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Monel 400 is a nickel-copper alloy (about 67% Ni – 23% Cu) that is resistant to sea water and steam at high temperatures as well as to salt and caustic solutions. Alloy 400 is a solid solution alloy that can only be hardened by cold working. This nickel alloy exhibits characteristics like good corrosion resistance, good weldability and high strength. A low corrosion rate in rapidly flowing brackish or seawater combined with excellent resistance to stress-corrosion cracking in most freshwaters, and its resistance to a variety of corrosive conditions led to its wide use in marine applications and other non-oxidizing chloride solutions.
What are the characteristics of Monel 400?
- Resistant to seawater and steam at high temperatures
- Excellent resistance to rapidly flowing brackish water or seawater
- Excellent resistance to stress corrosion cracking in most freshwaters
- Particularly resistant to hydrochloric and hydrofluoric acids when they are de-aerated
- Offers some resistance to hydrochloric and sulfuric acids at modest temperatures and concentrations, but is seldom the material of choice for these acids
- Excellent resistance to neutral and alkaline salt
- Resistance to chloride induced stress corrosion cracking
- Good mechanical properties from sub-zero temperatures up to 1020° F
- High resistance to alkalis
Grade Monel 400
MONEL is a trademark of Special Metals Corporation has made up of nickel and copper can be hardened by the cold working process. Monel 400 is famously known as Super Alloy Monel. UNS N04400 Monel Alloy has excellent forming and welding characteristics. So it can easily form into different shapes, and available in Monel 400 Buttweld Fittings & Monel 400 Buttweld Fittings.
Monel 400 pipe fittings can be weld using gas-arc welding, submerged arc welding, metal-arc welding, and gas-metal-arc welding.
ASME SB366 400 Elbow
Different industries require various piping systems with specific functions. For example, when a change in flow direction is needed, an elbow fitting is utilized. The ASME SB366 400 Elbow is a fitting that can be produced in the traditional angles or customized for a specific industry. Typically, elbow fittings are made in 22.5-degree, 90-degree, or 45-degree angles. Manufacturers use ASTM standards, such as ASTM B366, to create these high-performance nickel-copper-based fittings. The specification for Monel 400 Pipe Fittings includes shaping or forging operations like extruding, upsetting, rolling, hammering, pressing, piercing, bending, and fusion welding, as well as other important aspects of fitting manufacture.
Chemical Properties of 400 Monel Pipe Fittings
| Grade | Carbon | Manganese | Silicon | sulphur | Copper | Iron | Nickel |
| Monel 400 | 0.30 max | 2.00 max | 0.50 max | 0.024 max | 28.00 – 34.00 | 2.50 max | 63.00 min |
Mechanical Characteristics of Monel DIN 2.4360 Buttweld Fitting
| Element | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Density | Elongation |
| Monel 400 | 1350 °C (2460 °F) | Psi – 80,000 , MPa – 550 | Psi – 35,000 , MPa – 240 | 8.8 g/cm3 | 40 % |
Equivalent material of ASME SB366 Alloy 400 Fitting
| STANDARD | WERKSTOFF NR. | AFNOR | UNS | BS | GOST | EN | JIS |
| Monel 400 | 2.4360 | NU-30M | N04400 | NA 13 | МНЖМц 28-2,5-1,5 | NiCu30Fe | NW 4400 |
Specification Format of Monel 400 Fittings
| Dimensions | MSS-SP-43, ASME/ANSI B16.9 |
|---|---|
| Bending Radius | R=5D, 8D, 6D, 3D, 10D, 1D, 2D, or Custom MSS Sp-43 |
| Size Range | Sch 40s, 80s, 10s, 160s, XXS. |
| Elbows | Angle : 30deg, 45 deg, 22.5 deg, 90 deg, 180 deg, 2.5D, 3D, 4D, 1.0D, 1.5D, 2.0D, 5D, 6D, 7D-40D . Standard: MSS SP-75 DIN2605 JISB2311 JISB2312 JISB2313, ASME B16.25, ASME B16.9, ASME B16.28, BS, GB, ISO |
| Dimensions | MSS-SP-43, BS4504, BS4504, BS1560, ASME/ANSI B16.9, ASME B16.28, BS10 |
| Thickness | SCH30, STD SCH40, SCH60, XS, SCH 80, SCH10, SCH20, SCH 100, SCH 160, XXS, SCH 120, SCH 140 |
| size | Seamless Fittings: 1/2″ – 10″ Welded Fittings: 1/2″ – 48″ |
| Manufacturing process | Press, Forge, Push, Cast, etc. |
| Test Certificates | EN 10204/3.1B Raw Materials Certificate 100% Radiography Test Report Third Party Inspection Report, etc |
| Type | DN15-DN1200 |
| Connection | Welding |
| Origin & Mills | Indian, USA, Japanese, Korean, European, Ukraine, Russian |
| Specialized manufacturer of | Stub End, Reducers, Crosses, 90º Elbows, 45º Elbows, Tees, Pipe Cap, Pipe Bend |
