The Inconel 725 Fasteners is manufactured by using nickel-chromium-molybdenum alloy material which is known as UNS N07725 and precipitation hardening used so as to obtain excellent tensile strength and excellent resistance to seawater corrosion, chloride corrosion, sulfides stress corrosion cracking and aggressive chemical environments. There are various types of products which include the hex bolts, nuts, screws, threaded rods, and stud bolts. These products are used in the offshore, marine and oil & gas and chemicals process industry.
API 6CRA Inconel 725 Fasteners - Overview
Inconel 725 fasteners are precipitation-hardened, nickel-alloy fasteners with a high strength designed for high-performance use. These fasteners, constructed from UNS N07725 / Inconel Alloy 725, were specifically designed for service where severe corrosion to the sea water, hydrogen embrittlement, sulfide stress cracking, pitting, and crevice corrosion is prevalent. The mechanical strength, combined with the corrosion-resistant nature of ASTM B166 Inconel 725 fasteners have led to the increasing usage in oil and gas, sub-sea equipment, power generation, chemical process plants, marine engineering and offshore platforms.
We are manufacturing and supplying a complete series of Inconel 725 Hex Bolts, ASME SB166 Inconel 725 Hex Nut, JIS NCF 725 Bolt, UNS N07725 Stud Bolt, JIS NCF 725 Threaded Rod, Inconel 725 Screws, Alloy 725 Heavy Hex Bolts and Inconel 725 Hex Head Screws both standard sizes and special dimensions. All products are produced with rigorous quality controls.
What is Inconel Alloy 725?
Inconel Alloy 725 is a nickel based superalloy; this is in essence Alloy 625, but with added titanium and niobium. Added titanium and niobium means that the alloy can be age hardened thus drastically increasing the mechanical strength of the alloy but maintaining its resistance to corrosion.
The alloy boasts the resistance to corrosion properties of Alloy 625 along with mechanical strength more typical of precipitation-hardened alloys performing at high levels. For these reasons Inconel 725 Fasteners are well suited to applications involving extreme pressure, aggressive chemicals, and subsea conditions.
Key Features of Inconel 725 Fasteners
- Outstanding corrosion resistance
- Excellent resistance to seawater exposure
- Superior resistance to sulfide stress cracking
- High tensile and yield strength
- Excellent fatigue resistance
- Resistance to hydrogen embrittlement
- Long service life in aggressive environments
- Excellent weldability and fabrication properties
Table of Contents
- ➤ API 6CRA Inconel 725 Fasteners - Overview
- ➤ What is Inconel Alloy 725?
- ➤ Inconel 725 Chemical Composition
- ➤ Inconel 725 Mechanical Properties
- ➤ Types of Inconel 725 Fasteners Available
- ➤ Applications of Inconel 725 Fasteners
- ➤ Manufacturing Process of Inconel 725 Fasteners
- ➤ Specifications of Inconel 725 Fasteners
- ➤ Why Choose Us for Inconel 725 Fasteners?
Inconel 725 Chemical Composition
The corrosion resistance and strength of Inconel Alloy 725 are achieved through its carefully balanced chemical composition.
| Element | Composition (%) |
|---|---|
| Nickel (Ni) | 55.00 Min |
| Chromium (Cr) | 19.00 – 22.50 |
| Molybdenum (Mo) | 7.00 – 9.50 |
| Niobium + Tantalum (Nb+Ta) | 2.75 – 4.00 |
| Titanium (Ti) | 1.00 – 1.70 |
| Iron (Fe) | Balance |
| Aluminum (Al) | 0.35 Max |
| Carbon (C) | 0.03 Max |
| Manganese (Mn) | 0.35 Max |
| Silicon (Si) | 0.20 Max |
| Phosphorus (P) | 0.015 Max |
| Sulfur (S) | 0.010 Max |
Inconel 725 Mechanical Properties
One of the major advantages of Inconel 725 Fasteners is their exceptional mechanical strength achieved through precipitation hardening.
| Property | Value |
|---|---|
| Tensile Strength | 120 ksi (827 MPa) Min |
| Yield Strength (0.2% Offset) | 85 ksi (586 MPa) Min |
| Elongation | 30% Min |
| Hardness | 28 – 40 HRC |
| Density | 8.31 g/cm³ |
| Melting Range | 1260°C – 1335°C |
| Modulus of Elasticity | 205 GPa |
Types of Inconel 725 Fasteners Available
We supply a comprehensive range of Inconel Alloy 725 Fasteners for industrial applications.
Inconel 725 Hex Bolts
Used in many areas such as offshore structures, pressure vessels, high pressure piping etc., these Hex bolts allow for higher load bearing capabilities and are an integral part of many complex designs.
ASME SB166 Inconel 725 Hex Nut
These ASME SB166 Inconel 725 Hex Nut manufactured to international standards, are perfectly threaded for strong engagements and are corrosion resistant.
UNS N07725 Stud Bolt
UNS N07725 Stud Bolt products are extensively used in refinery flanges, valves, pumps, and pressure-containing equipment.
JIS NCF 725 Bolt
Our JIS NCF 725 Bolt range is manufactured with precise dimensional tolerances and exceptional material integrity.
JIS NCF 725 Threaded Rod
JIS NCF 725 Threaded Rod products are suitable for anchoring systems, structural assemblies, and heavy-duty industrial applications.
Inconel 725 Screws
Inconel 725 Screws are designed for applications where corrosion resistance and strength are equally important.
Alloy 725 Heavy Hex Bolts
Alloy 725 Heavy Hex Bolts provide greater bearing surface area and superior clamping force for critical bolted connections.
Inconel 725 Hex Head Screws
Our Inconel 725 Hex Head Screws offer excellent installation efficiency and long-term performance in corrosive environments.
Applications of Inconel 725 Fasteners
Offshore & Subsea Industry
- Subsea wellheads
- Offshore platforms
- Underwater production equipment
- Seawater handling systems
Oil & Gas Industry
- Downhole tools
- Pipelines
- Valves and pumps
- Wellhead equipment
Chemical Processing Industry
- Pressure vessels
- Reactors
- Heat exchangers
- Storage tanks
Marine Industry
- Shipbuilding
- Marine propulsion systems
- Seawater pumps
- Offshore support vessels
Power Generation
- Nuclear facilities
- Turbine systems
- High-pressure equipment
Manufacturing Process of Inconel 725 Fasteners
To ensure premium quality and performance, our Inconel 725 Fasteners are manufactured through a controlled production process:
- Raw material inspection
- Hot forging or cold heading
- CNC machining
- Thread rolling
- Solution annealing
- Age-hardening treatment
- Surface finishing
- Quality inspection
- Mechanical testing
- Final packaging and shipment
Specifications of Inconel 725 Fasteners
| Specification | Details |
|---|---|
| Grade | Inconel Alloy 725 |
| UNS Number | UNS N07725 |
| JIS Grade | JIS NCF 725 |
| ASTM Standard | ASTM B166 |
| ASME Standard | ASME SB166 |
| Product Types | Bolts, Nuts, Screws, Washers, Stud Bolts, Threaded Rods |
| Diameter Range | M3 to M100 |
| Thread Types | Metric, UNC, UNF, BSW |
| Standards | ASTM, ASME, DIN, ISO, BS |
Why Choose Us for Inconel 725 Fasteners?
As a leading NCF 725 Fasteners Exporter in India and trusted supplier of nickel alloy fastening solutions, we provide:
- Large ready stock availability
- Competitive pricing
- Custom manufacturing options
- Fast worldwide delivery
- Complete material traceability
- Third-party inspection support
- Technical assistance for material selection
Our commitment to quality, reliability, and customer satisfaction has made us a preferred source for Inconel 725 Stud Bolts Stockists, EPC contractors, OEMs, and industrial buyers worldwide.
Related Inconel Fasteners Grades
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- Inconel 601 Fasteners
- Inconel 602ca Fasteners
- Inconel 617 Fasteners
- Inconel 622 Fasteners
- Inconel 625 Fasteners
- Inconel 686 Fasteners
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- Inconel 713c Fasteners
- Inconel 718 Fasteners
- Inconel 725 Fasteners
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Frequently Asked Questions
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