EN 1092 Class 150 Corrosion Resistant Alloy 625 Forged Flange
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Product Description
Alloy625 EN 1092 Class 150 Forged Flange
Alloy 625, more commonly known as Inconel 625 (UNS N06625, W.Nr. 2.4856), is a nickel-based superalloy designed for excellent strength and corrosion resistance, especially in harsh environments including high temperatures, seawater, and acidic conditions.
Chemical Composition
The chemical composition is typically given in weight percent. Exact values can vary slightly by standard (ASTM, AMS, ISO) and producer, but the usual specification range is:
| Element | Composition Range |
|---|---|
| Nickel (Ni) | Balance (usually around 58–63%) |
| Chromium (Cr) | 20.0 – 23.0% |
| Molybdenum (Mo) | 8.0 – 10.0% |
| Niobium (Nb) + Tantalum (Ta) | 3.15 – 4.15% |
Smaller Additions and Limits
- Iron (Fe): up to about 5.0% (often lower in practice)
- Cobalt (Co): up to 1.0% max
- Manganese (Mn): up to 0.5% max
- Silicon (Si): up to 0.5% max
- Aluminum (Al): up to 0.4% max
- Titanium (Ti): up to 0.4% max
Impurity Limits
- Carbon (C): ≤ 0.10% (many specs tighten this, e.g., ≤ 0.05%)
- Phosphorus (P): ≤ 0.015%
- Sulfur (S): ≤ 0.015%
Composition Significance
- High Ni + Cr: Excellent oxidation and corrosion resistance, especially at high temperatures
- Mo + Nb: Solid-solution strengthening, providing high strength without heat treatment; boosts resistance to pitting and crevice corrosion in chloride and acidic environments
- Very low C, P, S: Improves weldability and resistance to intergranular corrosion
Important Note: For project-specific requirements (pressure vessels, aerospace parts, welding procedures), always verify the exact composition against the specific standard or material test certificate (MTC) from your supplier, as different product forms (bar, plate, weld wire) may follow slightly different specifications.
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Company
BEST PIPELINE EQUIPMENT CO.,LTD
Location
China Factory : Suzhou Industrial Park, JiangSu Province,China
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