Tablas de medidas y porcentajes de cribas
 
 
Calibres de los alambres
 
Núm.
•
Pulgs.
Mils. "
m/m
•
•
3/8"
.375
9.50
•
•
5/16
.3125
7.90
3
•
1/4"
.250
6.35
6
•
13/64
.203
5.10
8
•
11/64
.156
4.10
10
•
1/8"
.125
3.17
12
•
7/64
.109
2.77
14
•
5/64
.078
2.00
16
•
1/16
.062
1.58
 
 
Cribas: Calibres contra aberturas
 
CLARO
DE LAS MALLAS
 
 
PULG.
MM
•
1/2"
12.7 mm
•
3/8"
•
5/16"
7.8 mm
•
No.3
1/4"
6.4 mm
•
No.6
13/64"
5 mm
•
No.8
5/32"
4.1 mm
•
No. 10
1/8"
3.3 mm
•
No. 12
7/64"
2.7 mm
•
No. 14
5/64"
2.1 mm
•
No. 16
1/16"
1.6 mm
3 1/2
89
.
.
.
.
.
.
.
.
.
.
3
76
.
*
*
.
.
.
.
.
.
.
2 3/4
70
.
.
.
.
.
.
.
.
.
.
2 1/2
63.5
.
*
*
.
.
.
.
.
.
.
2
51
.
*
*
*
.
.
.
.
.
.
1 3/4
44
.
*
*
*
.
.
.
.
.
.
1 1/2
38
.
*
*
*
.
.
.
.
.
.
1 1/4
32
.
*
*
*
*
*
.
.
.
.
1
25
.
.
*
*
*
*
*
.
.
.
7/8
22
.
.
*
*
*
*
*
.
.
.
3/4
19
.
.
*
*
*
*
*
.
.
.
5/8
16
.
.
.
*
*
*
*
.
.
.
1/2
12.7
.
.
.
*
*
*
*
*
.
.
7/16
11
.
.
.
.
*
*
*
*
.
.
3/8
9.5
.
.
.
.
*
*
*
*
*
.
5/16
7.9
.
.
.
.
.
*
*
*
*
.
1/4
6.4
.
.
.
.
.
*
*
*
*
*
3/16
4.8
.
.
.
.
.
.
.
*
*
*
5/32
4
.
.
.
.
.
.
.
.
*
*
1/8
3.3
.
.
.
.
.
.
.
.
*
*
3/32
2.5
.
.
.
.
.
.
.
.
*
*
 
 
Porcentajes de área de cribado
 
CLARO DE LA MALLA
GRUESO DE ALAMBRE
AREA DE CRIBADO
PULGADAS
M/M
No.
PULGADAS
3" =
76
.
3/8"
79.0%
''
''
.
5/16"
82.0%
2 3/4 =
70
.
3/8"
77.4%
''
''
.
5/16"
80.6%
2 1/2 =
63.5
.
3/8"
75.6%
''
''
.
5/16"
79.0%
2" =
51
.
3/8"
70.9%
''
''
.
5/16"
74.8%
''
''
3
1/4"
79.0%
''
''
6
13/64"
83.2%
1 3/4 =
44
.
3/8"
67.8%
''
''
.
5/16"
71.9%
''
''
3
1/4"
76.6%
1 1/2" =
38
.
3/8"
64.0%
''
''
.
5/16"
68.5%
''
''
3
1/4"
73.4%
''
''
6
13/64"
78.0%
1 1/4" =
32
.
3/8"
59.2%
''
''
.
5/16"
64.0%
''
''
3
1/4"
69.4%
''
''
6
13/64"
75.1%
''
''
8
11/64"
78.4%
1" =
25
.
3/8"
52.9%
''
''
.
5/16"
58.0%
''
''
3
1/4"
64.0%
''
''
6
13/64"
70.4%
''
''
8
11/64"
74.0%
''
''
10
1/8"
77.6%
7/8" =
22
.
5/16"
54.3%
''
''
3
1/4"
60.5%
''
''
6
13/64"
65.3%
''
''
8
11/64"
71.2%
''
''
10
1/8"
75.1%
 
 
CLARO DE LA MALLA
GRUESO DE ALAMBRE
AREA DE CRIBADO
PULGADAS
M/M
No.
PULGADAS
3/4" =
19
.
5/16"
49.8%
''
''
3
1/4"
56.3%
''
''
6
13/64"
63.4%
''
''
8
11/64"
67.6%
''
''
10
1/8"
71.8%
5/8" =
16
6
13/64"
58.5%
''
''
8
11/64"
63.1%
''
''
10
1/8"
67.6%
1/2"
12.7
6
13/64"
52.2%
''
''
8
11/64"
57.1%
''
''
10
1/8"
62.0%
''
''
12
7/64"
68.3%
7/16"
11
8
11/64"
53.2%
''
''
10
1/8"
58.4%
''
''
12
7/64"
65.0%
''
''
14
5/64"
71.5%
''
''
16
1/16"
76.4%
3/8"
9.5
10
1/8"
54.1%
''
''
12
7/64"
61.0%
''
''
14
5/64"
67.9%
''
''
16
1/16"
73.3%
5/16"
7.9
10
1/8"
48.8%
''
''
12
7/64"
56.0%
''
''
14
5/64"
63.4%
''
''
16
1/16"
69.3%
1/4"
6
12
7/64"
49.6%
''
''
14
5/64"
57.4%
''
''
16
1/16"
63.8%
3/16"
4.8
12
7/64"
41.1%
''
''
14
5/64"
49.1%
''
''
16
1/16"
56.0%
5/32"
4
14
5/64"
40.8%
1/8"
3
16
1/16"
51.2%
3/16" 2.5 16 1/16"  
 
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