From the heart of Hamilton, New Zealand, Mason Tubefittings stands as a trusted local manufacturer and supplier of precision-engineered fluid system components. We specialize in producing robust Monel BSP and NPT fittings, crafted to meet the demanding challenges of various industrial sectors. Our commitment lies in providing durable, high-performance solutions that ensure reliability and longevity in even the most corrosive and high-stress environments, supporting New Zealand’s industries with quality and expertise.
Monel, the unique alloy at the core of these fittings, is a nickel-copper blend renowned for its exceptional strength and natural resistance to corrosion. This material offers excellent mechanical properties, maintaining its toughness and ductility across a wide range of temperatures. It performs remarkably well against seawater, acids, and alkalis, and its high tensile strength ensures these fittings can handle significant pressure, making them a superior choice for demanding applications.
| Grade | Ni | C | Al | Mn | Si | Fe | Cu | S |
| Monel BSP / NPT Fittings | 63.0 min | 0.3 max | 0.50 max | 2.0 max | 0.5 max | 1.0 – 2.5 | 28.0 – 34.0 | 0.02 max |
| Density | Melting Point | Yield Strength (0.2%Offset) | Tensile Strength | Elongation |
| 8.8 g/cm3 | 1350 °C (2460 °F) | Psi – 35,000 , MPa – 240 | Psi – 80,000 , MPa – 550 | 40 % |
| STANDARD | WERKSTOFF NR. | UNS |
|---|---|---|
| Monel BSP 400 | 2.4360 | N04400 |
| Monel NPT K500 | 2.4375 | N05500 |
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The superior corrosion resistance of Monel BSP and NPT fittings makes them indispensable in harsh environments. They are widely used in marine applications for seawater piping systems, on offshore platforms, and within chemical processing plants handling corrosive substances. You’ll also find them in oil and gas equipment, power generation facilities, and specialised valves and pumps where reliability is non-negotiable, ensuring system integrity where ordinary materials would quickly fail.
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