Alloy 400，Monel 400 Sheet，UNS N04400，EFORU

British Specs:BS 3072 BS 3073 BS 3074 BS 3075 BS 3076 NA11，American Specs:AMS 4574 Tube AMS 4575 (Tube *) AMS 4675 Bar and Forgings AMS 4730 Wire AMS 4731 Wire and Ribbon AMS 4544 Sheet, Strip and Plate QQ-N-281 ASTM B164，German Specs:

### **Alloy 400 / Monel 400 Sheet (UNS N04400) - Product Introduction** **Overview** **Alloy 400** (commercially known as **Monel 400**) is a nickel-copper alloy renowned for its exceptional corrosion resistance in a wide range of aggressive environments. **Monel 400 Sheet** represents a versatile product form that combines excellent mechanical properties with outstanding fabricability, making it ideal for various industrial applications including chemical processing, marine engineering, and oil and gas industries. The UNS **N04400** designation ensures consistent material quality and performance. Available in various thicknesses and sizes, Monel 400 sheet maintains its superior characteristics from cryogenic temperatures up to approximately 540°C (1000°F), providing reliable performance in demanding service conditions. --- ### **Chemical Composition** The chemical composition is carefully balanced to deliver optimal corrosion resistance and mechanical performance. | Element | Content (%) | | :--- | :--- | | **Nickel (Ni)** | 63.0 (Minimum) | | **Copper (Cu)** | 28.0 - 34.0 | | **Iron (Fe)** | 2.5 (Maximum) | | **Manganese (Mn)** | 2.0 (Maximum) | | **Carbon (C)** | 0.3 (Maximum) | | **Silicon (Si)** | 0.5 (Maximum) | | **Sulfur (S)** | 0.024 (Maximum) | **Note:** The nickel-copper balance provides excellent resistance to corrosive media including seawater, acids, and alkaline solutions, while the controlled iron content enhances structural stability. --- ### **Physical Properties** Monel 400 sheet exhibits consistent physical properties suitable for various manufacturing processes. | Property | Value | | :--- | :--- | | **Density** | 8.80 g/cm³ (0.318 lb/in³) | | **Melting Point** | 1350 °C (2460 °F) | | **Electrical Resistivity** | 51 μΩ·cm at 20°C | | **Thermal Conductivity** | 22 W/m·K at 20°C | | **Thermal Expansion Coefficient** | 13.9 μm/m·°C (20-100°C) | | **Magnetic Permeability** | Essentially non-magnetic | --- ### **Mechanical Properties** Typical mechanical properties for Monel 400 sheet: | Condition | Tensile Strength | Yield Strength (0.2% Offset) | Elongation (%) | | :--- | :--- | :--- | :--- | | **Annealed** | 550-690 MPa (80-100 ksi) | 240-380 MPa (35-55 ksi) | 35-45 | | **Hot Rolled** | 550-690 MPa (80-100 ksi) | 280-410 MPa (40-60 ksi) | 30-40 | | **Cold Rolled** | 620-860 MPa (90-125 ksi) | 480-760 MPa (70-110 ksi) | 15-30 | --- ### **International Standards** Monel 400 sheet complies with major international standards: | Standard Organization | Standard Number | Specification | | :--- | :--- | :--- | | **ASTM** | ASTM B127 | Standard Specification for Nickel-Copper Alloy Plate, Sheet, and Strip | | **ASME** | SB-127 | Boiler and Pressure Vessel Code | | **ASTM** | ASTM B163 | Seamless Condenser and Heat Exchanger Tubes | | **DIN** | 2.4360 | NiCu30Fe | | **EN** | EN 2.4360 | Nickel-Copper Alloy Sheet/Plate | | **ISO** | ISO 6208 | Nickel-copper alloy plate, sheet and strip | --- ### **Product Applications** **Chemical Processing Industry:** - Reaction vessel linings - Chemical storage tanks - Process equipment fabrications - Acid manufacturing equipment - Heat exchanger baffles **Marine Engineering:** - Shipbuilding components - Seawater handling systems - Offshore platform structures - Marine exhaust systems - Desalination plant components **Oil and Gas:** - Crude distillation columns - Feedwater heater components - Gas processing equipment - Pressure vessel fabrication - Pipeline protection **Other Applications:** - Power generation components - Pollution control equipment - Pharmaceutical processing equipment - Roofing and architectural applications in corrosive environments - Fastener manufacturing --- ### **Key Advantages** - **Exceptional Corrosion Resistance:** Superior performance in seawater, sulfuric acid, hydrofluoric acid, and alkaline solutions - **Excellent Fabricability:** Good formability and weldability using standard manufacturing techniques - **High Strength-to-Weight Ratio:** Provides structural integrity with reduced weight - **Non-Magnetic Properties:** Ideal for applications requiring non-magnetic characteristics - **Temperature Versatility:** Maintains performance from cryogenic to elevated temperatures - **Long Service Life:** Proven durability in harsh environments reduces maintenance costs Monel 400 Sheet (UNS N04400) offers an outstanding combination of corrosion resistance, mechanical strength, and manufacturing versatility, making it the material of choice for critical applications across multiple industries where reliability and long-term performance are essential.

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 1669 gallon liquid totes Special package is available on request.