Manufacturer, Supplier & Exporter of Inconel 718 Round Bar
Inconel 718 Round Bar is a nickel-chromium-based superalloy (UNS N07718 / Alloy 718) renowned for its high strength, exceptional corrosion resistance, and outstanding performance at elevated temperatures. Manufactured and supplied by Riddhi Siddhi Impex, it is widely used in aerospace, power generation, chemical, and marine industries. As a round bar, it is ideal for components requiring precision, high mechanical strength, and long-term durability...
The chemical composition of Inconel 718 is engineered for high-temperature strength and corrosion resistance. It typically contains 50–55% nickel, 17–21% chromium, 4.75–5.5% niobium, 2.8–3.3% molybdenum, 0.2–0.8% titanium, 0.65–1.15% aluminum, and minor amounts of iron, cobalt, carbon, manganese, and silicon. This combination provides precipitation-hardening characteristics, which result in superior yield and tensile strengths across a wide temperature range.
Inconel 718 round bars exhibit excellent mechanical properties, including tensile strength of 1240–1380 MPa, yield strength (0.2% offset) of 1030–1240 MPa, and elongation of 12–22%, depending on size, heat treatment, and condition. The alloy maintains these properties under temperatures up to 700°C, making it suitable for high-stress components such as turbine shafts, fasteners, and aerospace hardware.
The alloy shows remarkable resistance to oxidation, scaling, and creep at elevated temperatures. Its density is approximately 8.19 g/cm³, and the melting range lies between 1260–1336°C. Inconel 718 retains strength and toughness even under prolonged exposure to extreme temperatures, making it a preferred choice for gas turbines, jet engines, and power plant components where both heat and corrosion resistance are critical...
Commercially, Inconel 718 round bars are available in diameters ranging from 6 mm to 500 mm, with standard lengths from 250 mm up to 3000 mm. Suppliers like Riddhi Siddhi Impex offer hot-rolled, cold-drawn, turned, centerless ground, and precision-machined finishes. The bars can also be supplied in cut-to-length, providing flexibility for various industrial applications requiring high precision and surface quality..
Inconel 718 Round Bar – Specification
| Specification | Details |
|---|---|
| Grade | Inconel 718 |
| UNS | N07718 |
| Standard | ASTM B637 / ASME SB637 |
| Diameter | 6mm to 500mm |
| Length | 100mm to 6000mm |
| Finish | Black, Bright, Polished, Peeled, Turned, Ground |
| Form | Round Bar, Rod, Square, Hex |
| Condition | Hot Rolled, Cold Drawn, Annealed, Solution Annealed |
Chemical Composition of Inconel 718 Round Bar
| Element | Content (%) |
|---|---|
| Nickel (Ni) | 50 – 55 |
| Chromium (Cr) | 17 – 21 |
| Iron (Fe) | Balance |
| Niobium (Nb) | 4.75 – 5.5 |
| Molybdenum (Mo) | 2.8 – 3.3 |
| Titanium (Ti) | 0.65 – 1.15 |
| Aluminium (Al) | 0.2 – 0.8 |
| Manganese (Mn) | ≤ 0.35 |
| Silicon (Si) | ≤ 0.35 |
| Carbon (C) | ≤ 0.08 |
Mechanical Properties of Inconel 718 Round Bar
| Property | Value |
|---|---|
| Tensile Strength | 1240 – 1380 MPa |
| Yield Strength | 1030 – 1240 MPa |
| Elongation | 12 – 22% |
| Hardness | ≤ 36 HRC |
| Density | 8.19 g/cm³ |
| Melting Point | 1260 – 1336°C |
Dimension Chart of Inconel 718 Round Bar
| Diameter (mm) | Diameter (Inches) | Standard Length |
|---|---|---|
| 6 – 25 mm | 1/4” – 1” | 1000 – 6000 mm |
| 26 – 50 mm | 1” – 2” | 1000 – 6000 mm |
| 51 – 150 mm | 2” – 6” | 2000 – 6000 mm |
| 151 – 500 mm | 6” – 20” | 2000 – 6000 mm |
Equivalent Grades of Inconel 718 Round Bar
| Standard | Equivalent Grade |
|---|---|
| UNS | N07718 |
| Werkstoff Nr. | 2.4668 |
| EN | Alloy 718 |
| BS | NA51 |
Equivalent Standards
| Standard | Description |
|---|---|
| ASTM B637 | Nickel Alloy Bars & Shapes |
| ASME SB637 | Nickel Alloy Rods & Bars |
| AMS 5662/5663 | Aerospace Grade Alloy 718 |
| AMS 5596 | High-Temperature Alloy |
Other Types of Inconel 718 Round Bars
| Type | Description |
|---|---|
| Hot Rolled Round Bar | Used for heavy engineering applications |
| Cold Drawn Round Bar | High precision and smooth surface |
| Polished Round Bar | Used in decorative & high-precision components |
| Forged Round Bar | High strength for critical applications |
| Hex / Square Bar | Special shapes available on request |
Inconel 718 round bars are widely used in high-temperature and high-strength applications. Key industries include aerospace (turbine blades, engine shafts), power generation (steam turbines, nuclear reactors), oil and gas (valves, pump shafts), chemical processing (reactors, heat exchangers), and marine engineering (fasteners, structural components). Its resistance to pitting, stress-corrosion cracking, and oxidation makes it suitable for both sea and chemical environments..
Frequently Asked Questions (FAQs)
- Q1: What are the main applications of Inconel 718 Round Bar?
- A1: Used in aerospace turbines, jet engines, nuclear reactors, oil & gas equipment, chemical plants and marine components.
- Q2: Do you provide custom cut lengths?
- A2: Yes, Riddhi Siddhi Impex supplies custom sizes as per client requirements.
- Q3: Is Inconel 718 suitable for high-temperature applications?
- A3: Absolutely. It performs exceptionally well up to 700°C with high strength and oxidation resistance.
- Q4: Do you supply Inconel 718 Round Bar across India?
- A4: Yes, supplied in Mumbai, Delhi, Bengaluru, Hyderabad, Chennai, Kolkata, Pune, Surat, Ahmedabad, Vadodara, Rajkot, Indore, Jaipur and all major domestic industrial cities.
Cities we have supplied our products to
Mumbai, Inconel 718 Round Bar Suplier in Delhi, Inconel 718 Round Bar Suplier in Bengaluru(Bangalore), Inconel 718 Round Bar Suplier in Hyderabad, Inconel 718 Round Bar Suplier in Chennai, Inconel 718 Round Bar Suplier in Kolkata, Inconel 718 Round Bar Suplier in Pune, Inconel 718 Round Bar Suplier in Ahmedabad, Inconel 718 Round Bar Suplier in Surat, Inconel 718 Round Bar Suplier in Vadodara, Inconel 718 Round Bar Suplier in Rajkot, Inconel 718 Round Bar Suplier in Nagpur, Inconel 718 Round Bar Suplier in Indore, Inconel 718 Round Bar Suplier in Bhopal, Inconel 718 Round Bar Suplier in Jaipur, Inconel 718 Round Bar Suplier in Kanpur, Inconel 718 Round Bar Suplier in Lucknow, Inconel 718 Round Bar Suplier in Agra, Inconel 718 Round Bar Suplier in Varanasi, Inconel 718 Round Bar Suplier in Amritsar, Inconel 718 Round Bar Suplier in Chandigarh, Inconel 718 Round Bar Suplier in Mysuru (Mysore), Inconel 718 Round Bar Suplier in Udaipur, Inconel 718 Round Bar Suplier in Jodhpur, Inconel 718 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Countries we have supplied our products to
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