Inconel 625 Fasteners are made up of UNS N06625 (Werkstoff No. 2.4856), an alloy of nickel, chromium, molybdenum, and niobium, selected for fasteners exposed to mechanical stress and corrosive environments. The material is reinforced through solid solution strengthening through molybdenum and niobium additions, without the requirement for precipitation hardening. The hex bolt, heavy hex nut, stud bolt, socket head cap screw, washers and precision machined versions of these fasteners are all manufactured according to application needs. Manufacturer, stockist and exporter of Inconel 625 Fasteners in India, Jade Alloys is an ISO 9001:2015 certified company manufacturing the Inconel 625 Fasteners as per the applicable ASTM and ASME specifications with heat-number traceability. For critical projects, Mill Test Certificates and third-party inspection documentation can be provided.
Specifications of Inconel 625 Fasteners
| Parameter | Specification Details |
|---|---|
| Specifications | ASTM B166 / ASME SB166 |
| Standard | DIN, ISO, JIS, GB, IS, BS, ASTM and all International Standards |
| Size | M3 – M100 | 3/6″ – 4″ | Custom Sizes |
| Fasteners Length | 3 mm – 200 mm | Custom Sizes |
| Nuts Size | M3 – M56 | 3/6″ to 2″ | Custom Sizes |
| Washers Size | M3 – M56 | 3/6″ to 2″ | Custom Sizes |
| 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 Treatment | Passivation / plain |
| Others Factor | OEM, ODM, ±0.03MM tolerance |
| Manufacturing Process | Wire Drawing, Cold Heading, Insert tapping, Heat Treatment, Surface Plating, Inspection, Packing |
| Packing | IN BULK: carton, pallet, Small Boxes or customer request |
| Surface Coating | Black Oxide, Cadmium, Galvanized, Teflon, Xylan, Zinc, Others Upon Request |
| Test Certificate | As per EN 10204 / 3.1 Manufacturer Test Certificate, PED 97/23/EC Certified, Merkblatt AD 2000 W2 Certified |
| Certification | Dual Certified As per ASTM & ASME Codes |
| Delivery time | Regular product : 7-15 days, Custom product : 2-4 weeks |
| Place of Origin | India |
Chemical Composition Inconel 625 Fasteners
| Grade | C | Mn | Si | S | Al | Fe | Ti | Cr | Mo | Nb + Ta | Ni |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 625 | 0.10 | 0.50 | 0.50 | 0.015 | 0.40 | 5.0 | 0.40 | 20.0-23.0 | 8.0-10.0 | 3.15–4.15 | 58.0 min |
Mechanical Properties Inconel 625 Fasteners
| Grade | Density | Melting Point | Yield Strength (0.2% Offset) | Tensile Strength | Elongation |
|---|---|---|---|---|---|
| 625 | 8.4 g/cm³ | 1350 °C (2460 °F) | Psi – 75,000 , MPa – 517 | Psi – 1,35,000 , MPa – 930 | 42.5 % |
Equivalent Grades of Inconel 625 Fasteners
| STANDARD | UNS | WERKSTOFF NR. | AFNOR | EN | JIS | BS | GOST | OR |
|---|---|---|---|---|---|---|---|---|
| Inconel 625 | N06625 | 2.4856 | NC22DNB4M | NiCr22Mo9Nb | NCF 625 | NA 21 | ХН75МБТЮ | ЭИ602 |
Different Types of Inconel 625 Fasteners
ASME SB 564 Inconel 625 High Performance Anchor Bolts
ASTM B564 Grade 625 Threaded Expansion Anchor Bolt
DIN 2.4856 Carriage Bolts
UNS N06625 Elevator Bolt
AISI Inconel 625 U Bolts
ASTM B564 Inconel 625 Hex Bolts
ASTM B564 UNS N06625 Eye Bolts
DIN 2.4856 Bolts
DIN 2.4856 Flange Head Bolts
DIN 2.4856 Torx Bolts
Inconel 625 Countersunk Bolts
Inconel 625 Forged Hook Bolts
Inconel 625 J Bolts
Inconel 625 Stud Bolts
N06625 UNS 12-Point Flange Bolts
UNS N06625 Allen Bolts
UNS N06625 Hex Head Bolts
UNS N06625 Lag Bolts
625 Inconel 12-Point Nuts
625 Inconel Lock Nuts
625 Inconel Sleeve Nuts
AISI 625 Square Nuts
ASME SB 564 Inconel 625 Acorn Nuts
ASME SB564 Inconel 625 T Nuts
ASTM B564 Grade 625 Lug Nut
ASTM B564 Inconel 625 Hex Nuts
ASTM B564 UNS N06625 Castle Nuts
DIN 2.4856 Captive Nuts
Inconel 625 Dome Nuts
Inconel 625 Metric Nuts
Inconel 625 Nyloc Nuts
UNS N06625 Insert Nuts
UNS N06625 Rivet Nuts
ASME SB564 Inconel 625 Countersunk Screws
ASTM B564 Grade 625
ASTM B564 Inconel 625 Torx Screws
DIN 2.4856 Grub Screws
Inconel 625 Self Drilling Screws
Inconel 625 Self Tapping
UNS N06625 Roofing Screws
ASME SB564 Inconel 625 Tab Washer
ASTM B564 Grade 625 Flat Washer
ASTM B564 Inconel 625 Plain Washer
DIN 2.4856 Split Washer
Inconel 625 Lock Washer
Inconel 625 Spring Washer
Inconel 625 Star Washer
UNS N06625 Sealing Washer
UNS N06625 Square Washer
Weight Chart of Inconel 625 Fasteners
| Size (Inch) | Finished Hex | Finished Jam | Heavy Hex | Heavy Hex Jam |
|---|---|---|---|---|
| 15/8 | – | – | 1629 | 91.6 |
| 13/8 | 734 | 7.9 | 1025 | 9.3 |
| 31/4 | – | – | 11946 | 513 |
| 3/4 | – | – | 1812 | 1005 |
| 4 | – | – | 2180 | 1200 |
| 2/1 | 3.75 | 2.62 | 6.54 | 4 |
| 13/4 | 151 | 100 | 2041 | 143 |
| 11/2 | – | – | 1526 | 851 |
| 21/2 | – | – | 5643 | 322 |
| 3/4 | – | – | 738 | 429 |
| 12 | 8.3 | 17.6 | 42.5 | 23.5 |
| 8/1 | 140.3 | 24.75 | 9.2 | 32.4 |
| 4/3 | 11.9 | 7.71 | 9.3 | 11 |
| 8/5 | 7.33 | 4.93 | 11.9 | 6.96 |
| 8/7 | 19 | 12 | 29.7 | 16.7 |
| 22 | 24 | 140 | 299 | 165 |
| 17/8 | – | – | 2411 | 342 |
| 11/4 | – | – | 4192 | 272 |
| /11 | 94.3 | 60.9 | 131 | 74.8 |
| 4/1 | 154.3 | 36.1 | 78.6 | 45.8 |
| 3 | – | – | 950 | 545 |
Inconel 625 Fasteners Dimensions Chart
| Nominal Size | Clipped Width E, Min. | I.D. | O.D. | Standard [Note (1)] | Extra Thick [Note (2)] | ||||
|---|---|---|---|---|---|---|---|---|---|
| Max. | Min. | Max. | Min. | Max. | Min. | Max. | Min. | ||
| 12 | 10.8 | 14.4 | 14 | 27 | 25.7 | 4.6 | 3.1 | — | — |
| 16 | 14 | 18.4 | 18 | 34 | 32.4 | 4.6 | 3.1 | — | — |
| 20 | 17.5 | 22.5 | 22 | 42 | 40.4 | 4.6 | 3.1 | — | — |
| 22 | 19.2 | 24.5 | 24 | 44 | 42.4 | 4.6 | 3.4 | — | — |
| 24 | 21 | 26.5 | 26 | 50 | 48.4 | 4.6 | 3.4 | — | — |
| 27 | 23.6 | 30.5 | 30 | 56 | 54.1 | 4.6 | 3.4 | — | — |
| 30 | 26.2 | 33.6 | 33 | 60 | 58.1 | 4.6 | 3.4 | — | — |
| 36 | 31.5 | 39.6 | 39 | 72 | 70.1 | 4.6 | 3.4 | — | — |
| 42 | 36.7 | 45.6 | 45 | 84 | 81.8 | 7.2 | 4.6 | — | — |
| 48 | 42 | 52.7 | 52 | 95 | 92.8 | 7.2 | 4.6 | — | — |
| 56 | 49 | 62.7 | 62 | 107 | 104.8 | 8.7 | 6.1 | — | — |
| 64 | 56 | 70.7 | 70 | 118 | 115.8 | 8.7 | 6.1 | — | — |
| 72 | 63 | 78.7 | 78 | 130 | 127.5 | 8.7 | 6.1 | — | — |
| 80 | 70 | 86.9 | 86 | 142 | 139.5 | 8.7 | 6.1 | — | — |
| 90 | 78.7 | 96.9 | 96 | 159 | 156.5 | 8.7 | 6.1 | — | — |
| 100 | 87.5 | 107.9 | 107 | 176 | 173.5 | 8.7 | 6.1 | — | — |
Applications and Industrial Uses of Inconel 625 Fasteners
- Aerospace Industry
- Oil & Gas Industry
- Offshore Marine Applications
- Chemical Processing
- Power Generation
- Petrochemical Industry
- Pollution Control Equipment
- Desalination and Water Treatment
Frequently Asked Questions
1. What are Inconel 625 Fasteners?
Inconel 625 Fasteners are high-strength fasteners made from nickel-chromium-molybdenum-niobium alloy UNS N06625 for demanding environments.
2. What are Inconel 625 Fasteners used for?
They are used for joining pipes, flanges, valves, equipment, and structures exposed to high temperatures and corrosive conditions.
3. Are Inconel 625 Fasteners corrosion resistant?
Yes. They offer excellent resistance to pitting, crevice corrosion, and oxidation in aggressive environments.
4. What standards apply to Inconel 625 Fasteners?
Common standards include ASTM B446/ASME SB446 for bar and rod material and ASTM F467/F468 for fasteners.
5. Are Inconel 625 Fasteners suitable for high-temperature applications?
Yes. They retain good mechanical strength and corrosion resistance at elevated temperatures.
6. Can Inconel 625 Fasteners be used in oil and gas applications?
Yes. They are suitable for offshore, subsea, sour-service, and other corrosive oil and gas environments.
7. How are Inconel 625 Fasteners manufactured?
They are manufactured from Inconel 625 bar, rod, or wire through forming, machining, threading, heat treatment where required, and finishing.
