Hardness testing to ISO 6508-1
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Incoloy 825 Stud Bolt, known by its UNS N08825 designation, is a nickel-iron-chromium alloy with the addition of molybdenum and copper. This alloy is well-regarded for its exceptional corrosion resistance, especially in aggressive environments, making it an ideal choice for applications like stud bolts.
Incoloy 825 Stud Bolts: Stud bolts are threaded rods with threads on both ends, used for fastening components together in various industrial settings. Incoloy 825 stud bolts offer numerous advantages due to their material properties:
Corrosion Resistance: Incoloy 825 is renowned for its outstanding resistance to various corrosive media, including sulfuric and phosphoric acids. This makes it an excellent choice for stud bolts used in chemical processing, marine, and oil and gas industries.
High Temperature Strength: Incoloy 825 maintains its mechanical properties at elevated temperatures. It can withstand high-temperature environments without losing its structural integrity.
Excellent Resistance to Stress Corrosion Cracking: The alloy's resistance to stress corrosion cracking is particularly valuable in applications where studs are exposed to both high stress and corrosive environments.
Weldability: Incoloy 825 is readily weldable, allowing for the easy attachment of nuts, flanges, or other components to the stud bolts. This weldability facilitates the assembly process.
Dimensional Stability: Incoloy 825 stud bolts maintain their shape and dimensions, even in harsh conditions, ensuring consistent and reliable performance.
Longevity: Thanks to its corrosion resistance and durability, stud bolts made from Incoloy 825 have a longer service life, reducing maintenance and replacement costs.
Versatility: Incoloy 825 stud bolts find applications in a wide range of industries, including chemical processing, oil and gas, and power generation, where resistance to aggressive chemicals and high-temperature stability are essential.
Specifications | ASTM B408 / ASME SB408 |
Diameter | 1/4"-3" Matric:M27 to M72 in length 2000mm |
Dimensions | DIN 975/976, ASME B18.2.1, B18.31.3, B16.5 |
DIN Standard | B.S. DIN 931, DIN 933, DIN 912, DIN 934, DIN 6923, DIN 603, DIN 7981, DIN 970, DIN916, DIN 7982, DIN 7985, DIN 913 |
UTS | NPT, UNS, UNF, UNC, UNEF, NPTF |
ISO | ISO 4033, ISO 4032, ISO 7380, ISO 4017, JIS standards |
Threads | ASME B1.1 2A/3A – 2B/3B Inch Unified Threads and B1.13M 6h-6G Metric Coarse Threads |
Type | Cold Forged, Hot Forged, Bar Stock Machined, Bar Stock Milling |
Incoloy 825 stud bolts are often used in critical applications where the integrity of fastening components is paramount. Their ability to resist corrosion, maintain mechanical strength at elevated temperatures, and resist stress corrosion cracking makes them a reliable choice for ensuring the long-term performance and safety of industrial systems and equipment.
To preserve the high standards of our selection of industrial stud bolts, 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 stud bolts.
STANDARD | UNS | WNR. | AFNOR | EN | JIS | BS | GOST | OR |
Alloy 825 | N08825 | 2.4858 | NFE30C20DUM | NiCr 21 Mo | NCF 825 | NA 16 | ЭП703 | XH38BT |
Grade | C | Mn | Si | S | Cu | Fe | Ni | Cr | Al | Ti |
Incoloy 825 | 0.05 max | 1.00 max | 0.5 max | 0.03 max | 1.50 – 3.00 | 22.00 min | 38.00 – 46.00 | 19.50 – 23.50 | 0.02 max | 0.06 – 1.20 |
Element | Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
Incoloy 825 | 8.14 g/cm3 | 1400 °C (2550 °F) | Psi – 80,000 , MPa – 550 | Psi – 32,000 , MPa – 220 | 30 % |
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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