高密度聚乙烯外护管性能指标 项目 测试方法 指标 拉伸屈服强度 GB/T8004.2 ≥19MPa 断裂伸长率 GB/T8004.2 ≥350% 密度 GB/T1033 ≥940Kg/m 熔体流动速率 GB/T3682 0.5g/10min 纵向回缩率 GB/T6671.2 ≤3% 长期机械性能 GB/T6111 >1500h 热稳定性 GB/T7391 >20min 炭黑含量 GB/T3021 2.5±0.5% 电晕效果 DY试剂 ≥50DYn/cm 高密度聚乙烯外护管规格表 外径mm 标 准 型 薄壁型 对应钢管外径mm 对应保温层厚度mm 对应套袖mm　　　　　　壁厚mm 重量Kg 允许偏差mm 壁厚mm 重量Kg 允许偏差mm　　　　　　92 2.5 0.675 ±0.23 2.0 0.543 ±0.2 27 34 30 27 110 100 2.5 0.735 ±0.23 2.0 0.591 ±0.2 34 31 110 110 2.5 0.811 ±0.23 2.0 0.651 ±0.2 48 29 121 121 2.5 0.893 ±0.23 2.0 0.718 ±0.2 57 30 125 125 2.5 0.924 ±0.23 2.0 0.742 ±0.2 57 60 31 30 133 133 2.5 0.984 ±0.23 2.0 0.790 ±0.2 57 60 36 34 142 142 3 1.258 ±0.25 2.0 0.844 ±0.2 76 31 155 150 3 1.330 ±0.25 2.0 0.893 ±0.2 76 35 165 155 3 1.375 ±0.25 2.0 0.923 ±0.2 89 31 165 161 3 1.430 ±0.25 2.0 0.959 ±0.2 89 34 175 165 3 1.466 ±0.25 2.0 0.983 ±0.2 89 36 175 171 3 1.520 ±0.25 2.0 1.019 ±0.2 89 39 180 175 3 1.556 ±0.25 2.0 1.044 ±0.2 108 31 180 180 3 1.601 ±0.25 2.0 1.074 ±0.2 108 114 33 31 188 188 3 1.674 ±0.25 2.0 1.122 ±0.2 114 35 200 194 3 1.728 ±0.25 2.0 1.158 ±0.2 108 41 200 200 3.2 1.899 ±0.26 2.2 1.312 ±0.21 133 31 211 208 3.2 1.977 ±0.26 2.2 1.365 ±0.21 133 35 219 211 3.2 2.005 ±0.26 2.2 1.385 ±0.21 133 31 219 219 3.2 2.083 ±0.26 2.2 1.438 ±0.21 133 40.8 225 225 3.5 2.338 ±0.28 2.5 1.678 ±0.23 140 159 40 30 238 230 3.5 2.391 ±0.28 2.5 1.715 ±0.23 165 30 238 238 3.5 2.475 ±0.28 2.5 1.776 ±0.23 159 37 245 245 3.5 2.549 ±0.28 2.5 1.828 ±0.23 159 39 265 250 3.9 2.894 ±0.30 2.5 1.866 ±0.23 159 43 265 265 3.9 3.071 ±0.30 2.5 1.979 ±0.23 165 47 285 280 4.4 3.657 ±0.32 3.0 2.506 ±0.25 165 53 290 285 4.4 3.724 ±0.32 3.0 2.551 ±0.25 219 30 290 290 4.4 3.790 ±0.32 3.0 2.597 ±0.25 219 32 302 300 4.4 3.923 ±0.32 3.0 2.687 ±0.25 219 37 310 305 4.4 3.989 ±0.32 3.0 2.732 ±0.25 219 40 310 310 4.4 4.055 ±0.32 3.0 2.778 ±0.25 219 42 327 315 4.9 4.583 ±0.35 3.5 3.288 ±0.27 219 44 327 325 4.9 4.730 ±0.35 3.5 3.394 ±0.27 219 49.5 335 327 4.9 4.760 ±0.35 3.5 3.415 ±0.27 219 50 345 335 4.9 4.878 ±0.35 3.5 3.499 ±0.27 219 54 345 345 4.9 5.026 ±0.35 3.5 3.605 ±0.27 273 32 365 355 4.9 5.174 ±0.35 3.5 3.710 ±0.27 273 37 365 361 5.6 6.002 ±0.38 4.0 4.307 ±0.3 273 40 385 365 5.6 6.070 ±0.38 4.0 4.355 ±0.3 273 42 385 381 5.6 6.340 ±0.38 4.0 4.548 ±0.3 273 40 440 385 5.6 6.408 ±0.38 4.0 1.596 ±0.3 273 52 440 400 6.3 7.480 ±0.57 5.0 5.956 ±0.47 325 32 417 407 6.3 7.613 ±0.57 5.0 6.062 ±0.47 325 35 420 417 6.3 7.803 ±0.57 5.0 6.213 ±0.47 325 41 439 420 7.0 8.719 ±0.63 5.0 6.258 ±0.47 325 42 439 433 7.0 8.994 ±0.63 5.0 6.454 ±0.47 325 49 450 439 7.0 9.120 ±0.63 5.0 6.544 ±0.47 325 52 450 450 7.0 9.352 ±0.63 5.0 6.710 ±0.47 377 31 464 464 7.0 9.648 ±0.63 5.0 6.922 ±0.47 377 31 470 470 7.0 9.775 ±0.63 5.0 7.012 ±0.47 377 41 500 475 7.0 9.880 ±0.63 5.0 7.087 ±0.47 377 44 500 485 7.0 10.091 ±0.63 5.0 7.238 ±0.47 377 40 500 490 7.0 10.197 ±0.63 5.0 7.314 ±0.47 377 51 500 500 7.8 11.579 ±0.69 6.0 7.939 ±0.55 377 55 520 520 7.8 12.049 ±0.69 6.0 9.301 ±0.55 426 41 525 525 7.8 12.166 ±0.69 6.0 9.392 ±0.55 426 43 535 530 7.8 12.284 ±0.69 6.0 9.482 ±0.55 426 46 550 535 7.8 12.402 ±0.69 6.0 9.572 ±0.55 426 48 550 550 8.8 14.363 ±0.76 6.5 10.655 ±0.58 426 55 568 568 8.8 14.841 ±0.76 6.5 11.077 ±0.58 478 40 600 580 8.8 15.195 ±0.76 6.5 11.243 ±0.58 478 44 600 590 8.8 15.425 ±0.76 6.5 11.439 ±0.58 478 50 630 600 8.8 15.690 ±0.76 6.5 11.635 ±0.58 478 54 655 622 8.8 16.274 ±0.76 6.5 12.066 ±0.58 478 65.5 655 630 9.8 18.331 ±0.84 8.0 15.077 ±0.70 529 42 655 641 9.8 18.656 ±0.84 8.0 15.273 ±0.70 529 48 655 655 9.8 19.069 ±0.84 8.0 15.610 ±0.70 529 55 685 685 9.8 19.965 ±0.84 8.0 16.334 ±0.70 529 70 710 700 9.8 20.695 ±0.84 8.0 16.937 ±0.70 529 80 733 733 11.1 24.167 ±0.93 8.0 17.492 ±0.70 630 43 760 740 11.1 24.401 ±0.93 8.0 17.661 ±0.70 630 47 760 746 11.1 24.602 ±0.93 8.0 17.806 ±0.70 630 50 760 750 11.1 24.736 ±0.93 8.0 17.903 ±0.70 630 52 777 760 11.1 25.071 ±0.93 8.0 18.144 ±0.70 630 57 777 777 11.1 25.640 ±0.93 8.0 18.554 ±0.70 630 65.5 795 795 11.1 26.212 ±0.93 8.0 18.988 ±0.70 630 74 830 830 11.1 27.414 ±0.93 8.0 19.833 ±0.70 720 47 850 850 12 30.328 ±1.0 9.0 22.828 ±0.77 720 56 885 885 12 31.595 ±1.0 9.0 23.77 ±0.77 720 73 - 911 12 33.730 ±1.0 9.0 25.379 ±0.77 820 53 988 988 12 35.232 ±1.0 9.0 26.573 ±0.77 820 75 1054 1044 14 43.490 ±1.15 10 31.185 ±0.85 920 48 - 1054 14 43.912 ±1.15 10 31.486 ±0.85 920 57 1095 1095 14 45.643 ±1.15 10 32.732 ±0.85 920 77 - 1155 14 48.477 ±1.15 10 34.532 ±0.85 1020 57 1210 1192 14 49.739 ±1.15 10 35.648 ±0.85 1020 72 - 1210 14 50.499 ±1.15 10 36.191 ±0.85 1020 95 - 1380 14 57.677 ±1.15 10 41.318 ±0.85 1220 70 1430