Alloy 46 Round Bars Manufacturer, Stockist and Exporter
Alloy 46 Round Bars are manufactured from a nickel-iron alloy known for its low coefficient of thermal expansion and high strength. This alloy is widely used in applications that require dimensional stability under fluctuating temperatures. With precise chemical composition and superior mechanical properties, Alloy 46 offers excellent machinability and weldability. It is particularly suited for the electronics, aerospace, and instrumentation industries where precision is critical. These bars are designed to maintain consistent performance across various environmental conditions. Their strength and resistance to oxidation make them reliable in challenging industrial applications.
One of the key benefits of Alloy 46 Round Bars is their exceptional magnetic and thermal stability. They are frequently used for sealing glass and ceramics due to their similar expansion characteristics. This makes them ideal in producing hermetic seals in vacuum tubes, transistors, and electronic components. Engineers prefer Alloy 46 for its consistent physical and metallurgical behavior. It also exhibits minimal deformation under stress, ensuring high accuracy in components and assemblies. The combination of strength, ductility, and dimensional control sets Alloy 46 apart from other alloys.
Alloy 46 Round Bars are available in a variety of sizes and finishes to suit different engineering applications. Manufacturers produce them in hot rolled, cold drawn, forged, and polished conditions. Each bar undergoes stringent quality testing to ensure it meets international standards such as ASTM F30 and UNS K94610. Their smooth surface finish and uniform diameter make them easy to machine and fabricate. Alloy 46 is also compatible with several heat treatment processes for optimizing hardness and strength. Due to its unique characteristics, Alloy 46 is a preferred material in precision assemblies and vacuum technology.
Worldwide Alloy 46 Round Bars Manufacturer, Stockist and Exporter
In addition to its thermal properties, Alloy 46 Round Bars are known for their good corrosion and oxidation resistance. This feature extends their service life, even in environments with fluctuating temperatures and exposure to chemicals. They perform efficiently in both cryogenic and high-temperature conditions. The material’s durability ensures consistent performance without frequent maintenance or replacement. Alloy 46 is an excellent choice where both reliability and stability are required. This makes it a valuable material for aerospace fasteners, connectors, and electronic sensors.
These bars are also highly customizable in terms of dimensions, surface finish, and tolerances. Suppliers offer Alloy 46 Round Bars in standard lengths or custom-cut sizes based on project requirements. They can be provided with centerless grinding, peeling, or precision machining as per client demand. Each batch is supplied with material test certificates confirming compliance with mechanical and chemical standards. This ensures complete traceability and assurance of quality in every shipment. The versatility of Alloy 46 makes it suitable for both mass production and prototype manufacturing.
When compared to other nickel alloys, Alloy 46 stands out for its balanced combination of performance and cost efficiency. It bridges the gap between standard iron-nickel alloys and high-performance materials like Invar and Kovar. Its ability to maintain precise dimensions under heat and stress makes it indispensable in critical applications. Industries such as defense, energy, and precision engineering continue to rely on Alloy 46 for demanding environments. The alloy’s predictable behavior simplifies design calculations and assembly procedures. This translates to enhanced operational reliability and reduced downtime.
Alloy 46 Round Bars are supplied worldwide by reputed manufacturers and stockists. They are exported to several countries for use in advanced engineering, instrumentation, and scientific equipment. Global standards such as ASTM, AMS, and ISO ensure uniform quality across suppliers. Each supplier provides certification and documentation to guarantee authenticity and compliance. The combination of global availability and proven performance makes Alloy 46 a trusted material choice. Its high strength, stability, and resistance properties ensure it remains relevant in modern manufacturing. As technology advances, Alloy 46 continues to play a crucial role in precision component production.
Alloy 46 Round Bars Specifications
| Specification | Details |
|---|---|
| Standard | ASTM F30, UNS K94610, DIN 1.3912, ISO 9453 |
| Product Description | Nickel-Iron Alloy 46 Round Bars with low thermal expansion, excellent stability, and high strength for aerospace and electronic applications. |
| Available Forms | Round Bars, Bright Bars, Forged Bars, Polished Bars, and Custom Cut Lengths |
| Manufacturing Process | Hot Rolled, Cold Drawn, Annealed, Turned, Ground, or Polished |
| Size Range | Diameter: 3 mm to 200 mm (Custom sizes available) |
| Length | 1000 mm to 6000 mm, or as per customer requirement |
| Tolerances | As per ASTM / EN standards or customer specification (±0.1 mm typical for ground finish) |
| Surface Finish | Black, Bright, Polished, Centerless Ground, or Machined Finish |
| Density | Approximately 8.1 g/cm³ |
| Melting Point | ~1425°C (2600°F) |
| Coefficient of Thermal Expansion | Low expansion alloy (similar to glass and ceramics, ~5.2 x10⁻⁶ /°C) |
| Modulus of Elasticity | ~145 GPa |
| Applications | Aerospace Components, Electronic Parts, Hermetic Seals, Instrumentation, and Vacuum Equipment |
| Testing | Ultrasonic Test, Hardness Test, Tensile Test, Flattening Test, Dimensional Inspection |
| Certification | EN 10204 3.1 / 3.2 Certificate, Material Test Reports (MTR), Heat Number Traceability |
| Packaging | Bundled with plastic/HDPE wrapping, wooden boxes or pallets with labeling for grade and size identification |
Chemical Composition
| Element | Percentage (%) | Description |
|---|---|---|
| Nickel (Ni) | ~45.0 - 48.0 | Nickel provides the alloy with excellent thermal stability and corrosion resistance. |
| Iron (Fe) | Balance | Acts as the base element ensuring structural integrity and strength of the alloy. |
| Manganese (Mn) | ≤ 0.80 | Improves hot working characteristics and overall toughness. |
| Silicon (Si) | ≤ 0.30 | Enhances oxidation resistance and promotes better deoxidation during melting. |
| Carbon (C) | ≤ 0.05 | Maintains machinability and prevents carbide formation that may affect ductility. |
| Phosphorus (P) | ≤ 0.025 | Kept at low levels to avoid brittleness and maintain weld integrity. |
| Sulfur (S) | ≤ 0.025 | Controlled in trace amounts to prevent cracking and maintain strength during processing. |
| Cobalt (Co) | ≤ 0.50 | May appear as a residual element; contributes slightly to strength and magnetic properties. |
| Copper (Cu) | ≤ 0.25 | Helps enhance corrosion resistance in some manufacturing grades. |
Mechanical Properties
| Property | Value (Typical) | Condition | Description |
|---|---|---|---|
| Tensile Strength (UTS) | 450 – 650 MPa | Annealed / Cold Drawn | Indicates the maximum stress the material can withstand before breaking under tension. |
| Yield Strength (0.2% Proof) | 250 – 400 MPa | Annealed | Defines the stress at which the material begins to deform plastically. |
| Elongation (in 50 mm) | 20 – 35% | Annealed | Represents ductility and the ability to stretch before fracture. |
| Hardness (Brinell) | 120 – 180 HB | Annealed / Cold Worked | Indicates material resistance to indentation or wear. |
| Modulus of Elasticity | ~145 GPa | Room Temperature | Measures stiffness and resistance to elastic deformation. |
| Poisson’s Ratio | 0.30 | — | Describes the ratio of lateral strain to axial strain. |
| Density | 8.10 g/cm³ | — | Defines mass per unit volume, useful for weight calculations and design analysis. |
| Melting Point | ~1425°C (2600°F) | — | Temperature at which the alloy transitions from solid to liquid. |
| Thermal Expansion Coefficient | ~5.2 x 10⁻⁶ /°C | 20°C to 200°C | Indicates minimal dimensional changes under temperature variations. |
| Electrical Resistivity | ~45 µΩ·cm | — | Shows the material’s resistance to electric current flow, relevant in electronic applications. |
Dimensions
| Nominal Diameter (mm) | Diameter (inch) | Weight (kg/m) | Weight (lb/ft) | Tolerance (mm) |
|---|---|---|---|---|
| 3 | 1/8" | 0.056 | 0.038 | ±0.05 |
| 6 | 1/4" | 0.224 | 0.150 | ±0.05 |
| 10 | 3/8" | 0.616 | 0.414 | ±0.10 |
| 12 | 1/2" | 0.887 | 0.596 | ±0.10 |
| 16 | 5/8" | 1.579 | 1.060 | ±0.15 |
| 20 | 3/4" | 2.466 | 1.656 | ±0.20 |
| 25 | 1" | 3.850 | 2.584 | ±0.25 |
| 30 | 1-1/4" | 5.540 | 3.717 | ±0.25 |
| 40 | 1-1/2" | 9.850 | 6.610 | ±0.30 |
| 50 | 2" | 15.410 | 10.350 | ±0.30 |
| 60 | 2-3/8" | 22.180 | 14.900 | ±0.40 |
| 80 | 3-1/8" | 39.460 | 26.530 | ±0.50 |
| 100 | 4" | 61.500 | 41.300 | ±0.75 |
| 150 | 6" | 138.500 | 93.000 | ±1.00 |
| 200 | 8" | 246.000 | 165.000 | ±1.50 |
Equivalent Grades
| Standard | Equivalent Grade | Description |
|---|---|---|
| UNS | K94600 | Nickel-Iron Alloy 46 used for controlled expansion applications. |
| Werkstoff Nr. | 1.3980 | European designation equivalent to Alloy 46 for precision components. |
| ASTM | F30 | Standard specification for Iron-Nickel alloys with controlled expansion characteristics. |
| ISO | Alloy 46 | Nickel-Iron alloy used in sealing to glass and ceramics in electronic applications. |
| DIN | NiFe46 | German designation for low expansion Nickel-Iron alloy with 46% Ni content. |
| AFNOR | Fe-Ni46 | French equivalent name for controlled expansion alloy with similar properties. |
| BS (British Standard) | NA13 | British grade used for hermetic sealing and glass-to-metal bonding components. |
Weight Chart (Approx.)
| Diameter (mm) | Diameter (inch) | Weight per Meter (kg/m) | Weight per Foot (lb/ft) |
|---|---|---|---|
| 3 | 1/8" | 0.056 | 0.038 |
| 6 | 1/4" | 0.224 | 0.150 |
| 8 | 5/16" | 0.398 | 0.267 |
| 10 | 3/8" | 0.616 | 0.414 |
| 12 | 1/2" | 0.887 | 0.596 |
| 16 | 5/8" | 1.579 | 1.060 |
| 20 | 3/4" | 2.466 | 1.656 |
| 25 | 1" | 3.850 | 2.584 |
| 30 | 1-1/4" | 5.540 | 3.717 |
| 40 | 1-1/2" | 9.850 | 6.610 |
| 50 | 2" | 15.410 | 10.350 |
| 60 | 2-3/8" | 22.180 | 14.900 |
| 80 | 3-1/8" | 39.460 | 26.530 |
| 100 | 4" | 61.500 | 41.300 |
| 150 | 6" | 138.500 | 93.000 |
| 200 | 8" | 246.000 | 165.000 |
The applications of our Alloy 46 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 46 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 46 Round Bar?
Alloy 46 Round Bar is a nickel-iron controlled expansion alloy containing approximately 46% nickel and the balance iron. It is specifically designed to have a thermal expansion rate similar to certain types of glass, making it ideal for glass-to-metal sealing applications in the electronics and instrumentation industries.
Q:What are the key features of Alloy 46 Round Bars?
Alloy 46 offers exceptional thermal stability, low thermal expansion coefficient, and high dimensional accuracy. It provides excellent oxidation resistance at elevated temperatures and retains good mechanical properties under a variety of environmental conditions. The alloy is non-magnetic and performs reliably in controlled expansion applications.
Q:Where are Alloy 46 Round Bars commonly used?
Alloy 46 Round Bars are used in electronic components, hermetic seals, vacuum tubes, lead frames, and transistor cases. They are also used in the aerospace and telecommunication industries for parts requiring a low expansion rate and compatibility with glass or ceramic materials.
Q:What are the mechanical properties of Alloy 46 Round Bars?
The alloy typically exhibits a tensile strength of around 520 MPa, yield strength of about 345 MPa, and elongation of 25%. It maintains stable properties at both sub-zero and moderately elevated temperatures. Its density is approximately 8.1 g/cm³, with a coefficient of thermal expansion of around 4.6 × 10⁻⁶/°C (between 20°C and 200°C).
Q:Can Alloy 46 Round Bars be machined or welded?
Yes, Alloy 46 can be machined using conventional methods similar to other nickel-iron alloys. It should be machined in the annealed condition to ensure dimensional stability. Welding can be performed using TIG or resistance welding methods, but it requires proper heat treatment afterward to maintain the alloy’s properties.
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 46 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