Nickel Alloy Wires Nickel Copper Alloy Good Ductility Temrmal Conductivity Monel K-500/400
Monel K-500 and Monel 400 are two types of nickel-copper alloys, each possessing unique properties that make them suitable for various industrial applications, particularly where resistance to corrosion and high strength are required.
- Composition: Monel 400 alloy is composed of roughly 63% nickel (plus or minus 2.5%) and 28-34% copper, with small amounts of iron and manganese. The rest is other elements.
- Properties: Monel 400 exhibits excellent resistance to corrosion in many environments, including seawater, hydrofluoric acid, sulfuric acid, and alkalies. It is also characterized by good ductility and thermal conductivity.
- Applications: Due to its resistance to deterioration and the marine environment, Monel 400 is typically used in marine engineering, chemical and hydrocarbon processing equipment, valves, pumps, shafts, fittings, fasteners, and heat exchangers.
- Composition: Monel K-500 contains the same levels of nickel and copper as Monel 400, but with additions of aluminum (2.3-3.15%) and titanium (0.35-0.85%), which are precipitated during controlled thermal processing. This gives it greater strength and hardness.
- Properties: Besides inheriting the excellent corrosion resistance of Monel 400, K-500 also provides greater strength and hardness. It has good resistance against sour-gas environments and is non-magnetic at temperatures as low as -200°F (-128°C).
- Applications: Monel K-500 is employed in more strenuous applications that require additional strength and hardness. These include oil and gas extraction, pump shafts, impellers, drill collars, surgical instruments, springs, and marine propeller shafts.
Both alloys are difficult to machine due to their high strength and work hardening rate, requiring appropriate tooling and machining practices to be adopted. Despite their high initial cost compared to other materials, their durability and longevity often make them a cost-effective choice for many high-performance applications.
For more information,please download it.
DINGSCO Nickel Alloys Catalog.pdf
The following table lists only some of the grades:
Grade | UNS | DIN |
Monel 400 | N04400 | W.Nr. 2.4360 |
Monel K-500 | N05500 | W.Nr. 2.4375 |
Inconel 625 | N06625 | W.Nr. 2.4856 |
Inconel 718 | N07718 | W.Nr. 2.4668 |
Inconel X-750 | N07750 | W. Nr. 2.4669 |
Inconel 600 | N06600 | W.Nr. 2.4816 |
Inconel 601 | N06601 | W.Nr. 2.4851 |
Incoloy 825 | N08825 | W.Nr. 2.4858 |
Incoloy A-286 | S66286 | W.Nr.1.4980 |
Hastelloy C-276 | N10276 | W.Nr.2.4819 |
Hastelloy C-22 | N06022 | W.Nr.2.4602 |
Hastelloy C-4 | N06455 | W.Nr.2.4610 |
Hastelloy B-3 | N10675 | W.Nr.2.4600 |
Hastelloy X | N06002 | W.Nr.2.4665 |
Hastelloy B-2 | N10665 | W.Nr.2.4617 |

