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All-State®
No. 24 DC Phosphor
Bronze Electrode for Copper Base and Some Ferrous Metals
DC Reverse Polarity—All Position
General Characteristics
All-State®
No. 24 produces sound, porosity free deposits on bronze, brass, copper, cast iron
and steel. Smooth deposits
can be made in all positions and the slag is easy to remove.
Typical Applications
Recommended for high strength welds
on phosphor bronze materials. This electrode can also be used to join
copper and brasses. It is commonly
used as an overlay on cast iron or steel and to join dissimilar metals. Superior
for maintenance
repair and fabrication of valve bodies, seats, bearings, bushings, gears, propellers,
impeller blades
and housings. Often used to replace torch application for frictional wear on heavier
sections. Qualities
Tensile strength
—up to 65,000 psi (45.71 kgs/mm2)
Yield strength
—up to 37,000 psi (26.02 kgs/mm2)
Elongation in 2"
—42 to 50%
Hardness
—80 to 100
BrineIl (500 kg. load) Procedures
Base metal must be clean and free of
all moisture. Do not let electrodes absorb moisture as this will cause
porosity. Preheat copper base metals
to 700°F (371°C); phosphor bronze to 450°F (232°C). These
temperatures must
be maintained during welding and between passes. No preheat is necessary when
applying to thin copper sections
or ferrous metals.
