Hardness testing to ISO 6508-1
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Incoloy 925 Fasteners are hardware components made from a nickel-based superalloy known as Incoloy 925. This alloy is specifically designed to offer exceptional strength, corrosion resistance, and high-temperature performance. The chemical composition of Incoloy 925 typically includes 42-46% nickel, 22-24.5% chromium, 1.5-3% iron, 0.03% carbon, 0.5-1.9% molybdenum, 0.1-0.6% copper, 0.03% sulfur, 1.5-3% titanium, 0.5-1% aluminum, 0.1-0.5% silicon, and small amounts of other elements like manganese and phosphorus.
One of the key features of Incoloy 925 Fasteners is their outstanding mechanical strength and toughness. This alloy is precipitation hardened, which means it gains strength through heat treatment processes. As a result, Incoloy 925 Fasteners offer excellent resistance to deformation, making them ideal for applications that require high tensile and yield strength at elevated temperatures.
Corrosion resistance is another significant advantage of Incoloy 925 Fasteners. The combination of nickel, chromium, and molybdenum provides excellent resistance to a wide range of corrosive environments, including harsh acids, seawater, and sour gas (containing hydrogen sulfide). This makes Incoloy 925 Fasteners suitable for use in aggressive environments encountered in oil and gas production, chemical processing, and offshore applications.
Specifications | ASTM F467, ASTM B805, B637 / ASME SF467, ASME SB805, SB637 |
Standard | DIN, ASTM, BS and all International Standards |
Size | M3 to M90 |
Length | 10mm to 1000mm |
Dimensions | DIN 931, 933, 934, 7991, 976, 125, ASME B18.2.1, B18.3 |
Threads available | UNF, BSW, BSF, METRIC, UNC, or as required |
Threads Configuration | ASME B1.1 2A/3A – 2B/3B Inch Unified Threads and B1.13M 6h-6G Metric Coarse Threads |
Form | Hex, Threading, Square, Round as per Gauge Etc. |
Head | Hex, Square, Round, Hex flange, Flat, T-head & Triangular etc. |
Neck type | Hex, Square, Triangular, Oval & Knurled etc. |
Surface Coating | Black Oxide, Cadmium, Galvanized, Teflon, Xylan, Zinc, Others Upon Request |
Manufacturing Process | Wire Drawing, Cold Heading, Insert tapping, Heat Treatment, Surface Plating, Inspection, Packing. |
Incoloy 925 Fasteners find extensive applications in the oil and gas industry, particularly in downhole and subsea environments. They are used in wellhead components, valves, and other critical equipment subjected to corrosive conditions and high-pressure, high-temperature (HPHT) environments. Additionally, these fasteners are utilized in chemical processing plants, where their resistance to corrosive chemicals is crucial for reliable and safe operation. The aerospace industry also benefits from Incoloy 925 Fasteners, employing them in jet engines and gas turbines due to their ability to withstand high temperatures and corrosive combustion environments.
To preserve the high standards of our selection of industrial fasteners, we have always adhered to a systematic quality management process.
Our staff of experts is vibrant and talented, and they have always been our largest supporters and contributors to our success. Our vision is to create a world of fasteners.
STANDARD | UNS | WNR. |
Alloy 925 | N09925 | - |
Grade | Ni% | Cr% | Fe% | Mo% | Cu% | Ti% | Al% | Mn% | Si% | Nb% | C% | S% |
Incoloy 925 | 42.0-46.0 | 19.5-22.5 | Min 22 | 2.5-3.5 | 1.5-3.0 | 1.9-2.4 | 0.1-0.5 | Max 1.0 | Max 0.5 | Max 0.5 | Max 0.03 | Max 0.03 |
Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
8.08 g/cm3 | 1311°C-1366 °C | 685 MPa | 271 MPa | 56% |
Hardness testing to ISO 6508-1
Nut proof load testing to ISO 898-2
Suitability for preloading to EN 14399-2
Calibrated gauges and tools
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