Monel copper-nickel alloy

Monel is a family of nickel-based alloys known for their exceptional corrosion resistance, high strength and outstanding durability. This type of nickel-copper alloy typically contains about 67% nickel and 28-29% copper, with small amounts of elements such as iron and manganese added to optimize performance.

Monel K-500

Monel K500 (Monel K500 / UNS N05500) is a nickel-copper alloy that can be strengthened by heat treatment. While retaining the excellent corrosion resistance of Monel 400, it obtains higher mechanical strength and hardness by adding aluminum and titanium elements. The alloy has excellent durability and structural stability, and can be processed through cold and hot processing and subsequent age strengthening to make its strength and toughness far superior to the base alloy. Monel K500 is ideal for critical high-strength, corrosion-resistant components in the oil extraction, offshore and chemical industries.

Age-Hardenable Nickel-Copper Alloy

Monel K500 (UNS N05500)

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Monel K500, or also known as UNS N05500, is an age-hardenable nickel-copper alloy that retains the excellent corrosion resistance of Monel 400 while offering greater mechanical strength and hardness. This alloy provides enhanced durability and long-term structural stability. It can be hot or cold worked and subsequently heat treated in order to create an alloy with high strength and toughness compared to the basic alloy. The use in oil extraction, marine and chemical processing sectors uses this ability to the full.

Standard Compliant

Form	Rod	Forging	Tube	Plate/Sheet/Strip	Welding Wire
Standard	ASTM B865	AMS4676	ASTM B865	ASTM B564	ERNiCu-7

Specifications

Plate/Sheet
Thickness: 0.5mm-50mm
Width: 500mm-2000mm
Length: 1000mm-6000mm
Rod
Diameter: 6mm-300mm
Length: 500mm-6000mm
Tube
Outer Diameter: 3mm-273mm
Wall Thickness: 0.5mm-20mm
Length: ≤ 12000mm
Wire
Diameter: 0.1mm-12mm
Delivery Forms: Coiled wire or straight wire
Welding Wire/Rod
Diameter: 0.8mm-4.0mm
Delivery Forms: Welding wire or welding rod, used for welding Monel alloy products

Chemical Composition

Nickel (Ni): ≥63

Copper (Cu): 27-33

Aluminum (Al): 2.3-3.15

Titanium (Ti): 0.35-0.85

Iron (Fe): ≤2

Manganese (Mn): ≤1.5

Sulfur (S): ≤0.01

Carbon (C): ≤0.25

Silicon (Si): ≤0.5

Physical & Mechanical Properties

Density (g/cm³): 8.05
Melting Point (°C): 1288-1343
Tensile Strength (Rm N/mm²): 1100
Yield Strength (Rp 0.2N/mm²): 790
Elongation at Break A5 (%): 20
Brinell Hardness (HB): /

Frequently Asked Questions (FAQ)

What makes Monel K500 so much stronger than 400?

K500 is based on nickel copper and adds 2.3-3.15% aluminum and 0.35-0.85% titanium. It is a precipitation hardening alloy that can be strengthened through heat treatment. While retaining the excellent corrosion resistance of Monel 400, the strength and hardness are significantly increased through strengthening treatment.

What are the tensile and yield strengths of Monel K500?

How does K500 achieve high strength and toughness through processing?

What occasions is Monel K500 mainly used?

K500 is an ideal choice for key high-strength corrosion-resistant components in the oil exploration, marine engineering and chemical industries. It is suitable for engineering parts that must withstand both corrosive media and high stress. Its use value is concentrated in situations where strength and corrosion resistance are both important.

To what standard is Monel K500 supplied?

The page is labeled K500. Rods and pipes are supplied according to ASTM B865, forgings according to AMS4676, plates/sheets/strips are supplied according to ASTM B564, and the welding wire is made of ERNiCu-7. The composition and performance can be checked against the corresponding standards during acceptance.

Monel copper-nickel alloy

Monel K-500

Age-Hardenable Nickel-Copper Alloy

Monel K500 (UNS N05500)

Frequently Asked Questions (FAQ)

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