Alloy C276,Inconel C276 Sheet,UNS N10276,E FORU

British Specs:，American Specs:AMS 5750 ASTM B462 ASTM B564 ASTM B574 ASTM B575 ASTM B622 ASTM B626 (Tube *) ASTM B619 ASTM B775，German Specs:WS 2.4819

### **Product Datasheet: Alloy C-276 / Inconel C-276 Sheet (UNS N10276)** **Alloy C-276** (commercially known as **Inconel C-276**) sheet is a nickel-molybdenum-chromium superalloy supplied in thin, flat form, offering exceptional corrosion resistance across a wide range of severe environments. This product form combines excellent fabricability with outstanding chemical resistance, making it ideal for applications requiring lightweight, formable components that must withstand aggressive chemical media while maintaining structural integrity. --- #### **1. Chemical Composition** The chemical composition of Alloy C-276 sheet is precisely controlled to ensure optimal performance: | Element | Content (%) | |:---|:---| | **Nickel (Ni)** | Balance | | **Molybdenum (Mo)** | 15.0 - 17.0 | | **Chromium (Cr)** | 14.5 - 16.5 | | **Iron (Fe)** | 4.0 - 7.0 | | **Tungsten (W)** | 3.0 - 4.5 | | **Cobalt (Co)** | 2.5 max | | **Manganese (Mn)** | 1.0 max | | **Vanadium (V)** | 0.35 max | | **Silicon (Si)** | 0.08 max | | **Carbon (C)** | 0.01 max | | **Phosphorus (P)** | 0.025 max | | **Sulfur (S)** | 0.01 max | *Note: The carefully balanced composition provides exceptional resistance to both oxidizing and reducing media, while the low carbon and silicon content ensures optimal corrosion resistance in welded structures and heat-affected zones.* --- #### **2. Physical Properties** Alloy C-276 sheet exhibits consistent physical properties across all gauges: | Property | Value | |:---|:---| | **Density** | 8.89 g/cm³ (0.321 lb/in³) | | **Melting Range** | 1325 - 1370°C (2420 - 2500°F) | | **Coefficient of Thermal Expansion** | 11.2 × 10⁻⁶/°C (20-100°C) | | **Thermal Conductivity** | 10.2 W/m·K (at 100°C) | | **Specific Heat** | 427 J/kg·K (at 100°C) | | **Modulus of Elasticity** | 205 GPa (29.7 × 10⁶ psi) | | **Electrical Resistivity** | 1.30 μΩ·m | | **Magnetic Permeability** | <1.001 (essentially non-magnetic) | --- #### **3. Mechanical Properties** **Standard Mechanical Properties (Annealed Condition per ASTM B575):** | Property | Value | |:---|:---| | **Tensile Strength** | 790 MPa (115 ksi) min | | **Yield Strength (0.2% Offset)** | 415 MPa (60 ksi) min | | **Elongation** | 55% min | | **Hardness** | 90 HRB max | **Properties by Thickness Range:** | Thickness | Tensile Strength | Yield Strength | Elongation | |:---|:---|:---|:---| | **0.5-3mm** | 760-860 MPa | 380-480 MPa | 50-60% | | **3-6mm** | 790-890 MPa | 415-515 MPa | 50-58% | | **6-12mm** | 790-900 MPa | 415-520 MPa | 48-56% | --- #### **4. Product Specifications** **Available Forms & Sizes:** - **Thickness:** 0.5mm to 12mm (0.020" to 0.472") - **Width:** 600mm to 2000mm (24" to 78") - **Length:** 1000mm to 6000mm (39" to 236") - **Temper Conditions:** Annealed, 1/4 Hard, 1/2 Hard **Surface Finishes:** - **No. 1:** Hot rolled, annealed, and pickled - **No. 2D:** Cold rolled, dull finish - **No. 2B:** Cold rolled, bright finish - **BA:** Bright annealed - **Polished:** Various grit finishes available --- #### **5. Product Applications** **Chemical Processing Equipment:** - **Tank Linings:** For corrosive chemical storage - **Reactor Jackets:** Temperature control surfaces - **Ductwork:** For corrosive fume handling - **Cover Plates:** For vessels and equipment - **Baffle Plates:** In reactors and columns **Pollution Control Systems:** - **Scrubber Liners:** For flue gas desulfurization - **Stack Dampers:** Corrosive gas handling components - **Waste Treatment:** Tank and vessel construction - **Air Pollution Control:** Ducting and housing components **Oil & Gas Industry:** - **Pressure Vessel Cladding:** Corrosion-resistant layers - **Flow Meter Plates:** In sour gas service - **Seal Plates:** For wellhead equipment - **Pipeline Components:** Sour service applications **Marine & Offshore:** - **Seawater System Components:** Pump covers, housing plates - **Deck Plating:** In corrosive marine environments - **Equipment Enclosures:** For electronic systems - **Structural Liners:** For ballast tanks and voids **Pharmaceutical Industry:** - **Process Equipment:** Reaction vessel components - **Clean Room Panels:** Corrosion-resistant surfaces - **Utility Systems:** Chemical distribution components - **Containment Systems:** Safety and environmental controls --- #### **6. International Standards** **Material Standards:** - **UNS N10276**: Unified Numbering System designation - **ASTM B575**: Standard for Plate, Sheet, and Strip - **ASME SB575**: ASME Boiler and Pressure Vessel Code - **DIN 2.4819**: German Industrial Standard - **EN 10095**: NiMo16Cr15W (European Standard) **Industry Specifications:** - **NACE MR0175/ISO 15156**: For sour service applications - **ASME Section VIII**: Pressure vessel construction - **ASTM A480**: General Requirements for Flat-Rolled Stainless Steel - **PED 2014/68/EU**: Pressure Equipment Directive **Quality Standards:** - **ASTM E290**: Bend Testing for Ductility - **ASTM E517**: Plastic Strain Ratio (r-value) - **ASTM E646**: Tensile Strain-Hardening Exponents (n-values) - **EN 10204 3.1/3.2**: Material certification --- #### **7. Corrosion Resistance** **Excellent Performance In:** - **Hydrochloric Acid:** All concentrations and temperatures - **Sulfuric Acid:** Wide concentration range up to 70% - **Phosphoric Acid:** All concentrations and temperatures - **Chloride Solutions:** Superior pitting and crevice corrosion resistance - **Wet Chlorine Gas:** Outstanding performance - **Organic Acids:** Formic, acetic, and other organic acids **Corrosion Performance Data:** - **Critical Pitting Temperature:** >85°C - **Critical Crevice Temperature:** >65°C - **Pitting Resistance Equivalent Number (PREN):** ~69 - **General Corrosion Rate:** <0.1 mm/year in most aggressive media --- #### **8. Fabrication Characteristics** **Forming Operations:** - **Bending:** Minimum bend radius 2 × thickness for 90° bends - **Deep Drawing:** Excellent in annealed condition - **Stretch Forming:** Suitable for complex shapes - **Spinning:** Good formability for symmetrical parts **Machining:** - **Machinability Rating:** 40-50% (compared to 1212 steel) - **Tool Materials:** Carbide tools recommended - **Cutting Speeds:** 20-30 m/min for milling operations - **Feed Rates:** Moderate with positive rake angles **Welding:** - **Recommended Processes:** GTAW, GMAW, Laser - **Filler Metals:** ERNiCrMo-4 - **Preheat:** Not normally required - **Post-Weld Heat Treatment:** Usually not necessary --- #### **9. Heat Treatment** **Solution Annealing:** - **Temperature:** 1120-1175°C (2050-2150°F) - **Cooling:** Rapid water quench or fast air cool - **Purpose:** To dissolve precipitated phases and restore corrosion resistance **Special Considerations for Sheet:** - **Flatness Control:** Critical during heat treatment - **Surface Protection:** To prevent oxidation during processing - **Quenching Rate:** Important for maintaining corrosion resistance --- #### **10. Quality Assurance** **Testing & Certification:** - **Chemical Analysis:** Certified mill test reports - **Mechanical Testing:** Tensile, hardness, bend tests - **Surface Inspection:** Visual and dimensional checks - **Non-Destructive Testing:** PT, UT as specified - **Flatness Measurement:** To specified tolerances **Dimensional Tolerances:** - **Thickness:** ±5% or ±0.05mm, whichever is greater - **Width/Length:** ±1mm to ±5mm depending on size - **Flatness:** 3mm per meter maximum - **Squareness:** 1mm per 100mm maximum --- #### **11. Key Advantages** * **Excellent Formability:** Can be deeply drawn and formed into complex shapes * **Exceptional Corrosion Resistance:** Outstanding performance in aggressive environments * **High Strength-to-Weight Ratio:** Ideal for weight-sensitive applications * **Good Weldability:** Suitable for various welding processes * **Surface Quality:** Available in multiple finishes for different applications * **Industry Compliance:** Meets major international standards * **Proven Reliability:** Extensive service history in critical applications Alloy C-276 sheet provides designers and manufacturers with a versatile, high-performance material solution for applications requiring excellent corrosion resistance, good formability, and reliable performance in demanding industrial environments across chemical processing, oil and gas, pollution control, and pharmaceutical industries.

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 2020 gallon liquid totes Special package is available on request.