Tricon Steel & Alloys is a leading manufacturer, supplier, and exporter; we offer Inconel 625 Fasteners, renowned for their exceptional corrosion resistance and high-temperature performance.

Inconel 625 fasteners are a type of high-performance fastening solution renowned for their exceptional corrosion resistance, high tensile strength, and versatility across various applications. Composed primarily of nickel-chromium alloy with additions of molybdenum, niobium, and tantalum, these fasteners exhibit superb resistance to both oxidising and reducing environments, making them ideal for use in harsh conditions such as chemical processing, marine environments, aerospace applications, and high-temperature settings. The unique composition of Inconel 625 imparts excellent resistance to crevice corrosion, pitting, and stress-corrosion cracking, further enhancing its suitability for demanding industrial environments.

The exceptional mechanical qualities of Inconel 625 fasteners, such as their high tensile and yield strengths and good fatigue resistance, are one of their main selling points. These qualities allow them to endure heavy loads and vibrations without losing integrity. Because of their strength and resistance to corrosion, they are invaluable in demanding applications where durability and dependability are crucial. Furthermore, they resist high temperatures—up to 1,800°F or 982 °C. Inconel 625 fasteners are appropriate for use in high-temperature processing and combustion settings.

Inconel 625 fasteners undergo rigorous testing to ensure industry standards and specifications compliance. Common tests conducted on these fasteners include mechanical testing to assess tensile strength, yield strength, and elongation properties. Additionally, hardness tests are performed to evaluate the material's resistance to deformation under applied loads. Corrosion testing, such as salt spray testing and exposure to corrosive environments, is also carried out to validate the material's corrosion resistance performance. Furthermore, non-destructive testing methods like ultrasonic testing and magnetic particle inspection are employed to detect internal defects and ensure the integrity of the fasteners.

Inconel 625 Fasteners

Aerospace, marine, chemical processing, oil and gas extraction, and power generation industries use Inconel 625 fasteners. They are frequently utilised in equipment like valves, pumps, flanges, and turbines—where dependable operation in corrosive and hot environments is crucial. Inconel 625 fasteners are the preferred option for demanding engineering applications because they are essential to maintaining industrial operations' safety, dependability, and efficiency—whether in chemical reactors, offshore drilling rigs, or aircraft engines.

Inconel 625 Fasteners Specifications

Standard ASTM B166 / ASME SB166
Bolt / Screw Size M3 – M56 | 3/6″ to 2″ | Custom Sizes
Nuts Size M3 – M56 | 3/6″ to 2″ | Custom Sizes
Washers Size M3 – M56 | 3/6″ to 2″ | Custom Sizes
Machine Screws Size M1.6 – M12
Self Tapping Screw Size No.2 – No. 14
Length 3 mm to 200 mm
Threads UNF, BSW, BSF, METRIC, UNC, or as required
Fasteners
  • DIN : DIN 934, DIN 931, DIN 970, DIN 933
  • UTS : UNEF, NPT, UNC, UNS, UNF, NPTF
  • ISO : JIS standards, ISO 4033, ISO 4032,
  • ANSI – American National Standards Institute
  • ASME B18.5
  • ANSI B 28.2.4 1M
  • as per defined in ASME B16.5 standard Stud Bolt length
  • ANSI B 18.2.4 2M
  • as per defined in ASME B18.2.2 Hex nuts
Form Hex, Threading, Square, Round as per Gauge Etc.
Raw materials Source JSPL, Mukund Steel, Tata Steel, Dhamm Steel, Usha Martin,etc.
Threads Configuration ASME B1.1 2A/3A – 2B/3B Inch Unified Threads and B1.13M 6h-6G Metric Coarse Threads
Certification Dual Certified As per ASTM & ASME Codes
Dimensions DIN 931, 933, 934, 7991, 976, 125, ASME B18.2.1, B18.3
Threads Unless otherwise specified, the threads shall be rolled or cut and tapped horizontally or vertically
Test Certificate as per EN 10204 / 3.1 Manufacturer Test Certificate
Additional Certifications PED 97/23/EC Certified, Merkblatt AD 2000 W2 Certified
Production Process M24-M100: hot forging , M2-M24: Cold Froging, for custom-made connecting element machining and CNC
Types Bolts, Nuts, Stud Bolts, Washers, Threaded Rod, Anchor Fasteners, Eye Bolt, Stud, Cotter Pin, Socket Screw, Fine Fasteners & Spares, Foundation Fasteners, Hexagon Castle Nuts, Hexagon Domed Cap Bolts, Hexagon Thin Nuts etc.

Inconel 625 Fasteners Manufacturing Process

Cold Forging

This initial process is a cold forging process used to produce a near net shape work billet. An important consideration in cold forging is the tendency for the bar tobolts Manufacturing Process buckle if its unsupported length to diameter ratio is too high. This ratio usually is limited to less than 4:1 but with suitable dies, therefore, cold forging is the most likely production method because bolts have a large head-to-shank ratio, they are longer than 1½ times their diameter, bolts have multiple diameters and finally require a geometrical shap

Thread rolling

The next process applied to the bottom of the work billet is a bulk deformation process known as "thread rolling". This type of cold-forging process is used bolts Manufacturing Processbecause cylindrical can easily have thread applied by rolling the work billet through two dies. The thread rolling process is usually chosen over machining because thread rolling provides higher production rates, more effective material usage, stronger thread due to work hardening and finally better fatigue resistance because the work billet undergoes compressive stresses during the rolling process.

Blackening and Galvanization

The final process induced on the now almost complete bolt is the application of an anti-corrosive layer, to stop oxidation. The usual process is called "blackening"; Either process chemically or physically coats the surface of ferrous metals, creating a strong barrier against humidity and corrosion. Hot Blackening is most popular & common blackening processes:

Hot Blackening

Hot blackening involves dipping the bolt into six different tanks. The bolt is usually "dipped" by automated part carriers for transportation between tanks. These tanks contain, in order, alkaline cleaner, water, caustic soda at 450°C to 500°C and finally the sealant, which is usually crude oil. The caustic soda bonds chemically to the surface of the metal, creating a porous base layer on the bolt.

Fasteners Manufacturing Process

Inconel 625 Pipe Equivalent Material

STANDARD UNS WERKSTOFF NR. EN BS GOST OR JIS AFNOR
Inconel 625 N06625 2.4856 NiCr22Mo9Nb NA 21 ХН75МБТЮ ЭИ602 NCF 625 NC22DNB4M

Inconel 625 Pipe Chemical Composition

Grade

C

Mn

Si

Fe

S

Cr

Cu

Ni

625

min.

Bal

21.0

58.0

max.

0.10

1.0

0.5

Bal

0.015

25.0

1.0

63.0

Inconel Alloy 625 Pipes Mechanical Properties

Grade

Tensile Strength (MPa) min

Yield Strength 0.2% Proof (MPa) min

Elongation (% in 50mm) min

Hardness

Rockwell B (HR B) max

Brinell (HB) max

625

Psi – 95,000 , MPa -655

Psi – 45,000 , MPa – 310

40

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Types Of Inconel 625 Fasteners

Bolt

Inconel 625 Bolt

Nut

Inconel Alloy 625 Nut

Screws

Inconel 625 Screws

Washers

Inconel 625 Washers

Stud Bolts

Inconel 625 Stud Bolts

Anchor Bolts

Inconel 625 Anchor Bolts

Studs

Inconel Alloy 625 Studs

Threaded Rod

Inconel 625 Threaded Rod

We also supply Inconel 625 Fasteners at the best price. You can check our latest Inconel Alloy 625 Fasteners price list. Contact Tricon Steel & Alloys today for a best offer & competitive quotation Of Inconel Alloy 625 Fasteners.

What Industries Use Inconel 625 Fasteners ?

Export Countries

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