ASTM F468/F468M UNS N06625 Inconel 625 Stud Bolts Hex Nuts
Nickel Alloy Fasteners for Extreme Corrosion & High-Temperature Service
ASTM F468 / F468M UNS N06625 stud bolts and hex nuts are manufactured from Inconel® 625, a nickel-chromium-molybdenum alloy known for its outstanding resistance to corrosion, pitting, crevice attack, and chloride stress corrosion cracking. Supplied in accordance with ASTM F468/F468M, these fasteners provide excellent mechanical strength, fatigue resistance, and long-term reliability in the most demanding environments.
Inconel 625 fasteners are widely used in offshore oil & gas, subsea systems, chemical processing, marine engineering, and high-temperature pressure equipment。
We are the professional manufacturer and exporter of UNS N06625 Stud bolt ,Inconel 625 Stud bolt,N06625 Hex bolt in china.
Inconel 625 is molybdenum, niobium main strengthening solid solution strengthening type nickel-base superalloy deformation elements, has excellent resistance to corrosion and oxidation resistance to engage, from cryogenic to 980 ºC have good tensile properties and fatigue properties, and Salt The atmosphere is under stress corrosion. Therefore, it can be widely used in the manufacture of aircraft engine parts, aerospace structural components and chemical equipment. Good processing and welding properties of the alloy.
What Is ASTM F468 / F468M?
ASTM F468 / F468M is the standard specification for nonferrous (nickel alloy) bolting materials used in corrosive and high-temperature service.
The standard covers fasteners manufactured from nickel-based alloys, including UNS N06625 (Inconel 625), and defines requirements for:
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Chemical composition
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Mechanical properties
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Heat treatment
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Dimensional tolerances
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Testing and inspection
ASTM F468 is commonly specified for critical bolting applications where corrosion resistance is essential.
Download ASTM F468 Standard PDF
UNS N06625 stud bolts, also known as Inconel® 625 stud bolts, are engineered for reliability in the harshest conditions, including offshore oil platforms, chemical processing plants, and high-temperature industrial systems.
ASTM F468/F468M UNS N06625 Inconel 625 Stud Bolts, Inconel 625 Hex bolt, UNS N06625 Hex bolt
ASTM F468-F468M
Standard Specification for Nonferrous Bolts, Hex Cap Screws, Socket Head Cap Screws, and Studs for General Use1
This specification covers the requirements for commercial wrought nonferrous bolts, hex cap screws, and studs 0.250 to 1.500 in. and socket head cap screws (including socket head cap, button head and flat countersunk head configurations) withnominal thread 0.06 (size 0) through 1.500 in. inclusive in diameter manufactured from a number of alloys in common use and intended for general service applications.
Inconel 625 Chemical Composision |
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| C | Cr | Ni | Co | Mo | Al | Ti | Nb | Fe | Mn | Si | P | S | Cu |
| No Greater Than | No Greater Than | ||||||||||||
| ≤0.10 | 20.0~23.0 | I | ≤1.00 | 8.0~10.0 | 0.40 | 0.40 | 3.15~4.15 | 5.00 | 0.50 | 0.50 | 0.015 | 0.015 | 0.07 |
| Exotic Alloy Inconel 625 stud bolt Mechanical Properties | ||||||||
| Tensile Properties | Lasting Performance | Hardness | ||||||
| θ/ºC | σb/MPa | σP0.2/MPa | δ5/% | θ/ºC | σ/MPa | t/h | δ5/% | |
| Greater Than | Greater Than | |||||||
| 20 | 830 | 410 | 30 | 815 | 114 | 23 | 15 | HB≤290 |
UNS N06625 Inconel Stud Bolts specification
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Material: Nickel-Chromium-Molybdenum alloy (UNS N06625 / Inconel 625)
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Standards: ASTM B446 / B564, ASME B18.2.1, DIN 2510, ISO 261
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Sizes Available: M6 to M100 (¼″ to 4″), customized thread lengths on request
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Thread Types: Metric, UNC, UNF, BSW, or custom per drawing
·Packaging Detail: 20-25kgs per carton, 36-48 cartons per pallet or according to customer’s requirement.
·Customer Service: 24-ours standby, Critical listening your every suggestion and feedback ASAP.
| Commodity | Size | Rating | ASTM Specification |
| Stud Bolts | 1/2″ – 4″ | Any Length | ASTM 468 |
1. Standard: DIN975/DIN976, ASME/ANSI
2. Grade: Inconel 625 ,UNS N06625 , 2.4856 studs bolt
3. Material: Inconel 625 ,UNS N06625 , 2.4856 studs bolt
4. Colour: Bright
5. Package: Bulk in 25 kg carton, then in pallet
6. Delivery time: 35days
| Inconel series | Inconel600/601/617/625/718/X750 |
Inconel 625 vs Inconel 718 Fasteners
| Item | Inconel 625 | Inconel 718 |
|---|---|---|
| Strength | High | Very high |
| Corrosion Resistance | Excellent | Excellent |
| Heat Treatment | Solution annealed | Aged |
| Typical Use | Corrosion-critical | HPHT & subsea |
