Inconel 625 Tube Fittings are top-notch components crafted for secure, leak-proof connections in tough fluid and gas systems. Made from a nickel-chromium-molybdenum alloy, these fittings boast remarkable resistance to corrosion, oxidation, and extreme temperatures. Their outstanding strength and stability make them perfect for high-pressure applications, aggressive chemicals, and thermal cycling. Inconel 625 Tube Fittings deliver reliable performance in critical sectors like aerospace, marine engineering, chemical processing, power generation, and oil & gas, where durability and safety are paramount.
These fittings are primarily made of nickel and chromium, with notable amounts of molybdenum and niobium that boost their strength and resistance to corrosion. This alloy excels at resisting pitting, crevice corrosion, and stress corrosion cracking in harsh environments. Mechanically, these fittings showcase high tensile strength, excellent fatigue resistance, and stability across a broad temperature range. They maintain their integrity under high pressure and extreme heat, making them suitable for the toughest industrial conditions.
| Specifications | ASTM B366 / ASME SB366 |
|---|---|
| Size | 1/16 in. to 2 in. & 2mm to 50 mm. |
| Dimensional Range | 1/16 to 2 inches (imperial); 2 to 50 mm (metric) |
| Working Pressures | Upto 2000 to 6010 PSI |
| Thread Type | NPT – ASME B1.20.1, SAE AS71051 | ISO/BSP Parallel – ISO 228 | ISO/BSP Tapered – ISO 7, BS EN 10226-1 | SAE (Unified) – ASME B1.1 |
| End Connections | NPT, ISO/BP, SAE/MS, AN, weld ends, port connectors, sanitary flanges, tube adapters |
| Types | Tube to Union, Tube to Male, Tube to Female, Instrument Pipe Fittings, Accessories |
| Equivalent To | SWAGELOK, PARKER, DK-LOK, HOKE |
| Max Working Pressure | 8MPa | 1200psi Depending on The Tubing Material |
| Working Temperature | -40°C—250°C | -40°F—482°F Depending on The Tubing Material |
| Configurations | Straights, elbows, tees, crosses, caps, plugs, nuts and ferrules Chromatograph and Column End |
| Tube Fitting uses & application |
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| Material Test Certificates (MTC) for Tube Fitting as per EN 10204 3.1 and EN 10204 3.2, Test Certificates certifying NACE MR0103, NACE MR0175 | |
| Grade | C | Mn | Si | S | Al | Ti | Fe | Ni | Cr |
| Inconel 625 | 0.10 max | 0.50 max | 0.50 max | 0.015 max | 0.40 max | 0.40 max | 5.0 max | 58.0 min | 20.0 – 23.0 |
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 8.4 g/cm3 | 1350 °C (2460 °F) | Psi – 1,35,000 , MPa -930 | Psi – 75,000 , MPa – 517 | 42.5 % |
| STANDARD | UNS | WNR. | AFNOR | EN | JIS | BS | GOST | OR |
| Inconel 625 | N06625 | 2.4856 | NC22DNB4M | NiCr22Mo9Nb | NCF 625 | NA 21 | ХН75МБТЮ | ЭИ602 |
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Inconel 625 Tube Fittings are widely utilized in industries that demand superior corrosion resistance and high mechanical strength. You’ll often find them in chemical plants, offshore and subsea equipment, aerospace fuel and hydraulic systems, nuclear reactors, marine exhaust systems, and high-temperature processing units. Their ability to endure seawater, acids, oxidizing conditions, and elevated temperatures makes them perfect for critical flow control applications. These fittings guarantee safe, reliable, and long-lasting operation in environments where standard materials might fail, making them essential components in advanced engineering systems.
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