WT-6 Coated Welding Electrode is a non-ferrous, cobalt-chromium-tungsten alloy.
Description/Applications:
This WT-6 Coated Welding Electrode is recommended for metal-to-metal abrasion and high impact applications involving high temperatures and/or corrosive media.
WT-6 is the most widely used cobalt base alloy and exhibits good all-round performance. It has excellent resistance to many forms of mechanical and chemical degradation over a wide temperature range, and retains a reasonable level of hardness up to above 800°C.
Particular attributes are its outstanding self-mated anti-galling properties (which result in its wide use as a valve seat material), its high temperature hardness, and a high resistance to impact and cavitation erosion.
WT-6 Coated Welding Electrode is ideally suited to a variety of hardfacing processes.
It has less tendency to crack than WT-12 in multiple layers, but is more wear resistant in abrasion and metal-to-metal or galling conditions.
WT-6 filler metal is used on valve seats and gates; pump shafts and bearings, erosion shields and rolling couples.
It can be machined with carbide tools.
WT-6 Coated Welding Electrode, bonds well with weldable alloy steels, including stainless.
This alloy is non magnetic and is not forgeable.
Typical Chemical Analysis %:
C 1.1, Cr 28, Co bal, W 4.0, Ni <3, Fe <3, Si 1.1, Mo <1, Mn <1.
Typical Mechanical Properties:
Typical Hardness: 42 Rockwell C
Note: The typical hardness values listed above are for multilayer welds. Hardness values for single deposits will be lower because of dilution from the base metal.
Available diameter: 2.4 - 3.2 - 4.0 mm, other diam. on request.
Element | Value |
---|---|
C | 1,1 |
Cr | 28,00 |
Co | Bal. |
W | 4,0 |
Ni | < 3 |
Fe | < 3 |
Si | 1,1 |