ASTM B423 UNS N08825 Incoloy 825 Nickel Alloy Steel Tube Large OD, Resists High Temp,High Conc. Acid
Price:
NEGOTIABLE
MOQ:
100KGS
Delivery Time:
20-80 Days
Brand:
YUHONG
Product Description
ASTM B423 UNS N08825 Incoloy 825 Nickel Alloy Steel Tube Large OD, Resists High Temp,High Conc. Acid
ASTM B423 UNS N08825 tube is a seamless tube made of a nickel-iron-chromium-based austenitic alloy. Tubes manufactured according to this standard are widely used in petrochemical, marine engineering, and nuclear power industries.
The commercial grade is Incoloy 825. It is a nickel-based alloy specifically designed for extremely corrosive environments, exhibiting excellent resistance to stress corrosion cracking by sulfuric acid, phosphoric acid, and chloride ions, and performing exceptionally well in high-temperature, high-concentration acid, and chloride-containing media.
| Chemical Composition (Ladle Analysis) | |
| Element | Composition (wt%) |
| Nickel (Ni) | 38.0 – 46.0 |
| Iron (Fe) | ≥ 22.0 (balance) |
| Chromium (Cr) | 19.5 – 23.5 |
| Molybdenum (Mo) | 2.5 – 3.5 |
| Copper (Cu) | 1.5 – 3.0 |
| Titanium (Ti) | 0.6 – 1.2 |
| Carbon (C) | ≤ 0.05 |
| Manganese (Mn) | ≤ 1.00 |
| Silicon (Si) | ≤ 0.50 |
| Phosphorus (P) | ≤ 0.030 |
| Sulfur (S) | ≤ 0.030 |
| Mechanical Properties (Seamless Pipe, Solution Annealed) | |||
| Property | Cold Finished | Hot Finished | Requirement Min. |
| Tensile Strength, min | 586 MPa (85 ksi) | 517 MPa (75 ksi) | 586 MPa (85 ksi) |
| Yield Strength (0.2% offset), min | 241 MPa (35 ksi) | 172 MPa (25 ksi) | 241 MPa (35 ksi) |
| Elongation (in 2 in / 50 mm), min | 30% | 30% | 30% |
| Hardness (Rockwell B), max | 90 HRB | 90 HRB | 90 HRB |
| Physical Properties (Typical Values) | |
| Property | Value |
| Density | 8.14 g/cm³ (0.294 lb/in³) |
| Melting Range | 1370 – 1400 °C (2500 – 2550 °F) |
| Specific Heat Capacity (20 °C) | 440 J/(kg·K) (0.105 Btu/(lb·°F)) |
| Thermal Conductivity (20 °C) | 10.8 – 11.0 W/(m·K) (75 Btu·in/(ft²·h·°F)) |
| Electrical Resistivity (20 °C) | 112 – 113 μΩ·cm |
| Modulus of Elasticity (20 °C) | 195 GPa (28.3 × 10³ ksi) |
| Modulus of Rigidity (20 °C) | 76 GPa (11.0 × 10³ ksi) |
Application
- Petrochemicals: Residue hydrogenation unit pipelines, sour gas pipelines, offshore platform oil and gas transportation
- Chemical processing: Sulfuric acid/phosphoric acid production equipment, acid washing heating pipes, reactor pipelines
- Marine engineering: Seawater cooling heat exchangers, seawater desalination plants, subsea pipelines
- Nuclear power: Nuclear fuel reprocessing equipment; Resistant to various corrosive media combinations
- Oil and gas extraction: Downhole control pipelines, chemical injection pipelines, sour gas well equipment
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Company
Yuhong Group Co.,Ltd
Location
20TH FLOOR,NO.1 NEW WORLD BUILDING ,NO.1018 MINAN ROAD,YINZHOU DISTRICT, NINGBO CITY, ZHEJIANG PROVINCE, CHINA
Contact Person
Jikin Cai