Hastelloy X Superalloy Powder for SLM

Category	Parameter	Value / Range
Typical Applications	Suitable Components	Aero-engine combustion chamber parts, honeycomb structures, diffusers, exhaust nozzles, and other hot-end components for long-term service below 900°C
Applicable Process	Additive Manufacturing	SLM (Selective Laser Melting)
Chemical Composition (wt.%)	C	0.05–0.15
	Cr	20.5–23.0
	Ni	Bal. (balance)
	Co	0.5–2.5
	W	0.2–1.0
	Mo	8.0–10.0
	S	≤0.015
	Ti	≤0.15
	Fe	17.0–20.0
	B	≤0.01
	Si	≤1.0
	Mn	≤1.0
	P	≤0.025
	Al	≤0.5
	Cu	≤0.5
	O	≤0.02
	N	≤0.02
Physical Properties	Particle Size (D10 / D50 / D90)	≥15 μm / 30–40 μm / ≤60 μm
	Sphericity	≥0.9
	Apparent Density (g/cm³)	≥4.4
	Tap Density (g/cm³)	≥5.0
	Flowability (s/50g)	≤18
Mechanical Properties (Heat-Treated)	Test Temperature	Room Temp / 900°C
	Tensile Strength (MPa)	≥700 / ≥220
	Yield Strength (MPa)	≥300 / ≥170
	Elongation (%)	≥30.0 / ≥20.0

1. Advantages and Features of This Hastelloy X Superalloy Powder

1.1 Optimized for Industrial Applications

Hastelloy X powder is specifically engineered for demanding aerospace and industrial applications requiring exceptional high-temperature performance. With long-term service capability below 900°C, this superalloy powder is ideal for manufacturing critical components such as aero-engine combustion chamber parts, honeycomb structures, diffusers, and exhaust nozzles through additive manufacturing.

1.2 Excellent SLM Processability

The powder’s optimized particle size distribution (D10 ≥15 μm / D50 30–40 μm / D90 ≤60 μm) ensures superior flowability (≤18 s/50g) and excellent powder bed uniformity during SLM processing. High sphericity (≥0.9) minimizes satellite particles and promotes consistent layer spreading, resulting in defect-free printed components with minimal porosity.

1.3 Robust Mechanical Performance

Hastelloy X delivers outstanding mechanical properties across temperature ranges. At room temperature, it achieves tensile strength ≥700 MPa, yield strength ≥300 MPa, and elongation ≥30.0%. Even at elevated temperatures of 900°C, it maintains impressive performance with tensile strength ≥220 MPa, yield strength ≥170 MPa, and elongation ≥20.0%, ensuring structural integrity in extreme environments.

1.4 Stable Physical Properties

Consistent powder characteristics including apparent density ≥4.4 g/cm³ and tap density ≥5.0 g/cm³ guarantee reliable packing behavior and predictable thermal conductivity during the SLM process. These stable physical properties contribute to uniform heat distribution and controlled solidification, minimizing residual stress and distortion.

1.5 High Purity & Compositional Control

Strict control of interstitial elements (O ≤0.02%, N ≤0.02%, S ≤0.015%, P ≤0.025%) ensures optimal high-temperature strength and oxidation resistance. The balanced composition with precise chromium (20.5–23.0%), molybdenum (8.0–10.0%), and iron (17.0–20.0%) content provides excellent corrosion resistance while maintaining weldability and fabricability.

2. Hastelloy X Superalloy Powder Material Overview

2.1 Chemical Composition Characteristics

Hastelloy X is a nickel-based solid solution strengthened superalloy with the following composition (wt.%):

Nickel (Ni): Balance (primary matrix element)
Chromium (Cr): 20.5–23.0% (provides oxidation and corrosion resistance)
Molybdenum (Mo): 8.0–10.0% (enhances strength and creep resistance)
Iron (Fe): 17.0–20.0% (cost-effective strengthening element)
Cobalt (Co): 0.5–2.5% (improves high-temperature stability)
Tungsten (W): 0.2–1.0% (contributes to solid solution strengthening)
Carbon (C): 0.05–0.15% (grain boundary strengthening)
Trace Elements: Ti ≤0.15%, Al ≤0.5%, Si ≤1.0%, Mn ≤1.0%, Cu ≤0.5%, B ≤0.01%
Interstitials: O ≤0.02%, N ≤0.02% (strictly controlled for optimal properties)

2.2 Powder Characteristics

Particle Size Distribution: D10 ≥15 μm, D50 30–40 μm, D90 ≤60 μm
Morphology: High sphericity ≥0.9 with smooth surfaces
Density: Apparent density ≥4.4 g/cm³, Tap density ≥5.0 g/cm³
Flowability: ≤18 seconds per 50 grams (Hall flowmeter)
Oxygen Content: ≤0.02% (maintains ductility and weldability)

3. Technical Advantages

Hastelloy X powder offers several key technical advantages for SLM applications:

Superior High-Temperature Strength: Maintains mechanical integrity up to 900°C, making it ideal for hot-section components
Excellent Oxidation Resistance: Chromium content provides protective oxide layer formation in high-temperature oxidizing environments
Outstanding Fabricability: Good weldability and formability enable complex geometries and post-processing operations
Controlled Thermal Expansion: Balanced composition ensures predictable thermal behavior during heating and cooling cycles
Consistent Print Quality: Optimized powder characteristics minimize defects and ensure repeatable manufacturing results

4. SLM Process Parameter Recommendations

For optimal results when processing Hastelloy X powder via SLM:

Laser Power: 250–400 W (depending on layer thickness and feature size)
Scan Speed: 800–1200 mm/s
Hatch Spacing: 80–120 μm
Layer Thickness: 30–50 μm
Scan Strategy: Island scanning or chessboard pattern to minimize residual stress
Preheat Temperature: 80–150°C (reduces thermal gradients and distortion)
Atmosphere: Argon or nitrogen with oxygen content <100 ppm
Build Orientation: Consider thermal management and support structure requirements for overhangs

5. Post-Processing Procedures

Recommended post-processing steps for Hastelloy X SLM components:

Stress Relief Annealing: 1100–1150°C for 1–2 hours, followed by air cooling
Solution Annealing (if required): 1175°C for 1 hour, rapid cooling
Support Removal: Mechanical or EDM methods for delicate features
Surface Finishing: Grinding, polishing, or shot peening as needed
Quality Inspection: Dimensional verification, surface roughness measurement, and non-destructive testing
Final Heat Treatment: Depending on specific application requirements

6. Performance Specifications

Mechanical Properties (Heat-Treated Condition)

Property	Room Temperature	900°C
Tensile Strength	≥700 MPa	≥220 MPa
Yield Strength (0.2%)	≥300 MPa	≥170 MPa
Elongation	≥30.0%	≥20.0%

Physical Properties

Density: ~8.22 g/cm³ (bulk material)
Melting Range: 1260–1355°C
Thermal Conductivity: ~11.4 W/m·K at 100°C
Coefficient of Thermal Expansion: ~14.2 × 10⁻⁶/°C (20–100°C)

7. Application Areas

Hastelloy X powder is particularly suited for:

Aerospace: Combustion chamber liners, turbine shrouds, exhaust components, afterburner parts
Energy: Gas turbine components, heat exchangers, furnace fixtures
Industrial: Chemical processing equipment, high-temperature tooling, thermal spray applications
Research & Development: Prototype testing, material validation, process optimization studies

8. Comparison with Similar Powders

Parameter	Hastelloy X	Inconel 718	Haynes 230	Hastelloy C-276
Max Service Temp	900°C	700°C	1150°C	980°C
Tensile Strength (RT)	≥700 MPa	≥1200 MPa	≥800 MPa	≥690 MPa
Oxidation Resistance	Excellent	Good	Exceptional	Excellent
Fabricability	Excellent	Good	Moderate	Good
Cost	Moderate	High	Very High	High
SLM Suitability	Excellent	Good	Good	Moderate

9. Precautions

When working with Hastelloy X powder for SLM:

Powder Handling: Use appropriate PPE and follow safety protocols for metal powder handling
Storage: Store in sealed containers under inert atmosphere to prevent moisture absorption and oxidation
Recycling: Limit powder reuse cycles to maintain consistent properties; monitor oxygen content regularly
Thermal Management: Account for high thermal conductivity during build planning to avoid overheating
Support Structures: Design adequate supports for overhangs and thin features to prevent warpage
Post-Processing: Plan for potential distortion during stress relief and heat treatment operations

10. Summary

Hastelloy X superalloy powder represents an excellent choice for SLM manufacturing of high-temperature components requiring exceptional oxidation resistance, good fabricability, and reliable mechanical performance up to 900°C. Its optimized powder characteristics ensure excellent processability, while the balanced chemical composition provides the ideal combination of strength, corrosion resistance, and thermal stability for demanding aerospace and industrial applications. With proper process parameters and post-processing, Hastelloy X enables the production of complex, high-performance components that would be difficult or impossible to manufacture using traditional methods. Hastelloy X powder is a premium nickel-based superalloy specifically engineered as additive manufacturing powder for selective laser melting (SLM) applications. This high-temperature alloy powder offers exceptional high-temperature strength and oxidation resistance, making it ideal for aerospace AM materials and critical aero-engine components such as combustion chamber powder applications. As a nickel-chromium-molybdenum powder with spherical superalloy powder morphology, it ensures optimal SLM process parameters and consistent build quality. The heat-resistant powder is perfect for demanding metal AM powder requirements, and Forgecise customization services can tailor AM material specifications to meet specific project needs, whether for research, prototyping, or industrial-scale production of high-performance components.

11. Customization Services by Forgecise

Forgecise delivers comprehensive superalloy powder customization solutions, spanning the complete spectrum from standard high-temperature formulations to customer-specific high-performance nickel-based superalloys. We support mainstream superalloy grades including Haynes 230, Inconel series, and Hastelloy variants, with the capability to precisely tailor chemical composition, particle size distribution, sphericity, oxygen/nitrogen content, and thermal expansion coefficient to match your exact industrial and manufacturing requirements. Our superalloy powders are optimized for demanding additive manufacturing processes including SLM and EBM, ensuring consistent printability, high density, superior high-temperature mechanical properties, and reliable performance in your final aerospace, energy, and industrial components.

FAQ:

Q1: What types of High-Temperature Alloy powders can Forgecise customize?

A: We provide comprehensive high-temperature alloy powder customization solutions tailored for extreme environment applications in aerospace, energy, and industrial sectors:
Haynes 230 Series (Nickel-Chromium-Tungsten-Molybdenum): Our flagship high-temperature superalloy offering exceptional oxidation resistance and thermal stability. Features tensile strength ≥800 MPa at room temperature and ≥230 MPa at 900°C, with elongation ≥30%. Ideal for aero-engine combustion chambers, turbine components, and high-temperature furnace fixtures.
Inconel Series (Nickel-Chromium-Iron): Including Inconel 625, 718, and 738 formulations optimized for high-strength, corrosion-resistant applications. Inconel 718 delivers outstanding tensile strength (≥1200 MPa) and excellent fatigue resistance for turbine blades and rocket engine components.
Hastelloy Series (Nickel-Molybdenum-Chromium): Such as Hastelloy X and C-276, designed for extreme corrosion resistance in aggressive chemical environments while maintaining high-temperature strength. Perfect for chemical processing equipment and exhaust systems.

Q2: Can the particle size and morphology of customized High-Temperature Alloy powders be precisely controlled?

A: Absolutely. High-temperature alloys require stringent control to ensure defect-free printing, consistent high-temperature performance, and reliable long-term service in extreme environments. We ensure:
Particle Size Range: Fully customizable D50 from 15–65 μm.
15–45 μm: Optimized for high-precision SLM to achieve fine surface finishes and complex geometries critical for thin-walled combustion chambers and intricate cooling channels.
45–105 μm: Suitable for larger-format printers, EBM processes, or components requiring higher build rates without sacrificing density.
Morphology & Flowability: We guarantee high sphericity (>95%) and smooth surfaces with minimal satellite particles. This ensures excellent flowability (≤18 s/50g for Haynes 230) and high packing density, which are critical for uniform powder spreading, reducing porosity, and achieving >99.5% relative density in printed high-temperature components.
Special Handling: High-temperature alloy powders are sensitive to oxygen and nitrogen pickup, which can compromise high-temperature strength and oxidation resistance. We provide inert gas packaging and recommend storage under argon atmosphere to maintain interstitial element levels (O < 0.02%, N < 0.02%) throughout the printing lifecycle.

Q3: How long does the customization process take? How is quality guaranteed?

Development Timeline: Small-batch prototyping (1–10kg) typically takes 3–4 weeks. Mass production timelines depend on order volume and atomization scheduling.
Quality Assurance: Tool steel powders are sensitive to moisture and oxidation. Every batch comes with a comprehensive Certificate of Analysis (CoA), including:Chemical Composition: Precise ICP analysis of alloying elements (Ni, Co, Mo, Ti) and interstitials (O, N, C). Low carbon content is critical for weldability.
Particle Size Distribution: Laser diffraction analysis (D10, D50, D90) to ensure printability.
Powder Characterization: Hall Flowmeter testing and Apparent/Tapped Density measurements.
Morphology: SEM imaging to verify sphericity and check for internal porosity or satellites.
Standards Compliance: We strictly adhere to ASTM and ISO standards for metal powders to ensure consistency and repeatability in your additive manufacturing process.

Q4: What is the minimum order quantity (MOQ)? Do you support R&D-scale small batches?

A: We offer flexible solutions to support every stage of innovation:
R&D Validation: We support orders starting from 1kg, allowing researchers and mold designers to screen materials and optimize print parameters (laser power, scan speed) without high inventory costs.
Pilot Production: 10–100kg batches with rapid delivery to support pilot runs, mold trials, and small-series manufacturing.
Scaled Supply: We have ton-scale continuous production capacity to ensure a stable supply chain for industrial manufacturing and large-scale mold production.
We understand that material innovation starts small, so we provide barrier-free access for startups, universities, and research labs developing next-generation tooling.

Q5: How do I initiate a customization project? What information is required?

A: Three simple steps to get started:
Requirement Discussion: Provide your target application (e.g., injection molding inserts, aerospace brackets, cutting tools), key performance needs (hardness, toughness, thermal conductivity), and the specific 3D printing equipment you are using.
Solution Design: Our materials engineers will recommend the optimal alloy system, particle size distribution, and atomization process to balance performance, cost, and printability.
Sample Confirmation: We deliver prototype powder → You validate via printing and heat treatment → Mass production delivery upon approval.
Simply submit your preliminary requirements via email or our online form, and we will provide technical support within 48 hours.

Key Features

High Speed, High Precision, High Quality

Laboratory setting showing gloved hands holding innovative 3D printed metal structures.

Forgecise Metal 3D Printers – SLM Series

Excellent as-built surface finish – Parts achieve good surface quality without post-polishing.
High dimensional accuracy – Ideal for producing precision prototypes.
Direct fabrication of metal end-use parts – Eliminates intermediate steps.
Fully dense metallurgical structure (>99% density) – Eliminating the need for post-processing.
Rapid build times – Parts can be completed depending on size and complexity.
Complex geometries made possible – Functional features such as snap-fits and living hinges can be printed directly.
Broad material compatibility – Supports a wide range of metal powders.
Perfect for custom, low-volume production – small-batch manufacturing.

Hastelloy X Superalloy Powder for SLM | High-Temperature Aerospace AM Material

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