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Product
Technical
Information

Infralloy^TM 7400
Superfine (0.2 – 0.4 μm)
Tungsten Carbide (WC)

Tungsten Carbide Powder

· Homogeneous 0.2 to 0.4 mm superfine powder for exceptionally demanding hardmetal applications
· Design for parts requiring extreme wear resistance and strength
· Offers sharper tool edges, improved edge strength, and excellent hardness/toughness
· Increased wear resistance can improve productivity via extended part lifetime, less down time, lower maintenance, and other system cost reduction
· Microdrill applications

Powder Properties

Particle size (SEM, micron)	0.25
Total Carbon, %	6.10
Free Carbon, %	< 0.1
Phase (XRD)	WC

Other Elements

Element (wt%)	Weight %	Element (wt%)	Weight %
Al	<0.006	Ni	<0.001
Co	0.9-1.0 %	Si	0.04
Fe	<0.001	Sn	0.01
Cu	0.02	Ti	0.06
Mg	<0.001	Zn	0.004
Mn	0.06	Cr	<0.001
Mo	<0.001	Na	<0.001

Morphology

Scanning electron micrograph typical of Infralloy^T^M 7400 WC powder

Crystallinity

X-ray diffraction analysis showing the WC crystalline phase

Sintered Bulk Properties (WC/10Co)

Coercivity Hc (kA/m)	26.7
Saturation Magnetization Ms (%)	90.79
Hardness Rockwell A (HRA)	92.7
Density (g/cm³)	14.32
Rupture Strength (N/mm²)	3380
Porosity type	A02B00C00
WC grain size (micron)	0.40

Inframat Corporation
Tel: 860.553.6154 | Fax: 860.553.6645 | sales@advancedmaterials.us

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