304l Stainless Steel Powder

304l Stainless Steel Description:

304l Stainless Steel 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.

304l Stainless Steel Powder Related Information :

Storage Conditions:

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

Please contact us for customization and price inquiry

Email: contact@nanochemazone.com

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

304l Stainless Steel Powder

304L stainless steel powder is an austenitic chromium-nickel stainless steel powder with low carbon content. It offers excellent corrosion resistance, good formability and weldability, and widely used for powder metallurgy applications. The ‘L’ denotes lower carbon compared to 304 standard grade. The low carbon minimizes carbide precipitation and maximizes corrosion resistance. Powder metallurgy 304L provides a cost-effective alternative to 316L for non-critical applications not needing molybdenum alloying.

Overview

304L stainless steel powder is an austenitic chromium-nickel stainless steel powder with low carbon content. It offers excellent corrosion resistance, good formability and weldability, and widely used for powder metallurgy applications.

The ‘L’ denotes lower carbon compared to 304 standard grade. The low carbon minimizes carbide precipitation and maximizes corrosion resistance. Powder metallurgy 304L provides a cost-effective alternative to 316L for non-critical applications not needing molybdenum alloying.

This article provides an in-depth look at 304L stainless steel powder covering composition, properties, processing, applications, specifications, suppliers, costs, and other technical details.

Composition

The nominal composition of 304L stainless steel powder is listed below:

Table: Typical composition of 304L stainless steel powder

Chromium and nickel are the main alloying elements. Chromium provides corrosion and oxidation resistance. Nickel enhances ductility, toughness, and weldability.

Manganese and silicon increase strength. Carbon is kept very low for optimum corrosion resistance. Sulfur, phosphorus, and nitrogen are impurities that are minimized.

Properties

Key properties of 304L stainless steel powder in the annealed condition are provided below:

Table: Properties of 304L stainless steel powder

The combination of properties make 304L highly useful for a wide range of applications. The austenitic microstructure provides ductility, toughness, and non-magnetic behavior. 304L has excellent corrosion resistance comparable to 316L stainless steel.

By selecting ultra-low carbon powder, carbide precipitation can be avoided to maximize corrosion resistance in critical applications. Strength and hardness can be increased through cold working.

Applications

Typical applications for 304L stainless steel powder include:

Food processing equipment

Pharmaceutical tooling

Chemical plant components

Architectural panels, railings

Medical instruments and implants

Marine hardware, fittings, fasteners

Consumer products, appliances

Powder metallurgy mechanical parts

3D printing powders

304L provides cost-effective corrosion resistance versus 316L when molybdenum alloying is not needed for highly corrosive environments. The excellent polishability and non-magnetic properties also suits 304L for architectural cladding and hardware components.

Powder metallurgy is commonly used to produce small precision parts from 304L at high volumes versus machining. Additive manufacturing utilizes 304L powder for prototypes, tooling, and end-use components across industries.

Powder Manufacturing

304L stainless steel powder is commercially manufactured via gas atomization or water atomization processes.

In gas atomization, a high pressure inert gas stream disintegrates the molten metal into fine droplets, producing spherical powders ideal for additive manufacturing and MIM. Particle size distribution is controlled through process parameters.

Water atomization uses high pressure water jets to break up the metal stream into fine particles. This generates irregular, satellite particle shapes. The powder requires post-treatment for additive manufacturing.

Plasma atomization is sometimes used to produce very spherical, clean powders from a metal plasma stream in a controlled inert atmosphere. This ensures high purity and flowability.

Powder Specifications

304L stainless steel powder is commercially available in various size ranges, morphologies, and quality levels. Some typical powder specifications are below:

Table: 304L stainless steel powder specifications

Smaller particle sizes below 45 μm are preferred for capturing fine features in additive manufacturing. Spherical particles provide good flowability. Apparent density correlates with powder packing efficiency.

High purity, low oxygen, and controlled moisture levels ensure quality sintered properties. Gas atomized powder offers the best specifications for critical applications.

Standards and Grades

304L stainless steel powder complies with the following standards:

ASTM A240 – Standard for chromium and chromium-nickel stainless steel plate, sheet, and strip

ASTM A313 – Standard for stainless steel spring wire

ASTM A314 – Standard for stainless steel bent wire

AMS 5501 – Stainless steel bars, wire, forgings, tubing with low carbon

AMS 5647 – Stainless steel powder, atomized, 304L

Equivalent grades include:

UNS S30403

Werkstoff No. 1.4306

SUS 304L

SS2348

Powder Storage and Handling

To prevent contamination and maintain powder properties, 304L stainless steel powder should be stored and handled as follows:

Store in sealed containers in a cool, dry environment

Use inert gas purging or vacuum to prevent moisture pickup

Keep away from sparks, flames, and ignition sources

Ground all powder handling and transfer equipment

Avoid contact with contaminants like oil, grease, paints, etc.

Use PPE – mask, gloves, eye protection when handling powder

Powder spills should be promptly cleaned using non-sparking tools and HEPA vacuuming. Powders are moderately sensitive to moisture and air exposure. Proper storage is key.

Metal Injection Molding

304L is widely used for metal injection molding of small, complex parts leveraging powder metallurgy. Key considerations include:

Feedstock: 60-68% powder loading with multi-component binder system

Molding: High shot size, fast injection speed, high holding pressure

Debinding: Solvent debinding followed by thermal debinding

Sintering: 1350-1400°C in hydrogen or vacuum atmosphere

Secondary Operations: Machining, laser marking, passivation, electropolishing

MIM service bureaus have established best practices for high-performance 304L parts with as-sintered properties approaching wrought material.

Design for AM

For additive manufacturing using 304L stainless steel powder, key design guidelines include:

Maintain wall thicknesses above 1 mm

Use self-supporting geometries with angles above 45°

Include drain holes to remove unfused powder

Observe build orientation effects on properties

Account for 20-25% shrinkage when designing mating parts

Include machining allowances of 0.5-1 mm for critical fits

Reduce overhangs, bridges, fine details that require supports

Quality Control

Quality control testing performed on 304L stainless steel powder includes:

Chemical analysis – ICP and OES to verify composition

Particle size analysis – Laser diffraction particle size analyzer

Powder morphology – SEM imaging at high magnifications

Apparent density and tap density – Hall flowmeter method

Powder flow rate – Hall flowmeter funnel method

Loss on ignition – ASTM E sin gravity furnace

Moisture analysis – Karl Fischer titration, LECO analysis

For sintered MIM parts, testing includes:

Dimensional tolerances – CMM inspection

Density – Archimedes method

Microstructure – Optical microscopy, image analysis

Mechanical testing – Hardness, tensile, fatigue, Charpy impact

Health and Safety

Like most stainless steel powders and parts, 304L poses little health risk with proper handling:

Wear PPE when handling powder – mask, gloves, goggles

Avoid skin contact to prevent sensitization

Use HEPA-filtered vacuum for clean-up of dust and powder

Avoid breathing any welding or melting fumes

Dispose according to local environmental regulations

Ensure adequate ventilation and respiratory protection if grinding or machining sintered parts

No special disposal precautions are needed for 304L. With sound procedures, it poses minimal hazard for workers and the environment.

FAQ

1.What is the difference between 304 and 304L stainless steel powder?

304L has lower carbon content (<0.03%) than 304 (<0.08%) for better corrosion resistance,especially for welding. 304 is more common.

2.Does 304L powder require a controlled atmosphere?

Not necessarily, but storage in sealed containers with inert gas prevents oxidation and contamination.

3.What particle size is best for AM?

15-45 microns is typical for powder bed fusion AM to provide good flow and high resolution. Larger sizes from 45-100 microns are also used.

4.Is 304L used for metal 3D printing?

Yes, 304L is widely used for powder bed and directed energy deposition 3D printing to make prototypes, tooling, and end-use parts.

5.What causes powder to oxidize and lose reusability?

Exposure to air/moisture causes surface oxidation. Proper sealed storage with desiccant and oxygen absorbers prevents this.

6.Does 304L require solution annealing after laser sintering?

Yes, stress relieving at 1050-1150°C and rapid cooling helps restore ductility and toughnessafterthe rapid solidification.

7.What finish can be expected on as-sintered MIM 304L parts?

Around Ra 3-6 microns initially. Polishing and etching can achieve under 0.5 micron. Plating also gives a smooth finish.

8.What tolerance can be achieved with 304L MIM parts?±0.1-0.3% is typical but tolerances under ±0.1% are possible for high precision components.

9.Why is 304L preferred over 304 stainless steel?

The lower carbon gives 304L better corrosion resistance, especially for weldments, reducing sensitization. It has become the dominant grade.

10.What is the cost premium for 304L vs. 304 powder?

Typically 10-30% higher cost for 304L due to the lower carbon composition. Price also depends on quantities ordered.

316L Powder

316L Description:

316L 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.

316L Powder Related Information :

Storage Conditions:

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

Please contact us for customization and price inquiry

Email: contact@nanochemazone.com

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

Best Stainless Steel 316L Powder for 3D Printing

Stainless steel 316L powder is a versatile and widely used material in various industries. Its unique properties make it suitable for applications ranging from 3D printing to biomedical implants. In this article, we will explore the characteristics, uses, manufacturing process, and advantages of stainless steel 316L powder.

Overview of Stainless Steel 316L Powder

316L stainless steel belongs to the austenitic class of stainless steels. The addition of 2-3% molybdenum along with nickel and chromium imparts excellent pitting and crevice corrosion resistance in harsh environments. The ‘L’ denotes lower carbon content to avoid carbide precipitation during welding.

Key characteristics of 316L powder include:

Excellent corrosion resistance in harsh environments

High oxidation and sulfidation resistance at elevated temperatures

Very good weldability and formability

Non-magnetic austenitic structure

Available in range of particle size distributions

316L powder is suitable for applications requiring excellent corrosion resistance like chemical processing, pharmaceutical, food and beverage, marine equipment and biomedical implants. This article provides a detailed overview of 316L powder.

Chemical Composition of 316L Powder

Properties of 316L Powder

316L offers excellent corrosion resistance combined with good formability and weldability. The austenitic structure provides good toughness and ductility.

Production Method for 316L Powder

Common production methods for 316L powder include:

Gas Atomization – Inert gas jets disintegrate molten 316L alloy stream into fine spherical powders with controlled size distribution.

Water Atomization – High pressure water jet impacts and disintegrates molten metal to produce fine irregular powder particles.

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

Gas atomization allows excellent control over particle characteristics like size, shape, oxygen pickup and microstructure.

Applications of 316L Powder

Typical applications of 316L powder include:

Additive Manufacturing – Powder bed fusion, binder jetting processes use 316L powder for chemical, marine, biomedical parts.

Metal Injection Molding – To manufacture small, complex components needing corrosion resistance.

Thermal Spray Coatings – Wire arc spray deposition to produce protective coatings in harsh environments.

Welding Consumables – Used as filler material for joining 316L components providing excellent weld strength.

Chemical Processing – Powder metallurgy vessels, trays, baskets used in chemical and pharmaceutical industries.

Specifications of 316L Powder

316L powder is available under different size ranges, shapes and purity levels:

Particle Size: From 10-45 μm for AM methods, up to 150 μm for thermal spray processes.

Morphology: Spherical, irregular and blended particle shapes. Smooth spherical powder provides optimal flow.

Purity: From commercial to high purity (99.9%) tailored to application requirements.

Oxygen Content: Levels maintained at 100-1000 ppm for most applications.

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

Storage and Handling of 316L Powder

316L powder should be handled with care to:

Prevent contact with moisture, acids etc. leading to corrosion

Avoid fine powder accumulation to minimize risk of dust explosions

Use proper ventilation, PPE when handling fine powders

Follow recommended practices from supplier SDS

Store sealed containers in a dry, inert atmosphere

Proper protective measures must be taken when handling reactive alloy powders like 316L.

Inspection and Testing of 316L Powder

Key quality control tests performed on 316L powder:

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 imaging

Powder flow rate measured as per ASTM B213 standard

Density determination by helium pycnometry

Impurity testing by ICP-MS

Microstructure characterization by X-ray diffraction

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

Comparison Between 316L and 304L Stainless Steel Powders

316L and 304L stainless steel powders compared:

316L offers substantially better corrosion resistance whereas 304L is more economical for less demanding applications.

316L Powder FAQs

Q: How is 316L stainless steel powder produced?

A: 316L powder is commercially produced using gas atomization, water atomization and mechanical alloying followed by sintering. Gas atomization offers the best control of powder characteristics.

Q: What are the main applications of 316L powder?

A: Key applications for 316L powder include additive manufacturing, metal injection molding, thermal spray coatings, and powder metallurgy parts for chemical, marine, pharmaceutical and food industries needing excellent corrosion resistance.

Q: What is the recommended 316L powder size for binder jetting AM?

A: For binder jetting process, the typical 316L powder size range is 20-45 microns with spherical morphology for optimal powder bed density and binder infiltration.

Q: Does 316L powder require special handling precautions?

A: Yes, 316L is a reactive alloy powder and should be handled carefully under controlled humidity and inert atmosphere using proper grounding, ventilation and PPE.

Q: Where can I buy 316L powder suitable for biomedical implants?

A: High purity, gas atomized 316L powder meeting biomedical specifications can be purchased from leading manufacturer.

H13 Alloy Steel Powder

H13 Alloy Steel Description:

H13 Alloy Steel 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.

H13 Alloy Steel Powder Related Information :

Storage Conditions:

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

Please contact us for customization and price inquiry

Email: contact@nanochemazone.com

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

H13 Alloy Steel Powder For 3D Printing

Our nitrogen atomized H13 alloy steel powder has good hardenability, thermal strength, wear resistance and high impact toughness, thermal fatigue, widely used in the manufacture of hot work molds.Wear is one of the main failure modes of H13 steel hot-working die. Improving the surface wear resistance of H13 steel is an effective way to improve the life of die.

H13 alloy steel powder is a highly versatile and widely used material in various industrial applications, particularly in the field of metal additive manufacturing (AM). This chromium-molybdenum hot-work tool steel is renowned for its exceptional properties, such as high hardness, excellent wear resistance, and good toughness, even at elevated temperatures.

Typical chemical composition of H13 alloy steel powder

Properties and Characteristics

Typical properties of H13 alloy steel

H13 alloy steel powder exhibits excellent dimensional stability, creep resistance, and thermal fatigue resistance, making it an ideal choice for various industrial applications. Its high hardness and wear resistance make it suitable for producing tools, dies, and components subjected to severe mechanical and thermal stresses.

Applications

Common applications of H13 alloy steel powder

Specifications, Sizes, and Grades

Common specifications and standards for H13 alloy steel

H13 alloy steel powder is typically available in various particle size distributions, ranging from coarse to fine powders, to meet the requirements of different additive manufacturing processes, such as laser powder bed fusion (LPBF), electron beam powder bed fusion (EBPBF), and binder jetting.

FAQs

Q1: What makes H13 alloy steel powder suitable for additive manufacturing?

A1: H13 alloy steel powder’s excellent mechanical properties, thermal resistance, and dimensional stability make it an ideal material for producing high-performance components via additive manufacturing processes like laser powder bed fusion and electron beam powder bed fusion.

Q2: Can H13 alloy steel powder be used for other manufacturing processes besides additive manufacturing?

A2: Yes, H13 alloy steel powder can also be used in conventional manufacturing processes like powder metallurgy, hot isostatic pressing (HIP), and metal injection molding (MIM).

Q3: What are the typical post-processing steps for components made from H13 alloy steel powder?

A3: Common post-processing steps for H13 alloy steel components include heat treatment, hot isostatic pressing (HIP), machining, and surface finishing operations like grinding, polishing, or coating.

Q4: How does the particle size distribution of H13 alloy steel powder affect its performance in additive manufacturing?

A4: The particle size distribution plays a crucial role in the flowability, packing density, and processability of the powder during additive manufacturing. Finer powders generally provide better resolution and surface finish, while coarser powders may exhibit better mechanical properties.

Q5: Are there any specific safety precautions to consider when handling H13 alloy steel powder? 

A5: Yes, proper safety measures should be taken when handling H13 alloy steel powder, including the use of personal protective equipment (PPE), adequate ventilation, and proper disposal of waste materials. Additionally, precautions should be taken to prevent static discharge and dust explosions.

S2 Powder

S2 Description:

M2 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.

S2 Powder Related Information :

Storage Conditions:

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

Please contact us for customization and price inquiry

Email: contact@nanochemazone.com

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

S2 Powder

S2 powder is a high speed tool steel powder ideal for making cutting tools requiring high hardness, strength, and wear resistance at elevated temperatures. It contains tungsten, molybdenum, vanadium, and additional alloys providing excellent hot hardness and thermal fatigue resistance.

Overview of S2 Powder

S2 powder is a high speed tool steel powder ideal for making cutting tools requiring high hardness, strength, and wear resistance at elevated temperatures. It contains tungsten, molybdenum, vanadium, and additional alloys providing excellent hot hardness and thermal fatigue resistance.

Key properties and advantages of S2 powder:

S2 Powder Properties and Characteristics

S2 powder produces cutting tools, dies, and machine components with extended service life under continuous high temperature and intermittent shock loading conditions.

S2 Powder Composition

Iron provides the ferritic matrix

Carbon, tungsten, and chromium form hard carbides

Vanadium and molybdenum enhance wear resistance

Manganese and silicon facilitate machining

S2 Powder Physical Properties

High density enables miniaturized components

Retains hardness and strength at elevated temperatures

Becomes paramagnetic above Curie point

Can withstand prolonged service up to 600°C

Good thermal conductivity reduces thermal expansion stresses

These properties provide a balanced combination of hot hardness and thermal shock resistance required in high speed machining applications.

S2 Powder Mechanical Properties

Exceptional hardness when heat treated

High strength with reasonable ductility

Very good compressive and transverse rupture strength

Excellent red hardness at elevated temperatures

Strength depends on heat treatment process

S2 powder produces cutting tools and dies with hardness, strength, and thermal properties needed to machine challenging materials at high speeds and temperatures.

S2 Powder Applications

Some specific product uses:

Cutting inserts, indexable tooling

Broaches, reamers, taps, threading dies

Metal slitting saws and industrial knives

Extrusion tooling and drawing dies

Cold heading and forging dies

Gauges, wear-resistant components

S2’s unique properties make it the top choice for reliable cutting tools and components used in demanding metalworking applications.

S2 Powder Specifications

Key specifications for S2 high speed steel powder:

S2 Powder Standards

These define:

Chemical composition limits of S2

Required mechanical properties in heat treated condition

Approved production methods like gas atomization

Compliance testing protocols

Quality assurance requirements

Proper packaging and identification

Powder produced to these standards ensures suitability for high wear resistance tooling applications under thermal fatigue conditions.

S2 Powder Particle Sizes

Finer particles allow greater densification during sintering

Coarser particles improve powder flow into die cavities

Size is selected based on final part properties needed

Both gas and water atomized particles used

Controlling size distribution optimizes pressing behavior, sintered density, and final component performance.

S2 Powder Apparent Density

Spherical powder shape provides high apparent density

Irregular powder has lower density around 45-50%

Higher apparent density improves die filling and part quality

Allows complex tool geometry compaction

Higher apparent density leads to better component production rate and performance.

S2 Powder Production

Gas atomization provides spherical powder shape

Vacuum melting eliminates gaseous impurities

Multiple remelting improves uniformity

Post-processing allows particle size customization

Fully automated processes combined with strict quality control ensures reliable and consistent S2 powder properties critical for tooling performance.

S2 Powder Handling and Storage

Storage Recommendations

Store sealed containers away from moisture or contamination

Maintain storage temperatures below 27°C

Limit exposure to oxidizing acids and chlorine compounds

Proper precautions during handling and storage help preserve purity and prevent safety hazards.

S2 Powder Testing

Testing ensures the powder meets the required chemical composition, physical characteristics, particle size distribution, morphology, density, and flow rate specifications.

S2 Powder Pros and Cons

Advantages of S2 Powder

Exceptional hot hardness and red hardness

High strength and wear resistance at elevated temperatures

Good toughness and thermal shock resistance

Resists softening and shape changes up to 600°C

Dimensional stability under thermal cycling

Cost-effective compared to exotic PM tool steel grades

Limitations of S2 Powder

Moderate corrosion resistance without surface treatment

Limited cold formability and shear strength

Requires careful heat treatment by experienced providers

Not weldable using conventional fusion welding

Large cross-sections can experience embrittlement

Contains expensive alloying elements

Comparison With H13 Tool Steel Powder

S2 vs H13 Tool Steel Powder

S2 has much greater hot hardness and thermal shock resistance

H13 provides better cold strength and toughness

S2 is more expensive due to higher alloy content

S2 preferred for high speed machining applications

H13 suited for cold and warm pressing tooling

S2 Powder FAQs

Q: What are the main applications of S2 tool steel powder?

A: Main applications include cutting tools like drills, mills, inserts, taps, dies, saws, planning tools, as well as extrusion tooling, forging dies, gauges, and components needing hot hardness and thermal shock resistance.

Q: What heat treatment is used for S2 tool steel powder?

A: S2 tool steel is typically heat treated by austenitizing between 1150-1200°C followed by air, oil, or polymer quenching, then tempering between 540-650°C to achieve hardness between 62-64 HRC.

Q: How does tungsten improve the properties of S2 steel?

A: Tungsten forms hard tungsten-iron-carbon complexes that provide exceptional hot hardness, strength and wear resistance at elevated temperatures needed for high speed machining applications.

Q: What safety precautions should be used when working with S2 powder?

A: Proper ventilation, protective gear, inert atmosphere, grounding, avoiding ignition sources, using non-sparking tools, and safe storage away from contamination or moisture.