Yuhong Group Co.,Ltd
| Payment Terms | T/T, L/C |
| Supply Ability | According to Clients' Requirement |
| Delivery Time | 30 - 60 Work Days |
| Packaging Details | Plywood Case |
| Material | UNS N08825, N08221 |
| Specification | ASTM B423, ASME SB423 |
| OD | 1/4"-48" |
| Length | 6 Meters Or Customized |
| Pipe End | Plain End, Bevelled End |
| Applications | Heat Exchanger, Boiler, Oil and Gas Plant, Petrochemical Industry, Water Treatment, Petroleum, Condenser, Etc. |
| Brand Name | YUHONG |
| Model Number | UNS N08825, N08221 |
| Certification | ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2015 |
| Place of Origin | China |
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Product Specification
| Payment Terms | T/T, L/C | Supply Ability | According to Clients' Requirement |
| Delivery Time | 30 - 60 Work Days | Packaging Details | Plywood Case |
| Material | UNS N08825, N08221 | Specification | ASTM B423, ASME SB423 |
| OD | 1/4"-48" | Length | 6 Meters Or Customized |
| Pipe End | Plain End, Bevelled End | Applications | Heat Exchanger, Boiler, Oil and Gas Plant, Petrochemical Industry, Water Treatment, Petroleum, Condenser, Etc. |
| Brand Name | YUHONG | Model Number | UNS N08825, N08221 |
| Certification | ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2015 | Place of Origin | China |
| High Light | ASTM B423 nickel alloy pipe ，UNS N08825 seamless pipe ，nickel alloy pipe for petrochemical | ||
ASTM B423 UNS N08825 Nickel Alloy Seamless Pipe For Petrochemical Industry
ASTM B423 UNS N08825 refers to a seamless pipe manufactured from a nickel-iron-chromium alloy with additions of molybdenum, copper, and titanium (UNS N08825), produced in accordance with the ASTM B423 / ASME SB423 standard. This alloy is commonly known by the trademark Incoloy 825. This nickel alloy seamless pipe is designed for exceptional resistance to reducing and oxidizing acids, stress-corrosion cracking, and pitting, especially in aggressive environments like sulfuric and phosphoric acids. It’s available in a wide range of sizes, finishes, and delivery conditions, it serves critical roles in chemical, petrochemical, marine, and pollution control industries. YUHONG GROUP is professional in manufacturing nickel alloy pipes with 35 years’ experience. Our nickel alloy pipe can be seamless or welded. If you have demand of our pipes, just feel free to contact us.
Chemical Composition Table (ASTM B423 / UNS N08825):
| Element | Weight % (min) | Weight % (max) |
| Nickel (Ni) | 38.0 | 46.0 |
| Chromium (Cr) | 19.5 | 23.5 |
| Iron (Fe) | 22.0 (min) | Balance |
| Molybdenum (Mo) | 2.5 | 3.5 |
| Copper (Cu) | 1.5 | 3.0 |
| Titanium (Ti) | 0.6 | 1.2 |
| Carbon (C) | – | 0.05 |
| Manganese (Mn) | – | 1.0 |
| Silicon (Si) | – | 0.5 |
| Sulfur (S) | – | 0.03 |
| Phosphorus (P) | – | 0.03 |
| Aluminum (Al) | – | 0.2 |
Key Advantages and Features:
Different Surface Finish:
| Finish Type | Description | Typical Application |
| Pickled (Pickled & Passivated) | Oxide scale removed by acid bath; passivated surface enhances corrosion resistance. | Standard for petrochemical service; ready for installation. |
| Bright Annealed | Annealed in controlled atmosphere; smooth, oxide-free, shiny surface. | High-purity applications, food / pharma, but also used for critical clean services. |
| Mechanically Polished | Abrasive finishing to certain Ra (e.g., 0.4μm, 0.8μm). | Internal surface for low friction or cleanability; sometimes used for sour gas lines to avoid deposit buildup. |
| Sand / Bead Blasted | Matte, uniform satin finish. | For aesthetic or coating preparation. |
Different Applications:
| Industry | Specific Uses |
| Chemical Processing | Heat exchangers, evaporators, reaction vessels, piping for sulfuric/phosphoric acid production |
| Oil & Gas | Sour service pipelines, downhole tubing, wellhead equipment, umbilicals |
| Pollution Control | Flue gas desulfurization scrubbers, stack liners, ducting |
| Marine / Offshore | Seawater cooling lines, firewater systems, ballast piping |
| Nuclear Power | Steam generator tubing, spent fuel reprocessing |
| Pharmaceutical / Food | Process lines requiring high purity and corrosion resistance to organic acids |
| Aerospace | Fuel and hydraulic lines exposed to corrosive fluids |
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Importer,Exporter,Trading Company,Seller,Other
Year Established:
2007
Total Annual:
50M-70M
Employee Number:
50~850
Ecer Certification：
Verified Supplier
Yuhong Group is one of the large scale group company in China, more than 35 years experience in the international market, providing high-quality services to over 3000 customers, end user which like Aramco, Petrobras, Pemex, Petronas, Ecopetro, Petroecuador, …. till now Yuhong Grou... Yuhong Group is one of the large scale group company in China, more than 35 years experience in the international market, providing high-quality services to over 3000 customers, end user which like Aramco, Petrobras, Pemex, Petronas, Ecopetro, Petroecuador, …. till now Yuhong Grou...
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