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Specialty Products / Superalloys & Metals / Superalloys & High-Performance Alloys / Monel® R-405

Superalloys & High-Performance Alloys

Monel® R-405

Monel® R-405 is the free-machining version of MONEL 400 for turned and precision-machined components. It keeps the core corrosion resistance of the 400 alloy family while improving machining behavior for complex parts. EQI supplies MONEL R-405 for production machining programs.

MONEL® is a registered trademark of Special Metals Corporation.

  • UNS N04405
  • Free-machining nickel-copper alloy
  • Also known as: R-405

Request a Quote for Monel® R-405

To get started, request a quote using the form below and we will get back to you. Please note that the quantity needed to quote or supply a specific alloy grade is typically 500-1,000 lbs, depending on the material.

Key Properties

  • Free-machining version of MONEL 400
  • Retains useful nickel-copper corrosion resistance
  • Good for screw-machine and turned parts
  • Strong toughness and marine applicability
  • Selected where machining efficiency matters

Composition

Nickel 63 min
Copper 28-34
Iron 2.5 max
Manganese 2 max
Sulfur 0.025-0.06
Carbon 0.3 max

Applications

Common industries and end-use applications include Chemical Processing, Marine & Shipbuilding, and Oil & Gas.

  • Fittings and valve components
  • Fasteners and turned parts
  • Marine instrumentation hardware
  • Pump and meter internals
  • Precision machined corrosion-resistant parts

Request a Quote

Whether you're sourcing raw material or need a manufactured component produced from a specialty alloy, the EQI team can help.

Why Choose EQI

Your Single Source for Specialty Alloys and Precision Manufacturing

EQI combines specialty alloy sourcing with manufacturing expertise, allowing customers to move from raw material supply to finished components through a single partner.

Our team supports OEMs and manufacturers by sourcing difficult-to-procure alloys and producing components for demanding applications.

Key Advantages

  • Global sourcing and foundry partnerships
  • Expertise in high-temperature and high-performance alloys
  • Precision machining and finished component manufacturing
  • Reliable lead times and consistent quality
  • Inventory management and just-in-time delivery programs
  • Engineering support for complex alloy applications