螺纹基本尺寸对照表文档格式.docx
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螺纹基本尺寸对照表文档格式.docx
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20.955
19.793
18.631
-0.142
-0.284
G5/8″
22.911
21.749
20.587
G3/4″
26.441
25.279
24.117
+0.180
+0.640
G1″×
11
33.249
31.770
30.291
-0.180
-0.360
G1.1/4″
41.910
40.431
38.952
G1.1/2″
47.803
46.324
44.854
G2″×
59.614
58.135
56.656
+0.217
G2.1/2
”X11
75.184
73.705
72.226
-0.217
-0.434
G3”
X11
87.884
86.405
84.926
G3.1/2
100.330
98.851
97.372
英制锥管螺纹基本尺寸及公差(牙形角55o)BSPT
基面上的直径
基准长度
有效螺纹长度
圆锥内螺纹基面轴向位移偏差(±
mm)
基本
最大
最小
R1/8″×
4.0
4.9
3.1
6.5
7.4
5.6
1.1
R1/4″×
6.0
7.3
4.7
9.7
11.0
8.4
1.7
R3/8″×
6.4
7.7
5.1
10.1
11.4
8.8
R1/2″×
8.2
10.0
13.2
15.0
2.3
R3/4″×
9.5
11.3
14.5
16.3
12.7
R1″×
10.4
8.1
16.8
19.1
2.9
R1.1/4″×
21.4
R1.1/2″×
44.845
R2″×
15.9
18.2
13.6
23.4
25.7
21.1
R2.1/2”X11
17.5
21.0
14.0
26.7
30.2
23.2
3.5
R3”X11
20.6
24.1
17.1
29.8
33.3
26.3
R3.1/2”X11
22.2
18.7
31.4
34.9
27.9
美制管螺纹基本尺寸及公差(牙形角60o)UN(F)
公差等级
2A
2B
JIC螺纹
7/16″×
20UNF
11.079
10.874
10.254
10.147
9.568
10.033
10.287
10.424
11.113
1/2″×
12.667
12.461
11.841
11.732
11.156
11.328
11.608
11.875
12.017
9/16″×
18UNF
14.252
14.031
13.335
13.221
12.573
12.751
13.081
13.371
13.52
14.288
3/4″×
16UNF
19.012
18.773
17.981
17.854
17.12
17.323
17.678
18.019
18.184
19.05
7/8″×
14UNF
22.184
21.923
21.006
20.869
20.025
20.269
20.676
21.046
21.224
22.225
1-1/16″×
12UN
26.944
26.655
25.57
25.425
24.425
24.689
25.146
25.613
25.801
26.988
1-5/16″×
33.294
33.005
31.92
31.773
30.775
31.039
31.496
31.963
32.154
33.338
1-5/8″×
41.229
40.94
39.885
39.705
38.71
38.989
39.446
39.901
40.094
41.275
1-7/8″×
47.579
47.29
46.205
46.053
45.06
45.339
45.796
46.251
46.449
47.625
2-1/2″×
63.452
63.162
62.078
61.92
60.932
61.214
61.671
62.126
62.332
63.5
ORFS螺纹
11/16″×
16UN
17.427
17.188
16.396
16.274
15.535
15.748
16.104
16.431
16.589
17.463
13/16″×
20.599
20.361
19.568
19.444
18.707
18.923
19.279
19.606
19.766
20.638
1″×
25.357
25.095
24.178
24.036
23.195
23.444
23.825
24.221
24.407
25.4
1-3/16″×
30.119
29.83
28.745
28.598
27.6
27.864
28.321
28.788
28.979
30.163
1-7/16″×
36.467
36.177
35.093
34.943
33.947
34.214
34.671
35.138
35.331
36.513
1-11/16″×
42.817
42.527
41.443
41.29
40.297
40.564
41.021
41.488
41.686
42.863
2″×
50.754
50.465
49.38
49.225
48.235
48.514
48.971
49.426
49.627
50.8
SAE螺纹
5/8″×
15.839
15.618
14.923
14.803
14.161
14.351
14.681
14.958
15.11
15.875
14UN
26.947
26.683
25.743
25.608
24.74
24.968
25.375
25.783
25.961
26.987
其它美制螺纹
14.013
13.101
12.36
12.929
13.256
13.411
22.182
21.892
20.808
20.668
19.662
19.939
20.396
20.851
21.034
2-1/4″×
57.104
56.815
55.73
55.575
54.585
54.864
55.321
55.776
55.976
57.1
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- 关 键 词:
- 螺纹 基本 尺寸 对照
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