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Refractory Metals

We stock Refractory Metals in standard and custom cut sizes to meet your specific application needs.  Available in Rod. Bar and Plate.  We additionally offer same day shipping to get them to you fast.
Refractory Metals In Rod, Bar & Plate
Everything For Resistance Welding

Over A Quarter Century - Everything For Spot Welding

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RWMA CLASS 10 RWMA No. RWMA GENERAL USE * RWMA DESCRIPTION
COPPER-TUNGSTEN 10.74450 Flash and butt welding electrodes where good electrical and thermal conductivity is necessary and where a degree of malleability is desired. A powder metallurgical blend of 45% copper and 55% of the refractory metal tungsten. This combination produces dense, hard metals of superior wear resistance and strength at elevated temperatures. In addition, they possess good thermal and electrical conductivity.

Refractory Metals - Available For Special Applications

RWMA CLASS 11 RWMA No. RWMA GENERAL USE * RWMA DESCRIPTION
COPPER-TUNGSTEN 11.74400 Flash and butt welding electrodes where good electrical and thermal conductivity is necessary and where a degree of malleability is desired. A powder metallurgical blend of 25% copper and 75% of the refractory metal tungsten. This combination produces dense, hard metals of superior wear resistance and strength at elevated temperatures. In addition, they possess good thermal and electrical conductivity.
RWMA CLASS 12 RWMA No. RWMA GENERAL USE * RWMA DESCRIPTION
COPPER-TUNGSTEN 12.74350
Heavy duty projection welding electrodes, electro-forming and electo-forging electrodes facings for upsetting of studs and rivets, cross wire welding of large diameter wire and rod. A powder metallurgical blend of 20% copper and 80% of the refractory metal tungsten. This combination produces dense, hard metals of superior wear resistance and strength at elevated temperatures. In addition, they possess good thermal and electrical conductivity.
RWMA CLASS 13 RWMA No. RWMA GENERAL USE * RWMA DESCRIPTION
TUNGSTEN 13.74300
Cross wire welding of copper and brass, resistance brazing and some upsetting. Welding of braided copper wire to other materials. Tungsten is extremely hard and has low ductility. It cannot be machined with cutting tools but can be ground to required contours. It does not alloy with nonferrous materials. Tungsten has the highest melting point (3,422 C, 6,192 F) of all the metals.
RWMA CLASS 14 RWMA No. RWMA GENERAL USE * RWMA DESCRIPTION
MOLYBDENUM 14.42300 Cross wire welding of copper and brass, resistance brazing and some upsetting. Welding of braided copper wire to other materials. Not as hard as Class 13 and can be drilled and machined to special contours. With relatively good thermal conductivity, molybdenum has a melting point of 2,623 C (4,753 F) and has one of the lowest coefficients of thermal expansion among commercially used metals.

Speciality Material

RWMA CLASS 20 RWMA No. RWMA GENERAL USE * RWMA DESCRIPTION
DISPERSION STRENGTHENED COPPER 20.15760 Welding of metallic coated metal such as galvanized steel, terne plate, etc. A dispersion of aluminum oxide within a copper matrix that exhibits good resistance to softening,and room temperature properties consistent with RWMA Class 2.
* Recommended uses are for illustration only and in no way guarantees suitability for your particular application needs.  Call for details.

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Resistance Welding Machine & Accessory
(269) 428-4770
Everything For Resistance Welding
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