Alloy 77，Nilomag 77 Plate，,E FORU

British Specs:，American Specs: AMS 6519 Bar, Tube, Forging，German Specs:

### **Product Introduction: Alloy 77 / Nilomag 77 Plate & Sheet** **Alloy 77** (commercially known as **Nilomag 77**) is a premier nickel-chromium-iron alloy engineered for exceptional resistance to oxidation, carburization, and thermal cycling in high-temperature environments. Available in plate and sheet form, this material provides the structural integrity and durability required for the most demanding furnace components and high-temperature systems. This datasheet provides detailed information on **Alloy 77 Plate**, a product form chosen for its robustness and performance in constructing critical high-temperature equipment. --- #### **1. Chemical Composition (Typical % by Weight)** The chemical composition is precisely controlled to deliver consistent high-temperature performance. | Element | Content (%) | | :--- | :--- | | Nickel (Ni) | Balance (~76.0 min) | | Chromium (Cr) | 14.0 - 17.0 | | Iron (Fe) | 6.0 - 10.0 | | Manganese (Mn) | 1.0 max | | Copper (Cu) | 0.20 max | | Silicon (Si) | 0.20 - 0.60 | | Carbon (C) | 0.10 max | | Sulfur (S) | 0.015 max | *Note: This composition aligns with international standards for plate, sheet, and strip products.* --- #### **2. Key Physical & Mechanical Properties** Alloy 77 Plate retains excellent strength and resists deformation under load at high temperatures. **Physical Properties:** * **Density:** 8.26 g/cm³ (0.298 lb/in³) * **Melting Range:** ~1371°C - 1427°C (~2500°F - 2600°F) * **Specific Heat (20°C):** 450 J/kg·K * **Thermal Conductivity:** 12.5 W/m·K (at 100°C) * **Mean Coefficient of Thermal Expansion (20-1000°C):** 16.0 x 10⁻⁶ /K **Mechanical Properties (Room Temperature - Annealed Condition):** * **Tensile Strength:** 550 - 690 MPa (80 - 100 ksi) * **Yield Strength (0.2% Offset):** 240 MPa min (35 ksi min) * **Elongation (% in 2 inches):** 30% min * **Hardness (Rockwell B):** 65 - 85 HRB --- #### **3. Product Applications** **Alloy 77 Plate and Sheet** is fabricated into components that require flat, durable, and resistant surfaces in harsh thermal environments. Key applications include: * **Furnace Muffles and Retorts:** Enclosed containers that protect workloads from furnace atmospheres. * **Heat Treatment Baskets and Trays:** For carrying parts through carburizing, annealing, and brazing furnaces. * **Furnace Linings and Inner Casing:** Providing a protective barrier against direct flame impingement and hot gases. * **Structural Supports & Rollers:** Used to support other furnace components and product loads at high temperatures. * **Heat Exchanger Baffles and Parts:** Internal components within high-temperature heat exchangers. * **Base Plates & Diffusers:** For creating uniform temperature distributions within industrial ovens and furnaces. --- #### **4. International Standards & Specifications** Alloy 77 Plate and Sheet conforms to the following key international standards, ensuring material quality and global acceptance. | Standard | Material Number | UNS Number | Product Form | | :--- | :--- | :--- | :--- | | **ASTM B168 / ASME SB168** | - | **N06003** | Plate, Sheet, and Strip | | **ASTM B906** | - | **N06003** | General Specification for Flat-Rolled Nickel and Nickel Alloys | | **DIN 17742** | **2.4631** | - | Plate and Sheet (NiCr15Fe) | | **EN 10095** | **NiCr15Fe** (Similar) | - | Heat resisting steels and nickel alloys | *The UNS N06003 and ASTM B168 specifications are the primary standards for plate products.* --- #### **5. Key Advantages of Plate & Sheet Form** * **Superior High-Temperature Strength:** Maintains structural integrity under heavy loads at elevated temperatures. * **Exceptional Oxidation & Carburization Resistance:** Ideal for long-term service in atmospheres that would degrade standard alloys. * **Excellent Fabricability:** Can be sheared, punched, plasma cut, and welded using standard techniques for nickel alloys. * **Thermal Fatigue Resistance:** Withstands repeated heating and cooling cycles without cracking. * **Long Service Life & Cost-Efficiency:** Reduces furnace downtime and maintenance, leading to lower total cost of ownership. **Conclusion:** Alloy 77 (Nilomag 77) Plate is the material of choice for engineers designing robust structures and components for extreme thermal environments. Its proven performance in plate form makes it indispensable for building reliable and efficient high-temperature industrial equipment. --- **For detailed information on available sizes, thickness tolerances, or fabrication guidelines, please contact our technical support team.**

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 2786 gallon liquid totes Special package is available on request.