Carbides

Carbides Flexible application choices

Depending on the specific material chosen, carbide materials are generally best applied using High Velocity Oxygen Fuel (HVOF) spray and HVAF. When necessary, acceptable carbide coatings can be achieved using atmospheric plasma spray or combustion powder Thermos-pray.

Surface protection your specific wear needs

Thermal-sprayed carbide coatings are often the best choice to protect against:
Abrasion / Adhesion / Erosion (solid particle or cavitation) / Fretting / Impact / Galling / Sliding wear / Hard surfaces / Complex combined wear mechanisms.

	Chemistry	Grade	Flow Density	Size	Hardness	Application Data
Carbide/ Tungsten Powder
WC-Co 88/12 Agglomerated & Sintered	WC:87-89 Co:11-13	88/12	4.3-4.8 Typical 4.5	5-30um 10-38um 15-45um 20-53um 45-90um	HV 1000/1200 Deposit efficiency 50-70%	HVOF, APS,HVAF WC(2-3mciron), WC 0.6micron is also avaliable Hard, dense coatings with good abrasion,erosion,erosion and sliding wear resistance Smooth coatings with fine microstructure and high bond strengths Used for general wear, paper rolls, wire drawing equipment, fan and compressor blades, pump seals and housing, machine parts, etc.
WC-CO 83/17 Agglomerated & Sintered	WC:82-84 Co:16-18	83/17	4.3-4.8 Typical 4.5	5-30um 10-38um 15-45um 20-53um 45-90um	HV 850-1050 Deposit efficiency 50-70%	HVOF, APS WC(2-3micron) WC 0.6micron is also avaliable Higher ductility than WC-CO 88/12 due to higher CO content Hard,dense coatingswith low sliding wear andhigh impact resistance Protection against fretting and abrasion Low oxidation and corrosion resistance extrusiondies, glass industry,paper mill rolls, pump parts, wire drawing equipment, etc.
WC-CoCr 86/10/4 Agglomerated & Sintered	WC-CoCr 86/10/4	86/10/4	4.3-4.8 Typical 4.5	5-30um 15-45um 10-38um	HV 1000/1200 Deposit efficiency 50-70%	HVOF/HVAF WC(2-3micron) WC 0.6micron is also avaliable CoCr matrix shows higher corrosion and abrasion resistance than Co matrix Hard chrome replacement Extremely smooth surface finish achievable Used for paper rolls, gate and ball valves, hydraulic cylinders, compressor shafts, mud pump rotors.
Cr3C2-NiCr 75/25 Agglomerated & Sintered	Cr3C2-NiCr 75/25	25/75	2.3-2.8 Typical 2.5	5-30um 10-38um 15-45um 20-53um 45-90um	HV 700-900 Deposit efficiency 50-60%	HVOF/HVAF Medium carbide For dense oxidation and erosion resistance coatings good cavitation resistance Hot gas corrosion resistance Used for valves stems, turbine components, fuel rod mandrels, etc.
WC-CrC-Ni 73/20/7 Agglomerated & Sintered	WC-CrC-Ni 73/20/7	73/20/7	4.3-4.8 Typical 4.5	5-30um 10-38um 15-45um 20-53um 45-90um	HV 1200-1300 Deposit efficiency 50-60%	HVOF Higher oxidation and corrosion resistance than pure WC-Ni-based coatings Smooth coatings with fine microstructure and high bond strengths Used for gate valves, etc.
WC-Ni 90/10 Agglomerated & Sintered	WC-Ni 90/10	90/10	4.3-4.8 Typical 4.5	5-30um 10-38um 15-45um 20-53um 45-90um	HV 600-800 Deposit efficiency 50-60%	HVOF Better corrosion protection than WC-Co Superior deposition efficiency Used for fan blades, pump components, dies, valve seats, oil field apparatus and other ersion, abrasion and sliding wear applications
WC-Hastelloy C-276 82/18 Agglomerated & Sintered	WC-C276 82/18 cross refrence Amperit529	8218	4.5-5.0 Typical 4.7	15-45um 10-38um	HV 1200-1350 Deposit efficiency 50-60%	HVOF Better anti-corrosion performance than normal 8812,86104etc. have better preformance of coating exposed to seawater, organic aicd.
WC-Co 92/8 Sintered & Crushed	WC-Co 92/8 Other ratio is avaliable	92/8	5.0-5.5 Typical 5.2	5-30um 10-38um 15-45um 20-53um 45-90um	HV 1300-1500 Deposit efficiency 50-60%	HVOF/PTA More dense coating is approached.
Cr3C2-NiCr 80/20 Agglomerated & Sintered	Cr3C2-NiCr 80/20	80/20	2.3-2.8 Typical 2.5	5-30um 10-38um 15-45um 20-53um 45-90um	HV 800-1000 Deposit efficiency 50-60%	HVOF Higher hardness than 75/25 ratio

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