目数与微米的换算，各类型的网目数与微米之间
使用下面的表在微米，网格，毫米和英寸单位之间转换。
网目可以有一个规格，如“聚酯65/37”。这将是一个65微米见方的孔和37微米的宽度使筛网
1，目数概念：目数是指每英寸（25.4mm) 长度下，开孔的个数
2，目数与微米之间的换算关系 μm=25.4/目数-丝径
3，经验换算公式：μm*目数=15000
4，目数计算上，线径会影响孔径的计算 如 以100目尼龙网为例：孔径（μm）=25.4/100*1000 -丝径
此时孔径（μm）=254μm - 丝径 （此时标准尼龙网丝径为94微米，查表）
|
Alternate" designations are derived from ASTM specification E-11-95
|
|
Sieve Designation
|
Nominal Sieve Opening
|
Nominal Wire Diameter
|
Suggested Screen
|
|
Standard
|
Alternate
|
mm
|
inches
|
mm
|
inches
|
|
|
125 mm
|
5"
|
125
|
4.921"
|
8
|
0.3149
|
5" OP
|
|
106 mm
|
4.24"
|
106
|
4.173"
|
6.4
|
0.2519
|
4-1/4" OP
|
|
100 mm
|
4"
|
100
|
3.937"
|
6.3
|
0.248
|
4" OP
|
|
90 mm
|
3-1/2"
|
90
|
3.543"
|
6.08
|
0.2393
|
3-1/2" OP
|
|
75 mm
|
3"
|
75
|
2.952"
|
5.8
|
0.2283
|
3" OP
|
|
63 mm
|
2-1/2"
|
63
|
2.480"
|
5.5
|
0.2165
|
2-1/2" OP
|
|
53 mm
|
2.12"
|
53
|
2.086"
|
5.15
|
0.2027
|
2-1/8" OP
|
|
50 mm
|
2"
|
50
|
1.968"
|
5.05
|
0.1988
|
2" OP
|
|
|
ieve Designation
|
Nominal Sieve Opening
|
Nominal Wire Diameter
|
Suggested Screen
|
|
Standard
|
Alternate
|
mm
|
inches
|
mm
|
inches
|
|
|
45 mm
|
1-3/4"
|
45
|
1.771"
|
4.85
|
0.1909
|
1-3/4" OP
|
|
37.5 mm
|
1-1/2"
|
37.5
|
1.476"
|
4.59
|
0.1807
|
1-1/2" OP
|
|
31.5 mm
|
1-1/4"
|
31.5
|
1.240"
|
4.23
|
0.1665
|
1-1/4" OP
|
|
26.5 mm
|
1.06"
|
26.5
|
1.043"
|
3.9
|
0.1535
|
1-1/16" OP
|
|
25.0 mm
|
1"
|
25
|
0.984"
|
3.8
|
0.1496
|
1" OP
|
|
22.4 mm
|
7/8"
|
22.4
|
0.881"
|
3.5
|
0.1377
|
7/8" OP
|
|
19.0 mm
|
3/4"
|
19
|
0.748"
|
3.3
|
0.1299
|
3/4" OP
|
|
16.0 mm
|
5/8"
|
16
|
0.629"
|
3
|
0.1181
|
5/8" OP
|
|
|
Sieve Designation
|
Nominal Sieve Opening
|
Nominal Wire Diameter
|
Suggested Screen
|
|
Standard
|
Alternate
|
mm
|
inches
|
mm
|
inches
|
|
|
13.2 mm
|
.530"
|
13.2
|
0.519"
|
2.75
|
0.1082
|
17/32" OP
|
|
12.5 mm
|
1/2" **
|
12.5
|
0.492"
|
2.67
|
0.1051
|
1/2" OP
|
|
11.2 mm
|
7/16"
|
11.2
|
0.440"
|
2.45
|
0.0964
|
7/16" OP
|
|
9.5 mm
|
3/8"
|
9.5
|
0.374"
|
2.27
|
0.0893
|
3/8" OP
|
|
8.0 mm
|
5/16"
|
8
|
0.314"
|
2.07
|
0.0814
|
2-1/2 Mesh
|
|
6.7 mm
|
.265"
|
6.7
|
0.263"
|
1.87
|
0.0736
|
3 Mesh
|
|
6.3 mm
|
1/4" **
|
6.3
|
0.248"
|
1.82
|
0.0716
|
3-1/4 Mesh
|
|
5.6 mm
|
No. 3-1/2
|
5.6
|
0.220"
|
1.68
|
0.0661
|
3-1/2 Mesh
|
|
**These sieve specifications are not in the standard series, they are included due to popular usage.
|
|
|
Sieve Designation
|
Nominal Sieve Opening
|
Nominal Wire Diameter
|
Suggested Screen
|
|
Standard
|
Alternate
|
mm
|
inches
|
mm
|
inches
|
|
|
4.75 mm
|
No. 4
|
4.75
|
0.187"
|
1.54
|
0.0606
|
4 Mesh
|
|
4.0 mm
|
No. 5
|
4
|
0.157"
|
1.37
|
0.0539
|
5 Mesh
|
|
3.35 mm
|
No. 6
|
3.35
|
0.131"
|
1.23
|
0.0484
|
6 Mesh
|
|
2.80 mm
|
No. 7
|
2.8
|
0.131"
|
1.1
|
0.0433
|
7 Mesh
|
|
2.36 mm
|
No. 8
|
2.36
|
0.093"
|
1
|
0.0393
|
8 Mesh
|
|
2.00 mm
|
No. 10
|
2
|
0.078"
|
0.9
|
0.0354
|
9 Mesh
|
|
1.70 mm
|
No. 12
|
1.7
|
0.066"
|
0.81
|
0.0318
|
10 Mesh
|
|
1.40 mm
|
No. 14
|
1.4
|
0.055"
|
0.72
|
0.0285
|
12 Mesh
|
|
|
Sieve Designation
|
Nominal Sieve Opening
|
Nominal Wire Diameter
|
Suggested Screen
|
|
Standard
|
Alternate
|
mm
|
inches
|
mm
|
inches
|
|
|
1.18 mm
|
No. 16
|
1.18
|
0.0464"
|
0.65
|
0.0255
|
14 Mesh
|
|
1.00 mm
|
No. 18
|
1
|
0.0393"
|
0.58
|
0.0228
|
16 Mesh
|
|
850 µm
|
No. 20
|
0.85
|
0.0334"
|
0.51
|
0.02
|
20 Mesh
|
|
710 µm
|
No. 25
|
0.71
|
0.0279"
|
0.45
|
0.0177
|
24 Mesh
|
|
600 µm
|
No. 30
|
0.6
|
0.0236"
|
0.39
|
0.0153
|
28 Mesh
|
|
500 µm
|
No. 35
|
0.5
|
0.0196"
|
0.34
|
0.0133
|
32 Mesh
|
|
425 µm
|
No. 40
|
0.425
|
0.0167"
|
0.29
|
0.0114
|
35 Mesh
|
|
355 µm
|
No. 45
|
0.355
|
0.0139"
|
0.247
|
0.0097
|
42 Mesh
|
|
Sieve Designation
|
Nominal Sieve Opening
|
Nominal Wire Diameter
|
Suggested Screen
|
|
Standard
|
Alternate
|
mm
|
inches
|
mm
|
inches
|
|
|
300 µm
|
No. 50
|
0.3
|
0.0118"
|
0.215
|
0.0084
|
48 Mesh
|
|
250 µm
|
No. 60
|
0.25
|
0.0098"
|
0.18
|
0.007
|
60 Mesh
|
|
212 µm
|
No. 70
|
0.212
|
0.0083"
|
0.152
|
0.0059
|
65 Mesh
|
|
180 µm
|
No. 80
|
0.18
|
0.0070"
|
0.131
|
0.0051
|
80 Mesh
|
|
150 µm
|
No. 100
|
0.15
|
0.0059"
|
0.11
|
0.0043
|
100 Mesh
|
|
125 µm
|
No. 120
|
0.125
|
0.0049"
|
0.091
|
0.0035
|
115 Mesh
|
|
106 µm
|
No. 140
|
0.106
|
0.0041"
|
0.076
|
0.0029
|
100 Mesh
|
|
90 µm
|
No. 170
|
0.09
|
0.0035"
|
0.064
|
0.0025
|
170 Mesh
|
|
|
|
|
|
|
|
|
|
Sieve Designation
|
Nominal Sieve Opening
|
Nominal Wire Diameter
|
Suggested Screen
|
|
Standard
|
Alternate
|
mm
|
inches
|
mm
|
inches
|
|
|
75 µm
|
No. 200
|
0.075
|
0.0029"
|
0.053
|
0.002
|
200 Mesh
|
|
63 µm
|
No. 230
|
0.063
|
0.0024"
|
0.044
|
0.0017
|
250 Mesh
|
|
53 µm
|
No. 270
|
0.053
|
0.0020"
|
0.037
|
0.0014
|
270 Mesh
|
|
45 µm
|
No. 325
|
0.045
|
0.0017"
|
0.03
|
0.0012
|
325 Mesh
|
|
38 µm
|
No. 400
|
0.038
|
0.0015"
|
0.025
|
0.001
|
400 Mesh
|
|
32 µm
|
No. 450
|
0.032
|
0.0012"
|
0.0011
|
0.0004
|
|
|
25 µm
|
No. 500
|
0.025
|
0.00098"
|
0.001
|
0.000039
|
|
|
20 µm
|
No. 635
|
0.02
|
0.00078"
|
0.0008
|
0.000031
|
|
|
有些客户使用尼龙滤布，或者是聚酯滤布过滤，
|
尼龙网，聚酯，聚丙烯滤网规格示意
|
|
|
|
材质
|
目数
|
开孔面积
|
线径
|
线径
|
孔径
|
孔径
|
开孔率
|
微米
|
|
|
|
|
inch
|
µm
|
size inch
|
µm
|
|
Rating
|
|
Nylon
|
50
|
50 x 50
|
0.0085
|
216
|
0.0118
|
300
|
34%
|
300
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Nylon
|
100
|
104 x 104
|
0.0037
|
94
|
0.0059
|
150
|
38%
|
150
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Nylon
|
150
|
145 x 145
|
0.003
|
76
|
0.0039
|
100
|
32%
|
100
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Nylon
|
200
|
198 x 198
|
0.0015
|
38
|
0.0035
|
89
|
49%
|
80
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Nylon
|
300
|
307 x 307
|
0.0013
|
33
|
0.002
|
51
|
37%
|
37
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Nylon
|
400
|
371 x 371
|
0.0016
|
41
|
0.0011
|
28
|
17%
|
28
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Polyester
|
50
|
45.7 x 45.7
|
0.0074
|
188
|
0.0148
|
376
|
46%
|
375
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Polyester
|
100
|
109 x 109
|
0.0034
|
86
|
0.0059
|
150
|
41%
|
150
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Polyester
|
150
|
145 x 145
|
0.003
|
76
|
0.0039
|
100
|
32%
|
100
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Polyester
|
300
|
320 x 320
|
0.0016
|
41
|
0.0016
|
41
|
25%
|
40
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Polyester
|
400
|
271 x 371
|
0.0017
|
43
|
0.0011
|
28
|
16%
|
27
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Polypropylene
|
20
|
20 x 20
|
0.0114
|
290
|
0.0374
|
950
|
45%
|
840
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Polypropylene
|
27
|
27 x 27
|
0.0114
|
290
|
0.0256
|
650
|
38.50%
|
590
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Polypropylene
|
35
|
35 x 35
|
0.0114
|
290
|
0.0171
|
435
|
35.30%
|
420
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Polypropylene
|
50
|
56 x 56
|
0.0085
|
216
|
0.0098
|
249
|
29%
|
250
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Polypropylene
|
100
|
98 x 98
|
0.0043
|
109
|
0.0059
|
150
|
34%
|
150
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Fluorocarbon
|
20
|
23 x 23
|
0.0108
|
275
|
0.0326
|
829
|
57%
|
800
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Fluorocarbon
|
50
|
51 x 51
|
0.0085
|
215
|
0.0111
|
283
|
36%
|
250
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Gauge to Inches to Millimeters Conversion Table
|
|
|
|
|
|
B & S
|
Inch
|
Millimeter
|
Inch
|
|
B & S
|
Inch
|
Millimeter
|
Inch
|
|
Gauge
|
(Decimal)
|
(mm)
|
(Fraction)
|
|
Gauge
|
(Decimal)
|
(mm)
|
(Fraction)
|
|
1
|
0.289
|
7.348
|
.
|
|
17
|
0.045
|
1.149
|
.
|
|
2
|
0.258
|
6.543
|
.
|
|
18
|
0.04
|
1.024
|
.
|
|
.
|
0.25
|
6.35
|
1/4
|
|
19
|
0.036
|
0.912
|
.
|
|
.
|
0.234
|
5.953
|
15/64
|
|
20
|
0.032
|
0.812
|
.
|
|
3
|
0.229
|
5.827
|
.
|
|
.
|
0.031
|
0.795
|
1/32
|
|
.
|
0.219
|
5.556
|
7/32
|
|
21
|
0.028
|
0.723
|
.
|
|
4
|
0.204
|
5.189
|
.
|
|
22
|
0.025
|
0.644
|
.
|
|
.
|
0.203
|
5.154
|
13/64
|
|
23
|
0.023
|
0.573
|
.
|
|
.
|
0.188
|
4.762
|
3/16
|
|
24
|
0.02
|
0.511
|
.
|
|
5
|
0.182
|
4.621
|
.
|
|
25
|
0.018
|
0.455
|
.
|
|
.
|
0.172
|
4.366
|
11/64
|
|
26
|
0.016
|
0.405
|
.
|
|
6
|
0.162
|
4.115
|
.
|
|
.
|
0.016
|
0.396
|
1/64
|
|
.
|
0.156
|
3.969
|
5/32
|
|
27
|
0.014
|
0.36
|
.
|
|
7
|
0.144
|
3.664
|
.
|
|
28
|
0.013
|
0.321
|
.
|
|
.
|
0.141
|
3.572
|
11/64
|
|
29
|
0.011
|
0.286
|
.
|
|
8
|
0.128
|
3.263
|
.
|
|
30
|
0.01
|
0.255
|
.
|
|
.
|
0.125
|
3.175
|
1/8
|
|
31
|
0.0089
|
0.226
|
.
|
|
9
|
0.114
|
2.906
|
.
|
|
32
|
0.008
|
0.2
|
.
|
|
.
|
0.109
|
2.778
|
7/64
|
|
33
|
0.0071
|
0.18
|
.
|
|
10
|
0.102
|
2.588
|
.
|
|
34
|
0.0063
|
0.16
|
.
|
|
.
|
0.094
|
2.381
|
3/32
|
|
35
|
0.0056
|
0.142
|
.
|
|
11
|
0.091
|
2.304
|
.
|
|
36
|
0.005
|
0.13
|
.
|
|
12
|
0.081
|
2.052
|
.
|
|
37
|
0.0045
|
0.114
|
.
|
|
.
|
0.078
|
1.984
|
5/64
|
|
38
|
0.004
|
0.1
|
.
|
|
13
|
0.072
|
1.828
|
.
|
|
.
|
.
|
.
|
.
|
|
14
|
0.064
|
1.628
|
.
|
|
.
|
.
|
.
|
.
|
|
.
|
0.063
|
1.588
|
1/16
|
|
.
|
.
|
.
|
.
|
|
15
|
0.057
|
1.449
|
.
|
|
.
|
.
|
.
|
.
|
|
16
|
0.051
|
1.291
|
.
|
|
.
|
.
|
.
|
.
|
|
.
|
0.047
|
1.191
|
3/64
|
|
.
|
.
|
.
|
.
|
|
化学相容性尼龙，聚丙烯，聚酯材料
Mesh suitability depends on the application temperature and pH. Nylon is more temperature resistant, while polyethylene is more acid resistant.
