精密无缝钢管
加工形式 |
缸径 |
长度 |
直线度 |
尺寸精度 |
内孔粗糙度 |
冷轧 |
30-100 |
≤12M |
0.3-1.0
|
H8-H10 |
0.4-1.6 |
冷拔 |
30-250 |
≤12M |
H8-H10 |
0.8-1.6 |
|
珩磨 |
40-500 |
≤12M |
1000 |
H8-H9 |
0.4-0.8 |
滚压 |
50-250 |
≤7M |
H8 |
0.4 |
力学性能
钢种 |
项目 |
冷拔(轧)管 |
金切管 |
20 |
抗拉强度σbN/mm2 |
≥510 |
≥390 |
伸长率δ5% |
≥ |
≥20 |
|
45 |
抗拉强度σbN/mm2 |
≥647 |
≥590 |
伸长率δ5% |
≥4 |
≥4 |
|
16Mn |
抗拉强度σbN/mm2 |
≥640 |
|
伸长率δ5% |
≥10 |
|
|
27SiMn |
抗拉强度σbN/mm2 |
≥840 |
|
伸长率δ5% |
≥7.5 |
|
尺寸公差
内径尺寸 |
内径偏差 |
壁厚偏差 |
||
H8 |
H9 |
H10 |
||
30 |
+0.0330 |
+0.0520 |
+0.0840 |
±5%
|
>30-50 |
+0.0390 |
+0.0620 |
+0.1000 |
|
>50-80 |
+0.0460 |
+0.0740 |
+0.1200 |
|
>80-120 |
+0.0540 |
+0.0870 |
+0.1400 |
|
>120-180 |
+0.0630 |
+0.1000 |
+0.1600 |
|
>180-250 |
+0.0720 |
+0.1150 |
+0.1850 |
|
>250-315 |
+0.0810 |
+0.1300 |
+0.2100 |
|
>315-400 |
+0.0890 |
+0.1400 |
+0.2300 |
标准规格
内径mm |
外径mm |
壁厚mm |
重量 kg/m |
内径mm |
外径mm |
壁厚mm |
重量 kg/m |
内径mm |
外径mm |
壁厚mm |
重量 kg/m |
30 |
36 |
3 |
2.44 |
90 |
114 |
12 |
30.18 |
160 |
170 |
5 |
20.34 |
40 |
50 |
5 |
5.55 |
100 |
108 |
3.5 |
8.93 |
160 |
172 |
6 |
24.56 |
40 |
55 |
7.5 |
8.79 |
100 |
114 |
7 |
18.74 |
160 |
180 |
10 |
41.92 |
40 |
58 |
9 |
10.88 |
100 |
121 |
10.5 |
28.61 |
160 |
184 |
12 |
50.90 |
50 |
60 |
5 |
6.78 |
100 |
127 |
13.5 |
37.79 |
160 |
194 |
17 |
74.20 |
50 |
63 |
6.5 |
9.05 |
110 |
120 |
5 |
14.18 |
180 |
192 |
6 |
27.52 |
50 |
65 |
7.5 |
10.63 |
110 |
126 |
8 |
23.28 |
180 |
194 |
7 |
32.28 |
50 |
70 |
10 |
14.80 |
110 |
133 |
11.5 |
34.46 |
180 |
200 |
10 |
46.86 |
55 |
65 |
5 |
7.40 |
110 |
140 |
15 |
46.64 |
180 |
203 |
11.5 |
54.31 |
55 |
70 |
7.5 |
11.56 |
120 |
140 |
10 |
32.06 |
180 |
219 |
19.5 |
95.93 |
60 |
70 |
5 |
8.01 |
120 |
146 |
13 |
42.64 |
200 |
216 |
8 |
41.03 |
60 |
75 |
7.5 |
12.48 |
125 |
135 |
5 |
16.03 |
200 |
219 |
9.5 |
49.08 |
63 |
69 |
3 |
4.88 |
125 |
140 |
7.5 |
25.51 |
200 |
232 |
16 |
85.22 |
63 |
73 |
5 |
8.38 |
125 |
152 |
13.5 |
46.11 |
200 |
245 |
22.5 |
123.45 |
63 |
76 |
6.5 |
11.14 |
125 |
159 |
17 |
59.53 |
220 |
250 |
15 |
86.93 |
63 |
83 |
10 |
18.00 |
140 |
152 |
6 |
21.60 |
220 |
273 |
26.5 |
161.09 |
70 |
83 |
6.5 |
12.26 |
140 |
159 |
9.5 |
35.00 |
250 |
270 |
10 |
64.12 |
70 |
86 |
8 |
15.39 |
140 |
163 |
11.5 |
42.96 |
250 |
299 |
24.5 |
165.80 |
80 |
86 |
3 |
6.14 |
140 |
168 |
14 |
53.17 |
280 |
325 |
22.5 |
167.84 |
80 |
90 |
5 |
10.48 |
140 |
178 |
19 |
74.50 |
300 |
325 |
12.5 |
96.33 |
80 |
95 |
7.5 |
16.18 |
140 |
180 |
20 |
78.91 |
300 |
351 |
25.5 |
204.68 |
80 |
102 |
11 |
24.68 |
150 |
160 |
5 |
19.11 |
300 |
377 |
38.5 |
321.38 |
80 |
108 |
14 |
32.45 |
150 |
163 |
6.5 |
25.09 |
320 |
351 |
15.5 |
128.24 |
90 |
100 |
5 |
11.71 |
150 |
170 |
10 |
39.46 |
320 |
377 |
28.5 |
224.93 |
90 |
105 |
7 |
18.03 |
150 |
175 |
12.5 |
50.09 |
400 |
426 |
13 |
132.40 |
90 |
108 |
9 |
21.97 |
150 |
180 |
15 |
61.03 |
400 |
480 |
40 |
432.02 |
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