APPENDIX B. ACCESSORIES
THIN-LINE
®
SERIES 180M WELD HEADS
B-2
990-133
Electrodes
MATERIAL DESCRIPTION
RWMA 2 -- Copper-Chromium Alloy
83B Rockwell Hardness, 85% conductivity. Used for
welding steels, nickel alloys and other high resistance
materials.
RWMA 3 -- Copper-Beryllium Alloy
100B Rockwell Hardness, 48% conductivity. Used for
welding high resistance materials requiring high weld
forces.
GLIDCOP -- AL-15 -- Dispersion Strengthened Copper
With 0.15% Aluminum Oxide
68B Rockwell Hardness, 92% conductivity. Longer life,
greater thermal stability, higher strength than RWMA 2.
Generally interchangeable with RWMA 2 without
changing schedules. GLIDCOP is a trademark of SCM.
RWMA 11 -- Copper-Tungsten Alloy
90B Rockwell Hardness, 46% conductivity. Usually
inserted into an RWMA 2 shank. Used for welding
cuprous and precious metals. Used for light projection
welding dies.
RWMA 13 -- Tungsten
70A Rockwell Hardness, 32% conductivity. Usually
inserted into an RWMA 2 shank. Cannot be machined but
may be ground to the desired shape. Used to weld non-
ferrous metals such as copper and brass.
RWMA 14 -- Molybdenum
90B Rockwell Hardness, 31% conductivity. Usually
inserted into an RWMA 2 shank. Machineable. Used for
welding copper, silver, gold, and their alloys.
Summary of Contents for THIN-LINE 180 M Series
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