CARBIDE & DIAMOND TOOL MATRIX POWDERSTECHNICAL PRODUCT DATA

FeCuCo Pre-Alloyed Matrix Powder for Diamond Tools

Pre-alloyed FeCuCo bond powder for diamond saw segments and core drills. Ratios from Fe70Cu20Co10 to Fe50Cu20Co30, custom blends, sintered data per lot. No WC, no licensing.

Standard ratios: Fe70Cu20Co10, Fe60Cu30Co10, Fe50Cu20Co30, custom
Sintering temperature: 750-900 °C grade dependent
Particle size: -200/-325 mesh, FSSS 5-15 µm
Sintered hardness: 85-105 HRB tunable by ratio

FeCuCo Pre-Alloyed Matrix Powder for Diamond Tools metal powder product sample

QUICK ANSWER

Performance Defined by Material and Process.

FeCuCo pre-alloyed matrix powder is a fully alloyed iron-copper-cobalt powder (typical ratios like 70/20/10 or 60/30/10) engineered as the bond matrix for diamond saw segments, core drills, and grinding tools. Pre-alloying delivers homogeneous composition in every particle — sintering faster and more uniformly than element-blended bonds, with predictable diamond retention and wear rate matched to the stone or concrete being cut.

Diamond tool bonds were traditionally mixed from elemental iron, copper, cobalt, and tin powders — a process sensitive to mixing quality and segregation. Pre-alloyed powder eliminates mixing as a variable: every particle carries the full alloy, so the pressed segment sinters uniformly, reaches density at lower temperature (protecting the diamond grit), and wears at a designed rate that continuously exposes fresh diamond. The toolmaker's entire craft becomes ratio selection — hard cobalt-rich bonds for soft abrasive stone, softer iron-rich bonds for hard granite — and the powder supplier's job is delivering those ratios with certified consistency.

MATERIAL DATA

Chemistry and Technical Performance.

Lot-level controls focus on the chemistry, particle characteristics, and process values that influence manufacturing consistency and finished-part performance.

Chemical Composition

TYPICAL

Element	Content	Performance Role
Iron (Fe)	50-80 wt% (ratio dependent)	Bond backbone — strength, toughness, low cost
Copper (Cu)	10-35 wt%	Lowers sintering temperature, improves diamond wetting and thermal conductivity
Cobalt (Co)	5-30 wt%	Diamond retention — grips grit chemically and mechanically
Tin (Sn)	0-8 wt% (optional)	Further lowers sintering temperature in fast-sintering grades
Others (WC-free additives)	0-5 wt%	Wear-rate tuning additions — tungsten-free by design

Technical Specifications

BASE GRADE

Standard ratios: Fe70Cu20Co10, Fe60Cu30Co10, Fe50Cu20Co30, custom
Sintering temperature: 750-900 °C grade dependent
Particle size: -200/-325 mesh, FSSS 5-15 µm
Sintered hardness: 85-105 HRB tunable by ratio
Form: Water/gas atomized fully pre-alloyed particles
Diamond compatibility: Standard saw-grade synthetic diamond grit

Final limits can be aligned with the agreed purchase specification.

APPLICATIONS

Developed for Demanding Industrial Applications.

Stone processing is the primary market

Stone processing is the primary market: granite and marble saw blades, gang saw segments, core drill bits, and profiling wheels use FeCuCo bonds selected by stone hardness — the bond must erode at exactly the rate diamonds dull, exposing fresh grit without shedding it early. Segment producers hot-press or free-sinter the powder with diamond grit, and they buy matrix powder on sintered density, hardness per ratio, and lot consistency — a drifted batch changes segment wear behavior visibly in the field and triggers claims. Construction (concrete cutting and drilling) follows the same logic with different ratio preferences.

The strategic context favors this product family

The strategic context favors this product family: tungsten carbide and cobalt metal both carry supply friction (WC under Chinese licensing since 2025), and iron-based pre-alloyed bonds deliver 80-90% of cobalt-bond performance at a fraction of cost — the industry's decade-long substitution trend. Tool manufacturers in price-sensitive stone and construction markets have largely converted, and premium lines blend pre-alloyed FeCuCo with our submicron cobalt to balance performance and cost.

FeCuCo Pre-Alloyed Matrix Powder for Diamond Tools industrial application detail

CARBIDE & DIAMOND TOOL MATRIX POWDERS

CUSTOM SUPPLY

A Supply Specification Built Around Your Process.

We supply FeCuCo in the standard ratio range plus fully custom compositions, water-atomized for pressability or gas-atomized for free-sintering, with certified chemistry, sintered density, and hardness data per lot. Bond-design support (ratio selection for your stone mix), WC-free formulation as standard, and trial quantities for segment qualification are available. Tungsten-free by design — ships without any licensing exposure.

Bond-design support (ratio selection for your stone mix), WC-free formulation as standard, and trial quantities for segment qualification are available.

Tungsten-free by design — ships without any licensing exposure.

MATERIAL COMPARISON

Compare Materials Against the Production Requirement.

Pre-Alloyed vs Elemental Blended Bonds

Comparison Point	This Product	Elemental Blend
Composition homogeneity	Every particle fully alloyed	Mixing-dependent — segregation risk
Sintering uniformity	Uniform — no local soft/hard spots	Variable with mix quality
Sintering temperature	Lower — alloyed melts uniformly	Higher, wider window needed
Process sensitivity	Low — forgiving	High — mixing time critical
Cost	Slightly higher	Lower
Best use	Quality segment production	In-house mixing expertise, lowest cost

FeCuCo vs Full Cobalt Bonds

Comparison Point	This Product	Pure Cobalt Bond
Diamond retention	Good to very good	Excellent — the benchmark
Bond cost	30-60% lower	High — cobalt price exposed
Sintering temperature	750-900 °C	850-950 °C
Wear-rate tunability	Wide — ratio dial	Narrow — additives only
Typical market	Stone, construction — volume	Premium stone, specialty drilling
Hybrid option	Blend with Co for balance	Pure Co for maximum grip

TECHNICAL FAQ

Technical Questions About This Grade.

Need a different chemistry, particle range, or processing route? Our material team can review the requirement and supply window.

How do I choose the ratio for granite vs concrete?

Hard stone (granite) needs a softer, faster-eroding bond — higher copper, lower cobalt (Fe70Cu20Co10 class). Abrasive soft materials (green concrete, asphalt) need a harder, wear-resistant bond — higher cobalt (Fe50Cu20Co30 class). We help you match ratios to your material mix.

Can I blend your pre-alloyed powder with my own additives?

Yes — that is standard practice: customers add tin, bronze, or our submicron cobalt to fine-tune. The pre-alloyed base guarantees the FeCuCo homogeneity; your additives tune the behavior.

What sintering cycle do your grades need?

Hot-press grades sinter at 750-850 °C under pressure in minutes; free-sintering grades run 850-900 °C. Each lot ships with a recommended cycle and achieved density/hardness data.

Does the powder contain tungsten or controlled materials?

No — our matrix powders are tungsten-free by design, and none of the constituents fall under export licensing. Your finished segments also avoid the licensing questions that WC-containing bonds can raise.

What lot-to-lot consistency can you guarantee?

Chemistry within tight ratio windows, certified per lot; sintered density and hardness data on standardized test pieces accompany every shipment. Retained samples kept for traceability.

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