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Product Specification
| High Light | Super Duplex A182 F55 Welding Neck Flange ，Corrosion Resistant Forged Steel Flange ，High Pressure Environment Super Duplex Flange | ||
SUPER DUPLEX A182 F55 is a super duplex stainless steel grade primarily used for flanges, fittings, and forged components in highly corrosive and high-pressure environments. Its applications include offshore operations, oil & gas facilities, desalination plants, and chemical processing plants. The material's exceptional strength and corrosion resistance are derived from its precisely balanced chemical composition.
The following table presents the typical chemical composition ranges for ASTM A182 F55 / UNS S32760 (Super Duplex F55). Exact values may vary slightly by manufacturer, but these ranges represent standard specifications:
| Element | Composition Range | Function & Benefits |
|---|---|---|
| Carbon (C) | max 0.03% | Low carbon content prevents carbide precipitation and maintains corrosion resistance |
| Chromium (Cr) | 24.0 – 26.0% | Provides general corrosion resistance and forms a stable passive film |
| Nickel (Ni) | 6.0 – 8.0% | Stabilizes the austenitic phase and improves toughness and stress corrosion cracking resistance |
| Molybdenum (Mo) | 3.0 – 4.0% | Significantly enhances resistance to pitting and crevice corrosion in chloride-containing environments |
| Tungsten (W) | 0.5 – 1.0% | Further improves pitting and crevice corrosion resistance in aggressive chloride conditions |
| Copper (Cu) | 0.5 – 1.0% | Enhances resistance to certain non-oxidizing acids like sulfuric acid environments |
| Manganese (Mn) | max 1.00% | Used for deoxidation and steelmaking processes |
| Silicon (Si) | max 1.00% | Used for deoxidation; controlled to prevent toughness reduction |
| Nitrogen (N) | 0.20 – 0.30% | Key strengthening element that increases yield strength and improves pitting/crevice corrosion resistance |
| Phosphorus (P) | max 0.030% | Impurity restricted to maintain toughness and corrosion resistance |
| Sulfur (S) | max 0.010% | Impurity restricted to maintain toughness and corrosion resistance |
| Iron (Fe) | Balance | Base element comprising the remainder of the composition |
For project-specific requirements, always consult:
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Agent,Importer,Exporter,Trading Company,Seller,Other
Year Established:
2010
Total Annual:
1000000-5000000
Employee Number:
116~209
Ecer Certification：
Verified Supplier
Best Alloy Engineering Alloy Pipe as s a reference point for excellence in the manufacture and distribution of fittings, piping, bends, forged flanges , clad products and specialties for the upstream, midstream and downstream sectors of oil & gas, thermal and nuclear power generation. The C... Best Alloy Engineering Alloy Pipe as s a reference point for excellence in the manufacture and distribution of fittings, piping, bends, forged flanges , clad products and specialties for the upstream, midstream and downstream sectors of oil & gas, thermal and nuclear power generation. The C...
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