Quid ferrum tunditur, et carbida tunditur?
Tungsten chalybs, etiam carbide tungsten notum, est metallum compositum sintered, quod carbidam metallicam continet, praesertim carbide tungsten, carbide cobalt, carbide niobium, carbide titanium, carbide tantalum. Matrix chalybea tungsten componitur ex obduratione temporis et metalli compage. Grana periodi carbidi fere 0.2-10 microns constringuntur ...