, Desalination, Geothermal industry etc. We exported to dozens of countries and regions such as USA, Canada, Japan, Germany, France, Korea, Turkey ect.
Our Vision: To be an excellent supplier of global industrial piping system solutions.
Our Mission: To help global industrial pipeline construction with the products made in China.
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