Alloy 800H Round Bars Manufacturer, Stockist and Exporter
Alloy 800H Round Bars are high-performance nickel-iron-chromium alloys designed for applications requiring excellent strength and corrosion resistance at elevated temperatures. These round bars are widely used in chemical processing, power generation, and petrochemical industries due to their ability to withstand oxidation and carburization. With superior tensile and creep strength, Alloy 800H maintains stability in environments up to 1100°F (593°C). The alloy exhibits good resistance to nitric acid, sulfuric acid, and other oxidizing agents. Fabricators and manufacturers prefer Alloy 800H for components like furnace parts, heat exchangers, and pressure vessels. The material can be easily machined, welded, and formed without losing its mechanical properties. Its versatility makes it a reliable choice for critical high-temperature applications.
The chemical composition of Alloy 800H Round Bars is carefully controlled to optimize its high-temperature performance. Typically, the alloy contains 30–35% nickel, 19–23% chromium, and 39.5–49.5% iron, along with minor additions of carbon, manganese, silicon, and other trace elements. Carbon content is higher than standard Alloy 800, which enhances its creep and tensile strength at elevated temperatures. The chromium and nickel combination ensures excellent oxidation and corrosion resistance. Alloy 800H is less prone to grain growth at high temperatures, making it ideal for prolonged service in furnaces and boilers. The precise balance of alloying elements ensures a stable microstructure, improving mechanical performance. This composition also contributes to its resistance against scaling and surface degradation in harsh environments.
Alloy 800H Round Bars are manufactured to strict standards to ensure uniformity and reliability. They are available in various diameters and lengths to suit different industrial requirements. The bars undergo hot rolling and controlled heat treatment processes to achieve desired mechanical properties. Solution annealing is commonly applied to relieve stresses and enhance strength. The surface finish is smooth, allowing for easy inspection and fabrication. Non-destructive testing methods are often employed to verify integrity before delivery. Heat treatment ensures that the bars maintain dimensional stability and resist deformation under stress. Manufacturers also provide certifications to verify chemical and mechanical compliance.
Worldwide Alloy 800H Round Bars Manufacturer, Stockist and Exporter
In terms of mechanical properties, Alloy 800H Round Bars offer high tensile and yield strengths, along with excellent creep resistance. Typical tensile strength ranges between 585–690 MPa, with yield strength around 275–345 MPa. Elongation in 50 mm is approximately 30%, reflecting good ductility for forming operations. The bars maintain strength at elevated temperatures, making them suitable for continuous service in high-heat environments. Hardness values are moderate, allowing for machining without excessive tool wear. The alloy’s high creep-rupture strength ensures longevity in critical applications like superheaters and furnace components. Its mechanical stability reduces maintenance needs and increases operational efficiency.
Alloy 800H Round Bars are widely used in industries where both heat and corrosion resistance are critical. Applications include gas turbines, heat exchangers, furnace components, reactor parts, and petrochemical equipment. Their ability to withstand thermal cycling without cracking makes them ideal for power plants and refinery operations. The alloy also finds use in marine environments due to its resistance to seawater corrosion. Fabricators appreciate the bars for their weldability, which allows custom structures and assemblies to be built. The material’s high-temperature properties make it a preferred choice in aerospace and chemical processing industries.
These round bars are available in standard sizes, but custom dimensions can also be provided to meet specific engineering requirements. Diameters typically range from 6 mm to 300 mm, with lengths up to 6 meters or more. Surface finishes can be supplied as hot-rolled, cold-rolled, or polished, depending on the application. The bars can be further machined or forged into complex shapes as needed. Weight charts and dimensional tables are often provided to help engineers calculate material requirements accurately. Quality checks ensure consistent diameter, straightness, and surface integrity. These properties make Alloy 800H Round Bars a versatile choice for precision engineering applications.
Alloy 800H Round Bars are supported by a range of international equivalents, including UNS N08811, EN 1.4876, and JIS SN778. The alloy’s combination of strength, corrosion resistance, and heat tolerance ensures reliable performance across global industries. Suppliers often provide detailed technical documentation, including chemical analysis, mechanical property reports, and certifications. Handling and storage are straightforward, but care should be taken to prevent contamination and surface damage. Proper installation and welding techniques further ensure optimal performance. Overall, Alloy 800H Round Bars are a dependable solution for engineers seeking high-quality, heat-resistant, and corrosion-resistant materials.
Alloy 800H Round Bars Specifications
| Property | Specification / Range |
|---|---|
| Standard | ASTM B473 / B619 / ASME SB473 |
| Material Type | Nickel-Iron-Chromium Alloy |
| Nickel (Ni) | 30 – 35% |
| Chromium (Cr) | 19 – 23% |
| Iron (Fe) | Balance (39.5 – 49.5%) |
| Carbon (C) | 0.05 – 0.10% |
| Manganese (Mn) | ≤ 1.00% |
| Silicon (Si) | ≤ 1.00% |
| Tensile Strength | 585 – 690 MPa |
| Yield Strength (0.2% offset) | 275 – 345 MPa |
| Elongation (50 mm) | ≈ 30% |
| Hardness (Brinell) | ≤ 217 HB |
| Maximum Service Temperature | 1100°F (593°C) |
| Forms Available | Round Bars, Rods, Forged Bars |
| Diameter Range | 6 mm – 300 mm |
| Length Range | Up to 6 meters (custom lengths available) |
Chemical Composition
| Element | Percentage (%) |
|---|---|
| Nickel (Ni) | 30 – 35 |
| Chromium (Cr) | 19 – 23 |
| Iron (Fe) | Balance (39.5 – 49.5) |
| Carbon (C) | 0.05 – 0.10 |
| Manganese (Mn) | ≤ 1.00 |
| Silicon (Si) | ≤ 1.00 |
| Copper (Cu) | ≤ 0.50 |
| Sulfur (S) | ≤ 0.015 |
| Phosphorus (P) | ≤ 0.015 |
Mechanical Properties
| Property | Value / Range |
|---|---|
| Tensile Strength | 585 – 690 MPa |
| Yield Strength (0.2% offset) | 275 – 345 MPa |
| Elongation (50 mm) | ≈ 30% |
| Hardness (Brinell) | ≤ 217 HB |
| Creep Rupture Strength (20,000 hrs at 700°C) | 90 MPa approx. |
| Modulus of Elasticity | ≈ 200 GPa |
| Thermal Conductivity | ≈ 11.2 W/m·K |
| Coefficient of Thermal Expansion (20–1000°C) | ≈ 13.1 × 10⁻⁶ /°C |
Dimensions
| Diameter (mm) | Length (mm) | Weight per Meter (kg/m) |
|---|---|---|
| 6 – 12 | 1000 – 3000 | 0.22 – 0.79 |
| 13 – 20 | 1000 – 3000 | 0.85 – 2.47 |
| 21 – 30 | 1000 – 6000 | 2.74 – 5.55 |
| 31 – 50 | 1000 – 6000 | 6.00 – 19.25 |
| 51 – 80 | 1000 – 6000 | 20.11 – 50.27 |
| 81 – 100 | 1000 – 6000 | 51.78 – 79.24 |
| 101 – 150 | 1000 – 6000 | 80.87 – 179.00 |
| 151 – 200 | 1000 – 6000 | 181.00 – 314.00 |
Equivalent Grades
| Country / Standard | Grade / Equivalent |
|---|---|
| USA (ASTM / ASME) | Alloy 800H / UNS N08811 |
| Europe (EN) | 1.4876 |
| Japan (JIS) | SN778 |
| Germany (DIN) | NiCr20Fe30Mn |
| UK | Alloy 800H |
| India (IS) | IS 6602 / Alloy 800H |
Weight Chart (Approx.)
| Diameter (mm) | Weight per Meter (kg/m) |
|---|---|
| 6 | 0.22 |
| 8 | 0.39 |
| 10 | 0.61 |
| 12 | 0.88 |
| 16 | 1.58 |
| 20 | 2.47 |
| 25 | 3.85 |
| 30 | 5.55 |
| 40 | 9.60 |
| 50 | 15.42 |
| 60 | 22.12 |
| 80 | 39.20 |
| 100 | 61.30 |
| 120 | 88.00 |
| 150 | 137.50 |
| 200 | 246.00 |
The applications of our Alloy 800H 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 800H 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 800H?
- Alloy 800H is a nickel-iron-chromium alloy designed for high-temperature applications. It offers excellent strength, oxidation resistance, and corrosion resistance in environments up to 1100°F (593°C).
Q:What are the typical applications of Alloy 800H Round Bars?
- Alloy 800H round bars are used in chemical processing, petrochemical plants, power generation, furnace components, heat exchangers, and gas turbines, where high temperature and corrosion resistance are critical.
Q:What is the chemical composition of Alloy 800H?
- Alloy 800H contains 30–35% nickel, 19–23% chromium, 39.5–49.5% iron, 0.05–0.10% carbon, and minor amounts of manganese, silicon, and copper.
Q:What mechanical properties does Alloy 800H have?
- It has tensile strength of 585–690 MPa, yield strength of 275–345 MPa, elongation around 30%, and hardness up to 217 HB. It also maintains excellent creep resistance at elevated temperatures.
Q:Can Alloy 800H Round Bars be welded?
- Yes, Alloy 800H has good weldability using conventional welding methods. Proper preheat and post-weld heat treatment are recommended for best results in high-temperature applications.
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 800H 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