tungsten wire

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Product
tungsten wire
Posting date : Jul 18, 2015
Membership
Free Member Scince Jul 17, 2015
FOB Price
$90
Min. Order Quantity
10KG
Supply Abillity
1 TON
Port
SHANGHAI
Payment Terms
TT
Package
carton
Keyword :
Category
Contact
skye
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Product Detail
Company Info
 
Quick Detail
Place of Origin
China [CN]
Brand Name
S&P
HS-CODE
8101-96
Package & Delivery Lead Time
Package
carton
Delivery Lead Time
15 days
Detailed Description
Tungsten metal is lustrous and silvery white in colour, and does not occur naturally (it has an abundance of 1 ppm in the earth's crust). It is found in the ore Wolframite, a tungstate of iron and manganese, (FeMn)WO4, which is converted to the trioxide and then reduced to the metal by reduction in hydrogen (carbon cannot be used as the very stable carbide would result). Tungsten metal is relatively inert, resisting attack by oxygen, acids and alkalis, although it will react with fused, oxidising alkali media. It has the highest melting point of all metals and, when pure, it can be worked with relative ease; however, the presence of impurities renders tungsten extremely brittle and, therefore, difficult to fabricate.

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