REFRACTORY COMPOSITES:

  • COPPER TUNGSTEN
  • SILVER TUNGSTEN
  • COPPER TUNGSTEN CARBIDE
  • SILVER TUNGSTEN CARBIDE
  • SILVER MOLYBDENUM

TOOL-WELD refractory metal composites are used as electrode materials for resistance welding and similar related electrical contact wear applications. The manufacturing process is to press the refractory, sinter at high temperature, and infiltrate with copper or silver. This process produces a very hard material with great arc and wear resistance, high thermal and electrical conductivity, and good physical properties at elevated temperatures.

TYPICAL PROPERTIES:

Tool-Weld Composition RWMA
Group B 		Cond.
% I.A.C.S. 		Rockwell
Hardness 		U.T.S.
psi 		Density
grams/cc 		Mallory
Grade
TW-10 70W30Cu Class 10 50 90B 85,000 14.18 5W3
TW-11 75W25Cu Class 11 48 94B 90,000 14.71 10W3
TW-53 75W25CuAlloy   28 109B 160,000 14.62 10W53
TW-20W 78W22Cu Class 12 46 96B 94,000 15.13 20W3
TW-30W 80W20Cu Class 12 44 98B 96,000 15.52 30W3
TW-40W 85W15Cu   36 102B 75,000 16.19 40W3
TW-12-1 50WC50Cu   47 94B 70,000 11.29 TC5
TW-12-2 56WC44Cu   42 99B 75,000 11.65 TC10
TW-12-3 70WC30Cu   30 37C 85,000 12.61 TC20
TW-TC53 70WC30CuAlloy   47C 90B 150,000 12.61 TC53
TW-20S 78W22Ag   49 91B 130,000 15.52 20S
TW-35S 65W35Ag   55 87B 105,000 14.52 35S
TW-50S 50W50Ag   65 70B 80,000 13.41 50S
TW-G17 60Mo40Ag   45 82B 80,000 10.22 G17
TW-G18 50Mo50Ag   49 70B 40,000 10.25 G18
TW-W 100W Class 13 30 43C 100,000 19.24  
TW-M 100Mo Class 14 32 95B 100,000 10.15  
HM-1200 93W7NiFeMo   14 30C 115,000 17.61