Alloy 330，Incoloy 330 Plate，,E FORU

British Specs:，American Specs: AMS 5716 Sheet and Strip，German Specs:

### **Product Introduction: Alloy 330 / Incoloy 330 Plate (UNS N08330)** **Alloy 330 Plate** is a premium nickel-iron-chromium alloy supplied in flat plate form, specifically engineered to deliver exceptional performance in high-temperature environments. Renowned for its outstanding resistance to oxidation, carburization, and thermal cycling, this product serves as fundamental construction material for industrial furnaces and high-temperature processing equipment. Available in various thicknesses and dimensions, Alloy 330 plate provides the structural integrity and durability required for building critical components that must withstand temperatures up to 2200°F (1200°C) while maintaining mechanical strength and resisting atmospheric degradation. --- ### **Chemical Composition (Weight %)** The chemical composition is carefully balanced to ensure optimal high-temperature performance and formation of protective surface oxides. | Element | Content (%) | Role in the Alloy | | :--- | :--- | :--- | | **Nickel (Ni)** | 34.0 - 37.0 | Provides base resistance to oxidation and carburization; stabilizes austenitic structure | | **Chromium (Cr)** | 17.0 - 20.0 | Forms protective chromium oxide scale for oxidation resistance | | **Iron (Fe)** | Balance | Base element | | **Silicon (Si)** | 0.75 - 1.50 | Critical for carburization resistance and scale adhesion | | **Manganese (Mn)** | ≤ 2.00 | Enhances hot workability | | **Carbon (C)** | ≤ 0.08 | Provides high-temperature strength | | **Phosphorus (P)** | ≤ 0.030 | Controlled impurity | | **Sulfur (S)** | ≤ 0.030 | Controlled impurity | --- ### **Physical & Mechanical Properties (Annealed Condition)** | Property | Value | | :--- | :--- | | **Density** | 8.0 g/cm³ (0.289 lb/in³) | | **Melting Point** | 1371 - 1427 °C (2500 - 2600 °F) | | **Thermal Expansion Coefficient** | 14.4 μm/m·°C (20-300°C) | | **Thermal Conductivity** | 12.5 W/m·K (at 100°C) | | **Modulus of Elasticity** | 196 GPa (28.4 × 10⁶ psi) | | **Tensile Strength** | 620 MPa (90 ksi) min | | **Yield Strength (0.2% Offset)** | 310 MPa (45 ksi) min | | **Elongation** | 30% min | | **Hardness (Rockwell B)** | ≤ 85 HRB | --- ### **International Standards** Alloy 330 plate conforms to rigorous international standards ensuring quality and performance consistency. | Standard Body | Standard Number | Title / Scope | | :--- | :--- | :--- | | **ASTM** | B536 | *Nickel-Iron-Chromium-Silicon Alloy Plate, Sheet, and Strip* | | **ASME** | SB-536 | *Boiler and Pressure Vessel Code Version* | | **UNS** | **N08330** | Unified Numbering System | | **EN** | 10095 | *Heat Resisting Steels and Nickel Alloys (1.4886)* | **Available Forms:** - **Thickness:** Typically 5mm to 100mm+ - **Width:** Up to 2000mm - **Length:** Up to 6000mm - **Surface:** Hot-rolled, annealed, and pickled --- ### **Product Applications** Alloy 330 plate is extensively used in high-temperature structural applications across multiple industries: 1. **Furnace Construction** - **Internal Liners & Baffles:** Protecting furnace walls from direct heat exposure - **Doors & Seals:** Maintaining atmospheric integrity at high temperatures - **Support Structures:** For burner systems and internal components 2. **Heat Treatment Equipment** - **Fixture Plates:** For supporting workpieces during processing - **Retort Bases & Covers:** In sealed atmosphere furnaces - **Quench Tanks & Chutes:** Handling hot materials 3. **Petrochemical Industry** - **Reformer Components:** In hydrogen production units - **Furnace Walls & Headers:** For cracking furnaces - **Heat Shield Plates:** Protecting structural elements 4. **Power Generation** - **Boiler Components:** In waste heat recovery systems - **Ducting & Expansion Joints:** For high-temperature gas paths --- ### **Fabrication Characteristics** **Machining:** - Machinability rating: ~40% (compared to 1212 steel) - Requires slow speeds, heavy feeds, sharp tooling - Positive rake angles recommended - Use rigid setups to minimize work hardening **Welding:** - Excellent weldability using common processes - **GTAW (TIG)** preferred for critical applications - **GMAW (MIG)** suitable for thicker sections - **Filler Metals:** ERNiCr-3 (Alloy 82) or ERNiCrSi-1 **Forming:** - Good cold forming characteristics in annealed condition - Hot forming possible between 1600-2200°F (870-1200°C) - Post-forming annealing recommended for severe deformations --- ### **Similar & Alternative Alloys** | Alloy | Key Characteristics | Comparison to Alloy 330 | | :--- | :--- | :--- | | **RA 330®** | Trademark version of UNS N08330 | Essentially identical | | **Alloy 800H/HT** | Higher creep strength | Better for sustained very high temperatures | | **Alloy 601** | Higher aluminum content | Superior oxidation resistance | | **Alloy 309/310S** | Lower nickel content | Less carburization resistance | --- ### **Conclusion** **Alloy 330 / Incoloy 330 Plate** represents an optimal solution for high-temperature structural applications where resistance to oxidation, carburization, and thermal cycling is paramount. Its balanced chemistry provides exceptional performance in the 1000-2200°F (540-1200°C) range, making it indispensable for furnace builders, heat treaters, and petrochemical engineers seeking reliable, long-lasting performance in demanding thermal environments. The material's excellent fabrication characteristics, combined with comprehensive international standardization, ensure consistent performance and ease of implementation in both new construction and maintenance applications across global industrial sectors.

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 2708 gallon liquid totes Special package is available on request.