Hastelloy X Nickel Alloy Round Bar / UNS N06002 Bars Custom Cutting in Length Alloy X Billet

Product Overview

Hastelloy X, also known as UNS N06002 or Alloy X, is a nickel-chromium-iron-molybdenum alloy specifically designed for extreme temperature and corrosive environments. This solid solution strengthened nickel-base superalloy delivers exceptional oxidation resistance and high-temperature strength, making it an ideal choice for aerospace, industrial furnace, and chemical processing applications. Our Hastelloy X round bars are manufactured to strict quality standards and available for custom cutting to meet your specific project requirements.

Our Hastelloy X round bars maintain excellent strength in oxidizing atmospheres up to 1200°C (2200°F) and in reducing atmospheres up to 980°C (1800°F), with outstanding resistance to sulfidation, carburization, and other high-temperature degradation processes. The alloy exhibits good fabrication characteristics, including weldability and formability, allowing for versatile manufacturing possibilities across various industries.

Chemical Composition (Weight %)

The chemical composition of Hastelloy X is carefully balanced to provide optimal performance in high-temperature environments:

Table 1: Chemical composition of Hastelloy X round bars 

Physical Properties

Hastelloy X possesses physical characteristics that make it particularly suitable for high-temperature applications:

Table 2: Physical properties of Hastelloy X 

Mechanical Properties

Hastelloy X maintains excellent mechanical properties at both room and elevated temperatures:

Room Temperature Mechanical Properties (Solution Annealed Condition)

Table 3: Typical mechanical properties of Hastelloy X round bars at room temperature 

Elevated Temperature Properties

Hastelloy X retains significant strength at elevated temperatures, with tensile strength of approximately 310 MPa at 815°C, making it suitable for high-stress applications in extreme environments .

Technical Specifications

Our Hastelloy X round bars are available in various specifications to meet diverse industrial requirements:

Table 4: Technical specifications of Hastelloy X round bars 

Production Process

Manufacturing Excellence

Our Hastelloy X round bars are produced using advanced metallurgical processes including Vacuum Induction Melting (VIM) or Vacuum Induction Melting plus Electroslag Remelting (VIM + ESR) to ensure precise chemical composition control, reduced gas content, and elimination of harmful impurities . This results in enhanced purity and uniform microstructure throughout the material.

Hot Working

The hot working process for Hastelloy X involves heating the material to 1170°C ±10°C for forging, with final forging temperature not lower than 950°C . This controlled thermomechanical processing ensures optimal grain structure and mechanical properties in the final product.

Quality Assurance

All Hastelloy X round bars undergo rigorous testing including ultrasonic inspection, dimensional accuracy checks, surface quality assessment, mechanical property testing, and chemical composition verification to guarantee compliance with international standards .

Applications

Hastelloy X round bars are specified for critical components across multiple industries:

• Aerospace Industry: Combustion chamber components, flame holders, transition ducts, turbine casings, and afterburner parts for jet engines 

• Industrial Gas Turbines: Burner cans, transition pieces, flame tubes, nozzle rings, and structural components 

• Industrial Furnaces: Radiation tubes, furnace rolls, retorts, internal supports, hot air ducts, and burner nozzles 

• Chemical Processing: High-temperature reactor components, heat exchanger tubing, pyrolysis tubes, reformer tubes, and fixture materials 

• Nuclear Power: Components for high-temperature gas-cooled nuclear reactors 

Fabrication Characteristics

Machining and Forming

Hastelloy X exhibits good machinability in the solution annealed condition using conventional methods, though it requires more power than machining stainless steels. The alloy can be cold formed using standard techniques, with intermediate annealing recommended for severe deformation .

Welding

Hastelloy X offers excellent welding characteristics and can be readily joined using Gas Tungsten Arc Welding (GTAW/TIG), Gas Metal Arc Welding (GMAW/MIG), and Shielded Metal Arc Welding (SMAW) methods. For TIG welding, matching filler metals such as HHastelloyX or HGH3113 welding wire are recommended .

Heat Treatment

Optimal properties are achieved through solution treatment at 1175°C ±15°C followed by rapid cooling . For stress relief after machining or welding, heat treatment at 870°C ±10°C for 30-60 minutes with air cooling is recommended.

Packaging and Delivery

We offer flexible packaging options to ensure product integrity during transportation and storage:

• Standard packaging: Water-proofed bags or standardized wooden cases

• Custom packaging available according to customer specifications

• Inner packaging: Inert gas environment with vacuum aluminum foil bags

• Various quantity options from sample sizes (1kg) to full production quantities

Why Choose Our Hastelloy X Round Bars?

• Consistent Quality: Strict adherence to international standards including ASTM B572, ensuring reliable performance in critical applications 

• Custom Solutions: Available in diameters from 6mm to 500mm with custom cutting to your specified lengths

• Technical Expertise: Comprehensive support for material selection, fabrication guidance, and application optimization

• Competitive Pricing: Direct manufacturing relationships enable cost-effective pricing without compromising quality

• Traceability: Complete material traceability with certified mill test reports for every shipment

Hastelloy X round bars represent an optimal solution for engineers and designers working with high-temperature applications requiring exceptional oxidation resistance, creep strength, and fabricability. Contact our technical team to discuss how our Hastelloy X round bars can meet your specific application requirements.