The most widely used grade of the hardenable Inconel nickel alloys is Inconel 718, often known as alloy 718. The alloy combines great corrosion resistance with strong strength even at high temperatures thanks to its precipitation hardening process and primary nickel & chromium makeup.
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Applications of the ASTM B637 UNS N07718 Bolts includes the following industries -
Processing of Natural Gas - During the processing of natural gas, impurities including H2S, or hydrogen sulphide, and CO2, or carbon dioxide, come into contact with the equipment. When these impurities are combined with water, they release free compounds like sulphur or carbonic acid that are deposited on the equipment's surface or walls and lead to stress-related cracking. ASTM N07718 UNS B637 Bolts are utilised in the processing of natural gas, down-hole oil shafts, and wellhead components because they are unaffected by these substances.
Additionally, UNS N07718 Bolting is used in the aerospace industry for gas turbine engines, airframe components, and liquid oxygen turbo-pumps. These Alloy 718 Fasteners operate effectively in both cryogenic and high temperatures. In spite of being exposed to extreme temperature ranges, the strength of these Inconel 718 Washers does not diminish. The Alloy 718 Bolts are used in Cryogenic tanks due to their excellent mechanical and physical performance in extremely cold environments.


Due to the nickel addition to its alloy, Inconel 718 Screws offer really good corrosion resistance in chemical processing plants. In high temperature applications like steam generators, gas turbines, rocket motors, spacecraft, pumps, tooling, and nuclear pressurised water reactors, the Inconel 718 Hex Nut also finds use. The Inconel 718 Hex Bolts are nearly twice as strong as Inconel 625 fasteners.
At temperatures as high as 1300°F or 700°C, Inconel 718 is renowned for having strong creep rupture strength. The tensile strength of these Inconel 718 Stud Bolts could be further increased by cold working in accordance with the AMS 5962 standard, despite the fact that they can withstand elevated temperatures of up to 1800°F or 982°C. According to the aforementioned standard, Inconel 718 can have a minimum tensile strength of 220ksi after being cold worked.
| Material | Inconel 718 Alloy Fasteners |
|---|---|
| Inconel 718 Fasteners ASTM / ANSI | ASTM B637 / ASME SB637 |
| Size of Inconel 718 Fasteners | M02 to M160 |
| Length of Inconel 718 Fasteners | 3 mm to 200 mm |
| Inconel 718 Fasteners Threads: | BSW, UNC, BSF, UNF METRIC, or as required |
| M3, M14, M2.5, M2, M12, M5, M6, M4, M20, M16, M30, M24, M36, M8, M10 etc. | |
| Inconel 718 Fasteners Standard: | JIS, ASTM,BS, GB, DIN, IS, ISO
DIN: DIN 931, DIN 970, 934 DIN DIN 933 UTS – Unified Thread Standard : NPTF, UNS, NPT, UNF, UNC, UNEF ISO – International Organization for Standardization : ISO 4033 ,ISO 4032, JIS standards |
| Widely Use Inconel 718 Bolts Types | Inconel 718 Hex Bolt, Square Bolt, Counter sunk Bolt, Hex Head Bolt,T Bolt, U Bolt, Eye Bolt, Lag Bolt etc. |
| Widely Use Inconel 718 Nut Types | Inconel 718 Hex Head Nut, Lock Nut Coupling Nut, Square Nut, Wing Nut, Panel Nut, Acorn Nuts, T Nut, Dome Nut, Eye Nutetc. |
| Widely Use Inconel 718 Screw Types | Inconel 718 Socket Head Screw, Threaded Screw, Socket Set Screw, Blind Rivet, Concrete Screw, Shoulder Screw, Anchor Screw, Panel Screw, Machine Screw, Hex Head Screw etc. |
| Widely Use Inconel 718 Washer Types | Inconel 718 Machine Washers, Lock Washer, Sealing Washer, Star Washers, Split Washer etc. |
| Widely Use Inconel 718 Studs Types | Inconel 718 Threaded Tod, Tie Rods, Double Ended Studs, Tie Bars etc. |
| ISO/ IN |
|
| Scope of Manufacture |
|
| Inconel 718 Fasteners In Form of: | Square, Round, Threading as per Gauge,Round Etc. |
| Test Certificate of Inconel Bolting : | EN 10204 / 3.1 |
| Finishing of Inconel 718 Fasteners: | Zinc (yellow, white, blue, black), black oxide, Dacroment, Geometry, nickel plated, anodizing, plated zinc-nickel, Stainless steel: Passivated Bright Zinc Plated (BZP), Self-Colour, Hot Dip Galvanised (HDG), Stainless Steel, Sherardized,Mechanically Applied coating and some special one like DACROMET |
| Inconel 718 Fasteners Production process | hot forging M24-M100, M2-M24: Cold Froging for Customized connecting element machining and CNC |
| Inconel 718 bolts Head drive: | Six-Lobe, Phillips/Slot, Slotted, Phillips etc |
| Origin and service-region: | European Origin of are Western European. However projects with eastern origin are possible on request. |
| Surface Coating of Inconel 718 Fasteners materials: |
|
| Top Manufacturers of Fasteners | SPAX® Screws, EBY Fastener, Sundaram Kundan, GKW, Infasco, Precision, APL, Unbrako,Etc. |
| Packing of Inconel 718 Fasteners: | In Bulk: pallet, Canton, Small Carton / Boxs / Pallet, or customer request |
| Specialized manufacturer of | Inconel 718 High Tensile Fasteners, Bolts |
| Inconel 718 Fasteners Test Certificates |
|
Inconel Alloy 718 Fasteners Price List |
Price Per Pcs. |
|---|---|
Inconel 718 Machine bolt price |
USD $5.50 |
Inconel Alloy 718 Screws price |
USD $3.55 |
Inconel Alloy UNS N07718 Nuts price |
USD $1.55 |
Inconel Alloy 718 Hex Bolt price |
USD $6.25 |
Inconel 718 Socket Head Cap Screw price |
USD $3.35 |
Inconel Alloy 718 Allen bolt price |
USD $5.25 |

|
|
Ni |
Cr |
Fe |
Mo |
Ti |
Al |
Si |
Cu |
Mn |
Cb+Ta |
C |
B |
|
MIN |
52.0 |
18.0 |
19.0 |
3.0 |
0.9 |
0.5 |
- |
- |
- |
5.0 |
0.05 |
0.009 |
MAX |
Balance |
- |
- |
- |
- |
- |
0.35 |
0.1 |
0.35 |
- |
- |
- |
Alloy
|
Common Name
|
Related Specification
|
|||
|---|---|---|---|---|---|
British
|
European
|
ASTM
|
UNS
|
||
Alloy 718
|
Inconel 718 ®
|
2.4668
|
B637
|
N07718
|
|
Temperature, °F |
70 |
Ultimate Tensile Strength, ksi |
202 |
0.2 % Yield Strength, ksi |
170 |
