UNS N04400 nickel copper alloy cap

Key Advantages
  • Wide Range of Industrial Steel Materials
  • Reliable Global Supply and Fast Delivery
  • Strict Quality Control and Certified Materials
  • Customized Solutions for Industrial Applications
  • Professional Service with Long-Term Partnership

Our precision-engineered UNS N04400 (Monel 400) nickel-copper alloy caps are designed to provide reliable end closure solutions for piping systems operating in marine environments and reducing chemical conditions. Manufactured to international standards, these caps offer exceptional resistance to seawater, hydrofluoric acid, and alkalis, combined with high strength and excellent weldability. Leveraging the unique properties of Monel 400, our caps deliver superior performance in marine engineering, chemical processing, oil & gas extraction, and desalination plants where secure and permanent pipe end sealing is essential.

 

Available Materials & Specifications

We ensure complete traceability and compliance with international standards such as ASTM B366, ASME, and MSS. Our caps are available in high-performance UNS N04400 nickel-copper alloy to meet the demands of marine and reducing chemical environments.

Nickel Alloy Grade:

Monel 400 / Alloy 400 / UNS N04400 / W.Nr. 2.4360 / 2.4361

Standards : ASTM B366, ASME B16.9, MSS SP-43

 

Traceability: 100% Mill Test Certificates (MTC) with full heat traceability and PMI testing available upon request

 

Product Range & Dimensions

We offer a complete line of UNS N04400 caps in various types and dimensions to fit standard pipe schedules and end configurations:

Types:

Standard Caps for butt-weld connections

End Caps for pipe end termination

Size Range :

Nominal Diameter: 1/2″ to 48″ (DN15 to DN1200) – Larger sizes available upon request

Wall Thickness:

Sch 10S, Sch 40S, Sch 80S, Sch 160, XXS (Custom wall thicknesses available for specific pressure requirements)

Shape:

Standard elliptical or hemispherical designs for optimal pressure containment

OEM & Custom Services / OEM

Special End Preparation:

Bevel ends (Standard or J-preparation) for welding

Custom Dimensions:

Non-standard cap lengths or special shapes for unique piping layouts

Marking:

Laser marking or low-stress stamping with your logo, alloy grade, heat number, and specification details. Low-stress stamping is critical for nickel alloys to prevent stress concentration points.

Custom Packaging:

Plywood cases, steel crates, or heat-shrink wrapping with custom labeling for inventory management.

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