Corrosion resistance

The alloy has excellent corrosion resistance in fluorine gas, hydrochloric acid, sulfuric acid, hydrofluoric acid and their derivatives. Acid medium: M400 is corrosion-resistant in sulfuric acid with a concentration of less than 85%. M400 is one of the very few important materials that can resist hydrofluoric acid. Water corrosion: In most water corrosion conditions, M400 alloy not only has excellent corrosion resistance, but also rarely suffers from pitting corrosion and stress corrosion, with a corrosion rate of less than 0.025mm/a. High temperature corrosion: The maximum temperature at which M400 can work continuously in air is generally around 600℃, and in high-temperature steam, the corrosion rate is less than 0.026mm/a. Ammonia: Due to the high nickel content of Monel 400 alloy, it can resist corrosion under anhydrous ammonia and ammoniation conditions below 585℃.

Product classification:

Monel 400 alloy

Monel 400 alloy (UNS N04400 or MCu-28-1.5-1.8 or Ni68Cu28Fe) is a nickel-based alloy material with good corrosion resistance in seawater, chemical solvents, ammonia, sulfur, chlorine, hydrogen chloride, various acidic media such as sulfuric acid, hydrofluoric acid, hydrochloric acid, phosphoric acid, organic acids, alkaline media, salts and molten salts.

Monel 400 alloy also has good mechanical properties, a wide range of operating temperatures from low temperature to high temperature, good welding performance and medium and high strength

Application: Monel 400 is mainly used in chemical and petrochemical industries and marine development. It can be used to manufacture various heat exchange equipment, boiler feed water heaters, petroleum and chemical pipelines, containers, towers, tanks, valves, pumps, reactors, shafts, etc.

Monel 401

Monel 401 is a nickel-copper alloy, mainly composed of copper (Cu) and nickel (Ni), with a nickel content of about 40-45%. In addition, it also contains a small amount of chromium (Cr) and iron (Fe).

This special combination of ingredients gives Monel 401 alloy unique characteristics.

Monel 401 alloy has excellent corrosion resistance, especially for media such as seawater, salt water and hydrofluoric acid. Therefore, it is often used in marine engineering, chemical equipment and applications in salt water environments

Monel 404 alloy

Monel 404 alloy is a single-phase solid solution Ni-Cu alloy, which has good corrosion resistance in many media environments. From slightly oxidizing media environment to neutral environment, to suitable reducing environment, it has good corrosion resistance.

Performance characteristics are as follows:

1. Monel 404 has good welding performance. It can be welded by TIG and MIG methods. It can be welded with Monel body or EniCu-7 wire and electrode; or manual arc welding and submerged arc welding; it can be welded with carbon steel and low alloy steel

2. The alloy can be machined by machining methods of traditional iron-based materials. Water coolant is used for high-speed machining. The material shrinks during machining, and the machining shrinkage allowance should be paid attention to ensure dimensional accuracy.

3. ASTM B 164 (rods, wires), ASTM B 564 (forgings), ASTM B 127 (plates, strips), ASTM B 165 (seamless pipes)

Monel 406 features:

1. Excellent corrosion resistance: Monel 406 alloy has excellent corrosion resistance, especially for seawater, salt water, acidic environment and high temperature and high pressure conditions.

2. High strength: This alloy has high mechanical strength and hardness, which makes it advantageous in applications requiring high-strength materials.

3. Anti-oxidation performance:Monel 406 alloy exhibits good anti-oxidation performance and is suitable for long-term use in high-temperature environments.

4. Low thermal expansion coefficient: Similar to other Monel series alloys, Monel 406 alloy has a low thermal expansion coefficient, which makes it stable in environments with large temperature changes.

5. Good machinability: This alloy is easy to process and form, and is suitable for a variety of processing techniques such as cold working, hot working and welding.

Monel N05500 alloy

Monel N05500 alloy is mainly composed of copper, nickel, iron and other elements. Among them, the copper content is about 63%, the nickel content is about 32%, and the iron content is about 1%. In addition, the alloy also contains a small amount of chromium, molybdenum and other elements to improve its corrosion resistance.

Performance characteristics

1. Corrosion resistance: Monel N05500 alloy has excellent corrosion resistance and can resist the erosion of various corrosive media such as acids, alkalis, and salts. Its corrosion resistance is even better in high temperature environments.

2. High temperature strength: Monel N05500 alloy has high high temperature strength and can maintain good mechanical properties in high temperature environments.

3. Good processing performance: Monel N05500 alloy has good processing performance and is easy to perform processing operations such as casting, forging, and welding.

Monel K-500

Monel 501, also known as

The main component of Monel 501 is nickel, which accounts for about 63% to 67% of the total alloy. Nickel is a silvery-white metal with good ductility and toughness. In Monel 501, nickel is used as the base metal to provide the alloy with good strength and corrosion resistance. In addition, the high ductility of nickel also makes the alloy easier to form during processing.

In addition to nickel and copper, Monel 501 also contains a small amount of aluminum and titanium. The addition of aluminum can improve the strength and hardness of the alloy, while titanium helps to refine the grain structure of the alloy and further improve its mechanical properties. The content of these elements is usually low, but the impact on the performance of the alloy cannot be ignored.

Whether it is equipment in the marine environment or pipes and containers in chemical production, Monel 501 can show its excellent performance and reliability. This makes it one of the preferred materials for engineers and designers when facing complex and harsh working environments.

Monel 505 alloy

Monel 505, also known as UNS N04405, the chemical composition of Monel 505 mainly includes nickel (Ni), copper (Cu) and a small amount of iron (Fe), manganese (Mn) and other trace elements. Among them, nickel is the main component of Monel 505, usually accounting for 63% to 67% of the total alloy. The presence of nickel not only enhances the strength and toughness of the alloy, but also improves its corrosion resistance and high temperature stability. Copper is the second largest component of the alloy, accounting for about 28% to 33%. The addition of copper enhances the corrosion resistance of the alloy, especially in reducing media such as sulfuric acid, hydrochloric acid, etc. Monel 505 is a high-strength, corrosion-resistant nickel-copper alloy. Its excellent corrosion resistance, high strength and good mechanical properties make it widely used in chemical industry, marine engineering, nuclear industry and other fields.

Alloy Application

(1) Nuclear industry is used to manufacture equipment for uranium refining and isotope separation, and pumps and valves used in hydrochloric acid production equipment

(2) In addition to its excellent mechanical properties such as high strength, corrosion resistance, and non-magnetic properties, Monel K500 (K500, NCu30-2-1, UNS N05500) alloy also has the same corrosion resistance as Monel 400. It can be used as a pump shaft material and is suitable for working under relatively harsh geological mining conditions of high-sulfur and high-wax oil layers

(3) Monel 400 is mainly used in the fields of chemistry, petrochemicals, and marine development. It can be used to manufacture various heat exchange equipment, boiler feed water heaters, petroleum and chemical pipelines, containers, towers, tanks, valves, pumps, reactors, shafts, etc.

(4) Nickel-chromium alloy (Inconel600, ALLOY600, UNS N06600). This alloy has the comprehensive properties of toughness and corrosion resistance and is widely used in the chemical industry. For example, it is used to manufacture heaters, heat exchangers, evaporators, distillation kettles, distillation towers, condensers for fatty acid processing, equipment for processing rosin acid, chemical pumps, etc.