we have a speicial type aluminum casting alloy-K alloy can be used for aluminum die casting, pernament mold casting.
Salt-spray testing over 3,000 hours resulted in no metal loss on K-Alloy components, as seen in comparison here with a component cast from a standard aluminum alloy.
Exposing aluminum or aluminum alloys to extremely harsh environments has always held an inherent risk of corrosion—which ultimately may result in product or system failure. With its innovative K-Alloy technology, Delphi Corp. (www.delphi.com) is helping licensed manufacturers to produce aluminum components that last longer in everything from vehicles to outdoor lighting components.
Delphi supplies mobile electronics and transportation systems for automotive manufacturers, including powertrain, safety, steering, thermal, and controlscurity systems, electrical/ electronic architecture, and in-car entertainment technologies. Originally, it developed and patented K-Alloy to produce more robust aluminum diecast components for under-hood applications where salt corrosion, heat, vibration, and shock could lead to part failure—and higher warranty costs for the manufacturer. In production since 2003, Delphi has millions of K-Alloy parts in the field demonstrating timeproven performance, as evidenced by fewer warranty claims.
This aluminum casting alloy is described as having “designed-in corrosion resistance.” Manufacturers licensed to use K-Alloy are introducing products that show corrosion resistance superior to parts made with traditional aluminum alloys like A380, A360, and A413.
K-ALLOY
K-Alloy has many benefits:
· Excellent corrosion resistance
· Improved cooling due to better thermal conductivity
· Eliminates the need for pre and post operations like anodizing and painting
MECHANICAL PROPERTIES
US/UK | Metric
|
Material
|
Alloy
|
Tensile Strength
|
Yield Strength (0.2%)
|
Hardness
|
Elongation
|
|
|
|
MPa
|
MPa
|
Brinell (HB)
|
% in 50mm
|
|
Aluminum
|
K-Alloy
|
295
|
172
|
80
|
5
|
|
Material
|
Alloy
|
Tensile Strength
|
Yield Strength (0.2%)
|
Hardness
|
Elongation
|
|
|
|
PSI x 10 3
|
PSI x 10 3
|
Brinell (HB)
|
% in 50mm
|
|
Aluminum
|
K-Alloy
|
43
|
25
|
80
|
5
|
PHYSICAL PROPERTIES
US/UK | Metric
|
Material
|
Alloy
|
Density
|
Thermal Conductivity
|
Coefficient of Thermal Expansion
|
Electrical Conductivity
|
|
|
|
lb/in 3
|
BTU/h∙ft∙°F
|
µin/in°F
|
%IACS
|
|
Aluminum
|
K-Alloy
|
0.095
|
65.3
|
11.5
|
32
|
|
Material
|
Alloy
|
Density
|
Thermal Conductivity
|
Coefficient of Thermal Expansion
|
Electrical Conductivity
|
|
|
|
g/cm 3
|
W/m K
|
µm/m°K
|
%IACS
|
|
Aluminum
|
K-Alloy
|
2.63
|
113
|
20.7
|
32
|
COMPOSITION
| |
ALUMINUM |
|
%
|
K-Alloy
|
|
Aluminum
|
Bal.
|
|
Copper
|
0.05 - 0.08
|
|
Magnesium
|
0.35 - 0.50
|
|
Iron (max)
|
0.8 - 1.0
|
|
Tin (max)
|
0.03
|
|
Nickel (max)
|
0.03
|
|
Zinc
|
0.20
|
|
Manganese
|
0.50 - 0.60
|
|
Silicon
|
9.0 - 11.5
|
|
Chromium
|
0.05
|
|
Titanium
|
0.03 - 0.18
|
|
RoHS Compliant
|
✓
|
|
ALUMINUM
|
|
%
|
K-Alloy
|
|
Aluminum
|
Bal.
|
|
Copper
|
0.05 - 0.08
|
|
Magnesium
|
0.35 - 0.50
|
|
Iron (max)
|
0.8 - 1.0
|
|
Tin (max)
|
0.03
|
|
Nickel (max)
|
0.03
|
|
Zinc
|
0.20
|
|
Manganese
|
0.50 - 0.60
|
|
Silicon
|
9.0 - 11.5
|
|
Chromium
|
0.05
|
|
Titanium
|
0.03 - 0.18
|
|
RoHS Compliant
|
✓
|
|
ALUMINUM
|
|
%
|
K-Alloy
|
|
Aluminum
|
Bal.
|
|
Copper
|
0.05 - 0.08
|
|
Magnesium
|
0.35 - 0.50
|
|
Iron (max)
|
0.8 - 1.0
|
|
Tin (max)
|
0.03
|
|
Nickel (max)
|
0.03
|
|
Zinc
|
0.20
|
|
Manganese
|
0.50 - 0.60
|
|
Silicon
|
9.0 - 11.5
|
|
Chromium
|
0.05
|
|
Titanium
|
0.03 - 0.18
|
|
RoHS Compliant
|
✓
|
|
ALUMINUM
|
|
%
|
K-Alloy
|
|
Aluminum
|
Bal.
|
|
Copper
|
0.05 - 0.08
|
|
Magnesium
|
0.35 - 0.50
|
|
Iron (max)
|
0.8 - 1.0
|
|
Tin (max)
|
0.03
|
|
Nickel (max)
|
0.03
|
|
Zinc
|
0.20
|
|
Manganese
|
0.50 - 0.60
|
|
Silicon
|
9.0 - 11.5
|
|
Chromium
|
0.05
|
|
Titanium
|
0.03 - 0.18
|
|
RoHS Compliant
|
✓
|
|
ALUMINUM
|
|
%
|
K-Alloy
|
|
Aluminum
|
Bal.
|
|
Copper
|
0.05 - 0.08
|
|
Magnesium
|
0.35 - 0.50
|
|
Iron (max)
|
0.8 - 1.0
|
|
Tin (max)
|
0.03
|
|
Nickel (max)
|
0.03
|
|
Zinc
|
0.20
|
|
Manganese
|
0.50 - 0.60
|
|
Silicon
|
9.0 - 11.5
|
|
Chromium
|
0.05
|
|
Titanium
|
0.03 - 0.18
|
|
RoHS Compliant
|
✓
|
for more information, pls visit our website: www.idiecasting.com
