Aperam Superimphy 22 Bar-Corrosion ，1

### **Product Introduction: Aperam Superimphy® 22 Bar - Corrosion Resistant Nickel Alloy** **Overview** Aperam Superimphy® 22 Bar is a premium nickel-chromium-molybdenum-tungsten alloy specifically engineered for exceptional corrosion resistance in severe environments. This alloy demonstrates outstanding performance across a wide range of corrosive media, including both oxidizing and reducing conditions. Particularly effective in chloride-containing environments, it offers superior resistance to pitting, crevice corrosion, and stress corrosion cracking, making it an ideal choice for demanding applications in chemical processing, pollution control, and industrial equipment. --- #### **Chemical Composition (Typical % by Weight)** | Element | Content (%) | Role & Benefit | |---------|-------------|---------------| | **Nickel (Ni)** | Balance | Matrix element providing corrosion resistance | | **Chromium (Cr)** | 20.0 - 22.5 | Oxidation resistance and passive film formation | | **Molybdenum (Mo)** | 12.5 - 14.5 | Resistance to reducing environments and pitting | | **Tungsten (W)** | 2.5 - 3.5 | Enhanced corrosion resistance and stability | | **Iron (Fe)** | 2.0 - 6.0 | Controlled for optimal performance | | **Manganese (Mn)** | ≤ 1.0 | Process control element | | **Silicon (Si)** | ≤ 0.08 | Maintains corrosion resistance | | **Vanadium (V)** | ≤ 0.35 | Trace element | | **Carbon (C)** | ≤ 0.015 | Minimized for intergranular corrosion resistance | | **Cobalt (Co)** | ≤ 2.5 | Controlled residual | *Note: Superimphy is a registered trademark of Aperam* --- #### **Physical & Mechanical Properties** **Physical Properties:** - Density: 8.69 g/cm³ (0.314 lb/in³) - Melting Range: 1325-1370°C (2417-2498°F) - Thermal Expansion: 11.5 μm/m·°C @ 20-100°C - Thermal Conductivity: 10.5 W/m·K @ 100°C - Modulus of Elasticity: 205 GPa (29.7 x 10^6 psi) **Mechanical Properties (Room Temperature):** - Tensile Strength: 690 MPa (100 ksi) minimum - Yield Strength (0.2% Offset): 315 MPa (46 ksi) minimum - Elongation: 40% minimum - Hardness: HRB ≤ 100 --- #### **International Standards and Specifications** - **ASTM B574:** Low-Carbon Nickel-Chromium-Molybdenum Alloy Bar - **ASTM B575:** Low-Carbon Nickel-Chromium-Molybdenum Alloy Plate - **ASME SB-574/SB-575:** Pressure vessel applications - **NACE MR0175/ISO 15156:** Sour service compliance - **EN 10204:** Material certification - **PED 2014/68/EU:** Pressure equipment directive --- #### **Product Applications** **Chemical Processing Industry:** - Reactors and pressure vessels - Heat exchangers and condensers - Pumps, valves, and fittings - Mixing tanks and agitators **Pollution Control:** - Flue gas desulfurization systems - Scrubbers and absorbers - Waste water treatment equipment - Chemical waste incinerators **Oil & Gas:** - Downhole components - Process piping systems - Offshore platform equipment - Sour service applications **Pharmaceutical & Food Processing:** - Process equipment requiring high purity - Critical component manufacturing --- #### **Key Advantages** 1. **Exceptional Corrosion Resistance**: Superior performance in wide range of corrosive media 2. **Excellent Localized Corrosion Resistance**: Outstanding resistance to pitting and crevice corrosion 3. **Stress Corrosion Cracking Resistance**: Reliable performance in chloride environments 4. **Versatile Application Range**: Suitable for both oxidizing and reducing conditions 5. **Good Fabricability**: Excellent welding and forming characteristics 6. **High Temperature Capability**: Maintains properties at elevated temperatures 7. **Non-Magnetic**: Suitable for sensitive applications --- **Conclusion** Aperam Superimphy® 22 Bar represents a superior corrosion-resistant nickel alloy solution for the most demanding industrial applications. Its optimized chemical composition, combining high levels of chromium, molybdenum, and tungsten, provides exceptional resistance to a broad spectrum of corrosive environments. The alloy's excellent mechanical properties, combined with its proven performance in aggressive chemical processing, pollution control, and oil & gas applications, make it a reliable choice for critical equipment where corrosion resistance and long-term durability are essential. Supported by comprehensive international standards and quality certifications, Superimphy 22 Bar delivers consistent performance and reliability in the world's most challenging operating conditions.

Packing of Standard Packing: Typical bulk packaging includes palletized plastic 5 gallon/25 kg. pails, fiber and steel drums to 1 ton super sacks in full container (FCL) or truck load (T/L) quantities. Research and sample quantities and hygroscopic, oxidizing or other air sensitive materials may be packaged under argon or vacuum. Solutions are packaged in polypropylene, plastic or glass jars up to palletized 3418 gallon liquid totes Special package is available on request.