Tungsten

Applications

Filament, Heater, Grid, Spring, Anchor, Electrode, etc.

Material Lineup for Tungsten

Tn

Chemical Component (%)

	Finish	Code	W
Grade1	Drawn	VWW1D	99.95min
	Chemical Treating	VWW1C
	Electropolished	VWW1E
	Annealed	VWW1H
Grade2	Drawn	VWW2D	99.90min
	Chemical Treating	VWW2C
	Electropolished	VWW2E
	Annealed	VWW2H

Mechanical Property

	Rod Size		D,C,E of VWW1,2	H of VWW1,2
	Diameter µm	MG	Tensile Strength (N/mm2)	Tensile Strength (N/mm2)
Grade1 & Grade2	less than 25	less than 1.9	3000min 4500max	1700min 3600max
	25min less than 50	1.9min less than 7.5	2400min 4000max	1500min 3400max
	50min less than 70	7.5min less than 14.8	2300min 3800max	1100min 3000max
	70min less than 130	14.8min less than 51.0	2100min 3600max	1100min 3000max
	130min less than 180	51.0min less than 97.7	1900min 3400mqx	1100min 3000max
	180min less than 260	97.7min less than 204	1900min 3400max	-