Alloy 400，Monel 400 Forgings，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 Forgings (UNS N04400) - Product Introduction** **Overview** **Alloy 400** (commercially known as **Monel 400**) is a nickel-copper alloy renowned for its exceptional corrosion resistance in various aggressive environments. **Monel 400 Forgings** represent the highest quality product form, offering superior mechanical properties and structural integrity through the controlled forging process. This manufacturing method produces components with optimized grain structure, enhanced strength, and improved reliability for critical applications in demanding industries. The UNS **N04400** designation ensures consistent material quality. The forging process aligns the metallic grain structure with the component's shape, resulting in improved mechanical properties and greater resistance to impact and fatigue compared to cast or machined parts. --- ### **Chemical Composition** The chemical composition maintains the same excellent corrosion resistance as other Monel 400 product forms. | 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 forging process enhances the inherent properties of this nickel-copper composition, particularly improving toughness and fatigue resistance. --- ### **Physical Properties** Monel 400 forgings exhibit consistent physical properties with enhanced structural characteristics. | 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** Forged Monel 400 exhibits enhanced mechanical properties compared to other product forms: | Condition | Tensile Strength | Yield Strength (0.2% Offset) | Elongation (%) | Impact Strength | | :--- | :--- | :--- | :--- | :--- | | **Annealed** | 550-690 MPa (80-100 ksi) | 240-380 MPa (35-55 ksi) | 35-45 | 90-120 J | | **Solution Annealed** | 580-720 MPa (84-104 ksi) | 280-420 MPa (41-61 ksi) | 30-40 | 80-110 J | --- ### **International Standards** Monel 400 forgings comply with stringent international standards: | Standard Organization | Standard Number | Specification | | :--- | :--- | :--- | | **ASTM** | ASTM B564 | Standard Specification for Nickel Alloy Forgings | | **ASME** | SB-564 | Nickel Alloy Forgings for Pressure Components | | **ASTM** | ASTM B160 | Standard Specification for Nickel Rod and Bar | | **DIN** | 2.4360 | NiCu30Fe Forgings | | **EN** | EN 10204 | Metallic Products - Types of Inspection Documents | --- ### **Manufacturing Processes & Product Applications** **Forging Processes:** - Open-die forgings - Closed-die forgings - Ring rolling - Press forgings - Hammer forgings **Marine & Offshore Applications:** - Propeller shafts - Submarine components - Valve bodies for seawater service - Marine pump components - Shipbuilding structural parts **Chemical Processing Equipment:** - Reactor vessels - Agitator shafts - Valve bodies and stems - Pump casings and impellers - Mixer components **Oil & Gas Industry:** - Wellhead components - Christmas tree parts - Valve and gate bodies - Drill string components - Pressure vessel parts **Aerospace & Defense:** - Rocket motor components - Aircraft fittings - Missile parts - Engine components - Military hardware **Power Generation:** - Turbine components - Generator parts - Nuclear reactor components - Heat exchanger parts - Pump shafts for power plants --- ### **Key Advantages** - **Superior Mechanical Properties:** Enhanced strength, toughness, and fatigue resistance through grain structure optimization - **Improved Structural Integrity:** Forging eliminates porosity and voids common in castings - **Excellent Corrosion Resistance:** Maintains Monel 400's superior resistance to seawater, acids, and alkaline solutions - **Better Fatigue Performance:** Aligned grain structure provides superior resistance to cyclic loading - **Enhanced Reliability:** Consistent properties throughout the component cross-section - **Non-Magnetic Characteristics:** Essential for sensitive electronic and marine applications - **Temperature Versatility:** Maintains performance from cryogenic to elevated temperatures (up to 540°C) - **Customizable Shapes:** Ability to produce complex geometries close to final dimensions Monel 400 Forgings (UNS N04400) represent the premium choice for critical components requiring the highest levels of reliability, strength, and corrosion resistance. The forging process unlocks the full potential of this nickel-copper alloy, making it indispensable for applications where failure is not an option in marine, chemical processing, oil and gas, and aerospace 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 1672 gallon liquid totes Special package is available on request.