Okoye Nickel Alloys stands out as a leading manufacturer and supplier of Incoloy 800, 800H, and 800HT Valves, proudly based in Kinshasa, Congo. We specialize in providing top-notch high-temperature alloy solutions tailored for demanding industrial applications. Our valves are crafted from nickel-iron-chromium alloys, known for their exceptional resistance to oxidation, carburization, and scaling, even at high temperatures. Built for both performance and durability, the Incoloy 800 series valves guarantee reliable fluid control in extreme thermal and corrosive environments. At Okoye Nickel Alloys, we offer a variety of valve configurations—gate, globe, ball, and check types—designed to meet global standards for refineries, petrochemical plants, and heat-treating equipment around the world.
Incoloy 800/800H/800HT Valves are primarily made up of nickel (30–35%), iron (at least 39.5%), and chromium (19–23%), with carefully controlled amounts of carbon, aluminum, and titanium. The “H” and “HT” versions have higher carbon content and specific aluminum-titanium levels, enhancing their creep and rupture strength. These alloys boast impressive tensile strength (up to 600 MPa) and yield strength (around 275 MPa), along with good ductility and toughness. The Incoloy 800 series valves maintain their mechanical stability and corrosion resistance at temperatures reaching up to 1100°C, making them perfect for extended use in high-stress thermal conditions.
| Material | Incoloy |
|---|---|
| Seal Material | PTFE/ RPTFE |
| Working Pressure | 1.6 – 6.4Mpa |
| Working Temperature | -29°C — +180°C |
| Availabe Size | 1/2″-4″,(DN15-DN100) |
| Available Connection | BSP/ BSPT/ NPT/ Flanged/ Welded |
| Nominal Pressure | P10/PN16 |
| Operation | Manual,Pneumatic, Electric |
| Suitable Medium | Water,Sewage,Seawater,Gas,Food,Oils,etc |
| Standards | GB9112,DIN2501,BS4504,ISO2084,ANSI125 |
| Applications | Water, Oil, Gas, |
| Nominal Diameter | DN40-DN300 handle lever DN350-DN1200 gear box |
| Operation Temperature | -10°C~150°C |
| Grade | Ni | Fe | Cr | Cu | Mn | S | Si | Ti | Al | C |
| Alloy 800 | 30.0-35.0 | 39.5 min | 19.0-23.0 | .75 max | 1.5 max | .015 max | 1.0 max | .15-.60 | .15-.60 | .1 max |
| Alloy 800HT | 30.0-35.0 | 39.5 min | 19.0-23.0 | .75 max | 1.5 max | .015 max | 1.0 max | .25-.60 | .85-1.20 | .06-.10 max |
| Alloy 800H | 30.0-35.0 | 39.5 min | 19.0-23.0 | .75 max | 1.5 max | .015 max | 1.0 max | .15-.60 | .15-.60 | .05-.10 max |
| Density | Yield Strength (0.2%Offset) | Melting Point | Tensile Strength | Elongation |
| 7.94 g/cm3 | Psi – 30,000 , MPa – 205 | 1350-1400 ℃ | Psi – 75,000 , MPa -520 | 30 – 35 % |
At Okoye Nickel Alloys, we take pride in being the largest supplier, exporter, and manufacturer of Incoloy 800/800H/800HT Valve in Kinshasa, Congo, providing cutting-edge solutions for all your piping needs. Our state-of-the-art production plants are strategically located in the Congo, allowing us to maintain a vast inventory of over 16,000 tons of premium-quality materials readily available in stock. We are dedicated to delivering superior products and services, ensuring reliability and excellence for our global clientele.
Contact us to get a quick quote for your requirement.
Incoloy 800/800H/800HT Valves find their place in various industries that require heat and corrosion resistance under high-pressure conditions. They are commonly used in petrochemical processing units, power generation systems, heat exchangers, boilers, and superheater tubing systems. Additionally, these valves are crucial in furnace components, steam reforming plants, and thermal processing equipment, where maintaining structural integrity at elevated temperatures is vital. They ensure consistent flow control and sealing performance, even when faced with fluctuating thermal cycles.
