ASTM B564 Monel 400 Forged Ring – UNS N04400 Nickel Alloy

Monel 400 (UNS N04400) is a nickel-copper alloy renowned for its exceptional resistance to seawater, hydrofluoric acid, sulfuric acid, and alkaline environments. Our ASTM B564 Monel 400 forged rings are manufactured through a controlled open-die forging process, ensuring superior grain structure and mechanical integrity compared to cast alternatives.

Key Features

• Superior Corrosion Resistance: Excellent performance in seawater, brackish water, and aggressive chemical environments including sulfuric and hydrofluoric acid solutions
• High Strength: Minimum tensile strength of 517 MPa and yield strength of 195 MPa in annealed condition
• Wide Temperature Range: Retains mechanical properties from sub-zero to 480°C (900°F)
• Stress Corrosion Cracking Resistant: Immune to chloride-ion stress corrosion cracking, ideal for marine applications
• Full Traceability: Each ring comes with material test certificates (MTC) per EN 10204 3.1, including chemical composition and mechanical test results

Technical Specifications

Chemical Composition (wt%)

Applications

• Marine engineering: propeller shafts, seawater valve components, pump shafts
• Chemical processing: heat exchanger tube sheets, reactor rings, caustic handling equipment
• Oil & gas: offshore platform components, subsea valve bodies, wellhead flanges
• Power generation: steam turbine components, condenser tube support rings

Quality Assurance

Every Monel 400 forged ring undergoes ultrasonic testing (UT) per ASTM E114, liquid penetrant inspection (PT) per ASTM E165, and dimensional verification. Chemical composition is verified via optical emission spectrometry (OES). Mechanical testing includes tensile tests at room temperature. We are ISO 9001:2015 certified with full export documentation support.

Contact us for custom dimensions, non-standard sizes, or specific heat treatment requirements.