Inconel 718 Hexagon Rods
Applications for Inconel 718 hexagon rods span aerospace engine components, marine hardware, oil & gas drilling equipment, power generation turbines, chemical processing plant components, and industrial machinery where durability under high temperature and corrosion is essential. Their performance in demanding environments has made these rods a preferred choice for engineers and manufacturers seeking reliable, high-strength, corrosion-resistant solutions worldwide..
Rose Metal Industries provides full traceability with Mill Test Certificates (MTC), chemical analysis, and third-party inspection on request. Equivalent grades, such as UNS N07718 and ASTM/AMS 5662/5663/5664, ensure compliance with international project specifications. The company’s strong logistics network ensures timely delivery across South India, including Tamil Nadu, Andhra Pradesh, Karnataka, Telangana, Puducherry, and Andaman & Nicobar Islands, as well as global export markets..
Mechanically, these hexagon rods exhibit high tensile strength (≥1275 MPa), yield strength (≥1035 MPa), and hardness (up to 363 HB) depending on the heat treatment condition. The elongation is typically ≥12%, ensuring good ductility for machining and forming operations. This combination of strength and flexibility makes Inconel 718 hexagon rods suitable for critical load-bearing applications such as turbine shafts, bolting for pressure vessels, subsea components, and nuclear plant internals..
Chemically, Inconel 718 consists of 50–55% Nickel, 17–21% Chromium, 2.8–3.3% Molybdenum, and 4.75–5.5% Niobium + Tantalum, with controlled amounts of Titanium, Aluminum, and Carbon. This composition gives the alloy excellent resistance to oxidation, high-temperature creep, and corrosion — critical for harsh environments such as offshore marine applications, high-pressure steam turbines, and chemical reactors. The alloy performs reliably even in chloride-rich atmospheres, making it ideal for coastal regions like Tamil Nadu and Andaman Islands.
Specifications & Standards
| Property | Typical / Standard |
|---|---|
| Grade | Inconel 718 (UNS N07718) |
| Standard Specifications | ASTM B637, AMS 5662 / AMS 5663 / AMS 5664, EN / ASME equivalents |
| Forms Available | Hexagon rods, billets, extruded bars |
| Surface Finish | Hot‑rolled, Bright, Black, Peeled, Centerless Ground |
| Testing & Certification | MTC (EN 10204 3.1/3.2), PMI / Chemical Analysis, Mechanical & Hardness Tests, NDT on Request |
Chemical Composition (Typical Ranges — wt. %)
| Element | Range (%) |
|---|---|
| Nickel (Ni) | 50.0 – 55.0 |
| Chromium (Cr) | 17.0 – 21.0 |
| Molybdenum (Mo) | 2.8 – 3.3 |
| Niobium + Tantalum (Nb + Ta) | 4.75 – 5.50 |
| Titanium (Ti) | 0.65 – 1.15 |
| Aluminum (Al) | 0.20 – 0.80 |
| Carbon (C) | ≤ 0.08 |
Mechanical Properties (Annealed / Aged Condition)
| Property | Value / Condition | Notes |
|---|---|---|
| Tensile Strength (UTS) | ≥ 1275 MPa | Depending on heat treatment |
| Yield Strength (0.2%) | ≥ 1035 MPa | High strength after aging |
| Elongation | ≥ 12% | Good ductility for machining/welding |
| Hardness | Up to 363 HB | Condition dependent |
Equivalent Grades & Designations
| Designation System | Grade / Code |
|---|---|
| UNS | N07718 |
| Werkstoff / EN | 2.4668 / Alloy 718 |
| AMS / ASTM | AMS 5662 / 5663 / 5664, ASTM B637 |
Dimension Chart — Hexagon Rods (Common Sizes)
| Size (across flats, mm) | Approx. Width (mm) | Length (mm) | Tolerance |
|---|---|---|---|
| 8 mm | 8 | 1000–3000 | ±0.1 – 0.5 mm |
| 12 mm | 12 | 1000–3000 | ±0.1 – 0.5 mm |
| 16 mm | 16 | 1000–3000 | ±0.2 – 0.6 mm |
| 20 mm | 20 | 2000–3000 | Custom |
| 25 mm | 25 | 2000–3000 | Custom |
| 30 mm & above | 30+ | Mill / Cut to length | Custom per order |
Typical Applications
- Aerospace components — turbine shafts, fasteners, engine parts
- Power generation — steam turbines, nuclear plant internals, high‑temp components
- Oil & Gas — subsea valves, drilling equipment, high‑pressure components
- Marine engineering — shafts, seawater pumps, marine fasteners (ideal for coastal Tamil Nadu, Andaman regions)
- Chemical & petrochemical plants — corrosive media handling, high‑pressure reactors
- Industrial machinery — high‑strength high‑temperature shafts, pins, and mechanical parts
The manufacturing process for Inconel 718 hexagon rods involves precision hot working or extrusion, followed by solution treatment and age-hardening where necessary. This ensures the rods meet stringent dimensional tolerances and maintain consistent mechanical properties. Rose Metal Industries provides rods in various sizes and lengths, with hexagonal cross-sections suitable for fasteners, shafts, bolts, and precision-machined components. Surface finishes are available in hot-rolled, bright, black, peeled, and centerless ground to suit diverse engineering requirements..
Inconel 718 Hexagon Rods manufactured by Rose Metal Industries are high-performance nickel-chromium superalloy rods designed for applications requiring exceptional strength, corrosion resistance, and thermal stability. As a trusted manufacturer, stockist, and exporter, Rose Metal Industries supplies these rods to industrial clients across Tamil Nadu, Andhra Pradesh, Karnataka, Telangana, Puducherry (Pondicherry), Andaman and Nicobar Islands, as well as international markets. These hexagon rods are widely used in aerospace, marine, oil & gas, power generation, and chemical processing industries.
Frequently Asked Questions (FAQ)
Q1: What makes Inconel 718 Hexagon Rods suitable for high‑temperature and corrosive environments?
A: The high nickel‑chromium‑niobium alloy composition gives alloy 718 excellent creep strength, oxidation resistance and corrosion resistance — ideal for marine, oil & gas, and power generation applications.
Q2: Do you supply test certificates and documentation?
A: Yes. Rose Metal Industries provides full MTC (EN 10204 3.1/3.2), chemical analysis, and can facilitate third‑party inspection or PMI on request.
Q3: Can you supply custom sizes and finishes?
A: Yes — we offer various hexagon sizes, custom lengths, and surface finishes (bright, black, centerless ground, peeled) per project requirements.
Q4: Are these rods available for customers in Tamil Nadu, Andhra Pradesh, Karnataka, Telangana, Puducherry, and Andaman Islands?
A: Absolutely — we supply across these regions and also handle export packing and shipping for global clients.
Q5: What industries commonly use Inconel 718 Hexagon Rods?
A: Aerospace, power generation, oil & gas, marine, chemical processing, industrial machinery and high‑temperature equipment — anywhere strength, corrosion resistance, and high‑temperature performance are required.