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G25 Tungsten Machinery Carbide Sizing Balls For Radio 4.76MM 9.525MM 3.56MM

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Shandong JinNai International Trade Co., Ltd.

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Brand Name :	JN
Model Number :	4.76MM 9.525MM 3.56MM
Certification :	ISO SGS
Price :	Negotiable
Payment Terms :	L/C, D/A, D/P, T/T, Western Union, MoneyGram,Paypal
Supply Ability :	10tons per week
Delivery Time :	7-15 days

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G25 Tungsten Carbide Machinery Bearing Balls For Radio 4.76MM 9.525MM 3.56MM

Tungsten carbide balls provide a binder percentage slightly higher than the standard balls (7-9%).

They are available on demand.

The mechanical properties and corrosion resistance are a little lower if compared to standard K20 balls.

Virgin powder is strictly used into this kind of production.

Applications
Special and hydraulic precision valves, special bearings, couplers, flow meters, sprayers, recirculating balls, ball spindles, tooling machines, sliding rails, ballpoint pens, pin and tips for indicators, precision measurement instruments, medical instruments. They are used in naval, mining, petrol and coining industry.

Chemical composition

Type	%WC	%Co	-	-	-	-	-	-	-	-	-
WC30	91.00-93.00	7.00-9.00	-	-	-	-	-	-	-	-	-

International standards

Type	ISO	USA	CHN	-	-	-	-
WC30	K30	C2	YG8	-	-	-	-

Physical / mechanical / thermal / electric / magnetic properties

Property	Symbol	U.o.M.	Type	Notes	Values
Density	δ	[g/cm3]	Physical	Room temp.	14.70
Young's modulus	E	[GPa]	Mechanical	-	630
Specific heat	c	[J/kg-K]	Thermal	Room temp.	227
Coefficient of linear thermal expansion	α	[10^-6/ºC]	Thermal	(ΔT=0-100°C)	6.0
Thermal conductivity	λ	[W/(m·K)]	Thermal	Room temp.	82.0
Electric resistivity	ρ	[Ωm10^-9]	Electric	-	175
Relative magnetic permeability	µ	-	Magnetic	Slighlty ferrom.	max 12

Technical data

Property	Type	U.o.M.	Values	U.o.M.	Values
Grain size	Physical	[µm]	1.2 - 1.6	-	-
Hardness	Mechanical	[HRA]	89.5 - 91.0	[HV]	1480 - 1700
Ultimate compressive strength	Mechanical	[MPa]	5400 - 5700	[psix10^3]	784 - 826
Service temperature	Thermal	[ºC]	-196 / 500	[ºF]	-320.8 / 932

Corrosion Resistance
As a general rule Tungsten Carbides with Cobalt binder show good corrosion resistance into basic solution while they are not resisting into acid solutions.

Product Tags:

tungsten carbide beads

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