What steel grade would you select for an automotive body panel (e.g. wing panel)?
DD12 - This is an uncoated hot rolled steel and we have already decided that we require a steel
with a hot-dip iron-zinc alloy coating. Hence, whilst the yield strength is appropriate
the corrosion protection is not. Try again. |
|
S460MC - This is an uncoated hot rolled steel and we have already decided that
we require a steel with a hot-dip iron-zinc alloy coating. Also the yield strength is far
to high for this application. Try again. |
|
DC01+ZE - This grade does have a corrosion protecting coating applied to it, in this case
an electrolytically applied zinc coating however we have already decided
that we require a hot-dip iron-zinc alloy coating. Try again. |
DX51D (FeP02G) - Correct. this grade matches all our requirements of formability, strength
level (note that the lists give a max. yield strength and that our requirement is below this maximum),
corrosion resistance and cost. |
|
DX53D (FeP05G) - This grade has the correct strength level and the right type of coating for the
application however a body panel does not require deep drawing but predominantly
stretch forming. Therefore we can save cost by specifying a cheaper grade that
can be used for bending/drawing rather than deep drawing. Try again. |
|
Try again. |
|
Click on your answer to check and make a note of the answer on your notepad.
Now that we have identified the most important properties for an automotive body panel
and have found out more information about these properties we have been able to make
some suggestions regarding the steel. We can take this a step further and try to
select a steel grade and processing route for this application. Move onto the steel
stockholders list to find out more about the steels that are available.
If you have not already reviewed the section on cost do so now by clicking
here.
You will also need to view the STEEL STOCKHOLDERS LIST
|
NOTEPAD
The 3 most important properties for an automotive body panel are:
Corrosion Resistance
Formability
Cost
Typical yield strength level for a family saloon car panel (roof or wing) is:
150 - 250 MPa (more accurately 200 MPa)
A suitable coating for a family saloon car panel
(wing panel) is:
Hot-Dip Iron-Zinc Alloy Coated Steel (Galvannealed
Steel)
Forming route and formability parameter used when producing a car body panel:
Stretch forming and n value
Your selection of strip steel grade for a family saloon car panel (wing panel):
DX53D (FeP05G)
Printable Notepad
|
