Monel Pipe Fittings
Stellanox Steel manufactures and supplies high-performance Monel Pipe Fittings designed for extreme environments involving corrosive fluids, seawater, high pressures, and elevated temperatures. Made from premium Monel 400 and Monel K500, these fittings offer exceptional resistance to acids, alkalis, and chloride-induced corrosion, making them ideal for marine, offshore, chemical, oil & gas, and power plant piping systems.
Our Monel pipe fittings are available in butt weld, socket weld, threaded, and flanged types, adhering to global standards like ASME B16.9, B16.11, and ASTM B366.
What are Monel Pipe Fittings?
Monel Pipe Fittings are used to connect, redirect, or terminate pipe segments in systems where conventional alloys fail due to saltwater exposure, acidic media, or thermal cycling. These fittings combine the toughness and strength of Monel with precision engineering to deliver leak-proof performance, even in the most corrosive and demanding environments.
They are ideal for small to medium diameter piping systems across chemical plants, desalination facilities, and marine infrastructure.
| Products |
|---|
|
Stainless Steel |
|
Carbon Steel |
|
Duplex Stainless Steel |
|
Super Duplex Stainless Steel |
|
Alloy Steel |
|
Titanium |
|
Hastelloy |
|
Inconel |
|
Monel |
|
Aluminium |
|
Copper |
|
Pure Nickel |
|
Flanges |
|
Forged Fittings |
|
Valves |
|
Fasteners |
Key Features
Superior Resistance to Seawater, Hydrofluoric & Sulfuric Acids
High Tensile and Yield Strength
Withstands Extreme Temperature Fluctuations
Available in Butt Weld, Socket Weld, Threaded, and Flanged Ends
Non-Magnetic in Annealed Condition
Complies with ASME, ASTM, DIN, ISO, and NACE Standards
Grades
- Monel 400 Pipe Fittings
- Monel K500 Pipe Fitings
Specification
| Property | Details |
|---|---|
| Product | Monel Pipe Fittings |
| Grades Available | Monel 400, Monel K500 |
| Fitting Types | Elbows, Tees, Reducers, Crosses, Caps, Stub Ends, Unions, Couplings |
| Connection Types | Butt Weld, Socket Weld, Threaded (NPT/BSP), Flanged |
| Size Range | ½" NB to 24" NB |
| Pressure Ratings | 150#, 300#, 600#, 900# |
| Standards | ASME B16.9, B16.11, MSS SP-43, ASTM B366, EN 10253 |
| Testing & Certification | EN 10204 3.1/3.2, PMI, Hydro, IGC, UT, NACE MR0175 |
Chemical Composition
| Element | Composition (%) |
|---|---|
| Nickel (Ni) | ≥ 63.0 |
| Copper (Cu) | 28.0 – 34.0 |
| Iron (Fe) | 2.0 – 2.5 |
| Manganese (Mn) | ≤ 2.0 |
| Carbon (C) | ≤ 0.30 |
| Silicon (Si) | ≤ 0.50 |
Mechanical Properties
| Property | Value |
|---|---|
| Tensile Strength | ≥ 550 MPa |
| Yield Strength | ≥ 170 MPa |
| Elongation | ≥ 35% |
| Hardness | ≤ 65 HRB |
| Density | ~8.80 g/cm³ |
Equivalent Grades
| Standard | Equivalent Grade |
|---|---|
| ASTM | B366 |
| UNS | N04400, N05500 |
| DIN / EN | 2.4360, 2.4375 |
| ISO | NiCu30Fe |
Weight
| Fitting Type | Size (inches) | Approx. Weight (kg) | Connection Type |
|---|---|---|---|
| 90° Elbow LR | 1" | 0.28 | Butt Weld |
| 90° Elbow LR | 2" | 0.63 | Butt Weld |
| Equal Tee | 2" | 0.82 | Butt Weld |
| Equal Cross | 2" | 1.20 | Butt Weld |
| Concentric Reducer | 3" × 2" | 1.60 | Butt Weld |
| End Cap | 2" | 0.40 | Butt Weld |
| Stub End | 3" | 1.10 | Lap Joint |
| Threaded Coupling | 1" | 0.44 | Threaded |
| Threaded Coupling | 2" | 0.92 | Threaded |
| Union (Threaded/SW) | 1" | 0.68 | Threaded/SW |
| Union (Threaded/SW) | 2" | 1.38 | Threaded/SW |
Applications
Marine Engineering: Seawater piping, condensers, saltwater scrubbers
Chemical Processing: Acid handling lines, reaction systems, evaporator connections
Oil & Gas: Offshore pipeline manifolds, downhole tool fittings, separator systems
Power Generation: Boiler feed lines, cooling loops, condensate return
Nuclear Plants: Heat recovery piping, containment systems
Desalination Plants: High-salinity brine lines, reverse osmosis feed lines
Benefits
Immune to Chloride, Brine, Acid & Alkali Attack
Performs in High-Pressure and High-Heat Applications
Long-Term Performance = Low Lifecycle Cost
Weldable, Machinable, and Easy to Install
Globally Certified for Mission-Critical Piping Systems
2025 Stellanox Steel |