Monel K500 Plate – High-Strength Quality by China Manufacturer

Monel K500 Plate is a nickel-copper alloy enhanced with aluminum and titanium, delivering exceptional strength and corrosion resistance. Known for its age-hardening process, this alloy outperforms Monel 400 with triple the yield strength, making it a top choice for marine, chemical, and oil/gas applications where durability is non-negotiable.

Price: Contact Us for a Custom Quote

Are you curious about Monel K500 Plate pricing? Contact us at sales for a personalized quote. Our Monel K500 sheet and plate options offer competitive rates with superior performance.

Specifications of Monel K500 Plate

Our Monel Plate comes in various configurations:

  • Standards: ASTM B127, ASME SB127, UNS N05500
  • Thickness: 0.018″ – 3″ (0.46 mm – 76.2 mm)
  • Width: Up to 48″ (1219 mm)
  • Length: Customizable, up to 144″ (3658 mm)
  • Surface Finish: Annealed, polished, or as-rolled

Key Features (Advantages)

  • Superior strength (up to 1100 MPa) and hardness
  • Excellent corrosion resistance in seawater and acids
  • Non-magnetic even at low temperatures
  • High fatigue resistance
  • Easy to fabricate and weld

Applications of Monel K500 Plate

  • Marine: Propeller shafts, pump components
  • Chemical: Heat exchangers, valve plates
  • Oil & Gas: Drill collars, tubing
  • Aerospace: Fasteners, springs
  • Paper Industry: Doctor blades

Chemical Composition of Monel K500

ElementPercentage (%)
Nickel (Ni)63.0 - 70.0
Copper (Cu)27.0 - 33.0
Aluminum (Al)2.3 - 3.15
Titanium (Ti)0.35 - 0.85
Iron (Fe)≤ 2.0
Manganese (Mn)≤ 1.5
Carbon (C)≤ 0.25
Silicon (Si)≤ 0.5

Mechanical Properties of Monel K500 Plate

PropertyValue (Aged)
Tensile Strength965 - 1100 MPa
Yield Strength690 - 760 MPa
Elongation≥ 20%
Hardness (HB)280 - 350

Chemical Properties

Monel K500 Sheet excels in resisting hydrochloric and hydrofluoric acids in de-aerated conditions and performs well against alkalis. However, it’s less effective in oxidizing environments like nitric acid, where corrosion rates increase due to its nickel-copper base.

Things to Note (Limitations)

  • Weakens above 649°C (1200°F)
  • Susceptible to stress-corrosion cracking in certain aged conditions
  • Higher cost compared to stainless steel
  • Challenging to machine due to rapid work-hardening

Corrosion Data for Monel K500 Sheet

EnvironmentCorrosion Rate (mm/year)Test ConditionsFactors Affecting Corrosion
Atmospheric (Air)0.002 – 0.01Ambient, 20-25°C, 50% humidityHumidity, sulfur presence
Seawater (Flowing)< 0.0525°C, aerated, high velocityVelocity, biofouling
Seawater (Stagnant)0.1 – 0.325°C, stagnant, under depositsStagnation, crevice conditions
Sulfuric Acid (10%)0.1 – 0.225°C, de-aeratedAeration, temperature
Hydrochloric Acid (10%)0.1 – 0.2525°C, de-aeratedConcentration, aeration
Hydrofluoric Acid (50%)0.05 – 0.1525°C, unaerated, up to boilingAeration, temperature
Nitric Acid (10%)0.5 – 1.025°C, oxidizing environmentConcentration, oxidizing agents
Caustic Soda (50%)0.02 – 0.05100°C, de-aeratedTemperature, concentration

Welding and Manufacturing Tips

Welding Monel K500 Sheet is efficient:

  • Welding: Use TIG with ERNiCu-7 filler; anneal and stress-relieve before aging to avoid cracking.
  • Forming: Hot-work at 871-1176°C; cold-work for precision shaping.
  • Machining: Sharp tools, low speeds—Monel Plate hardens quickly during cutting.

Customer Reviews

Customer reviews
Our Monel K500 Sheet in heat exchangers stands up to acids like nothing else—tough and strong. This manufacturer in China ensures every plate meets our specs—fantastic product!

Lisa H.

Chemical Technician

Customer reviews
The Monel K500 Plate we use in pump components is phenomenal—no corrosion after years in seawater! The company in China we source from delivers top-quality Monel every time—reliable and durable!

Mike B.

Marine Engineer

Customer reviews
We rely on Monel K-500 Plate for drill collars—its strength and corrosion resistance are unmatched. This distributor in China keeps our Monel plate needs covered with consistent quality!

Sam K.

Oil & Gas Supervisor

Frequently Asked Questions

Q: How does Monel K500 compare to stainless steel?

A: Monel K500 offers higher strength (up to 1100 MPa) and better seawater resistance than stainless steel, though it’s less effective in oxidizing conditions—ideal for marine and chemical durability.

Q: What’s the best use for Monel K500 Sheet?

A: Marine and chemical applications—think pump plates and heat exchanger parts. Our factory in China supplies Monel K500 sheets that are perfect for these tough environments.

Q: Is Monel K500 better than Monel 400?

A: Yes, Monel K500 has triple the yield strength (690-760 MPa) and added hardness over Monel 400, while retaining similar corrosion resistance—great for high-stress needs.

Q: Can Monel K500 handle harsh acids?

A: Absolutely—it excels in hydrochloric and hydrofluoric acids (0.1-0.25 mm/year), but avoid nitric acid due to higher corrosion rates (0.5-1.0 mm/year).

Q: How weldable is Monel K500 ?

A: Very weldable with TIG and ERNiCu-7 filler—anneal and age post-weld to maintain Monel K500’s strength and corrosion resistance.
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