Aperam Superimphy 90 Bar-Corrosion，1

### **Product Introduction: Aperam Superimphy® 90 Bar - Corrosion Resistant Nickel Alloy** **Overview** Aperam Superimphy® 90 Bar is a high-performance nickel-chromium-molybdenum alloy designed to deliver exceptional corrosion resistance in extremely aggressive environments. This advanced super austenitic stainless steel offers superior protection against pitting, crevice corrosion, and stress corrosion cracking, particularly in chloride-containing environments. With its optimized chemical composition, Superimphy 90 Bar maintains excellent mechanical properties while providing outstanding resistance to both oxidizing and reducing media, making it an ideal choice for the most demanding applications in chemical processing, offshore, and marine industries. --- #### **Chemical Composition (Typical % by Weight)** | Element | Content (%) | Role & Benefit | |---------|-------------|---------------| | **Nickel (Ni)** | 24.0 - 26.0 | Austenite stability and corrosion resistance | | **Chromium (Cr)** | 19.0 - 21.0 | Oxidation resistance and passive film formation | | **Molybdenum (Mo)** | 6.0 - 7.0 | Pitting and crevice corrosion resistance | | **Nitrogen (N)** | 0.18 - 0.25 | Strength enhancement and corrosion resistance | | **Manganese (Mn)** | 4.0 - 6.0 | Austenite stability and process control | | **Copper (Cu)** | 0.50 - 1.50 | Sulfuric acid resistance | | **Iron (Fe)** | Balance | Matrix element | | **Carbon (C)** | ≤ 0.020 | Minimized for intergranular corrosion resistance | | **Silicon (Si)** | ≤ 0.50 | Process control element | | **Phosphorus (P)** | ≤ 0.030 | Controlled residual | | **Sulfur (S)** | ≤ 0.010 | Minimized for improved properties | *Note: Superimphy is a registered trademark of Aperam* --- #### **Physical & Mechanical Properties** **Physical Properties:** - Density: 8.0 g/cm³ (0.289 lb/in³) - Melting Range: 1370-1400°C (2498-2552°F) - Thermal Expansion: 15.5 μm/m·°C @ 20-100°C - Thermal Conductivity: 12.5 W/m·K @ 100°C - Modulus of Elasticity: 200 GPa (29.0 x 10^6 psi) - Magnetic Permeability: Typically <1.05 **Mechanical Properties (Room Temperature):** - Tensile Strength: 750-950 MPa (109-138 ksi) - Yield Strength (0.2% Offset): 430 MPa (62 ksi) minimum - Elongation: 40% minimum - Hardness: HRB ≤ 100 - Impact Strength: ≥ 100 J at 20°C --- #### **International Standards and Specifications** - **ASTM B625:** UNS N08904 Plate, Sheet, and Strip - **ASTM B673:** UNS N08904 Welded Pipe - **ASTM B674:** UNS N08904 Welded Tube - **ASME SB-625/SB-673/SB-674:** Pressure vessel applications - **EN 1.4539:** European material designation - **NACE MR0175/ISO 15156:** Sour service compliance - **PED 2014/68/EU:** Pressure equipment directive - **DNV GL:** Offshore and marine certification --- #### **Product Applications** **Chemical Processing Industry:** - Sulfuric acid and phosphoric acid equipment - Heat exchangers and condensers - Reaction vessels and storage tanks - Piping systems and valves **Offshore and Marine:** - Seawater piping systems - Heat exchangers and cooling systems - Offshore platform equipment - Marine exhaust systems **Pollution Control:** - Flue gas desulfurization systems - Waste water treatment equipment - Scrubbers and absorption towers - Chemical waste handling systems **Pulp and Paper Industry:** - Bleach plants and chemical recovery systems - Digester and evaporator components - Process piping and storage vessels --- #### **Key Advantages** 1. **Excellent Corrosion Resistance**: Superior performance in acidic and chloride-containing environments 2. **High Pitting Resistance Equivalent (PRE ≥ 36)**: Outstanding resistance to localized corrosion 3. **Stress Corrosion Cracking Resistance**: Excellent performance in chloride-rich environments 4. **Good Mechanical Properties**: High strength combined with excellent toughness 5. **Excellent Fabricability**: Good welding and forming characteristics 6. **Cost-Effective Solution**: Optimal performance-to-cost ratio for demanding applications 7. **Proven Reliability**: Extensive track record in critical applications worldwide --- **Conclusion** Aperam Superimphy® 90 Bar represents a premium corrosion-resistant alloy solution for the most challenging industrial environments. Its carefully balanced chemical composition, featuring high nickel, chromium, and molybdenum content with nitrogen strengthening, provides exceptional resistance to a wide range of corrosive media. The alloy's excellent combination of mechanical properties, corrosion resistance, and fabricability makes it a preferred choice for critical applications in chemical processing, offshore, marine, and pollution control industries. Supported by comprehensive international standards and quality certifications, Superimphy 90 Bar delivers reliable, long-term performance in aggressive operating conditions where material failure is not an option.

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 3419 gallon liquid totes Special package is available on request.