Date post: | 13-Jul-2015 |
Category: |
Self Improvement |
Upload: | steelnews |
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screens
Coil Calculator
For calculating
values of coiled
coated or cold
rolled (uncoated)
sheet steel. See
Features and
Exercises below.
screens
Sheet Calculator
For calculating values of individual sheets or
bundles of sheet steel. See Features and
Exercises below.
screens
Conversions
Quick reference guide for
viewing:
• Decimal Ranges for
MIN, NOM, and MAX of a Gauge
• The Yield Difference between the
MIN and NOM, and MIN and
MAX of a Gauge (%MIN-NOM
and %NOM-MAX, respectively)
screens
Conversions (cont’d)
Quick reference guide for
viewing:
• Weight per Square Feet or
Square Meters of a Gauge
• Available in Imperial and Metric
units in either a Chart or
Interactive Dial view (Dial View is
available in iOS and Android only)
features
1. “Calculate” Selection
Advanced Mode
All possible values will be calculated from the values
present. Most users will prefer Advanced Mode.
features
1. “Calculate” Selection (cont’d)
“Guided” Mode
Unravel will guide the user
through the possible fields
they could use to calculate
the selected field. Unravel
is in “guided” mode if any
value other than Advanced
is selected. Fields with a
gray background are not
required for the calculation,
but can be entered.
features
2. “Steel Type” Selection
Used to calculate weight
and determine decimal to
gauge conversions.
• Coated: Use for
Galvanized, Galvannealed,
Galvalume, Aluminized
• Uncoated – CR: Use for
Cold Rolled
features
3. “Units” of Measure Selection
Used for converting between
Imperial and Metric units of
measure. iOS and Android also
have a “Default Unit of Measure”
setting in the gear icon in the
upper right of the screen.
features
4. Clear Screen Function
To clear all of the values in
the current screen, click the
Clear button beside the
“Units” Selection or navigate
to a different screen in the
application.
Android Users: The Clear button
is available in the Android menu
button.
features
5. Graphical Representation of
Coil and Sheets
Displays all manually
entered and calculated
values for the current
screen.
features
5. Graphical Representation of
Coil and Sheets (cont’d)
When possible, the
Formula used to calculate
the field selected to
“Calculate” is displayed
below the graphic. The
Formula is only available
when “Calculate” is in
Guided Mode (i.e. any
value except “Advanced”
is selected).
features
6. Fields
Unravel calculations are
executed according to the
following rules:
• Unravel automatically calculates all possible
field values based on available inputs.
• If Unravel needs to recalculate a field value
based on a newer input, Unravel will adjust
the earliest value entered first. See Coil
Calculator samples for an example.
features
6. Fields (cont’d)
Unravel calculations are
executed according to the
following rules:
• Minimum & Maximum values are enforced
on all fields.
• Field values can be changed at any time
regardless whether they are manually
entered or calculated and Unravel will
recalculate all applicable fields using the
new input
features
6. Fields (cont’d)
Unravel calculations are
executed according to the
following rules:
• Decimal can be entered using either the 10-
key or the Gauge Converter controls
explained below.
• PIW is only available when Units are set to
“Imperial.”
features
6. Fields (cont’d)
Unravel calculations are
executed according to the
following rules:
• CWT Price is unavailable until a weight is
present.
• Price fields will only calculate based on the
available metrics. For example, Price per
Square Feet is only calculated if Area is
populated, and Price per Linear Feet is only
calculated if Length is populated.
features
7. 10-Key Entry (mobile device only)
Used to enter numeric values
into fields. Click the
“C” or the circled “X”
to clear the values
from a field.
*Screenshot taken from iPad
features
8. Decimal to Gauge Converter
All This is an alternate method to input
decimal for users who typically work in
gauges. It displays the ASTM ranges
for the MIN, NOM, and MAX decimal
ranges of a gauge for the type of steel
selected (Coated or Uncoated Cold
Rolled).
features
8. Decimal to Gauge Converter (cont’d)
(Mobile device only) Turn
the dial to the desired
gauge then click the MIN,
NOM, or MAX button to
insert the corresponding
decimal into the field.
*Screenshot taken from iPad
sample calculations
Coil Calculator
Use a Tape Measure and Micrometer to find
Coil Weight, Length, Area, and Price
1. Set the selections
• Calculate: Advanced
• Steel: Coated
• Units: Imperial
sample calculations
Coil Calculator
2. Input data into the Coil Calculator
Important! Be sure to enter OD first. The order the
fields are entered in is critical later in this
calculation.
• OD: 47.5 inches
• ID: 20 inches
• Width: 48 inches
• Decimal: NOM of 20 Gauge (.0396)
Note: PIW, Length, Area and Weight are automatically
calculated as you are entering values, and the Price fields
become available when Weight is calculated.
sample calculations
Coil Calculator
Finding the price
3. Enter CWT: $35.75
• The Coil Prices are all calculated
since CWT, Length, and Area were
all populated from the step above.
sample calculations
Coil Calculator
Sell it Overseas
4. Change the Units Selection to
“Convert to Metric”
• All values are converted to Metric
units, and Prices are adjusted
accordingly. Note that PIW is not
available, since this is only
available in Imperial Units.
sample calculations
Coil Calculator
Sell it Overseas
5. Change the Units Selection to
“Convert to Imperial”
• All values return to their original
values.
sample calculations
Coil Calculator
Breaking it down: Derived Calculations
The If you change a value at any time, regardless if it
is manually entered or automatically calculated, all
other possible values in the screen will be
recalculated. This is a good way to:
• Find the new Weight and OD of a coil when it is
“broken down,”or cut to coils of shorter lengths
(change the Length or Area).
• Find the new Weight of a slit coil (change the
Width).
sample calculations
Coil Calculator
Breaking it down: Derived Calculations
(cont’d)
• Compare Yield difference of coils or sheets at
the MIN, NOM, and MAX of a gauge or at
different gauges (change the Decimal, either
manually or using the Gauge Converter).
• Using the Calculations from the steps above:
sample calculations
Coil Calculator
6. Change Length to 2,000 feet
• All This simulates “breaking” a coil into
smaller coils.
• The new Weight, OD, and Prices are
calculated for the smaller coil. (All other
fields are unchanged.)
Note: OD will only be recalculated if OD was the
first value input. Otherwise the first value
entered, often ID since it is at the top of the
list, would be adjusted.
sample calculations
Coil Calculator
7. Change the Width to 12 inches
• This simulates slitting the new coil into 4
equal parts.
• The new Weight, Area, and Prices are
calculated for the new slit coils.
sample calculations
Coil Calculator
Quick Metric Conversions
You can quickly convert any fields between Metric
and Imperial at any time by changing Units.
1. To convert from Metric to Imperial, set Units to
“Convert to Metric”
2. Input the value(s) you want to convert into the
appropriate field(s)
For example:
sample calculations
Coil Calculator
Quick Metric Conversions
You can quickly convert any fields between Metric
and Imperial at any time by changing Units.
3. Change Units to “Convert to Imperial”.
Units are updated to:
4. Wash. Rinse. Repeat.
sample calculations
Sheet Calculator
The Sheet Calculator works nearly identically to
the Coil Calculator. Once you are familiar with the
Coil Calculator, all the same techniques will apply
for sheets.
sample calculations
Sheet Calculator
Calculate the Pieces in a Bundle
Calculate the pieces in a bundle using a tape measure and
scale.
1. Change the Selections to:
• Calculate: Advanced
• Steel: Coated
• Units: Imperial
sample calculations
Sheet Calculator
2. Input the following values
• Width: 60 inches
• Length: 120 inches
• Decimal: Min of 25 Gauge (.0207)
• Total Weight: 5000 lbs
Pieces, Total Length, and Total Area will be
automatically calculated.
sample calculations
Sheet Calculator
3. Get Price: Set CWT Price $39.50
Note: All remaining Price fields are calculated.
sample calculations
Sheet Calculator
How much does a bundle weigh?
1. Input the following values
Important! Add Pieces first. This order is
important for later in this exercise.
• Pieces: 65
• Width: 54 inches
• Length: 110 inches
• Decimal: NOM of 19 Gauge (.0456)
Total Weight, Piece Weight, Total Length, and
Total Area will be automatically calculated
sample calculations
Sheet Calculator
2. Input the following values
Pieces, Total Length, and Total Area
are automatically recalculated.
Note: Pieces will only be recalculated if Pieces
was the first value input. Otherwise the first
value entered, often Width since it is at the top
of the list, would be adjusted.
sample calculations
Finding Yield Difference
There are two quick ways to find
the Percent Yield Difference
between the NOM and MIN
decimals of a gauge, or between
two different gauges.
sample calculations
Finding Yield Difference
1. Quick Reference for % Yield Diff in Gauge to
Decimal Conversion
Open Conversions Screen and
check the %MIN-NOM
(%NOM-MAX is the same) or
%MIN-MAX. Multiply the % Yield
difference to specific values in
coils/bundles to get the difference
between each value.
sample calculations
Finding Yield Difference
2. Yield Difference Using the Coil or
Sheet Calculators
Enter a Coil or Sheet into the calculator
using the NOM or MIN decimal of a
Gauge, then change the decimal to
compare the Yield difference.
sample calculations
Finding Yield Difference
1. Input the following values
• ID: 20 inches
• OD: 44.5 inches
• Width: 48 inches
• Decimal: Min of 25 Gauge (.0207)
PIW, Length, Area and Weight will be
automatically calculated
• Length = 4,996 feet
sample calculations
Finding Yield Difference
2. Change Decimal to NOM of 25
Gauge (.0247)
Length and Weight are automatically
recalculated
• New Length = 4,187 feet
• Note that the Weight has not
changed