Hastelloy X

Hastelloy X is a nickel-based alloy made for high heat and tough environments. It combines nickel, chromium, iron, and molybdenum to create a strong and stable material. The alloy was developed for use in extreme conditions where both strength and corrosion resistance are required. With about 47% nickel, it resists rust and cracking. Chromium (20.5–23%) helps it fight oxidation, especially at high temperatures. Iron (17 – 20%) supports its structure, while molybdenum (8–10%) strengthens it against chemical damage. If any of these drop too low, the material becomes weaker or less heat-resistant. Smaller elements like tungsten, cobalt, and carbon also play a part. Each one improves performance in specific ways. The balance of these component is what makes Hastelloy X composition so effective for harsh industrial settings.

Parag Metals supplies high grade Hastelloy X in multiple forms including bar, sheet, plate, disk and forged or machined parts. This alloy is built to perform in high temperatures and tough pressure zones. It handles stress well, with a tensile strength of 755 MPa and yield strength of 385 MPa. With good elongation and elasticity, it shapes easily during fabrication. The Rockwell hardness level of 87 adds to its toughness. We supply materials that meet strict quality checks, making them suitable for heavy-duty use across industries.

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Hastelloy X Sheet, Hastelloy X Plate, Hastelloy X Coils, Hastelloy X Rods, Hastelloy X Wires Suppliers in Mumbai, India.

Hastelloy X has stable physical properties that support its use in high-temperature machinery. It has a density of 8.220 g/cm³ and a melting point of 1316°C. The alloy is often stress relieved at 400–450°C for two hours and cooled by air. It can be cold worked and then solution annealed at 1177°C for restoring strength. Hastelloy X heat treatment improves performance after processing. It does not need preheating or post-heating for welding. TIG, MIG, and resistance welding all work well with matching filler metals. Forging and forming use standard methods. Hastelloy X machinability is smooth with basic tools, though it needs more force due to its stiffness. Cold working increases its strength, while aging at 649–871°C can improve hardness further.

Hastelloy X follows ASTM specifications that define its quality, properties, and performance. These standards are key for use in critical industries where material failure is not an option. This alloy is used in gas turbines, aircraft combustion zones, heat treating equipment, and chemical reactors. It handles oxidizing, reducing, and neutral conditions with ease. Hastelloy X is also used in furnace parts, exhaust systems, and industrial heating units. It holds up under pressure and heat, making it one of the most trusted materials for high-demand environments.

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Hastelloy X Specification

This section covers the specification details of Hastelloy X. These values help confirm the material’s compliance with industrial quality standards and performance expectations in high-temperature service.

Product	Standard / UNS
UNS	N06002
Sheet, Plate & Strip	AMS 5536, SB 435, B 435
Billet, Rod & Bar	AMS 5754, SB 572, B 572, B 472
Bare Welding Rods & Wire	SFA 5.14 / A 5.14 (ERNiCrMo-2), AMS 5798
Seamless Pipe & Tube	SB 622, B 622
Fittings	SB 366, B 366
Forgings	AMS 5754
DIN	17742 No. 2.4665 NiCr22Fe18Mo
Others	NACE MR0175, ISO 15156

Hastelloy X Chemical Composition

The chemical makeup of Hastelloy X plays a key role in its strength and corrosion resistance. This table outlines the Hastelloy X composition, showing how each element contributes to the alloy’s stability under heat and stress.

Ni	Cr	Fe	Mo	Co	Mn, Si, C
~47% (balance)	20.5–23.0%	17.0–20.0%	8.0–10.0%	Up to 1.0%	<1% total

Hastelloy X Mechanical Properties

Understanding Hastelloy X mechanical properties is important for design and application. The table shares performance data like strength, hardness, and flexibility that help users match the alloy to the right job.

Mechanical Property	Value	Description
Tensile Strength	755–823.9 MPa	Maximum stress before breaking
Yield Strength	385–445 MPa	Stress at which plastic deformation begins
Elastic Modulus	203.8–205 GPa	Stiffness of the alloy
Uniform Elongation	56.5%	Ductility under tension
Hardness	262.7 HV	Surface wear resistance
Stress-Corrosion Cracking Resistance	Excellent	Reliable in harsh, corrosive environments

Hastelloy X Physical Properties

This section highlights hastelloy x density and melting point. It also explains how Hastelloy X heat treatment affects the material and gives insight into Hastelloy X machinability during production.

Property	Value/Description
Density	~8.22 g/cm³
Magnetic Behavior	Non-magnetic
Corrosion Resistance	Excellent in oxidizing/reducing environments
Oxidation Resistance	Outstanding at high temperatures
Surface Stability	Forms protective oxide layer