Electrolytic Copper Powder Grades A118–A210

Grade	Category	Purity	Apparent Density (g/cm³)	Hall Flow	Surface Area	Green Strength	Primary Use
A118	Ultra-Fine	99.80% min	0.6 – 0.9	Non-flowing	Maximum	Excellent	Catalysts, Inks, High-perf Friction
A123	Fine	99.80% min	0.8 – 1.0	Non-flowing	Very High	Excellent	Friction, PM, Brazing, Diamond Tools
A128	Standard Fine	99.80% min	1.0 – 1.2	Non-flowing	High	Very Good	General PM, Diamond Tools, Contacts
A135	Medium	99.80% min	1.2 – 1.6	36–40 sec/50g	Medium	Good	Automated PM, Bearings, Premix
A200	Coarse	99.80% min	2.8 – 3.0	30–33 sec/50g	Lower	Good	Heavy-duty, High-volume Automated
A210	Extra Coarse	99.80% min	3.6 – 4.5	25–30 sec/50g	Lowest	Fair	Railway Brakes, Max Flow Production

A118

Ultra-Fine Dendritic

Primary Applications

High-performance friction materials (max surface area)
Specialty catalysts (hydrogenation, C-C coupling)
Advanced composites & ultra-fine reinforcement
Diamond tool matrices (fine diamond grits 400–800 mesh)
High-end conductive pastes and inks
Carbon brushes — electrographitic & metal-graphite grades (10–25% Cu)

Best Choice When: Maximum specific surface area is critical, ultra-fine particles required, chemical/catalytic application, carbon brush formulations needing fine Cu-graphite bonding, or premium product performance justifies cost.

Technical Specifications

Parameter	Specification
Purity (Cu min)	99.80%
Apparent Density	0.6 – 0.9 g/cm³
Hall Flow Rate	Non-flowing (NF)
Morphology	Highly Dendritic
Moisture Content	< 0.2%
Oxygen Content	< 0.3% (typical)

Sieve Analysis (ASTM Mesh / IS 460 / ASTM B214)

Mesh Size	Tyler Equiv.	Aperture (µm)	% Retained
-60 / +100	-60 / +100	250–150	Balance
-100 / +200	-100 / +200	150–75	95 – 99%
-200 / +325	-200 / +325	75–45	Trace
-325 (through)	-325	<45	Trace

Key Technical Advantages

Maximum specific surface area in our product line
Superior green strength for challenging geometries
Excellent particle interlocking at low compaction pressures
Enhanced reactivity for chemical and catalytic applications

⚠️ Handling Note: Non-flowing — requires vibration-assisted die filling. Dust control essential. Store in sealed containers with desiccant. Nitrogen blanketing recommended for long-term storage.

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A123

Fine Dendritic

Primary Applications

Friction materials — brake pads & clutch plates
Powder metallurgy — bronze bearings (90Cu/10Sn)
Welding & copper-phosphorus brazing pastes
Conductive pastes and inks
Diamond tool matrices (general purpose)
Carbon brushes — metal-graphite grades (25–60% Cu) for motors & generators

Recommended For: First-time customers evaluating electrolytic copper powder. Standard friction material and carbon brush formulations. General powder metallurgy applications. Cost-effective solution for most applications.

Technical Specifications

Parameter	Specification
Purity (Cu min)	99.80%
Apparent Density	0.8 – 1.0 g/cm³
Hall Flow Rate	Non-flowing (NF)
Morphology	Highly Dendritic
Moisture Content	< 0.2%
Oxygen Content	< 0.3% (typical)

Sieve Analysis (ASTM Mesh / IS 460 / ASTM B214)

Mesh Size	Tyler Equiv.	Aperture (µm)	% Retained
-60 / +100	-60 / +100	250–150	Trace
-100 / +200	-100 / +200	150–75	Balance
-200 / +325	-200 / +325	75–45	85 – 99%
-325 (through)	-325	<45	Trace

Typical Usage Scenarios

Friction Materials: 5–15% in automotive brake pads, 10–25% in clutch plates
Powder Metallurgy: Bronze bearing formulations (90Cu/10Sn)
Welding: Copper-phosphorus brazing paste components
Diamond Tools: Medium diamond applications

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A128

Standard Fine Dendritic

Primary Applications

General friction materials (automotive brake pads)
Powder metallurgy structural parts
Diamond tool bonding matrices (stone cutting)
Electrical contact materials
Standard welding applications

Best Choice When: Standard application requirements, cost-effectiveness is important, proven formulation needs reliable supply, no extreme property requirements.

Technical Specifications

Parameter	Specification
Purity (Cu min)	99.80%
Apparent Density	1.0 – 1.2 g/cm³
Hall Flow Rate	Non-flowing (NF)
Morphology	Dendritic
Moisture Content	< 0.2%
Oxygen Content	< 0.3% (typical)

Sieve Analysis (ASTM Mesh / IS 460 / ASTM B214)

Mesh Size	Tyler Equiv.	Aperture (µm)	% Retained
-60 / +100	-60 / +100	250–150	Trace
-100 / +200	-100 / +200	150–75	Balance
-200 / +325	-200 / +325	75–45	80 – 98%
-325 (through)	-325	<45	Trace

Typical Usage Scenarios

Friction Materials: 8–15% in general automotive applications
Powder Metallurgy: Iron-copper alloy components
Diamond Tools: Stone cutting saw segments
Electrical: Sintered electrical contacts

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A135

Medium Dendritic

Primary Applications

Powder metallurgy structural parts (high-volume)
Bronze powder premix formulations
Friction materials for medium-load applications
Sintered bearings and bushings
Automated die filling operations
Carbon brushes — copper-graphite grades (40–80% Cu) for slip rings & high-current DC machines

Recommended For: High-volume production environments, automated pressing operations, applications where flow is critical, carbon brush manufacturers needing free-flowing Cu for automated pressing, companies transitioning from atomized to electrolytic powder.

Technical Specifications

Parameter	Specification
Purity (Cu min)	99.80%
Apparent Density	1.2 – 1.6 g/cm³
Hall Flow Rate	36 – 40 sec/50g
Morphology	Dendritic (moderate branching)
Moisture Content	< 0.2%
Oxygen Content	< 0.3% (typical)

Sieve Analysis (ASTM Mesh / IS 460 / ASTM B214)

Mesh Size	Tyler Equiv.	Aperture (µm)	% Retained
-60 / +100	-60 / +100	250–150	20 – 35%
-100 / +200	-100 / +200	150–75	Balance
-200 / +325	-200 / +325	75–45	40 – 60%
-325 (through)	-325	<45	Trace

Key Technical Advantages

Free-flowing: excellent for automated production lines
Good die filling characteristics without vibration assist
Enhanced dimensional control due to particle size distribution
Reduced handling issues (less dusting)

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A200

Coarse Dendritic

Primary Applications

High-density powder metallurgy parts
Premix formulations requiring excellent flow
Heavy-duty friction materials (truck brake pads)
Diamond tool matrices (coarse applications)
High-volume automated production

Best Choice When: Maximum flowability required, high-volume automated production, dust control is a priority, higher green densities needed, long storage times before use.

Technical Specifications

Parameter	Specification
Purity (Cu min)	99.80%
Apparent Density	2.8 – 3.0 g/cm³
Hall Flow Rate	30 – 33 sec/50g
Morphology	Dendritic (controlled coarseness)
Moisture Content	< 0.2%
Oxygen Content	< 0.3% (typical)

Sieve Analysis (ASTM Mesh / IS 460 / ASTM B214)

Mesh Size	Tyler Equiv.	Aperture (µm)	% Retained
-60 / +100	-60 / +100	250–150	70 – 80%
-100 / +200	-100 / +200	150–75	10 – 15%
-200 / +325	-200 / +325	75–45	Balance
-325 (through)	-325	<45	Trace

Key Technical Advantages

Maximum flowability for fastest die filling
High tap density enables higher green densities
Minimal dusting improves workplace conditions
Reduced oxidation risk during storage and handling

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A210

Extra Coarse Dendritic

Primary Applications

Heavy-duty friction materials (railway brake pads)
High-density structural PM parts
Infiltration operations
Thermal management applications
Maximum-throughput production lines

Recommended For: Railway and heavy-duty brake applications, maximum automation requirements, highest production speeds, long supply chain storage times, workplaces with strict dust control regulations.

Technical Specifications

Parameter	Specification
Purity (Cu min)	99.80%
Apparent Density	3.6 – 4.5 g/cm³
Hall Flow Rate	25 – 30 sec/50g
Morphology	Dendritic (largest particle size)
Moisture Content	< 0.2%
Oxygen Content	< 0.3% (typical)

Sieve Analysis (ASTM Mesh / IS 460 / ASTM B214)

Mesh Size	Tyler Equiv.	Aperture (µm)	% Retained
-60 / +100	-60 / +100	250–150	60 – 80%
-100 / +200	-100 / +200	150–75	10 – 20%
-200 / +325	-200 / +325	75–45	Balance
-325 (through)	-325	<45	Trace

Key Technical Advantages

Absolute maximum flowability for fastest production
Highest achievable green and sintered densities
Virtually dust-free handling
Longest shelf life due to lowest surface area

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Property	Electrolytic Copper (Our Product)	Atomized Copper
Production Method	Electrochemical deposition	Molten metal atomization
Morphology	Dendritic (tree-like branching)	Spherical to irregular
Apparent Density Range	0.6–4.5 g/cm³ (wide range)	2.5–5.5 g/cm³
Specific Surface Area	High (due to dendrites)	Lower (smoother surfaces)
Green Strength	Excellent	Good
Purity	>99.80% (our standard)	>99.0% typical
Compressibility	Excellent	Good
Sintering Behavior	Fast (high surface area)	Moderate
Best For	Friction, PM, Diamond Tools, Catalysts	3D printing, Thermal spray, Filters

Six Precision Grades, Engineered for Performance

Product Comparison Matrix

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Primary Applications

Technical Specifications

Sieve Analysis (ASTM Mesh / IS 460 / ASTM B214)

Key Technical Advantages

Primary Applications

Technical Specifications

Sieve Analysis (ASTM Mesh / IS 460 / ASTM B214)

Typical Usage Scenarios

Primary Applications

Technical Specifications

Sieve Analysis (ASTM Mesh / IS 460 / ASTM B214)

Typical Usage Scenarios

Primary Applications

Technical Specifications

Sieve Analysis (ASTM Mesh / IS 460 / ASTM B214)

Key Technical Advantages

Primary Applications

Technical Specifications

Sieve Analysis (ASTM Mesh / IS 460 / ASTM B214)

Key Technical Advantages

Primary Applications

Technical Specifications

Sieve Analysis (ASTM Mesh / IS 460 / ASTM B214)

Key Technical Advantages

Electrolytic vs. Atomized Copper Powder

Standard Packaging Options

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