Alloy 718 Plus Round Bars Manufacturer, Stockist and Exporter

Alloy 718 Plus Round Bars are a high-performance nickel-chromium alloy, widely used in aerospace, power generation, and chemical industries. They are known for their excellent strength and corrosion resistance, even at elevated temperatures. The alloy is designed to overcome the limitations of standard Alloy 718, offering improved mechanical properties and better long-term stability. These round bars are produced using advanced metallurgical techniques to ensure uniform composition and microstructure. They are ideal for critical components such as turbine shafts, engine parts, and fasteners. Their enhanced creep and fatigue resistance make them suitable for high-stress applications. Alloy 718 Plus Round Bars are versatile and can be machined, welded, and heat-treated with relative ease.

The manufacturing of Alloy 718 Plus Round Bars involves precision forging and hot rolling, followed by controlled solution treatment. This ensures superior mechanical strength, dimensional stability, and resistance to thermal fatigue. The alloy’s composition includes nickel, chromium, molybdenum, niobium, and trace elements that enhance corrosion resistance and creep strength. Heat treatment can be tailored to achieve desired hardness and tensile properties. These bars exhibit excellent oxidation resistance at temperatures up to 700°C, making them suitable for high-temperature applications. Their durability under cyclic loading conditions ensures a longer service life for critical components. Alloy 718 Plus Round Bars are widely supplied in various diameters and lengths to meet diverse industrial requirements.

Corrosion resistance is a key feature of Alloy 718 Plus Round Bars. The combination of nickel and chromium forms a protective oxide layer, preventing surface degradation in aggressive environments. The alloy performs exceptionally well in oxidizing, reducing, and chloride-containing environments. It is also resistant to stress-corrosion cracking and pitting corrosion. This makes it highly suitable for chemical processing, marine, and petrochemical applications. The alloy maintains its mechanical properties even after prolonged exposure to harsh environments. With proper surface finishing, Alloy 718 Plus Round Bars can achieve superior aesthetic and functional performance.

Worldwide Alloy 718 Plus Round Bars Manufacturer, Stockist and Exporter

Alloy 718 Plus Round Bars exhibit outstanding mechanical properties, including high tensile strength, yield strength, and toughness. They retain these properties across a wide temperature range, including cryogenic and elevated temperatures. The alloy is capable of sustaining heavy loads without deformation, making it suitable for structural applications. Fatigue resistance is significantly improved over standard Alloy 718, ensuring reliability in rotating machinery. The combination of strength and ductility allows for complex machining and forming operations. The bars can also be solution-annealed and age-hardened to achieve optimized performance. This makes Alloy 718 Plus a preferred material for demanding engineering applications.

The dimensional accuracy of Alloy 718 Plus Round Bars is critical for precision engineering applications. They are available in both standard and customized diameters and lengths. Tight tolerances are maintained during rolling and finishing processes to ensure uniformity and repeatability. These bars are suitable for machining into shafts, bolts, fasteners, and other precision components. Surface finish and straightness are carefully controlled to minimize post-processing requirements. The alloy can also be supplied in both hot-rolled and cold-rolled conditions depending on the application. Their stability under thermal and mechanical stress ensures consistent performance throughout their service life.

Alloy Alloy Round Bars

Alloy 718 Plus Round Bars are fully compatible with standard joining and fabrication techniques. They can be welded using conventional methods without compromising mechanical integrity. Post-weld heat treatment restores optimum strength and toughness, ensuring long-term performance. The bars are also suitable for machining, grinding, and polishing, allowing for precise component manufacturing. Corrosion-resistant coatings and surface treatments can further enhance their performance in extreme environments. These bars are extensively used in aerospace engine components, high-temperature valves, and structural assemblies. Their combination of strength, corrosion resistance, and fatigue performance makes them highly reliable in critical applications.

In summary, Alloy 718 Plus Round Bars are a superior material choice for high-performance industrial applications. They combine excellent mechanical properties with outstanding corrosion and oxidation resistance. The alloy’s versatility allows it to be used across aerospace, power generation, chemical, and marine industries. Its enhanced fatigue, creep, and stress-corrosion resistance extend the service life of critical components. With precision manufacturing, strict quality control, and the ability to customize dimensions, Alloy 718 Plus Round Bars meet the most demanding engineering standards. These bars provide a reliable solution where standard alloys may fail, ensuring safety, efficiency, and longevity of industrial equipment.

Alloy 718 Plus Round Bars Specifications

Property Specification / Range
Alloy Type Nickel-Chromium Alloy
Standards ASTM B637, AMS 5663, ASTM B637, ASTM B637 / ASME SB637
Form Round Bars
Diameter Range 10 mm to 300 mm (custom sizes available)
Length 1000 mm to 6000 mm (custom lengths available)
Condition Hot Rolled, Solution Annealed, Age Hardened
Density 8.19 g/cm³
Melting Point 1290°C – 1350°C
Applications Aerospace components, gas turbines, chemical & petrochemical industry, marine engineering, nuclear reactors
Surface Finish Hot Rolled / Turned / Polished

Chemical Composition

Element Composition (%)
Nickel (Ni) 50 – 55
Chromium (Cr) 17 – 21
Cobalt (Co) ≤ 1
Molybdenum (Mo) 2.8 – 3.3
Niobium + Tantalum (Nb + Ta) 4.75 – 5.5
Copper (Cu) ≤ 0.3
Manganese (Mn) ≤ 0.35
Silicon (Si) ≤ 0.35
Iron (Fe) Balance
Carbon (C) ≤ 0.08
Phosphorus (P) ≤ 0.015
Sulfur (S) ≤ 0.015

Mechanical Properties

Property Typical Value Test Standard
Tensile Strength (UTS) 1250 – 1400 MPa ASTM E8 / AMS 5662
Yield Strength (0.2% offset) 1030 – 1100 MPa ASTM E8 / AMS 5662
Elongation (% in 50 mm) 12 – 18 ASTM E8
Reduction of Area (%) 40 – 55 ASTM E8
Hardness (HRB) 95 – 105 ASTM E18
Hardness (HRC) 35 – 38 (age hardened) ASTM E18
Impact Toughness (Charpy V-Notch) ≥ 20 J at room temperature ASTM E23
Modulus of Elasticity 205 GPa ASTM E111
Shear Strength 690 – 750 MPa ASTM E8
Creep Rupture Strength (593°C, 10000h) 620 MPa ASTM E139

Dimensions

Diameter (mm) Length (mm) Tolerance (± mm) Weight per Meter (kg/m)
10 – 20 1000 – 6000 ±0.2 0.64 – 2.03
20 – 50 1000 – 6000 ±0.3 2.03 – 15.4
50 – 100 1000 – 6000 ±0.5 15.4 – 61.9
100 – 150 1000 – 6000 ±0.8 61.9 – 139
150 – 200 1000 – 6000 ±1.0 139 – 246
200 – 300 1000 – 6000 ±1.5 246 – 553

Equivalent Grades

Standard / Country Equivalent Grade
ASTM / ASME (USA) Alloy 718, UNS N07718, AMS 5663 / AMS 5662
DIN / Germany NiCr19Fe19NbMo, W. Nr. 2.4668
EN / Europe Alloy 718 (similar composition, NiCr19Fe19NbMo)
JIS / Japan SN 718 / SUH 718
GB / China GH4169
BS / UK 718 Alloy (Nickel-based Superalloy)
ISO NiCr19Fe19NbMo Alloy

Weight Chart (Approx.)

Diameter (mm) Weight per Meter (kg/m)
10 0.64
12 0.91
16 1.62
20 2.55
25 3.98
32 6.45
40 10.2
50 15.9
60 22.8
80 40.5
100 63.6
120 91.0
150 142.0
200 254.0
250 397.0
300 572.0

The applications of our Alloy 718 Plus 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 Plus 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 Plus?

Alloy 718 Plus is a nickel-chromium superalloy designed for high strength, corrosion resistance, and excellent performance at elevated temperatures. It is an improved version of Alloy 718 with enhanced mechanical properties and better creep resistance.

Q:What are the typical applications of Alloy 718 Plus Round Bars?

They are widely used in aerospace components, gas turbines, power generation equipment, chemical and petrochemical industries, marine engineering, and nuclear reactors.

Q:What are the available forms and sizes?

Alloy 718 Plus is primarily available as round bars in diameters ranging from 10 mm to 300 mm and lengths from 1000 mm to 6000 mm. Custom sizes can also be manufactured.

Q:Can Alloy 718 Plus Round Bars be welded?

Yes, they can be welded using standard techniques. Post-weld heat treatment is recommended to restore mechanical properties and ensure long-term performance.

Q:What is the chemical composition of Alloy 718 Plus?

It mainly consists of Nickel (50–55%), Chromium (17–21%), Niobium + Tantalum (4.75–5.5%), Molybdenum (2.8–3.3%), with minor elements such as Iron, Cobalt, Copper, Manganese, Silicon, Carbon, Phosphorus, and Sulfur.

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 Plus 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