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Material Guide

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 -



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  [ Head Office and Factories ]
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