Inconel 625 Fasteners Supplier & Exporter
Table of Content
- Inconel 625 Fasteners Supplier & Exporter
- Inconel 625 Fasteners Specification
- Types of Inconel 625 Fasteners
- Chemical Composition of Inconel 625 Fasteners
- Mechanical Properties of Inconel 625 Fasteners
- Physical Properties of Inconel 625 Fasteners
- Equivalent Material of Inconel 625 Fasteners
- Inconel 625 Fasteners Metric Sizes
- Inconel 625 Bolt Torque Chart
- Frequently Asked Questions
- Request a Quote for Inconel 625 Fasteners
Kalpataru Piping is a leading manufacturer, supplier and exporter of Inconel 625 Fasteners that supplies precision-engineered bolts, nuts, screws, studs, threaded rods and washers to its customers in over 50 countries worldwide. Our Inconel 625 Fasteners meet the requirements of the national and international standards such as ASTM F468, ASME SF468 and AMS 5666. Being an ISO 9001:2015 certified supplier, each batch is accompanied by full material traceability and Mill Test Certificates (MTC) as per EN 10204 3.1 / 3.2. Check out our full range of Inconel Products range. Our UNS N06625 Fasteners conform to dimension standards including DIN 125, DIN 126, DIN 127, DIN 128, DIN 934, DIN 931, DIN 933, DIN 975, DIN 976, DIN 985, and many more.
Inconel 625 Fasteners Specification
| Standard Sizes | Thread Types | Studs End | Screws Head Shape |
| Imperial: 3/8″ to 2″ Metric: M3 to M56 Length: 3–200 mm | UNC, UNF, UNEF BSW, BSF, Metric | Sheared Chamfer / Flat Rounded / Saw Cut | Round Pan Button Truss |
| International Standards | Bolts Neck Type | Studs Types | Process |
| ASTM: F468 ASME: SF468 UNS: N06625 WNR: 2.4856 AMS 5666 | Knurled Square Hex / Triangular | Double-End Fully Threaded Tap-End | Hot Forging Cold Forging CNC Machined |
| Threaded Rod Thread | Screw Thread Pitch | Threaded Rod Condition | Washer Form |
| Right Hand Left Hand Both Right & Left | Coarse Threads Fine Threads | Threading Cold Drawn | Form A, B, C Form D, E, G |
| Physical Properties | Application | Surface Finish | Screw Tip Style |
| Density: 8.44 g/cm³ Melting Point: 1290–1350°C Temp Range: up to 1093°C | Aerospace Marine Chemical Nuclear | Phosphating Oxidation HDG | Rolled Dog Die / Pinch |
Inconel 625 Fasteners Types
Inconel 625 Fasteners Chemical Composition
| Element | Content | Element | Content |
| Nickel (Ni) | 58.00% min | Chromium (Cr) | 20.0% – 23.0% |
| Molybdenum (Mo) | 8.0% – 10.0% | Niobium (Nb) | 3.15% – 4.15% |
| Iron (Fe) | 5.0% max | Carbon (C) | 0.10% max |
| Manganese (Mn) | 0.50% max | Silicon (Si) | 0.50% max |
| Sulfur (S) | 0.015% max | Phosphorus (P) | 0.015% max |
Mechanical Properties of Inconel 625 Fasteners
| Properties | Values |
| Tensile Strength | 827 MPa (min) |
| 0.2% Proof Stress | 414 MPa (min) |
| Elongation | 30% (min) |
| Hardness | ≤ 145 HRB |
| Reduction of Area | 40% (min) |
Physical Properties of Inconel 625 Fasteners
| Properties | Unit | Value |
| Density | lb/in³ | 0.305 |
| g/cm³ | 8.44 | |
| Melting Range | °F | 2350 – 2460 |
| °C | 1290 – 1350 | |
| Permeability | 15.9 kA/m | 1.0006 |
| Curie Temperature | °F | < −320 |
| °C | −196 |
Equivalent Material of Inconel 625 Fasteners
The following table lists the international equivalent designations for Inconel 625 / UNS N06625 across major global standards:
| Standard | Designation |
| UNS | N06625 |
| Werkstoff Nr. | 2.4856 |
| GOST | ХН75МБТЮ |
| JIS | NCF 625 |
| EN | NiCr23Fe |
| BS | NA 21 |
| AFNOR | NC22DNB4M / NiCr22Mo9Nb |
Inconel 625 Fasteners Metric Sizes
| Types | Size Chart |
| Inconel 625 Heavy Hex Nuts | M12 to M72 |
| Alloy Inconel 625 Hex Nuts | M30 to M72 |
| Alloy 625 Hex Nylock Nuts | M30 to M64 |
| UNS N06625 Hex Castle Nuts | M12 to M72 |
| Inconel N06625 Hex Lock Nuts | M30 to M72 |
| Inconel 625 Hex Bolts | M12 to M100 |
| DIN 2.4856 Hex Cap Screws | M12 to M100 |
| Nickel 625 Socket Head Cap Screws | M30 to M72 |
| Alloy 625 Flat Washers | M12 to M72 |
| ASTM F468 UNS N06625 Stud Bolts | M12 to M72 |
Inconel 625 Bolt Torque Chart
| Diameter (Inches) | Threads (per inch) | Torque ft-lb (Dry) | Torque ft-lb (Lubricated) | |
| 1/4″ | 20 To 28 | 7.8–8.9 | 5.8–6.6 | |
| 5/16″ | 18 To 24 | 15.9–17.6 | 12.0–13.2 | |
| 3/8″ | 16 To 24 | 28.2–32.0 | 21.2–23.9 | |
| 7/16″ | 14 To 20 | 45.1–50.4 | 33.9–37.8 | |
| 1/2″ | 13 To 20 | 68.8–77.6 | 51.6–58.2 | |
| 9/16″ | 12 To 18 | 99.2–110.8 | 74.5–83.1 | |
| 5/8″ | 11 To 18 | 137.0–155.2 | 102.8–116.4 | |
| 3/4″ | 10 To 16 | 244–271 | 183–204 | |
| 7/8″ | 9 To 14 | 392–433 | 294–324 | |
| 1″ | 8 To 14 | 588–659 | 441–495 | |
| 1-1/4″ | 7 To 12 | 1024–1133 | 767–849 | |
| 1-1/2″ | 6 To 12 | 1780–2003 | 1335–1502 |
HSN Code of Inconel 625 Fasteners
| Product Description | HS Code |
| Inconel 625 Fasteners | 7318 |
Related Products
- Inconel 625 Perforated Sheets
- Inconel 625 Forged Fittings
- Inconel 625 Fasteners
- Inconel 625 Compression Tube Fittings
- Inconel 625 Pipes and Tubes
- Inconel 625 Flanges
- Inconel 625 Plates and Sheets
- Inconel 625 Buttweld Fittings
- Inconel 625 Shims
- Inconel 625 Filler Wire
- Inconel 625 Perforated Sheets
- Inconel 625 Forged Fittings
- Inconel 625 Fasteners
- Inconel 625 Compression Tube Fittings
- Inconel 625 Pipes & Tubes
- Inconel 625 Flanges
- Inconel 625 Round Bars & Wires
- Inconel 625 Plates & Sheets
- Inconel 625 Buttweld Fittings
- Inconel 625 Shims
Frequently Asked Questions
What is the difference between Inconel 625 fasteners and Incoloy 825 fasteners?
Both are nickel-based alloys offering corrosion resistance, but their performance profiles differ:
- Inconel 625 fasteners: Higher strength, stable at elevated temperatures, excellent oxidation resistance and acid resistance. Preferred in aerospace, offshore and chemical plants.
- Incoloy 825 fasteners: Good corrosion resistance particularly in sulfuric and phosphoric acid environments, but lower high-temperature strength compared to 625. Used in chemical processing, oil and gas and pollution control.
In summary, 625 is more robust and heat-resistant, whereas 825 is more cost-effective for moderate corrosion conditions.
What standards apply to Inconel 625 fasteners?
Inconel 625 fasteners standards are mainly ASTM F467 (nuts), ASTM F468 (bolts, screws and studs) and ASTM B446 (bar stock used to make fasteners). Dimensional standards include ASME B18.2.1, DIN 931/933 for bolts and DIN 934 for nuts. Forms threads are based on UNC, UNF, ISO Metric, BSW and BSF.
What is the operating temperature range of Inconel 625 fasteners?
The temperature range of Inconel 625 fasteners is between cryogenic (below minus 196 degrees Celsius) down to about 982 degrees Celsius (1800 degrees Fahrenheit). This unique selection gives them an application in either cryogenic storage systems or in hot industrial furnaces, gas turbines and chemical reactors.
Request a Quote for Inconel 625 Fasteners
Kalpataru Piping maintains ready stock of ASTM B446 / UNS N06625 Inconel 625 Fasteners in all standard and custom sizes, including bolts, nuts, washers, studs, and threaded components.
Get an immediate price for your Inconel 625 fastener requirement. Our technical team will respond within 24 hours.
