Alloy 722，Inconel 722 Other/Similar Specs，UNS N07722，EFORU

British Specs:，American Specs:AMS 5541 Sheet and Strip AMS 5714 Bar and Forgings，German Specs:

### **Product Introduction: Alloy 722 / Inconel 722 - Other Product Forms & Specifications (UNS N07722)** #### **Overview** **Alloy 722** (commercially known as **Inconel® 722**) encompasses a diverse range of specialized product forms beyond standard bars, sheets, and forgings. These "other" specifications include customized shapes, semi-finished products, and specialized configurations tailored for specific industrial applications. These variants maintain the alloy's fundamental characteristics - exceptional high-temperature strength up to 815°C (1500°F), outstanding corrosion resistance, and excellent fabricability - while offering unique advantages for specialized applications in aerospace, energy, and chemical processing industries. The versatility of Alloy 722 allows for numerous specialized product forms, each engineered to meet specific performance requirements while maintaining the alloy's signature precipitation-hardening capability through gamma prime [γ'] phase formation. --- #### **Chemical Composition** The chemical composition remains consistent across all special product forms: | Element | Content (%) | | :--- | :--- | | **Nickel (Ni)** | 45.0 - 50.0 | | **Chromium (Cr)** | 14.0 - 17.0 | | **Iron (Fe)** | Balance | | **Molybdenum (Mo)** | 6.0 - 8.0 | | **Niobium (Nb)** | 1.5 - 2.5 | | **Titanium (Ti)** | 2.0 - 3.0 | | **Aluminum (Al)** | 1.0 - 1.8 | | **Cobalt (Co)** | ≤ 1.00 | | **Carbon (C)** | ≤ 0.08 | | **Manganese (Mn)** | ≤ 0.50 | | **Silicon (Si)** | ≤ 0.50 | | **Sulfur (S)** | ≤ 0.015 | | **Copper (Cu)** | ≤ 0.30 | | **Boron (B)** | 0.003 - 0.010 | --- #### **Physical Properties** Consistent physical properties across all product forms: | Property | Metric Value | Imperial Value | | :--- | :--- | :--- | | **Density** | 8.10 g/cm³ | 0.292 lb/in³ | | **Melting Range** | 1350 - 1400 °C | 2460 - 2550 °F | | **Specific Heat (20°C)** | 440 J/kg·K | 0.105 Btu/lb·°F | | **Thermal Conductivity (20°C)** | 12.0 W/m·K | 83.3 Btu·in/hr·ft²·°F | | **Thermal Expansion Coefficient (20-100°C)** | 12.5 μm/m·°C | 6.9 μin/in·°F | | **Modulus of Elasticity** | 210 GPa | 30.5 x 10⁶ psi | --- #### **Specialized Product Forms & Applications** **1. Custom Extrusions** * **Forms:** Complex cross-sectional profiles, structural shapes, channels * **Applications:** Airframe components, heat exchanger parts, structural supports * **Standards:** ASTM B864, Customer-specific specifications * **Features:** Consistent grain flow, improved mechanical properties **2. Billets & Blooms** * **Forms:** Semi-finished products for further processing * **Applications:** Forging stock, remelting electrodes, machining blanks * **Standards:** ASTM B637, AMS 7858 * **Features:** Uniform microstructure, optimized for subsequent processing **3. Precision Castings** * **Forms:** Investment cast components, lost-wax castings * **Applications:** Turbine blades, nozzle guides, complex housings * **Standards:** AMS 5383, ASTM A494 * **Features:** Complex geometries, reduced machining requirements **4. Powder Metallurgy Products** * **Forms:** Metal powder for additive manufacturing, hot isostatic pressing * **Applications:** 3D printed components, HIP consolidated parts * **Standards:** ASTM F3055, AMS 4999 * **Features:** Fine microstructure, isotropic properties **5. Clad Products** * **Forms:** Explosion-bonded clad plates, roll-bonded clad sheets * **Applications:** Pressure vessels, chemical reactors, transition joints * **Standards:** ASTM B898, ASME SA264 * **Features:** Cost-effective corrosion protection **6. Special Fasteners** * **Forms:** Custom bolts, nuts, washers, special threaded components * **Applications:** High-temperature bolting, nuclear applications * **Standards:** ASTM F593, NAS, MIL specifications * **Features:** High strength at elevated temperatures --- #### **International Standards** Comprehensive standards covering specialized product forms: **ASTM Standards:** * **ASTM B446:** Welded Nickel-Alloy Pipe and Tube * **ASTM B472:** Nickel Alloy Billets and Bars for Reforging * **ASTM B804:** UNS N07718 Welded Pipe for Corrosive Service **Aerospace Standards:** * **AMS 5383:** Investment Castings * **AMS 5599:** Welding Wire * **AMS 5665:** Forging Stock **International Standards:** * **ISO 9724:** Nickel Alloy Forgings * **DIN 17742:** Nickel Alloy Castings * **JIS H4551:** Nickel-Chromium Alloy Plates --- #### **Special Applications** **Additive Manufacturing:** * **Forms:** Powder for SLM, EBM, DED processes * **Applications:** Complex cooling channels, lightweight aerospace structures * **Advantages:** Design freedom, reduced material waste * **Standards:** ASTM F3055, AMS 4999 **Thermal Spray Powders:** * **Forms:** Spherical powder for coating applications * **Applications:** Wear-resistant coatings, corrosion protection * **Standards:** ASTM F3056 * **Features:** Uniform particle size distribution **Composite Materials:** * **Forms:** Metal matrix composites, reinforced structures * **Applications:** High-stiffness components, specialized wear parts * **Features:** Enhanced specific strength and stiffness **Special Wire Forms:** * **Forms:** Welding wire, spring wire, fastener wire * **Applications:** High-temperature springs, welding consumables * **Standards:** AWS A5.14, AMS 5832 --- #### **Key Advantages of Specialized Forms** * **Design Flexibility:** Custom shapes and configurations for specific applications * **Cost Efficiency:** Reduced machining and material waste * **Performance Optimization:** Tailored microstructures and properties * **Manufacturing Efficiency:** Near-net-shape production capabilities * **Quality Consistency:** Controlled processes ensuring reliability * **Technical Support:** Comprehensive engineering and processing guidance **Quality Assurance Requirements:** * **Material Traceability:** Complete documentation from melt to final product * **Non-Destructive Testing:** UT, RT, PT, MT as required * **Metallurgical Analysis:** Grain size, phase identification, inclusion rating * **Performance Testing:** Stress rupture, creep, fatigue testing **Note:** *Inconel® is a registered trademark of Special Metals Corporation. These specialized product forms often require customized heat treatments, specific quality control protocols, and specialized processing expertise. Manufacturers typically provide detailed technical data sheets and processing recommendations for each specific product form and application requirement. Consultation with materials engineers is recommended for optimal selection and application of these specialized product forms.*

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 1803 gallon liquid totes Special package is available on request.