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管了是由外径和厚壁组成的，
管子规格 管子表示方法
|
外径(毫米) |
壁 厚（毫米） | ||||||||
|
30 |
32 |
(34) |
(35) |
36 |
(38) |
40 |
(42) |
(45) | |
|
理 论 重 量 （公斤/米） | |||||||||
|
127 |
71.76 |
- |
- |
- |
- |
- |
- |
- |
- |
|
133 |
76.20 |
79.71 |
- |
- |
- |
- |
- |
- |
- |
|
140 |
81.38 |
85.23 |
88.88 |
90.63 |
92.33 |
- |
- |
- |
- |
|
146 |
85.82 |
89.97 |
93.91 |
95.81 |
97.66 |
- |
- |
- |
- |
|
152 |
90.26 |
94.70 |
98.94 |
100.99 |
102.99 |
- |
- |
- |
- |
|
159 |
95.44 |
100.22 |
104.81 |
107.03 |
109.20 |
- |
- |
- |
- |
|
168 |
102.10 |
107.33 |
112.36 |
114.80 |
117.19 |
121.83 |
126.27 |
130.51 |
136.50 |
|
180 |
110.98 |
116.80 |
122.42 |
125.16 |
127.85 |
133.07 |
138.10 |
142.94 |
149.82 |
|
194 |
121.33 |
127.85 |
134.16 |
137.24 |
140.27 |
146.19 |
151.91 |
157.44 |
165.36 |
|
203 |
127.99 |
134.94 |
141.70 |
145.00 |
148.26 |
154.62 |
160.78 |
166.75 |
175.33 |
|
219 |
139.83 |
147.57 |
155.12 |
158.82 |
162.47 |
169.62 |
176.58 |
183.33 |
193.10 |
|
245 |
159.07 |
168.09 |
176.92 |
181.26 |
185.55 |
193.99 |
202.22 |
210.26 |
221.95 |
|
273 |
179.78 |
190.19 |
200.40 |
205.43 |
210.41 |
220.23 |
229.85 |
239.27 |
253.03 |
