螺旋鋼管是以帶鋼卷板為原材料，經(jīng)常溫擠壓成型，以自動雙絲雙面埋弧焊工藝焊接而成的螺旋縫鋼管。螺旋鋼管將帶鋼送入焊管機組，經(jīng)多道軋輥滾壓，帶鋼逐漸卷起，形成有開口間隙的圓形管坯，調(diào)整擠壓輥的壓下量，使焊縫間隙控制在1~3mm，并使焊口兩端齊平。
|
公稱外徑
nominal O.D mm |
公稱壁厚 Nominal Wall Thickness mm
|
|||||||||||||||
|
5.0
|
5.5
|
6.0
|
7.0
|
8.0
|
9.0
|
10.0
|
11.0
|
12.0
|
13.0
|
14.0
|
15.0
|
16.0
|
18.0
|
20.0
|
22.0
|
|
|
273
|
33.04
|
36.28
|
39.51
|
45.92
|
||||||||||||
|
323.9
|
39.32
|
43.18
|
47.04
|
54.70
|
62.32
|
69.89
|
||||||||||
|
(325)
|
39.46
|
43.33
|
47.26
|
54.90
|
62.54
|
70.13
|
||||||||||
|
355.6
|
43.23
|
47.48
|
51.73
|
60.18
|
68.57
|
76.92
|
||||||||||
|
(377)
|
45.88
|
50.39
|
54.89
|
63.87
|
72.80
|
81.67
|
||||||||||
|
406.4
|
49.44
|
54.32
|
59.24
|
68.94
|
78.60
|
88.20
|
97.75
|
|||||||||
|
(426)
|
51.91
|
57.03
|
62.14
|
72.33
|
82.46
|
92.55
|
102.59
|
|||||||||
|
457
|
55.73
|
61.24
|
66.73
|
77.69
|
88.58
|
99.43
|
110.23
|
120.98
|
131.60
|
142.34
|
||||||
|
508
|
74.28
|
86.48
|
98.64
|
110.75
|
122.81
|
134.82
|
146.78
|
158.69
|
||||||||
|
(529)
|
77.38
|
90.11
|
102.78
|
115.41
|
127.99
|
140.51
|
152.99
|
165.42
|
||||||||
|
(559)
|
81.82
|
95.29
|
108.70
|
122.07
|
135.38
|
148.65
|
161.87
|
175.04
|
||||||||
|
610
|
89.37
|
104.09
|
118.76
|
133.39
|
147.96
|
162.48
|
176.96
|
191.39
|
||||||||
|
(630)
|
92.33
|
107.54
|
122.71
|
137.82
|
152.89
|
167.91
|
182.88
|
197.80
|
||||||||
|
(660)
|
96.77
|
112.72
|
128.63
|
144.48
|
160.29
|
176.05
|
191.76
|
207.42
|
||||||||
|
711
|
104.31
|
121.52
|
138.69
|
155.80
|
172.87
|
189.88
|
206.85
|
223.76
|
||||||||
|
(720)
|
105.64
|
123.08
|
140.46
|
157.80
|
175.09
|
192.32
|
209.51
|
226.65
|
||||||||
|
(762)
|
130.33
|
148.75
|
167.12
|
185.44
|
203.72
|
221.94
|
240.11
|
258.24
|
||||||||
|
813
|
139.13
|
158.81
|
178.44
|
198.02
|
217.55
|
237.03
|
256.46
|
278.88
|
||||||||
|
(820)
|
140.34
|
160.19
|
179.99
|
199.75
|
219.45
|
239.10
|
258.71
|
276.26
|
297.77
|
317.23
|
256.01
|
394.58
|
432.96
|
|||
|
914
|
178.74
|
200.06
|
222.93
|
244.95
|
266.92
|
288.84
|
310.72
|
332.54
|
354.31
|
397.74
|
440.95
|
483.96
|
||||
|
(920)
|
179.92
|
202.19
|
224.41
|
246.58
|
268.70
|
290.77
|
312.79
|
334.76
|
356.68
|
400.40
|
443.91
|
486.13
|
||||
|
1016
|
198.86
|
223.49
|
248.08
|
272.62
|
297.10
|
321.54
|
345.93
|
370.27
|
394.56
|
443.02
|
491.26
|
539.30
|
||||
|
(1020)
|
199.65
|
224.38
|
249.07
|
273.70
|
298.39
|
322.82
|
347.31
|
371.75
|
396.14
|
44.79
|
493.23
|
541.47
|
||||
|
1220
|
296.39
|
327.95
|
357.47
|
386.94
|
416.36
|
445.73
|
475.58
|
533.58
|
591.88
|
649.98
|
||||||
|
1420
|
347.71
|
362.21
|
416.66
|
451.06
|
485.41
|
519.71
|
553.96
|
622.36
|
690.52
|
758.49
|
||||||
|
1620
|
397.03
|
436.46
|
475.84
|
515.17
|
554.46
|
593.60
|
632.87
|
711.14
|
789.17
|
867.00
|
||||||
|
1820
|
446.35
|
490.71
|
535.02
|
579.29
|
623.50
|
667.67
|
711.79
|
799.92
|
887.81
|
975.51
|
||||||
|
2020
|
495.67
|
544.96
|
594.21
|
643.40
|
692.55
|
741.65
|
796.70
|
888.70
|
986.46
|
1084.21
|
||||||
|
2220
|
544.99
|
599.21
|
653.39
|
707.52
|
761.60
|
815.63
|
869.61
|
977.48
|
1085.11
|
1192.53
|
||||||
|
2420
|
594.34
|
635.5
|
712.62
|
771.62
|
830.20
|
889.66
|
948
|
|||||||||
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