OP431 Powder

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OP431 Powder

Product OP431 Powder
CAS No. 431-03-8
Appearance Light Gray Powder
Purity ≥99%,  ≥99.9%,  ≥95%(Other purities are also available)
APS 1-5 µM, 10-53 µM  (Can be customized),  Ask for other available size range.
Ingredient Fe-W-Mo-Cr-V-Co
Density 7.8-8.1g/cm3
Molecular Weight N/A
Product Codes NCZ-DCY-357/25

OP431 Description:

OP431 Powder is one of the numerous advanced ceramic materials manufactured by Nanochemazone. Nanochemazone produces too many standard grades when applicable, including Mil Spec (military grade); ACS, Reagent and Technical Grade; Food, Agricultural and Pharmaceutical Grade; Optical Grade, USP and EP/BP (European Pharmacopoeia/British Pharmacopoeia) and follows applicable ASTM testing standards. Typical and custom packaging is available. Additional technical, research and safety (MSDS) information are available. Please request a quote above for more information on lead time and pricing.

OP431 Powder Related Information :

Storage Conditions:

Airtight sealed, avoid light and keep dry at room temperature.

Please contact us for customization and price inquiry

Email: [email protected]

Note: We supply different size ranges of Nano and micron as per the client’s requirements and also accept customization in various parameters.

Stainless Steel OP431 Powder

Stainless steel OP431 powder is a powdered form of stainless steel that consists of iron, chromium, nickel, and other alloying elements. It is manufactured through a specialized process called atomization, where molten stainless steel is rapidly cooled using gas or water, resulting in the formation of fine metal particles.

Overview of Stainless Steel OP431 Powder

OP431 stainless steel belongs to the ferritic grade steels which contain chromium as the principal alloying element. The addition of aluminum enhances oxidation and corrosion resistance at high temperatures.

Key characteristics of OP431 powder include:

Excellent oxidation and corrosion resistance up to 1150°C

Good creep resistance and thermal fatigue strength

Excellent thermo-mechanical stability

High thermal conductivity and low thermal expansion

Cost-effective compared to austenitic stainless steels

Available in various particle size distributions

OP431 powder is ideal for applications requiring oxidation resistance, thermal stability and moderate strength at elevated temperatures.

Chemical Composition of OP431 Powder

OP431 powder has the following nominal composition:

Element Weight %
Iron (Fe) Balance
Chromium (Cr) 16-18%
Aluminum (Al) 3-5%
Yttrium (Y) 0.2-0.5%
Carbon (C) 0.03% max
Silicon (Si) 1% max
Manganese (Mn) 1% max

Properties of OP431 Powder

Key properties of OP431 powder include:

Property Value
Density 7.3 g/cm3
Melting Point 1400-1450°C
Thermal Conductivity 29 W/mK
Electrical Resistivity 0.6 μΩ.cm
Young’s Modulus 200 GPa
Poisson’s Ratio 0.27-0.30
Tensile Strength 450-650 MPa
Yield Strength 280-480 MPa
Elongation 15-20%
Oxidation Resistance Excellent up to 1150°C

The properties like high temperature strength, oxidation resistance, and thermal stability make OP431 suitable for demanding applications.

Production Method for OP431 Powder

OP431 powder can be produced via:

Gas Atomization – High pressure inert gas used to atomize the molten alloy resulting in fine spherical powder ideal for AM.

Water Atomization – High velocity water jet breaks up the molten stream producing irregular powder particles. Lower cost but higher oxygen pickup.

Mechanical Alloying – Ball milling of blended elemental powders followed by sintering and secondary atomization.

Gas atomization allows excellent control over particle size distribution, morphology, oxygen pickup and microstructure.

Applications of OP431 Powder

Typical applications of OP431 powder include:

Additive Manufacturing – Selective laser melting to produce complex parts needing high temperature oxidation resistance.

Thermal Spray Coatings – Applied via arc spraying to provide protective coatings on components operating at over 1000°C.

Brazing Filler – For joining ferritic stainless steel parts in high temperature applications.

Solid Fuel Igniters – Powder metallurgy igniter plugs used in industrial furnaces and turbines.

Molten Metal Processing – Powder metallurgy conveyor rolls, tundishes and ladles used in molten metal handling.

Specifications of OP431 Powder

OP431 powder is available under various size ranges, shapes and grades:

Particle Size: From 15-45 μm for AM methods, up to 150 μm for thermal spray processes.

Morphology: Spherical, irregular and blended shapes. Spherical powder has excellent flowability.

Purity: From commercial to high purity grades based on application requirements.

Oxygen Content: Levels maintained below 2000 ppm for most applications.

Flow Rate: Powder can be customized for flow rates above 25 s/50 g.

Storage and Handling of OP431 Powder

OP431 powder requires the following storage and handling:

Should be stored in sealed containers under inert gas to prevent oxidation

Avoid accumulation of fine powder to minimize dust explosion risks

Use proper PPE, ventilation, grounding and safety practices during handling

Prevent contact between powder and incompatible materials

Follow safety guidelines provided by supplier SDS

Proper protective measures must be taken when handling this reactive alloy powder.

Inspection and Testing of OP431 Powder

Key quality control tests performed on OP431 powder include:

Chemical analysis using OES or XRF to ensure composition is within specified limits

Particle size distribution as per ASTM B822 standard

Morphology analysis through SEM

Powder flow rate measured as per ASTM B213 standard

Oxygen and nitrogen content testing by inert gas fusion

Density determined by helium pycnometry

Microstructure characterization by XRD

Thorough testing ensures the powder meets the required chemical, physical and microstructural characteristics for the intended application.

Comparison Between OP431 and 316L Stainless Steel Powders

OP431 and 316L stainless steel powders are compared:

Parameter OP431 316L
Type Ferritic Austenitic
Cr content 16-18% 16-18%
Ni content 10-14%
High temperature strength Higher Lower
Corrosion resistance Moderate Excellent
Cost Lower Higher
Applications Thermal spray, igniters Automotive, construction
Weldability Poor Excellent

OP431 offers much better high temperature strength whereas 316L provides excellent fabrication characteristics and corrosion resistance.

OP431 Powder FAQs

Q: How is OP431 powder produced?

A: OP431 powder is commercially produced using gas atomization, water atomization, and mechanical alloying followed by sintering. Gas atomization provides the best control of powder characteristics.

Q: What are the main applications of OP431 powder?

A: Key applications include thermal spray coatings, additive manufacturing, brazing filler, powder metallurgy igniter plugs, and high temperature molten metal handling components where oxidation resistance is needed.

Q: What is the typical OP431 powder size range used in metal AM?

A: For most metal AM processes, the ideal OP431 powder size range is 15-45 microns with spherical morphology and good powder flow characteristics.

Q: Does OP431 powder require any special handling precautions?

A: Yes, it is recommended to handle this reactive powder carefully under inert atmosphere using proper ventilation, grounding, and PPE.

Q: Where can I purchase OP431 powder suitable for thermal spray coatings?

A: For thermal spray applications requiring high temperature oxidation resistance, OP431 powder can be purchased from leading manufacture.

Description

Description
Note: For pricing & ordering information, please get in touch with us at [email protected]
Please contact us for quotes on Larger Quantities and customization. E-mail: [email protected]

Customization:
If you are planning to order large quantities for your industrial and academic needs, please note that customization of parameters (such as size, length, purity, functionalities, etc.) is available upon request.

NOTE:
Images, pictures, colors, particle sizes, purity, packing, descriptions, and specifications for the real and actual goods may differ. These are only used on the website for the purposes of reference, advertising, and portrayal. Please contact us via email at [email protected] or by phone at (+1 780 612 4177) if you have any 

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