Silicon
Metal
441/553/1101
|
High
Purity
Si
99.9%
for
Alloy
Steel,
Casting,
and
Electronics
Industrial
Reality:
Silicon
Metal
Is
a
Process
Variable,
Not
a
Commodity
For
experienced
steelmakers
and
material
engineers,
silicon
metal
is
rarely
the
cost
driver—but
it
is
often
the
root
cause
of
process
deviation.
Common
Operational
Challenges
-
Inconsistent
silicon
recovery
despite
identical
charge
recipes
-
Unexpected
impurity
pickup
affecting
steel
cleanliness
or
electronic
yield
-
Oxidation
loss
caused
by
mismatched
particle
size
-
Difficult
furnace
control
when
silicon
dissolution
timing
drifts
ZhenAn
develops
Silicon
Metal
3303
and
2202,
supplied
in
441
and
553
sizes,
with
optional
1101-level
purity
control,
to
address
these
issues
at
the
process
level,
not
just
on
paper
specifications.
Product
Positioning
ZhenAn
Silicon
Metal
is
designed
for
industrial
users
who
value
predictability
over
nominal
grade
labels.
-
Grades:
3303
/
2202
(with
1101
purity
reference)
-
Purity
Range:
Up
to
99.9%
Si
-
Sizes:
441
(medium
grain),
553
(coarse
grain)
-
Forms:
Lumps,
granules,
screened
industrial
material
This
configuration
allows
metallurgical
and
materials
teams
to
align
chemical
purity,
particle
size,
and
furnace
behavior
with
their
actual
operating
conditions.
Understanding
Grades:
Why
3303
and
2202
Behave
Differently
The
difference
between
3303
and
2202
is
not
cosmetic—it
determines
impurity
migration
risk.
Typical
Chemical
Composition
(%)
|
Grade
|
Si
|
Fe
|
Al
|
Ca
|
|
Silicon
Metal
3303
|
≥99.3
|
≤0.30
|
≤0.30
|
≤0.03
|
|
Silicon
Metal
2202
|
≥99.5
|
≤0.20
|
≤0.20
|
≤0.02
|
|
Reference:
1101
Control
|
≥99.8–99.9
|
≤0.10
|
≤0.10
|
≤0.01
|
Technical
Implications
-
3303
offers
cost-efficient
silicon
input
for
bulk
alloy
and
carbon
steel
-
2202
reduces
metallic
interference
in
cleaner
steel,
casting,
and
chemical
reactions
-
1101-level
purity
minimizes
downstream
purification
load
in
electronics
and
battery-related
material
chains
Particle
Size
Engineering:
441
vs
553
Particle
size
is
one
of
the
most
underestimated
drivers
of
silicon
yield.
553
Size
(Coarse
Grain)
-
Larger
particle
distribution
-
Reduced
surface
oxidation
-
Higher
effective
silicon
recovery
-
Preferred
for
primary
steelmaking
and
large
furnaces
441
Size
(Medium
Grain)
-
Faster
melting
and
dissolution
-
Improved
distribution
uniformity
-
Better
control
for
casting,
secondary
alloying,
and
chemical
dosing
ZhenAn
applies
strict
screening
control
to
prevent
mixed-size
variability
that
disrupts
reaction
kinetics.
Physical
&
Processing
Characteristics
-
Metallic
gray
crystalline
silicon
-
High
hardness,
controlled
brittleness
-
Melting
point
approx.
1414
°C
-
Density
approx.
2.33
g/cm³
-
Stable
thermal
and
electrical
properties
These
properties
ensure
predictable
melting
behavior
and
reaction
timing
under
industrial
thermal
conditions.
Application-Focused
Performance
Alloy
Steel
&
Carbon
Steel
Production
Silicon
metal
functions
as
a
deoxidizer
and
alloying
regulator,
directly
influencing:
-
Oxygen
control
efficiency
-
Slag-metal
balance
-
Final
steel
strength
and
surface
quality
Using
553-size
3303
or
2202,
steel
plants
can:
-
Improve
silicon
recovery
per
ton
-
Reduce
corrective
alloy
additions
-
Stabilize
chemical
composition
across
heats
Casting
&
Foundry
Operations
In
cast
iron
and
specialty
casting:
-
Medium-grain
441
size
improves
dissolution
consistency
-
Lower
impurity
grades
reduce
defect
risk
-
Silicon
content
control
enhances
fluidity
and
mechanical
properties
Electronics
&
Battery
Material
Supply
Chains
High-purity
silicon
metal
is
a
critical
upstream
feedstock
for:
-
Electronic-grade
silicon
processing
-
Polysilicon
and
photovoltaic
materials
-
Battery
and
energy-related
material
systems
Material
aligned
with
1101
impurity
limits
reduces
contamination
risk
and
downstream
refinement
costs.
Manufacturing
Control
&
Quality
Assurance
ZhenAn
silicon
metal
is
produced
using
submerged
arc
furnace
smelting,
followed
by:
-
Controlled
solidification
-
Mechanical
crushing
-
Precision
screening
-
Batch-based
chemical
verification
Quality
Assurance
Emphasizes
-
Consistent
raw
material
sourcing
-
Batch
traceability
-
Stable
chemical
limits
-
Optional
third-party
inspection
This
focus
on
repeatability
and
transparency
supports
long-term
industrial
cooperation—an
essential
EEAT
trust
factor.
Packaging
&
Industrial
Logistics
-
Bulk
supply
for
steel
and
alloy
plants
-
Palletized
packaging
for
controlled
dosing
-
Moisture-resistant
export
packing
-
Suitable
for
long-distance
and
bulk
handling
Technical
Considerations
from
Industrial
Buyers
Which
grade
suits
impurity-sensitive
processes?
2202
or
material
aligned
with
1101
limits
is
preferred.
Does
size
selection
affect
oxidation
loss?
Yes.
Coarser
sizes
generally
reduce
surface
oxidation,
improving
yield.
Is
silicon
metal
suitable
for
both
steel
and
electronics?
Yes,
when
purity
and
size
are
matched
to
application
requirements.
Can
specifications
be
adjusted?
Chemical
limits
and
size
distribution
can
be
customized
for
specific
industrial
processes.
About
ZhenAn
ZhenAn
supplies
industrial
silicon
metal
and
alloy
materials
to
steelmakers,
alloy
producers,
and
advanced
material
manufacturers
worldwide.
The
company
focuses
on
process
compatibility,
consistency,
and
technical
reliability,
helping
customers
reduce
operational
risk
rather
than
simply
sourcing
raw
materials.
