Best Hastelloy X Powderˆ÷High temperature alloy Powder for 3D Printing

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Overview of Hastelloy X Powder Hastelloy X is a nickel-based superalloy powder known for its excellent high temperature strength, oxidation resistance, and fabricability. It has applications in the aerospace, industrial, and energy industries where parts are exposed to extreme environments. This article provides a comprehensive guide to Hastelloy X powder. It covers the composition, properties,…

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Overview of Hastelloy X Powder

Hastelloy X is a nickel-based superalloy powder known for its excellent high temperature strength, oxidation resistance, and fabricability. It has applications in the aerospace, industrial, and energy industries where parts are exposed to extreme environments.

This article provides a comprehensive guide to Hastelloy X powder. It covers the composition, properties, applications, specifications, suppliers, handling, inspection, comparisons, pros and cons, and frequently asked questions about this versatile alloy powder. Quantitative data is presented in easy-to-read tables for quick reference.

Composition of Hastelloy X Powder

Hastelloy X has a complex composition optimized for high temperature performance. The main alloying elements are nickel, chromium, iron, and molybdenum.

Elemento % Peso Ruolo
Nickel Equilibrio Matrix element, provides corrosion resistance
Chromium 21.5 – 23.5 Oxidation resistance, formation of protective Cr2O3
Ferro 17 – 20 Solid solution strengthening
Molibdeno 8 – 10 Solid solution strengthening, creep resistance
Cobalto 1 max Enhances hot workability
Manganese 1 max Disossidante
Silicio 0,5 max Disossidante
Carbonio 0.15 max Formatore in carburo

Trace additions of boron, zirconium, and carbon are also made to optimize properties like creep resistance. The balance nickel content provides corrosion resistance.

Properties of Hastelloy X Powder

Hastelloy X exhibits an excellent combination of properties for high temperature applications:

Proprietà Descrizione
Resistenza alle alte temperature Excellent creep rupture strength up to 1150¡«C
Resistenza all'ossidazione Resists oxidation in air up to 1200¡«C
Thermal fatigue resistance Resists cracking during thermal cycling
Fabricability Easy to form and weld compared to other superalloys
Resistenza alla corrosione Resists many oxidizing and reducing environments

Grain size control and thermomechanical processing modifies properties like tensile strength and ductility.

Applicazioni della polvere di Hastelloy X

The unique properties of Hastelloy X enable critical applications including:

Industria APPLICAZIONI
Aerospaziale Jet engine combustion liners, afterburners, exhaust parts
Industriale Reformer tubes, heat treatment equipment
Energia Nuclear & fossil fuel power generation, chemical processing
Automotive Exhaust system components, turbocharger parts

The oxidation resistance allows thin section capabilities needed for jet engine combustion liners. It also suits the extremes of chemical processing vessels and tubing.

Specifications of Hastelloy X Powder

Hastelloy X powder is commercially available with specifications per alloy grade:

Parametro Specificazione
Alloy grades Hastelloy X, B3, BC3, BN
Dimensione particellare 15-45 microns, 45-105 microns
Forma delle particelle Spherical, irregular morphology
Densità apparente 2.5-4.5 g/cc
Densità del materiale compattato 4-6 g/cc
Purezza >99,9%
Contenuto di ossigeno <1000 ppm
Contenuto di umidità <0,2%

Other custom size distributions, purity levels, particle shapes and alloy modifications are possible for special applications.

Suppliers of Hastelloy X Powder

Hastelloy X powder is available from the following specialty alloy powder manufacturers:

Fornitore Ubicazione
Tecnologia per falegnami USA
Sandvik Svezia
Erasteel Francia
Aperam Brasile
VDM Metals Germania
Nippon Yakin Giappone

Pricing ranges from $50/kg to $120/kg based on factors like particle size, shape, alloy grade and purchase volume.

Handling and Storage of Hastelloy X Powder

As a reactive metal powder, Hastelloy X requires controlled handling and storage:

  • Conservare in contenitori sigillati in un ambiente fresco e asciutto.
  • Avoid contact with moisture, acids, halogen compounds
  • Ground containers and transfer equipment to prevent static buildup
  • Utilizzare utensili anti scintilla e minimizzare la formazione di polvere
  • Prevent accumulation of dusts to reduce explosion risk
  • Wear appropriate PPE and avoid inhalation of powders

Proper precautions during handling, storage and processing are critical for safety and quality.

Inspection and Testing of Hastelloy X Powder

Hastelloy X powder batches are tested to ensure they meet specifications:

Metodo di Test Parameters Checked
Analisi granulometrica Distribuzione granulometrica
Densità apparente Scorrimento della polvere
Densità del materiale compattato Packed density
Microscopia elettronica a scansione Morfologia delle particelle
Energy dispersive X-ray Chemistry, alloy composition
Diffrazione dei raggi X Fasi presenti
Inductively coupled plasma Trace element analysis

Sampling and testing as per ASTM standards ensures batch-to-batch consistency and quality.

Comparing Hastelloy X to Alternatives

Hastelloy X has advantages and limitations compared to other superalloys:

Lega Resistenza all'ossidazione Fabricability Costi
Hastelloy X Eccellente Bene Elevato
Inconel 625 Bene Eccellente Intermedio
Haynes 230 Eccellente Scarso Elevatissimo
Inconel 718 Intermedio Fiera Intermedio

Hastelloy X provides the best combination of oxidation resistance, fabricability, and cost for many high temperature applications.

Pros and Cons of Hastelloy X Powder

* Alta densità: maggiore capacità di archiviazione in un fattore di forma più piccolo * Bassa latenza: tempi di accesso più rapidi rispetto ai dischi rigidi tradizionali * Elevata larghezza di banda: velocità di trasferimento dati più elevate * Maggiore affidabilità: meno parti mobili rispetto ai dischi rigidi tradizionali, riducendo il rischio di guasti * Maggiore efficienza energetica: consumo energetico inferiore rispetto ai dischi rigidi tradizionali * Silenzioso: nessun rumore di ricerca o rotazione Contro
Excellent high temperature strength Expensive compared to stainless steels
Eccezionale resistenza all'ossidazione Lower fabricability than Inconel 625
Thermal fatigue resistance Susceptible to embrittlement at lower temperatures
Ease of welding and machining Requires controlled handling and processing
Resists many corrosive environments Limited data available compared to popular alloys

Hastelloy X enables exceptional performance but requires care in processing and has high material cost.

Frequently Asked Questions about Hastelloy X Powder

Here are answers to some common questions about Hastelloy X powder:

Q: What is Hastelloy X used for?

A: Hastelloy X is used in aircraft engines, industrial furnaces, chemical processing, and power generation applications where strength and oxidation resistance at extreme temperatures are required.

Q: What is the difference between Hastelloy X and Hastelloy C?

A: Hastelloy X has addition of iron and higher molybdenum content. This gives better fabricability and high temperature strength compared to Hastelloy C which relies only on chromium for oxidation resistance.

Q: Is Hastelloy X weldable?

A: Yes, Hastelloy X has good weldability compared to other nickel superalloys, making it suitable for fabrication of complex components. Proper welding process and parameters must be used to avoid cracking.

Q: What is the temperature range of Hastelloy X?

A: It maintains good strength and oxidation resistance up to 1100¡«C for prolonged service. Shorter exposures up to 1200¡«C are possible. Lower temperatures can cause embrittlement.

Q: Is Hastelloy X magnetic?

A: No, Hastelloy X is non-magnetic, with magnetic permeability close to 1. This makes it useful for certain electronic and high temperature applications.

Q: What corrosion environments can Hastelloy X withstand?

A: It exhibits excellent corrosion resistance to oxidizing acids, halogens, sulfidation, and stress corrosion cracking environments found in chemical processing.

Q: Does Hastelloy X contain cobalt?

A: Most grades of Hastelloy X contain 1% or less cobalt. Cobalt-free variants are also available for biomedical applications where cobalt can cause negative health effects.

Q: What are the contents of a Hastelloy X powder MSDS?

A: It provides composition data, health and reactivity hazards, handling guidance, storage requirements, spill and firefighting procedures, transport information and disposal guidelines that are essential to review before use.

Q: Can Hastelloy X powder be 3D printed?

A: Yes, Hastelloy X alloy powders can be used in laser and electron beam powder bed fusion additive manufacturing processes. Parameters are optimized to provide dense, crack-free parts.

Q: How is Hastelloy X powder made?

A: Gas atomization is the common production method where the alloy melt is broken into fine droplets and rapidly solidified into powder. Water atomization is also used either by itself or with gas atomization.

Q: What are the alternatives to Hastelloy X?

A: Alternatives include Inconel 617, Haynes 230, Inconel 625, and stainless steels like 310 and 330. They offer lower cost but cannot match the oxidation resistance of Hastelloy X in extreme environments.

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