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Section weight for Roll pass Design

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How to calculate section weights 1:- Billet weight = Side × Side × Density × Lengths 2:- Over weights = a × b × 3.1428571429 = Area  Area × Density = Weight 3:- Round weight=   πr^× Density             = Area × .00785= weight
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Section Areas in Rolling Mill

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Section Area 1:- Square Area = Side × Side  2:- Ovel Area     = a × b ×  3.1428571429 https://svinaykumar1987.blogspot.com/2021/09/roll-pass-design-number-of-passes.html 3:- Round Area =   3.1428571429 × r × r  https://svinaykumar1987.blogspot.com/2021/08/roll-pass-design-for-continuous-bar-mill.html 4:- Rectangular Area = L × W 
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Roll pass design ( Number of passes required in Rolling)

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When we talk, how many passes required in rolling then we calculate Number of passes   Number of passes = log of coefficient of Elongation / log(1.29) Where  1:- Number of passes can be 6 , 9 , 15 , 19 , 21, 24, etc according Billet Size and Finished Size  2:- co-efficient of Elongation = Billet Area / Finished Size Area  https://svinaykumar1987.blogspot.com/2021/09/section-areas-in-rolling-mill.html 3:- log(1.29)= 0.1105897103 Example:- Billet Size- 150×150 mm                   Billet Area- 22500                   Finished Size- 20 mm                   Finished Area- 314  Co- efficient of Elongation = 22500 / 314                                                 =71.656051   ...
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