介紹
常用規格
20# 108*28 20 20# 168*28 20 20# 219*25 25 45# 152*35 15 45# 203*60 20
20# 108*30 25 20# 168*30 20 20# 219*28 25 45# 152*40 15 45# 219*20 60
20# 114*25 20 20# 168*32 20 20# 219*30 60 45# 152*45 10 45# 219*25 50
20# 114*28 25 20# 168*35 25 20# 219*32 30 45# 159*18 25 45# 219*28 35
20# 114*30 25 20# 168*40 15 20# 219*35 60 45# 159*28 15 45# 219*30 60
20# 114*32 20 20# 168*45 15 20# 219*38 30 45# 159*30 15 45# 219*32 50
20# 121*28 15 20# 168*50 20 20# 219*40 60 45# 159*32 15 45# 219*35 60
20# 121*30 25 20# 180*20 20 20# 219*45 30 45# 159*35 15 45# 219*40 40
20# 121*32 20 20# 180*25 20 20# 219*50 30 45# 159*40 15 45# 219*45 35
20# 121*35 25 20# 180*28 15 20# 219*55 30 45# 159*45 15 45# 219*50 30
20# 127*28 30 20# 168*35 25 20# 219*60 20 45# 168*22 25 45# 219*55 20
20# 127*30 25 20# 168*40 15 45# 102*25 20 45# 168*25 20 45# 219*60 25
無縫鋼管尺寸
偏差等級 | 標準化外徑允許偏差 |
D1 | ±1.5%,最小±0.75 mm |
D2 | ±1.0%。最小±0.50 mm |
D3 | ±0.75%.最小±0.30 mm |
D4 | ±0.50%。最小±0.10 mm |
抗拉強度
序號 | 名 稱 | 量的符號 | 單位符號 | 含 義 | |
一 | 強度 | 強度指金屬在外力作用下,抵抗塑性變形和斷裂的能力 | |||
1 | σb | MPa | 金屬試樣拉伸時,在拉斷前所承受的最大負荷與試樣原橫截面面積之比稱為抗拉強度 Pb σb=—— Fo 式中 Pb——試樣拉斷前的最大負荷(N) Fo——試樣原橫截面積(mm ) |
單位:Kg/m | 壁 厚 | ||||||
外 徑 | 6.5 | 7 | 8 | 8.5 | 9 | 10 | 12 |
32 | 4.088 | ||||||
38 | 5.049 | ||||||
42 | 5.691 | ||||||
45 | 6.172 | ||||||
50 | 6.973 | 7.423 | 8.286 | 8.699 | |||
54 | 7.614 | 8.114 | 9.075 | 9.538 | |||
57 | 8.095 | 8.632 | 9.667 | 10.167 | |||
60 | 8.576 | 9.149 | 10.259 | 10.796 | |||
63.5 | 9.137 | 9.754 | 10.950 | 11.529 | |||
68 | 9.858 | 10.530 | 11.838 | 12.473 | |||
70 | 10.179 | 10.876 | 12.232 | 12.892 | 13.539 | 14.797 | 17.164 |
73 | 10.660 | 11.394 | 12.824 | 13.521 | 14.205 | 15.537 | 18.052 |
76 | 11.141 | 11.912 | 13.416 | 14.150 | 14.871 | 16.277 | 18.940 |
89 | 13.225 | 14.156 | 15.981 | 16.875 | 17.756 | 19.483 | 22.787 |
108 | 16.270 | 17.436 | 19.729 | 20.858 | 21.973 | 24.168 | 28.410 |
133 | 20.278 | 21.751 | 24.662 | 26.098 | 27.522 | 30.334 | 35.809 |
159 | 24.446 | 26.240 | 29.791 | 31.548 | 33.293 | 36.746 | 43.503 |
219 | 34.064 | 36.598 | 41.629 | 44.126 | 46.610 | 51.543 | 61.259 |
273 | 42.720 | 45.920 | 52.283 | 55.445 | 58.596 | 64.860 | 77.240 |
325 | 51.056 | 54.897 | 62.542 | 66.346 | 70.137 | 77.684 | 92.629 |
355 | 55.865 | 60.076 | 68.460 | 72.634 | 76.796 | 85.082 | 101.507 |
377 | 59.391 | 63.873 | 72.801 | 77.246 | 81.679 | 90.508 | 108.018 |
426 | 67.246 | 72.332 | 82.468 | 87.518 | 92.555 | 102.592 | 122.519 |
450 | 71.093 | 76.475 | 87.203 | 92.549 | 97.882 | 108.511 | 129.621 |
480 | 75.902 | 81.654 | 93.122 | 98.837 | 104.540 | 115.909 | 138.499 |
530 | 83.917 | 90.286 | 102.987 | 109.319 | 115.638 | 128.240 | 153.296 |
630 | 99.947 | 107.549 | 122.716 | 130.281 | 137.833 | 152.902 | 182.890 |