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Grain Fineness Number Formula

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Grain Fineness Number is a quantitative indication of the grain distribution. Check FAQs

GFN = \frac{ΣFM}{ΣF i}

GFN - Grain Fineness Number?ΣFM - Sum of Product of Factor And Grams?ΣF_i - Total Mass of Sand?

Grain Fineness Number Example

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With units

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Here is how the Grain Fineness Number equation looks like with Values.

Here is how the Grain Fineness Number equation looks like with Units.

Here is how the Grain Fineness Number equation looks like.

4.0103 = \frac{15.6}{3.89}

4.0103 = \frac{15.6g}{3.89g}

4.0103 = \frac{15.6}{3.89}

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Grain Fineness Number Solution

Follow our step by step solution on how to calculate Grain Fineness Number?

FIRST Step Consider the formula

GFN = \frac{ΣFM}{ΣF i}

Next Step Substitute values of Variables

∴

GFN = \frac{15.6g}{3.89g}

Next Step Convert Units

∴

GFN = \frac{0.0156kg}{0.0039kg}

Next Step Prepare to Evaluate

∴

GFN = \frac{0.0156}{0.0039}

Next Step Evaluate

∴

GFN = 4.01028277634961

LAST Step Rounding Answer

∴

GFN = 4.0103

Grain Fineness Number Formula Elements

Variables

Grain Fineness Number

Grain Fineness Number is a quantitative indication of the grain distribution.

Symbol: GFN

Measurement: NAUnit: Unitless

Note: Value should be greater than 0.

Formulas to find Grain Fineness Number

Sum of Product of Factor And Grams

Sum of Product of Factor And Grams the total obtained by multiplying each factor by its corresponding weight in grams and then adding all those products together.

Symbol: ΣFM

Measurement: WeightUnit: g

Note: Value should be greater than 0.

Formulas to find Sum of Product of Factor And Grams

Total Mass of Sand

Total Mass of Sand is the combined weight of all the sand used in the molding process to create the mold cavity for casting.

Symbol: ΣF_i

Measurement: WeightUnit: g

Note: Value should be greater than 0.

Formulas to find Total Mass of Sand

Other formulas in Permeability Number category

Go Air Pressure during Testing

ρ = \frac{V \cdot H sp}{PN \cdot A \cdot t p}

Go Cross-Sectional Area of Specimen

A = \frac{V \cdot H sp}{PN \cdot ρ \cdot t p}

Go Time Taken during Testing

t p = \frac{V \cdot H sp}{PN \cdot ρ \cdot A}

Go Permeability Number or Standard Specimen

PN = \frac{501.28}{p c \cdot t p}

How to Evaluate Grain Fineness Number?

Grain Fineness Number evaluator uses Grain Fineness Number = Sum of Product of Factor And Grams/Total Mass of Sand to evaluate the Grain Fineness Number, The Grain Fineness Number is the ratio of summation of product of sand retained in each sieve and respective multiplicative factor to the total amount of sand. Grain Fineness Number is denoted by GFN symbol.

How to evaluate Grain Fineness Number using this online evaluator? To use this online evaluator for Grain Fineness Number, enter Sum of Product of Factor And Grams (ΣFM) & Total Mass of Sand (ΣF_i) and hit the calculate button.

FAQs on Grain Fineness Number

What is the formula to find Grain Fineness Number?

The formula of Grain Fineness Number is expressed as Grain Fineness Number = Sum of Product of Factor And Grams/Total Mass of Sand. Here is an example- 4.010283 = 0.0156/0.00389.

How to calculate Grain Fineness Number?

With Sum of Product of Factor And Grams (ΣFM) & Total Mass of Sand (ΣF_i) we can find Grain Fineness Number using the formula - Grain Fineness Number = Sum of Product of Factor And Grams/Total Mass of Sand.

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: Unit

Grain Fineness Number Formula

Grain Fineness Number Example

Grain Fineness Number Solution

Grain Fineness Number Formula Elements

Other formulas in Permeability Number category

How to Evaluate Grain Fineness Number?

FAQs on Grain Fineness Number

Variable Name