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 Stainless Steel Powder

316L Stainless Steel Description:

316L 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.

316L 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.

316L Stainless Steel Powder

316L Stainless Steel Powder(ss316L) 316L is a stainless steel grade, which is classified according to the metallographic structure and belongs to austenitic stainless steel.

Overview of 316L Stainless Steel Powder

316L is an austenitic stainless steel powder widely used in additive manufacturing to produce corrosion resistant parts with good mechanical properties and weldability. This article provides a detailed guide to 316L powder.

Key aspects covered include composition, properties, AM process parameters, applications, specifications, suppliers, handling, inspection methods, comparisons to alternatives, pros and cons, and FAQs. Tables are used to present information in an easy-to-reference format.

Composition of 316L Stainless Steel Powder

The composition of 316L stainless steel powder is:

The high chromium and nickel content provide corrosion resistance while the low carbon minimizes carbide precipitation.

Properties of 316L Stainless Steel Powder

The properties make 316L suitable for harsh, corrosive environments.

AM Process Parameters for 316L Powder

Typical parameters for printing 316L powder include:

Parameters tailored for density, microstructure, production rate and post-processing needs.

Applications of 3D Printed 316L Parts

AM 316L components are used in:

Benefits versus wrought 316L include complex geometries, reduced part count, and accelerated product development.

Specifications of 316L Powder for AM

316L powder must meet strict specifications:

Handling and Storage of 316L Powder

As a reactive material, careful 316L powder handling is essential:

Store sealed containers away from moisture, acids, ignition sources

Use inert gas padding during transportation and storage

Ground equipment to dissipate static charges

Avoid dust accumulation through extraction and ventilation

Follow safety data sheet precautions

Proper techniques ensure optimal powder condition.

Inspection and Testing of 316L Powder

Testing per ASTM standards verifies powder quality and batch consistency.

Comparing 316L to Alternative Alloy Powders

316L compares to other alloys as:

With its balanced properties, 316L is very versatile for small to medium sized AM components needing corrosion resistance.

Pros and Cons of 316L Powder for AM

316L provides versatile performance at moderate cost, albeit with controlled processing requirements.

Frequently Asked Questions about 316L Stainless Steel Powder

Q: What particle size range works best for printing 316L alloy?

A: A typical range is 15-45 microns. It provides good powder flowability combined with high resolution and density.

Q: What post-processing methods are used on 316L AM parts?

A: Hot isostatic pressing, heat treatment, surface machining, and electropolishing are common methods for achieving full densification and surface finish.

Q: Which metal 3D printing process is ideal for 316L alloy?

A: All major powder bed fusion processes including selective laser melting (SLM), direct metal laser sintering (DMLS) and electron beam melting (EBM) are regularly used.

Q: What industries use additively manufactured 316L components?

A: Aerospace, automotive, biomedical, marine hardware, chemical processing, and oil and gas industries benefit from 3D printed 316L parts.

Q: Does 316L require support structures during 3D printing?

A: Yes, support structures are essential on overhangs and bridged sections to prevent deformation and allow easy removal after printing.

Q: What defects can occur when printing 316L powder?

A: Potential defects are porosity, cracking, distortion, lack of fusion, and surface roughness. Most can be prevented with optimized parameters.

Q: What is the key difference between 316 and 316L alloys?

A: 316L has lower carbon content (0.03% max) which improves corrosion resistance and eliminates harmful carbide precipitation during welding.

Q: How are the properties of printed 316L compared to wrought alloy?

A: With optimized parameters, AM 316L components can achieve mechanical properties on par or exceeding conventionally processed wrought counterparts.

Q: What density can be expected with 3D printed 316L parts?

A: Density above 99% is achievable for 316L with ideal parameters tailored for the alloy, matching wrought material properties.

Q: What finishing is typically applied to 316L AM parts?

A: Abrasive flow machining, CNC machining, and electropolishing are common finishing processes for removing surface roughness and achieving the required tolerances.

AerMet100 Stainless Steel Powder

AerMet100 Stainless Steel Description:

AerMet100 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.

AerMet100 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.

AerMet100 Stainless Steel Powder

AerMet100 stainless steel powder is an advanced high strength and corrosion resistant alloy powder designed for additive manufacturing applications. With its unique composition and properties, AerMet100 enables production of high performance parts using 3D printing processes like laser powder bed fusion and binder jetting.

This article provides a comprehensive overview of AerMet100 stainless steel powder covering its composition, properties, applications, specifications, pricing, handling, inspection methods and other technical details

AerMet100 stainless steel powder is a high-performance alloy powder designed for additive manufacturing applications requiring high strength and fatigue resistance. Some key features of this material include:

High strength and hardness – AerMet100 has excellent strength with tensile strength over 200 ksi and hardness ranging from 30-36 HRC.

Good ductility – Despite the high strength, AerMet100 still retains decent ductility and impact resistance. Elongation values are over 10%.

Excellent fatigue resistance – The fatigue limit of AerMet100 is very high at around 50% of tensile strength. This allows durable components exposed to cyclic stresses.

Resistance to creep – AerMet100 resists deformation under load at high temperatures up to 700°C making it suitable for elevated temperature service.

Corrosion resistance – The stainless steel composition provides corrosion and oxidation resistance for use in harsh environments.

Weldability – The low carbon content allows for good weldability using standard fusion welding methods.

Cost-effectiveness – AerMet100 is more affordable than other exotic alloys with similar properties.

This exceptional balance of properties makes AerMet100 suitable for demanding applications in aerospace, oil & gas, automotive, and industrial sectors. Parts made from AerMet100 powder demonstrate high strength-to-weight ratio, durability, and reliability under operating loads.

AerMet100 Stainless Steel Powder Composition

AerMet100 has a martensitic stainless steel composition with additions of cobalt, nickel, and molybdenum for strength and hardness. The nominal composition is given below:

The key alloying elements and their effects are:

Chromium – Provides corrosion and oxidation resistance

Nickel – Increases toughness and ductility

Cobalt – Solid solution strengthener, increases strength

Molybdenum – Solid solution strengthener, increases strength and creep resistance

Manganese & Silicon – Deoxidizers to improve powder manufacturability

Carbon – Kept low for better weldability

The combination of these elements gives AerMet100 stainless steel its unique set of properties.

AerMet100 Stainless Steel Powder Properties

AerMet100 exhibits the following physical and mechanical properties in as-built AM and heat treated conditions:

The properties make AerMet100 suitable for high-strength structural components, aerospace fasteners, downhole tools, valves and pumps, and other critical parts where fatigue resistance is paramount.

AerMet100 Stainless Steel Powder Applications

The unique properties of AerMet100 make it an excellent choice for the following applications:

Aerospace

Structural brackets, braces, fuselage components

Landing gear parts, wing components, empennage

Engine mounts, exhaust components

Turbine blades, impellers, compressor parts

High-strength fasteners, bolts, nuts, rivets

Oil & Gas

Downhole drill tools and components

Wellhead parts, valves, pumps

Pressure vessels, pipe fittings

Subsea/offshore structural parts

Automotive

Power generation components

Drive systems parts like gears, shafts

Structural braces, chassis components

High-performance racing components

Industrial

Robotics parts subject to wear and impact

Dies, molds, tooling

Fluid handling parts like valves and pumps

Other high-cycle loaded components

The excellent fatigue strength of AerMet100 makes it an ideal replacement for components traditionally made from titanium or nickel alloys. The high hardness provides good wear resistance as well.

AerMet100 Stainless Steel Powder Specifications

AerMet100 powder products meet the following specifications:

Typical size distributions for AM processing are:

Chemical composition must conform to the permissible ranges for elements like Cr, Ni, Co, Mo, C, etc. as outlined in AMS 7245 specification for AerMet100 alloy.

Mechanical properties should meet or exceed the minimum values for hardness, tensile strength, yield strength, elongation, and reduction of area stated in AMS 7245.

Non-destructive testing like dye penetrant or magnetic particle inspection should show no critical flaws or defects. Powder should have good flowability and exhibit no clumping.

Storage and Handling

To maintain quality of AerMet100 powder for AM use, the following storage and handling guidelines apply:

Store sealed containers in a cool, dry place away from moisture and sources of contamination

Avoid exposing powder to high humidity (>60% RH) for prolonged time

Allow powder to equilibrate to room temperature prior to unsealing container to prevent condensation

Pour and transfer powder in inert environments with low oxygen content if possible

Use powder handling equipment and accessories made from compatible materials to prevent contamination

Limit reuse of powder to 2-3 cycles maximum to prevent degradation of properties

Conduct testing of used powder to ensure it still meets all specifications for reuse

Proper storage and careful handling is key to preventing powder oxidation, contamination, or changes in flowability.

Safety Information

Wear PPE when handling powder – gloves, respirator mask, goggles

Avoid skin contact to prevent possible allergic reactions

Prevent inhalation of fine powders over long periods

Ensure adequate ventilation and dust collection when processing

Use non-sparking tools to dispense and handle powder

Inert gas blanketing is recommended for powder handling

Follow all applicable safety data sheet (SDS) guidelines

Dispose according to local regulations and ensure containment

AerMet100 alloy powders are generally not hazardous materials but following basic safety practices during storage, handling, and processing is advised.

Inspection and Testing

To ensure AerMet100 powder meets specifications, the following inspection and testing procedures can be used:

Mechanical testing of printed specimens per AMS 7245 validates final part properties meet requirements. Testing methods include hardness, tensile, charpy impact, high cycle fatigue, low cycle fatigue, creep rupture, fracture toughness, corrosion, etc.

AerMet100 Stainless Steel Powder Comparison to Similar Materials

AerMet100 compares to other high-strength martensitic stainless steels as follows:

Advantages of AerMet100:

Higher strength than 17-4PH and 316L

Better ductility than Custom 465 for higher impact resistance

More weldable than precipitation hardening alloys

Lower cost than Inconel 718

Limitations of AerMet100:

Lower ductility/fracture toughness than austenitic 316L

Inferior weldability compared to 316L

Higher cost than 17-4PH or 316L

Lower strength than Custom 465 in peak aged condition

Overall, AerMet100 provides an optimal combination of strength, ductility, weldability, and cost for high-performance parts made by AM processes.

FAQ

Q: What are the key benefits of AerMet100 alloy?

A: The main benefits of AerMet100 are its high strength and hardness coupled with good ductility, excellent fatigue resistance, creep resistance, corrosion resistance, and moderate cost. This makes it well suited for critical AM applications.

Q: What heat treatment is used for AerMet100?

A: A typical heat treatment is 1-2 hours solutionizing at 1040-1080°C followed by air or furnace cooling to room temperature, then age hardening at 480°C for 4 hours to achieve optimal strength and hardness.

Q: What welding methods can be used to join AerMet100 parts?

A: Fusion welding methods like GTAW, GMAW, and PAW are recommended for AerMet100 to avoid cracking and minimize distortion. Low heat input and peening of welds is also suggested. Brazing can also produce good joints.

Q: How does AerMet100 compare to maraging steels for AM?

A: AerMet100 has higher ductility but slightly lower strength than maraging steels like 18Ni300 or 18Ni350. Maraging steels have poor weldability. AerMet100 is a good lower-cost alternative to maraging.

Q: Can AerMet100 be machined after AM processing?

A: Yes, AerMet100 can be machined after AM but care must be taken to account for work hardening effects. Low cutting forces, carbide tooling, and adequate coolant is recommended. Annealing may be required after extensive machining.

Q: What particle size range of AerMet100 powder is optimal for AM?

A: The recommended particle size range for AM is 15-45 μm. Finer powders improve resolution but can negatively impact flowability. Coarser powders above 53 μm can cause print defects. The typical sweet spot is 25-35 μm

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.