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Dimensõesdos Furos E. C. dosFuros ÁreaAberta Disposiçãodos Furos
L I c C
0,5 0,4 1,35 5,5 27,00% RT
0,8 4 1,6 4,8 41,70% RT
1,25 2,5 1,75 3 59,50% RT
3 30 6 36 42,00% RT
4,2 10,5 5,6 13 61,00% RT
8 30 14,4 40 41,70% RT
9,5 40 Q Q Q Q
12 40 Q 45 Q Q
15 30 20 38 59,00% AL
20 50 32 62 50,00% AL
25,4 31 46 219 8,00% AT
28 44 Q Q Q AT
38 127 Q Q Q AT
50 125 Q Q Q RL
72 110 Q Q Q RT
76 101,6 Q Q Q AT

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LEGENDA
I = Lado Menor
L = Lado Maior
c = Distância entre centros de furos, lateral
C = Distância entre centros de furos, terminal
P = Porcentagem de área aberta
Q = Qualquer
AL = Alternada longitudinal
AT = Alternada transversal
RL = Reta longitudina
RT = Reta transversal

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FÓRMULA
metalper-ret01

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