Monel Alloy Plate Monel 400 & Monel K500 | Monel Series Nickel Copper Alloy Sheet

Monel Alloy Plate Monel 400 & Monel K500 | Monel Series Nickel Copper Alloy Sheet

  1. Outstanding resistance to seawater and brine corrosion
  2. Excellent alkali and non-oxidizing medium corrosion performance
  3. Good ductility and easy machining & welding
  4. Low corrosion rate in high-speed flowing seawater
  5. Monel K500 can achieve higher strength via age hardening
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Product Overview

Monel series alloy plate is nickel-copper solid solution alloy, mainly including Monel 400 and Monel K500 grades. Monel 400 is single-phase Ni-Cu alloy with good toughness and corrosion resistance in neutral, alkaline and salt water environments. Monel K500 is precipitation hardening version of Monel 400, adding aluminum and titanium, can be age hardened to obtain much higher tensile and yield strength while retaining similar corrosion resistance as Monel 400.

Our Monel alloy sheets/plates adopt vacuum melting and hot rolling process, stable metallurgical structure, flat plate surface, tight dimensional tolerance. Widely used in marine seawater pipeline components, seawater desalination equipment, chemical alkali reactor, oil & gas well accessories, valve and pump parts. We offer laser cutting, blanking and custom size service for different engineering demands.

Nickel Base & Super Alloy Steel Plate

Chemical & Mechanical Property Snapshot

Grade C (Max) Si (Max) Mn Cu Fe Al Ti Ni Tensile Strength MPa (Min) Yield Strength MPa (Min) Elongation % (Min)
Monel 400 0.30 0.50 ≤2.0 28.0–34.0 ≤2.5 – – Rem 480 170 35
Monel K500 0.25 0.50 ≤1.5 27.0–33.0 ≤2.0 2.3–3.15 0.35–0.85 Rem 690 585 20

Detailed Technical Specifications

Item Specification
Product Name Monel Series Nickel Copper Alloy Plate / Sheet
Applicable Grades Monel 400, Monel K500
Executive Standards ASTM B127, ASME SB127
Thickness Range 0.5 mm – 80 mm
Width Range 100 mm – 2200 mm
Length Range 500 mm – 6000 mm, custom fixed-length cutting available
Surface Finish 2B, No.1, pickled, sandblasted, polished, customized surface
Processing Service Laser cutting, water jet cutting, slitting, bending, customized blanking
Quality Documents Mill Test Certificate (MTC 3.1/3.2), third-party inspection (SGS/BV/TÜV) available
MOQ (Minimum Order Quantity) 100 KG; bulk order 5 tons available
Payment Terms T/T, L/C at Sight
Delivery Time 7–15 working days after receiving deposit
Package Waterproof paper + plastic film + wooden pallet, seaworthy export packing
Application Fields Marine equipment, seawater desalination, alkali chemical reactor, oil & gas, valve & pump components

Product Comparison Table

Item Monel 400 Monel K500
Alloy System Nickel-Copper Nickel-Copper with Al & Ti (Precipitation Hardening)
Core Feature Good toughness, general corrosion resistance High strength after age hardening, same corrosion resistance base
Corrosion Environment Seawater, alkaline solution, salt brine Seawater, brine, non-oxidizing medium
Heat Treatment Cannot be hardened by heat treatment Age hardening treatment available
Typical Application Marine sheet, desalination tank, chemical pump casing Shaft, fastener, valve trim, downhole oil components
Welding Performance Excellent Good, age hardening after welding recommended

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FAQs

Monel 400 is soft state nickel copper alloy with good ductility. Monel K500 adds aluminum and titanium, can be age-hardened to get much higher strength and hardness, while keeps similar corrosion resistance as Monel 400.

Yes. Monel series performs great in seawater, low pitting tendency under flowing seawater, widely adopted for marine and desalination equipment.

Yes, it can be welded. If high mechanical strength is required, age hardening heat treatment is recommended after welding.

No. Monel is suitable for non-oxidizing medium. It will suffer severe corrosion in strong oxidizing acid like nitric acid.

Yes. All Monel alloy plates come with 3.1 Mill Test Certificate, SGS/BV third-party inspection is acceptable on request.

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  • ISO, SGS, TÜV, WTRUST, Lloyd’s Register, and DNV certifications

  • Customizable sizes, grades, and surface finishes

  • Full material traceability and inspection reports

  • Responsive support and fast global delivery


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