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標準
GB/T3639------中國國家標準
GB/T8713------中國國家標準
用途
用于機械結構、液壓結構、液壓和氣動缸筒的制造.
主要生產鋼管牌號
10、20、35、45等
化學成份、機械性能--化學成分參照相應的國家標準或國外標準
|
牌號 |
交貨狀態 | |||||
|
冷加工/硬(Y) |
冷加工/軟(R) |
消除應力退火(T) | ||||
|
抗拉伸強度(MPa) |
伸長率(%) |
抗拉伸強度(MPa) |
伸長率(%) |
抗拉伸強度(MPa) |
伸長率(%) | |
|
≥ | ||||||
|
10 |
412 |
6 |
373 |
10 |
333 |
12 |
|
20 |
510 |
5 |
451 |
8 |
432 |
10 |
|
35 |
588 |
4 |
549 |
6 |
520 |
8 |
|
45 |
647 |
4 |
628 |
5 |
608 |
7 |
|
外徑 |
壁厚 |
單重kg/m |
外徑 |
壁厚 |
單重 |
外徑 |
壁厚 |
單重kg/m |
|
36 |
3 |
2.44 |
114 |
12 |
30.18 |
170 |
5 |
20.34 |
|
40 |
5 |
4.32 |
108 |
4 |
10.26 |
172 |
6 |
24.56 |
|
45 |
2.5 |
2.62 |
114 |
7 |
18.47 |
180 |
10 |
41.92 |
|
51 |
5.5 |
6.17 |
121 |
10.5 |
28.61 |
184 |
12 |
50.90 |
|
55 |
2.5 |
3.24 |
127 |
13.5 |
37.79 |
194 |
17 |
74.20 |
|
60 |
5 |
6.78 |
119 |
4.5 |
12.71 |
192 |
6 |
27.52 |
|
63 |
6.5 |
9.06 |
133 |
11.5 |
34.46 |
194 |
7 |
32.28 |
|
65 |
7.5 |
10.63 |
140 |
15 |
46.42 |
203 |
11.5 |
54.31 |
|
70 |
10 |
14.80 |
140 |
10 |
32.06 |
219 |
19.5 |
95.93 |
|
65 |
5 |
7.40 |
146 |
13 |
42.64 |
216 |
8 |
41.03 |
|
70 |
7.5 |
11.56 |
135 |
5 |
16.03 |
219 |
9.5 |
49.08 |
|
70 |
5 |
8.01 |
140 |
7.5 |
24.51 |
240 |
20 |
108.501 |
|
75 |
7.5 |
12.48 |
152 |
13.5 |
46.11 |
245 |
22.5 |
123.45 |
|
69 |
3 |
4.88 |
159 |
17 |
59.53 |
245 |
12.5 |
71.67 |
|
72 |
4.5 |
7.49 |
152 |
6 |
21.60 |
273 |
26.5 |
161.09 |
|
76 |
6.5 |
11.14 |
159 |
9.5 |
35.00 |
270 |
10 |
64.12 |
|
83 |
10 |
18.00 |
163 |
11.5 |
42.96 |
299 |
24.5 |
165.80 |
|
83 |
6.5 |
12.26 |
168 |
14 |
53.17 |
325 |
22.5 |
167.84 |
|
86 |
8 |
15.39 |
178 |
19 |
74.50 |
325 |
12.5 |
96.33 |
|
86 |
3 |
6.14 |
180 |
20 |
78.91 |
351 |
25.5 |
204.68 |
|
95 |
7.5 |
16.18 |
160 |
5 |
19.11 |
377 |
38.6 |
321.38 |
|
102 |
11 |
24.68 |
163 |
6.5 |
25.09 |
351 |
15.5 |
128.24 |
|
108 |
14 |
32.45 |
168 |
9 |
35.29 |
377 |
28.5 |
224.93 |
|
103 |
6.5 |
15.47 |
178 |
14 |
56.60 |
426 |
13 |
132.40 |
|
108 |
9 |
21.97 |
180 |
15 |
61.03 |
480 |
40 |
434.02 |
20#45#精密無縫鋼管力學性能
|
鋼種 |
力學性能 |
冷拔(軋)管 |
金切管 |
|
20# |
抗拉強度σbN/mm2 伸長率δ5% |
≥510 |
≥390 |
|
≥5 |
≥20 | ||
|
45# |
≥647 |
≥590 | |
|
≥4 |
≥4 |
|
加工形式 |
缸徑 |
長度 |
直線度 |
尺寸精度 |
內孔粗糙度 |
|
冷軋 |
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 |
|
滾壓 |
40-400 |
≤7M |
H8 |
0.4 |
尺寸公差
|
尺寸公差(壁厚偏差±5%) | |||
|
內徑尺寸 |
H8 |
H9 |
H10 |
|
30 |
+0.033 0 |
+0.052 0 |
+0.084 0 |
|
＞30-50 |
+0.039 0 |
+0.062 0 |
+0.100 0 |
|
＞50-80 |
+0.046 0 |
+0.074 0 |
+0.120 0 |
|
＞80-120 |
+0.054 0 |
+0.087 0 |
+0.140 0 |
|
＞120-180 |
+0.063 0 |
+0.100 0 |
+0.160 0 |
|
＞180-250 |
+0.072 0 |
+0.115 0 |
+0.185 0 |
|
＞250-315 |
+0.081 0 |
+0.130 0 |
+0.210 0 |
|
＞315-400 |
+0.089 0 |
+0.140 0 |
+0.230 0 |
| ||