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Nickel-Based Alloy Introduction and Incoloy 825 Pipe Fittings
1. Nickel-Based Alloy Overview
Incoloy Alloy: An iron-chromium series nickel-based
corrosion-resistant alloy. It boasts excellent corrosion resistance
in both reducing and oxidizing acids, as well as robust resilience
against stress corrosion cracking, pitting, and crevice corrosion.
In the fields of chemistry, petrochemicals, nuclear industry, and
rare metal extraction, commonly used variants include Incoloy 800,
Incoloy 825, and Incoloy 926.
Inconel Alloy: A nickel-chromium-iron solution-strengthened alloy
with remarkable high-temperature corrosion and oxidation
resistance. Additionally, it possesses superior cold and hot
processing and welding capabilities. Widely used in aviation,
chemical, paper industry, and various other sectors. Common grades
are Inconel 600, Inconel 601, Inconel 625, Inconel 617, Inconel
718, and Inconel X-750.
Hastelloy Alloy: A nickel-based corrosion-resistant and
high-temperature alloy. Primarily divided into nickel-chromium and
nickel-chromium-molybdenum alloys. It offers excellent corrosion
resistance and thermal stability, commonly used in aviation,
petrochemical, and chemical industries. Common grades include
Hastelloy C276, Hastelloy C22, Hastelloy B2, Hastelloy B3,
Hastelloy C4, Haynes 230, and Haynes 188.
2. Incoloy 825 Pipe Fittings
Material: Conforms to ASTM B366 / B366M - 20, the standard
specification for wrought nickel and nickel alloy fittings.
Incoloy 825: A nickel-iron-chromium alloy with the addition of
molybdenum, copper, and titanium. Its chemical composition is
specifically formulated to provide superior resistance to numerous
corrosive environments. While similar to Alloy 800, Incoloy 825
offers enhanced resistance to aqueous corrosion.
Equal standards
| STANDARD | WERKSTOFF NR. | UNS | AFNOR | GOST | JIS | BS | EN |
| Incoloy | 2.4858 | N08825 | NC 21 FeDU | XH38BT | NCF 825 | NA 16 | NiCr21Mo |
Chemical composition
| Grade | Cr | Fe | Ni | C | Mn | Cu | Si | S |
| Incoloy 825 | 19.5 - 23.5 | 1.0 max | 38.0 - 46.0 | 0.05 max | 1.0 max | 1.5 - 3.0 | 0.5 max | 0.03 max |
Mechanical properties
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 8.47 g/cm3 | 1413 °C (2580 °F) | Psi - 95,000 , MPa - 655 | Psi - 45,000 , MPa - 310 | 40 % |
Material Mark :ASTM B366 WPNICMC UNS N08825
Standard : ANSI/ASME B16.9, B16.28, MSS-SP-43.
Size : 1/2''~48''(Seamless);16''~110''(Welded)
Wall Thickness: SCH5-STD-SCH XXS
3. Application area
Our company can produce carbon steel, stainless steel, and alloy steel pipe fittings according to standards such as ASME/ANSI, JIS, DIN, ISO etc. The varieties include equal diameter tees, reducing tees, tees, elbows, cross, concentric reducer, eccentric reducer etc. We provide the very best quality pipe and fittings, prompt delivery and reliable services at competitive prices.
