Curtis Tube Fittings, Manila, Philippines, is a leading manufacturer and supplier of high-quality industrial fittings, specializing in advanced solutions for fluid and gas control. With a focus on precision engineering and durability, the company serves various industries, including aerospace, marine, and chemical processing. Among their premium products are Titanium BSP/NPT Fittings, crafted from Titanium Grade 2 and Grade 5. These fittings come in various shapes, including elbows, tees, reducers, and couplings, and offer excellent corrosion resistance, lightweight properties, and high strength, making them ideal for demanding and high-pressure applications.
Titanium BSP/NPT Fittings are generally manufactured from Titanium Grade 2 (commercially pure titanium) or Titanium Grade 5 (Ti-6Al-4V). Grade 2 is 99% titanium, having good corrosion resistance and moderate strength, whereas Grade 5 has 90% titanium, 6% aluminum, and 4% vanadium, offering greater strength and heat resistance. These fittings have tensile strength of 345 MPa (Grade 2) and 895 MPa (Grade 5) and have densities of 4.51 g/cm³ and 4.43 g/cm³, respectively. Due to their low thermal conductivity, non-magnetic properties, and oxidation resistance, they are suited for severe environments.
| Grade | Ti | C | O | H | N | Fe | Al | V |
| BSP Ti Grade5 | 90 min | – | 0.2 max | – | – | 0.25 max | 6 min | 4 min |
| NPT Ti Grade2 | 99.2 min | 0.1 max | 0.25 max | 0.015 max | 0.03 max | 0.3 max | – | – |
| Element | Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| Titanium BSP Gr. 5 | 4.43 g/cm3 | 1632 °C (2970 °F) | Psi – 138000 , MPa – 950 | Psi – 128000 , MPa – 880 | 14 % |
| Titanium NPT Gr. 2 | 4.5 g/cm3 | 1665 °C (3030 °F) | Psi – 49900 , MPa – 344 | Psi – 39900 , MPa – 275 | 20 % |
| TI GRADE | UNS | WNR. |
| GR 2 | R50400 | 3.7035 |
| GR 5 | R56400 | 3.7165 |
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Titanium BSP/NPT Fittings find extensive applications in industries that demand corrosion resistance, strength, and precision fittings. In the aerospace industry, they are utilized for fuel and hydraulic systems because of their high strength and low weight. In the marine and offshore sectors, they resist saltwater corrosion and are thus well suited for piping systems. These fittings also find use in chemical processing for the treatment of hostile fluids and in the medical industry for biocompatible systems. They also find application in power generation and the oil and gas industry for applications under high pressure.
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