High Temperature Strength
Inconel alloys maintain mechanical strength and dimensional stability at elevated temperatures, making them suitable for turbines, aerospace engines and high-temperature equipment.
Specialty Alloy Fasteners
Inconel Fasteners Manufacturer
High-performance Inconel bolts, stud bolts, nuts, washers and custom fasteners manufactured from nickel-based superalloys for extreme temperature, corrosion-resistant and critical industrial applications.
We manufacture specialty Inconel fasteners using certified nickel alloy materials, including Inconel 600, 601, 625, 718 and X-750. Our capabilities cover standard and custom fasteners with full material traceability, engineering support and inspection documentation.
Inconel Alloy Expertise
Multiple Inconel grades for different strength, temperature and corrosion requirements.
Full Material Traceability
Heat-number traceability supported by MTC and inspection documentation.
Custom Manufacturing
Standard and drawing-based fasteners manufactured to project-specific requirements.
Overview
High-Performance Nickel Alloy Fasteners for Extreme Environments
Inconel is a family of nickel-based superalloys designed for applications requiring excellent high-temperature strength, oxidation resistance and corrosion resistance. Selected Inconel grades offer advantages over conventional stainless steels in high-temperature or corrosive service, depending on the alloy and operating conditions. These characteristics make Inconel fasteners widely used in aerospace, gas turbines, chemical processing, offshore engineering and other critical industrial applications. Different Inconel grades provide different advantages. Some grades focus on high mechanical strength, while others provide superior corrosion resistance or oxidation resistance.
Why Choose This Material
Why Inconel Is Selected for Critical Fastening Applications
Inconel fasteners are selected for demanding applications where high temperature strength, corrosion resistance and long-term reliability are essential.
Excellent Corrosion Resistance
Inconel grades offer different corrosion-resistance characteristics, with alloy 625 providing strong resistance to pitting, crevice corrosion and chloride-ion stress-corrosion cracking.
Long-Term Reliability
Inconel fasteners are selected for critical equipment where reliability, service life and resistance to extreme operating conditions are essential.
Material Selection Flexibility
Different Inconel grades allow engineers to balance strength, temperature capability and corrosion resistance according to application requirements
Inconel Grades Available for Fasteners
We manufacture Inconel fasteners from multiple nickel-based alloy grades, each offering different advantages in strength, temperature capability and corrosion resistance.
Inconel 600
UNS:
N06600
EN:
2.4816
Standards
- ASTM B166
- ASTM B564 (for forgings)
Characteristics
- Excellent oxidation resistance
- Good corrosion resistance
- High temperature stability
Applications
Heat treatment equipment, Furnace components, Chemical processing equipment
Inconel 601
UNS:
N06601
EN:
2.4851
Standards
- ASTM B166
Characteristics
- Superior oxidation resistance
- High-temperature corrosion resistance
- Good mechanical strength
Applications
Thermal processing systems, Furnace equipment, Petrochemical equipment
Inconel 625
UNS:
N06625
EN:
2.4856
Standards
- ASTM B446
- ASTM B564
- AMS 5666
Characteristics
- Excellent corrosion resistance
- Superior chloride resistance
- High pitting/crevice resistance
Applications
Offshore, Marine engineering, Chemical processing, Desalination
Inconel 718
UNS:
N07718
EN:
2.4668
Standards
- ASTM B637
- AMS 5662
- AMS 5663
Characteristics
- Very high tensile strength
- Excellent yield strength
- Superior creep resistance
Applications
Aerospace engines, Gas turbines, High-temperature equipment
Inconel X-750
UNS:
N07750
Standards
- ASTM B637
Characteristics
- High temperature stability
- Good spring properties
- Oxidation resistance
Applications
Turbine systems, Nuclear equipment, High-temperature fastening
Other Inconel Grades
Inconel 690 / Inconel 706 / Inconel 725 / Other nickel-based alloys upon request
Chemical Composition of Inconel Alloys
The chemical composition of Inconel alloys determines their strength, oxidation resistance and corrosion performance. Different alloying elements provide specific advantages for different service environments.
| GRADE | NI (%) | CR (%) | FE (%) | MO (%) | NB+TA (%) | C (%) | OTHER (%) |
|---|---|---|---|---|---|---|---|
| Inconel 600 | 72.0 min (Ni+Co) | 14.0–17.0 | 6.0–10.0 | — | — | 0.15 max | Mn 1.00 max, Si 0.50 max |
| Inconel 601 | 58.0–63.0 | 21.0–25.0 | Balance | — | — | 0.10 max | Al 1.00–1.70 |
| Inconel 625 | 58.0 min | 20.0–23.0 | 5.0 max | 8.0–10.0 | 3.15–4.15 | 0.10 max | Ti 0.40 max, Al 0.40 max |
| Inconel 718 | 50.0–55.0 (Ni+Co) | 17.0–21.0 | Balance | 2.80–3.30 | 4.75–5.50 | 0.08 max | Ti 0.65–1.15, Al 0.20–0.80 |
| Inconel X-750 | 70.0 min (Ni+Co) | 14.0–17.0 | 5.0–9.0 | — | 0.70–1.20 | 0.08 max | Ti 2.25–2.75, Al 0.40–1.00 |
Reference values are provided for general comparison only. The governing material specification and batch MTC take precedence for production and acceptance.
Typical Mechanical Properties of Inconel Alloys
Mechanical properties vary depending on alloy grade, product form, heat treatment condition and applicable specifications. The values below provide typical reference information for material comparison.
| GRADE / CONDITION | TENSILE STRENGTH (MPa) | 0.2% YIELD STRENGTH (MPa) | ELONGATION (%) |
|---|---|---|---|
| Inconel 600 — Hot-Finished, Annealed Bar | 550–690 | 205–345 | 35–55 |
| Inconel 601 — Annealed Bar | 550–790 | 205–415 | 40–70 |
| Inconel 625 — Annealed Bar Reference | 827–1034 | 414–655 | 30–60 |
| Inconel 718 — Annealed & Aged Bar, Typical Example | Approx. 1413 | Approx. 1155 | Approx. 20 |
| Inconel X-750 — Condition Dependent | Depends on condition | Depends on condition | Depends on condition |
Mechanical properties depend on product form, dimensions, material condition, heat treatment and the applicable specification. The purchase specification and actual inspection certificate shall govern the order.
How to Select the Right Inconel Grade for Fasteners?
Different Inconel grades are optimized for different operating conditions. This guide helps identify suitable alloy options based on strength, temperature capability and corrosion requirements.
| Application Requirement | Recommended Grade |
|---|---|
| Maximum strength | Inconel 718 |
| High temperature structural fastening | 718 / X-750 |
| Marine and chloride environment | 625 |
| Chemical corrosion resistance | 625 / 601 |
| Oxidation resistance | 600 / 601 |
| Aerospace applications | 718 |
Inconel Fastener Product Range
We provide a complete range of Inconel fasteners including bolts, stud bolts, nuts, washers, screws and custom components manufactured according to application requirements and customer specifications.
Inconel Hex Bolts
Product Type: Hex Head Bolts / Full Thread / Partial Thread / Custom Hex Bolts
Size Range: Standard / Custom
Thread System: Metric / UNC / UNF
Thread Type: Coarse / Fine
Standard: Dimensional Standards: ISO / DIN / ASME, as applicable, or customer drawings.
Documentation: MTC / EN10204 3.1
Inconel Heavy Hex Bolts
Product Type: Heavy Hex Bolts / Large Diameter Heavy Hex Bolts
Size Range: According to requirement
Thread System: UNC / UNF / Metric
Standard: Dimensional Standards: ISO / DIN / ASME, as applicable, or customer drawings.
Documentation: MTC / EN10204 3.1
Inconel Stud Bolts
Product Type: Fully Threaded Studs / Double End Studs / Tap End Studs / Flange Stud Sets
Diameter: Standard / Custom
Length: Custom
Thread: Metric / UNC / UNF / 8UN
Standard: Dimensional Standards: ISO / DIN / ASME, as applicable, or customer drawings.
Documentation: MTC / EN10204 3.1
Inconel Nuts
Product Type: Hex Nuts / Heavy Hex Nuts / Custom Nuts
Thread: Metric / UNC / UNF
Standard: Dimensional Standards: ISO / DIN / ASME, as applicable, or customer drawings.
Documentation: MTC / EN10204 3.1
Inconel Washers
Product Type: Flat Washers / Heavy Washers / Custom Washers
Diameter: Standard or custom
Thickness: Custom
Standard: Dimensional Standards: ISO / DIN / ASME, as applicable, or customer drawings.
Documentation: MTC / EN10204 3.1
Inconel Socket Head Cap Screws
Standard: Dimensional Standards: ISO / DIN / ASME, as applicable, or customer drawings.
Size: Custom / Standard
Drive: Internal Hex
Thread: Metric / UNC / UNF
Documentation: MTC / EN10204 3.1
Inconel Threaded Rods
Product Type: Fully Threaded Rods
Diameter: Custom
Length: Standard / Custom
Thread: Metric / UNC / UNF
Standard: Dimensional Standards: ISO / DIN / ASME, as applicable, or customer drawings.
Documentation: MTC / EN10204 3.1
Custom Inconel Fasteners & Machined Components
Product Type: Custom Bolts / Special Studs / Machined Components
Manufacturing Basis: Customer Drawing
Thread: Custom
Tolerance: Drawing requirement
Inspection: Dimensional / PMI / Mechanical testing
Need a Product Type Not Shown Here?
We also manufacture custom and project-specific fasteners according to drawings, specifications or application requirements.
Process Control
Manufacturing Excellence
A controlled six-stage production workflow supports consistent manufacturing from reviewed raw material to finished, identified and export-ready specialty-alloy fasteners.
01
Raw Material Preparation
The specified alloy grade, product form, material condition and batch identity are reviewed before cutting. Stock is prepared according to the order and selected manufacturing route.
02
Cutting & Blanking
Bars, rods or forgings are cut to the required blank size while maintaining material separation and batch identification.
03
Forging / CNC Machining
Headed fasteners are forged and machined when appropriate, while complex, low-volume or drawing-based components can be produced by precision CNC machining.
04
Thread Manufacturing
Threads are rolled or cut according to material condition, product geometry, dimensional standard and customer requirements.
05
Heat Treatment
Solution treatment, annealing, age hardening or other thermal processing is applied only when required by the alloy grade, material condition and governing specification.
06
Finishing & Packing
Finished parts are deburred, cleaned and prepared as specified, then identified and packed according to order and traceability requirements.
Quality Control
Quality Assurance & Full Traceability
Inspection and documentation are planned around the purchase specification, customer drawing and intended service. The agreed inspection scope is confirmed according to individual project requirements.
Material Verification
Material grade, heat or lot number and incoming documents are checked against the agreed order requirements before production.
Heat Number Traceability
Batch identity is maintained through production, inspection and packing so finished parts can be linked to their source material.
Dimensional Inspection
Critical dimensions, tolerances and product geometry are checked against the applicable dimensional standard or customer drawing.
Thread Inspection
Thread size, pitch and fit are verified using suitable gauges and measuring equipment. Additional profile verification can be arranged when specified.
PMI & Mechanical Testing
PMI, hardness, tensile or other testing can be performed or arranged when specified, depending on the material, test method and project requirements.
MTC / EN 10204 3.1 Documentation
MTC / EN 10204 3.1 documentation, dimensional reports, PMI reports and traceability records can be supplied when specified and applicable.
Inspection methods, sampling plans, acceptance criteria and document requirements should be confirmed before order placement.
Discuss Inspection & Documentation RequirementsIndustries Served
Applications & Industries
Our specialty-alloy fasteners support demanding projects across multiple industries. Final material selection must be based on the actual temperature, corrosion medium, mechanical load, applicable standards and required service life.
Oil & Gas
Flange bolting, valves, pressure equipment, piping systems and process units exposed to pressure, temperature or corrosive media.
Chemical Processing
Reactors, heat exchangers, scrubbers, pumps and equipment handling acids, chlorides or other aggressive process media.
Power Generation
Gas and steam turbines, boilers, furnaces, heat-treatment systems and high-temperature mechanical assemblies.
Marine & Offshore
Offshore platforms, seawater systems, marine equipment and desalination installations requiring corrosion-resistant fastening.
Aerospace
Engine, thermal and precision assemblies requiring high strength, temperature capability, low weight or controlled material performance.
Nuclear & Critical Equipment
Safety-critical bolting and engineered components requiring controlled materials, documentation and reliable long-term performance.
Not every alloy is suitable for every industry or service condition. Material suitability should be confirmed against the governing specification and actual operating environment.
Discuss Your ApplicationFrequently Asked Questions
Common questions about specialty-alloy fasteners, custom manufacturing, standards, inspection, documentation and procurement.
1. What specialty-alloy fastener products can you manufacture?
Our product range includes hex bolts, heavy hex bolts, stud bolts, nuts, washers, socket head cap screws, threaded rods and drawing-based fasteners or machined components. Availability depends on material grade, dimensions and quantity.
2. Can you manufacture non-standard parts from customer drawings?
Yes. We can review drawings for custom bolts, studs, nuts, washers, threaded parts and precision machined components. The quotation is based on material, dimensions, tolerances, heat treatment, inspection requirements and order quantity.
3. Which dimensional and thread standards can you support?
Products can be manufactured to applicable ISO, DIN, ASME and other recognized dimensional standards, or to customer drawings. Metric, UNC, UNF and other thread systems can be evaluated according to the product and specification.
4. Can you provide MTC and EN 10204 3.1 documentation?
Material test certificates and EN 10204 3.1 documentation can be supplied when specified and applicable to the ordered material and product. Certificate requirements should be confirmed before order placement.
5. Is PMI or third-party inspection available?
PMI and third-party inspection can be arranged when required. The test method, sampling plan, acceptance criteria and reporting requirements should be defined before production.
6. How do you maintain material traceability?
Heat or lot identification is maintained from incoming material through production, inspection and packing, subject to the agreed order and documentation requirements.
7. Can you supply bolts, nuts and washers as matched bolting sets?
Yes. Complete bolting sets can be supplied when requested, with thread compatibility, material selection, inspection and packaging defined for the order.
8. What are your MOQ and lead time?
MOQ and lead time depend on alloy grade, raw-material availability, product size, manufacturing route, heat treatment, testing and order quantity. Made-to-order specialty-alloy fasteners normally require a technical review before confirmation.
Request for Quotation
Custom & Standard
Inconel Fasteners,
Direct From
Manufacturer.
Send us your Inconel fastener specifications, standards or drawings. Our engineering team will review your requirements and provide a detailed project-specific quotation.
ISO 9001
EN 10204 3.1
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