Alloy 718 Round Bars Manufacturer, Stockist and Exporter
Alloy 718 Round Bars, also known as Inconel 718, are premium nickel-chromium alloy bars engineered to deliver exceptional strength and corrosion resistance in extreme environments. These bars are widely used in aerospace, power generation, and oil & gas industries due to their ability to maintain mechanical integrity at elevated temperatures. They meet stringent industrial standards, ensuring reliability and durability in critical applications. Alloy 718 is particularly suitable for components exposed to thermal fatigue and harsh chemicals, making it a versatile choice for demanding engineering requirements.
Manufactured with precise control over chemical composition, Alloy 718 Round Bars offer superior corrosion resistance against oxidizing and reducing agents. This nickel-iron-chromium alloy contains additions of niobium and molybdenum, which enhance its creep and rupture strength. The alloy's stability at temperatures up to 1300°F (704°C) makes it ideal for high-temperature applications such as gas turbines, jet engines, and nuclear reactors. Its balanced combination of toughness and durability allows for long-term service in aggressive operational environments.
One of the key advantages of Alloy 718 Round Bars is their outstanding mechanical properties. These bars provide high tensile strength, yield strength, and fatigue resistance. The alloy exhibits excellent toughness, even at sub-zero temperatures, which expands its usability in cryogenic as well as high-temperature applications. Alloy 718 is also highly resistant to stress corrosion cracking, ensuring long-term performance in both marine and chemical processing environments. Its combination of hardness and ductility makes it easy to machine, fabricate, and weld for complex engineering components.
Worldwide Alloy 718 Round Bars Manufacturer, Stockist and Exporter
Alloy 718 Round Bars are available in various diameters and lengths, providing flexibility for diverse industrial and engineering applications. They are commonly used to manufacture shafts, fasteners, turbine discs, valves, and aerospace components where high performance is critical. The alloy’s excellent weldability and formability make it suitable for intricate designs and demanding production requirements. Heat treatment further enhances the mechanical properties, ensuring optimal strength and resistance for long-lasting service in severe operating conditions.
The thermal stability of Alloy 718 Round Bars is another reason for their widespread adoption. They retain high strength and structural integrity at elevated temperatures, minimizing thermal deformation and creep. This property makes them ideal for applications in power plants, gas turbines, and high-performance aerospace engines. The alloy’s resistance to oxidation and carburization ensures minimal material degradation during prolonged exposure to heat and industrial chemicals. Additionally, Alloy 718’s consistent performance in extreme conditions reduces maintenance costs and enhances overall system reliability.
In addition to strength and thermal stability, Alloy 718 Round Bars offer excellent corrosion resistance in harsh chemical environments. They are highly resistant to pitting, crevice corrosion, and general corrosion in oxidizing and reducing media. This makes them a preferred material for components used in marine environments, chemical processing plants, and oil and gas facilities. The alloy’s high resistance to stress corrosion cracking also ensures long-term safety and reliability of critical components under continuous operational stress, providing confidence in demanding applications.
Overall, Alloy 718 Round Bars combine high strength, corrosion resistance, thermal stability, and excellent mechanical properties in a single material. Their versatility and reliability make them an ideal choice for aerospace, oil and gas, nuclear, and power generation industries. With precise manufacturing, consistent quality, and adaptability to diverse industrial applications, these bars meet the stringent demands of engineers and designers. Choosing Alloy 718 Round Bars ensures long-lasting performance and efficiency in some of the most challenging operating conditions worldwide.
Alloy 718 Round Bars Specifications
| Property | Specification / Standard | Description |
|---|---|---|
| Alloy Name | Alloy 718 / Inconel 718 | High-strength nickel-chromium alloy with excellent corrosion resistance and thermal stability. |
| Form | Round Bars | Cylindrical bars available in various diameters and lengths for industrial applications. |
| Standard | ASTM B637, AMS 5662 | Manufactured to meet international standards for chemical composition and mechanical properties. |
| Diameter Range | 5 mm to 500 mm | Available in small to large diameters to suit diverse engineering requirements. |
| Length | 1 m to 6 m (custom lengths available) | Bars can be cut to standard or custom lengths as per customer requirements. |
| Applications | Aerospace, Oil & Gas, Power Generation, Marine | Used in high-temperature and corrosive environments for critical components like turbines, shafts, and fasteners. |
| Heat Treatment | Solution Annealed + Precipitation Hardened | Ensures optimal mechanical properties including high strength, hardness, and fatigue resistance. |
Chemical Composition
| Element | Composition (wt%) |
|---|---|
| Nickel (Ni) | 50 – 55% |
| Chromium (Cr) | 17 – 21% |
| Iron (Fe) | Balance |
| Niobium + Tantalum (Nb + Ta) | 4.75 – 5.5% |
| Molybdenum (Mo) | 2.8 – 3.3% |
| Cobalt (Co) | ≤ 1% |
| Manganese (Mn) | ≤ 0.35% |
| Silicon (Si) | ≤ 0.35% |
| Carbon (C) | ≤ 0.08% |
| Phosphorus (P) | ≤ 0.015% |
| Sulfur (S) | ≤ 0.015% |
| Aluminum (Al) | 0.2 – 0.8% |
| Titanium (Ti) | 0.65 – 1.15% |
Mechanical Properties
| Property | Value | Unit |
|---|---|---|
| Density | 8.19 | g/cm³ |
| Tensile Strength (UTS) | 1240 – 1380 | MPa |
| Yield Strength (0.2% offset) | 1030 – 1100 | MPa |
| Elongation | 12 – 20 | % |
| Hardness (Rockwell B) | 90 – 100 | HRB |
| Hardness (Rockwell C) | 35 – 42 | HRC |
| Modulus of Elasticity | 205 | GPa |
| Poisson's Ratio | 0.29 | – |
| Shear Strength | 720 – 750 | MPa |
| Melting Point | 1260 – 1336 | °C |
Dimensions
| Diameter (mm) | Length (mm) | Tolerance (mm) |
|---|---|---|
| 5 – 10 | 1000 – 3000 | ±0.1 |
| 12 – 25 | 1000 – 4000 | ±0.15 |
| 28 – 50 | 2000 – 6000 | ±0.2 |
| 55 – 100 | 2000 – 6000 | ±0.25 |
| 110 – 200 | 3000 – 6000 | ±0.3 |
| 210 – 500 | 3000 – 6000 | ±0.5 |
Equivalent Grades
| Standard | Equivalent Grade / Alloy |
|---|---|
| ASTM | B637, B670 |
| AMS | 5662, 5663, 5596 |
| DIN / EN | 2.4668 |
| UNS | N07718 |
| JIS | SN718 |
| BS | NA |
| ISO | Alloy 718 |
Weight Chart (Approx.)
| Diameter (mm) | Weight per Meter (kg/m) |
|---|---|
| 5 | 0.16 |
| 10 | 0.63 |
| 15 | 1.42 |
| 20 | 2.53 |
| 25 | 3.93 |
| 30 | 5.66 |
| 40 | 10.05 |
| 50 | 15.71 |
| 60 | 22.62 |
| 80 | 40.21 |
| 100 | 62.83 |
| 120 | 90.50 |
| 150 | 138.00 |
| 200 | 251.20 |
| 250 | 393.00 |
| 300 | 565.50 |
The applications of our Alloy 718 round bars include oil & gas projects, chemical processing plants, desalination systems, shipbuilding, aerospace, automotive, and heavy engineering. With superior resistance to oxidation and stress corrosion cracking, our bars perform reliably in extreme environments. Whether it is for large-scale infrastructure projects in Mumbai or precision engineering in Germany and the USA, Shakti Forge India remains the first choice for industries that demand excellence.
As one of the most reliable Alloy 718 Round Bars Manufacturer, Stockist and Exporter, Shakti Forge India continues to expand its presence in domestic and international markets. Our focus on quality, timely delivery, and customer satisfaction makes us a preferred partner for leading industries across the globe. For bulk requirements or customized solutions, Shakti Forge India ensures the highest level of product integrity and service excellence.
Frequently Asked Questions (FAQs)
Q:What is Alloy 718?
- Alloy 718, also known as Inconel 718, is a nickel-chromium superalloy known for high strength, corrosion resistance, and thermal stability, widely used in aerospace, power generation, and oil & gas industries.
Q:What are the applications of Alloy 718 Round Bars?
- These round bars are used in high-temperature and corrosive environments for components such as turbine shafts, fasteners, valves, aerospace parts, and marine equipment.
Q:What is the chemical composition of Alloy 718?
- Alloy 718 contains 50–55% Nickel, 17–21% Chromium, 4.75–5.5% Niobium + Tantalum, 2.8–3.3% Molybdenum, small amounts of Cobalt, Manganese, Silicon, Carbon, Phosphorus, Sulfur, Aluminum, and Titanium, with iron as the balance.
Q:What mechanical properties does Alloy 718 exhibit?
- Alloy 718 Round Bars have a tensile strength of 1240–1380 MPa, yield strength of 1030–1100 MPa, elongation 12–20%, hardness 35–42 HRC, and excellent creep and fatigue resistance at elevated temperatures.
Q:Can Alloy 718 Round Bars be welded?
- Yes, Alloy 718 has excellent weldability using standard nickel alloy welding processes, but post-weld heat treatment is recommended to maintain mechanical properties and reduce residual stress.
Cities we have supplied our products to
Mumbai, Delhi, Bengaluru(Bangalore), Hyderabad, Chennai, Kolkata, Pune, Ahmedabad, Surat, Vadodara, Rajkot, Nagpur, Indore, Bhopal, Jaipur, Kanpur, Lucknow, Agra, Varanasi, Amritsar, Chandigarh, Mysuru (Mysore), Udaipur, Jodhpur, Visakhapatnam, Coimbatore, Madurai, Kochi, Thiruvananthapuram, Mangalore, Nashik, Kolhapur, Chandrapur, Akola, Vilayat, Somnath, Dahej, Narmada, Ankleshwar, Navsari, Valsad, Rajpipla, Veraval,Kovvur, Andra Pradesh,Karwar, Karnataka,Kosamba, Gujarat, Vishakapatnam, Shahad, Pondicherry, Kakkinada, Pradesh, Nagda, Madhya Pradesh,Harihar, Karnataka, Tuticorin, Tamilnadu, Trivandrum, KeralaKurnool, Rourkela, Hindupur, Orissa, Renukoot, Uttar Morbi, Kerala ,Himachal, Dehradun, Visakhapatnam ,Jamnagar, Kozhikode, Ludhiana,Latur, Nanded, Vijaywada, Alwar, Bareilly, Bikaner, Andheri, Marol, Taloja, Turbhe, TTC (Thane-Belapur), Pimpri-Chinchwad, Chakan, Talegaon, Ranjangaon, Jejuri, Baramati, Satpur, Ambad, Sinnar, Igatpuri, Shendra, Waluj, Chikalthana, Paithan, Hingna, Butibori, Kalmeshwar, Umred, Shiroli, Kagal, Gokul Shirgaon, Akkalkot, Chincholi, Lote-Parshuram, Dombivli, Ambernath, Mahad, Roha, Palghar, Tarapur (Boisar)
Cities we have supplied our products to
South Korea, Africa, Sri Lanka, Syria, Taiwan, Tanzania, Tajikistan, Thailand, Turkey, Turkmenistan, Ukraine, United Kingdom, Arab Emirates (UAE), Uzbekistan, Vietnam, Yemen, France, Germany, Greece, Oman, Colombia, Portugal, Japan, Lithuania, Macau, Mongolia, Qatar, Ireland, Malaysia, Bangladesh, Russia, Iran, Jordan, Singapore, Bulgaria, Poland, Denmark, Nigeria, Gambia, Indonesia, Finland, Argentina, Chile, Spain, Peru, Kuwait, India, Saudi Arabia, Slovakia, Slovenia, Sweden, Switzerland, Bahrain, the Netherlands, United Kingdom, Mexico, Bulgaria, Spain, France, Germany, Colombia, Brazil, Saudi Arabia, Iraq, Iran, Sudan, Libya, Tanzania, Nigeria, New Zealand, Paris, Switzerland
Applications of Alloy 718 Round Bars
- Oil & Gas Industry – pipelines, offshore rigs, valves, and fittings
- Chemical Processing Plants – heat exchangers, reactors, and storage vessels
- Marine & Shipbuilding – propeller shafts, seawater systems, and pumps
- Aerospace – jet engines, turbine blades, and structural components
- Power Generation – nuclear plants, boilers, and steam generators
- Automotive – exhaust systems, sensors, and performance parts
- Pharmaceutical & Food Industry – equipment requiring hygiene and corrosion resistance
- Construction & Infrastructure – high-strength fasteners, joints, and supports