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Specialty Products / Superalloys & Metals / Superalloys & High-Performance Alloys / Monel® 400

Superalloys & High-Performance Alloys

Monel® 400

Monel® 400 is a nickel-copper alloy known for broad corrosion resistance, strong toughness, and dependable marine performance. It is a practical choice for seawater, hydrofluoric acid, and many reducing media where stainless grades may fall short. EQI supplies MONEL 400 in bar, plate, and custom-machined forms.

MONEL® is a registered trademark of Special Metals Corporation.

  • UNS N04400
  • Nickel-copper corrosion-resistant alloy
  • Also known as: Alloy 400

Request a Quote for Monel® 400

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

  • Excellent seawater and marine corrosion resistance
  • Strong toughness from subzero to elevated temperature
  • Good resistance in hydrofluoric acid and alkalis
  • Can be work hardened for higher strength
  • Used in pumps, valves, shafts, and process hardware

Composition

Nickel 63 min
Copper 28-34
Iron 2.5 max
Manganese 2 max
Carbon 0.3 max
Silicon 0.5 max

Applications

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

  • Marine shafts and seawater hardware
  • Pump and valve trim
  • Chemical process equipment
  • Heat exchangers and condensers
  • Hydrocarbon and acid-handling components

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