Inconel 718 Square Rods
Inconel 718 Square Rods are premium nickel-chromium-based superalloy rods manufactured, stocked, and exported by Rose Metal Industries. Known for their outstanding strength, corrosion resistance, and ability to withstand extreme temperatures, these rods are ideal for critical industrial applications. Rose Metal Industries supplies these high-performance square rods to clients in Tamilnadu, Andhra Pradesh, Karnataka, Telangana, Puducherry (Pondicherry), and Andaman & Nicobar Islands, as well as global markets..
The rods are produced to meet international standards such as ASTM B637, AMS 5662 / 5663 / 5664, and relevant EN/ASME specifications. They are available in various cross-sectional sizes, lengths, and surface finishes, including bright, polished, and centerless ground, to accommodate precise engineering requirements. Each batch undergoes rigorous testing including dimensional checks, tensile strength, hardness, and PMI/chemical analysis to ensure compliance with global quality standards..
Chemical composition of Inconel 718 square rods typically includes 50–55% Nickel, 17–21% Chromium, 2.8–3.3% Molybdenum, 4.75–5.5% Niobium & Tantalum, with small amounts of Titanium, Aluminum, and Carbon. This precise alloying ensures excellent creep resistance, high-temperature strength, and corrosion resistance, making the rods suitable for applications in harsh environments such as chemical processing, marine, and aerospace sectors..
Mechanical properties include a minimum tensile strength of 1275 MPa, yield strength of 1035 MPa, elongation of 12% minimum, and hardness up to 363 HB. These properties make Inconel 718 square rods ideal for turbine shafts, engine components, subsea valves, high-pressure piping, and nuclear plant equipment, where reliability under extreme mechanical stress and temperature is critical.
Specifications & Standards
| Property | Typical / Standard |
|---|---|
| Grades | Inconel 718 (UNS N07718) |
| Standards | ASTM B637, AMS 5662 / 5663 / 5664, EN / ASME |
| Forms | Hot-rolled, cold-rolled, square rods |
| Surface Finish | Bright, polished, centerless ground |
| Testing | Dimensional, tensile, hardness, PMI, MTC |
Chemical Composition (typical)
| Element | Percentage (%) |
|---|---|
| Nickel (Ni) | 50–55 |
| Chromium (Cr) | 17–21 |
| Molybdenum (Mo) | 2.8–3.3 |
| Niobium + Tantalum (Nb+Ta) | 4.75–5.5 |
| Titanium (Ti) | 0.65–1.15 |
| Aluminum (Al) | 0.2–0.8 |
| Carbon (C) | 0.08 max |
Mechanical Properties
| Property | Value | Notes |
|---|---|---|
| Tensile Strength (UTS) | ≥1275 MPa | Depending on product form |
| Yield Strength | ≥1035 MPa | Cold worked higher |
| Elongation | ≥12% | Good ductility |
| Hardness | Up to 363 HB | Varies with condition |
Dimension Chart — Square Rods (Common Sizes)
| Size (mm) | Length (mm) | Tolerance |
|---|---|---|
| 6x6 – 25x25 | 1000–3000 | ±0.1–0.5 |
| 30x30 – 50x50 | 1000–3000 | ±0.2–0.6 |
| 55x55 – 100x100 | 2000–3000 | Custom |
| 110x110 – 200x200 | Mill / cut | Custom |
Equivalent Grades
| Common Name | UNS | EN / Werkstoff |
|---|---|---|
| Inconel 718 | N07718 | 2.4668 |
Applications
- Aerospace components (turbine shafts, engine parts)
- Gas turbines and power generation equipment
- Oil & gas offshore valves and piping
- Marine engineering and subsea components
- High-performance automotive parts
- Nuclear plant equipment and high-pressure applications
Rose Metal Industries also provides equivalent grades and designations for global compatibility. UNS N07718 is the primary standard, with alternative EN/Werkstoff and BS/AFNOR equivalents available to meet specific project requirements. This ensures that clients across Tamilnadu, Andhra Pradesh, Karnataka, Telangana, Puducherry, and Andaman & Nicobar Islands receive internationally recognized, high-quality material for their industrial projects..
Applications of Inconel 718 square rods are broad and include aerospace components, gas turbines, power generation equipment, oil & gas offshore valves, marine engineering, and high-performance automotive parts. The rods’ resistance to corrosion in marine and chemical environments, along with high-temperature mechanical stability, makes them a preferred choice for industries demanding both strength and durability..
Frequently Asked Questions (FAQ)
Q1: What is the difference between Inconel 718 and Inconel 625?
A: Inconel 718 provides higher strength at elevated temperatures due to precipitation hardening, while Inconel 625 offers superior corrosion resistance. Choose 718 for aerospace and high-stress applications; 625 for marine and chemical environments.
Q2: Do you provide mill test certificates (MTC)?
A: Yes — Rose Metal Industries issues MTCs and can facilitate third-party inspection, PMI, or chemical analysis for clients in Tamilnadu, Andhra Pradesh, Karnataka, Telangana, Puducherry, and Andaman & Nicobar Islands.
Q3: What standards do your square rods comply with?
A: We supply rods complying with ASTM B637, AMS 5662/5663/5664, and EN/ASME standards, depending on the product and destination requirements.
Q4: Can you supply custom sizes and surface finishes?
A: Yes — We offer custom cross-sections, lengths, and finishes including bright, polished, and centerless ground. Contact our sales team for lead times and MOQ details.
Q5: What are the main applications of Inconel 718 square rods?
A: Applications include aerospace, power generation, oil & gas, marine engineering, automotive, and nuclear equipment, where high strength, corrosion resistance, and high-temperature performance are required.