Soláthraíonn ISO 4200 tábla de thoisí agus meáchain in aghaidh an fhad aonaid le haghaidh feadáin réidh táthaithe agus gan uaim.
Grúpaí Píopaí
Roinneann ISO 4200 píopaí cruach táthaithe agus píopaí cruach gan uaim ina dhá ghrúpa.
Grúpa 1: Feadáin cruach ilfheidhme.
Caighdeáin a úsáidtear go coitianta: API 5L, ASTM A53, GB 3091, agus mar sin de.
Grúpa 2: Feadáin cruach beachtais.
Caighdeáin a úsáidtear go coitianta: ASTM A519, DIN 2391, agus EN 10305-1.
Pléann an páipéar seo go príomha tábla meáchain feadáin cruach chun críocha ginearálta, más mian leat tábla meáchain feadáin cruach le haghaidh feadáin cruach cruinneas a fháil, cliceáil le do thoil ar an gcomhad PD caighdeánach seo a leanas chun féachaint ar Leathanach 10 Tábla 3.
Roinntear feadáin cruach ilchuspóireacha agus feadáin chruach cruinneas go príomha de réir na ndifríochtaí i beachtas, ábhar agus feidhmíocht déantúsaíochta.
Tagraíonn feadáin cruach ilchuspóireacha de ghnáth d'fheadáin chruach le próisis táirgthe réasúnta íseal agus ceanglais theicniúla, a úsáidtear go príomha le haghaidh iompair sreabhach ginearálta ísealbhrú, comhpháirteanna struchtúracha, agus mar sin de.
Tagraíonn feadáin cruach beachtais, ar an láimh eile, d'fheadáin chruach le toisí cruinneas níos airde, cáilíocht dromchla níos fearr, agus ceanglais ábhartha agus feidhmíochta níos déine, agus a úsáidtear go coitianta le haghaidh comhpháirteanna ardchruinneas agus ardfheidhmíochta i ngluaisteán, meaisínithe, peitriceimiceach, agus réimsí eile.
Maidir le trastomhas lasmuigh agus tiús bhalla, is minic go mbíonn ceanglais lamháltais níos déine ag feadáin cruach cruinneas chun freastal ar riachtanais iarratais ar leith.
Cairt Meáchan an Phíobáin de Ghrúpa 1
Roinneann caighdeán ISO 4200 chun críocha ginearálta trastomhas lasmuigh feadáin cruach i dtrí shraith
Sraith 1
Sraith 1: Sraith ina bhfuil na gabhálais go léir is gá chun córais píobaireachta a thógáil caighdeánaithe.
| Trastomhas Lasmuigh （mm） | Tiús Balla (mm) | Mais Deiridh Ghnáth (kg/m) |
| 10.2 | 0.5 | 0. 120 |
| 10.2 | 0.6 | 0. 142 |
| 10.2 | 0.8 | 0. 185 |
| 10.2 | 1 | 0. 227 |
| 10.2 | 1.2 | 0. 266 |
| 10.2 | 1.4 | 0. 304 |
| 10.2 | 1.6 | 0. 339 |
| 10.2 | 1.8 | 0. 373 |
| 10.2 | 2.0 | 0. 404 |
| 10.2 | 2.3 | 0. 448 |
| 10.2 | 2.6 | 0. 487 |
| 13.5 | 0.5 | 0. 160 |
| 13.5 | 0.6 | 0. 191 |
| 13.5 | 0.8 | 0. 251 |
| 13.5 | 1 | 0. 308 |
| 13.5 | 1.2 | 0. 364 |
| 13.5 | 1.4 | 0. 418 |
| 13.5 | 1.6 | 0. 470 |
| 13.5 | 1.8 | 0. 519 |
| 13.5 | 2.0 | 0. 567 |
| 13.5 | 2.3 | 0. 635 |
| 13.5 | 2.6 | 0. 699 |
| 13.5 | 2.9 | 0. 758 |
| 13.5 | 3.2 | 0. 813 |
| 13.5 | 3.6 | 0. 879 |
| 17.2 | 0.5 | 0. 206 |
| 17.2 | 0.6 | 0. 246 |
| 17.2 | 0.8 | 0. 324 |
| 17.2 | 1 | 0. 400 |
| 17.2 | 1.2 | 0. 474 |
| 17.2 | 1.4 | 0. 546 |
| 17.2 | 1.6 | 0. 616 |
| 17.2 | 1.8 | 0. 684 |
| 17.2 | 2.0 | 0.75 |
| 17.2 | 2.3 | 0. 845 |
| 17.2 | 2.6 | 0. 936 |
| 17.2 | 2.9 | 1. 02 |
| 17.2 | 3.2 | 1. 10 |
| 17.2 | 3.6 | 1. 21 |
| 17.2 | 4 | 1. 30 |
| 17.2 | 4.5 | 1. 41 |
| 21.3 | 0.5 | 0. 256 |
| 21.3 | 0.6 | 0. 306 |
| 21.3 | 0.8 | 0. 404 |
| 21.3 | 1 | 0. 501 |
| 21.3 | 1.2 | 0. 595 |
| 21.3 | 1.4 | 0. 687 |
| 21.3 | 1.6 | 0. 777 |
| 21.3 | 1.8 | 0. 866 |
| 21.3 | 2.0 | 0. 952 |
| 21.3 | 2.3 | 1. 08 |
| 21.3 | 2.6 | 1. 20 |
| 21.3 | 2.9 | 1.32 |
| 21.3 | 3.2 | 1. 43 |
| 21.3 | 3.6 | 1. 57 |
| 21.3 | 4 | 1.71 |
| 21.3 | 4.5 | 1.86 |
| 21.3 | 5 | 2. 01 |
| 21.3 | 5.4 | 2.12 |
| 26.9 | 0.5 | 0. 326 |
| 26.9 | 0.6 | 0. 389 |
| 26.9 | 0.8 | 0. 515 |
| 26.9 | 1 | 0. 639 |
| 26.9 | 1.2 | 0. 761 |
| 26.9 | 1.4 | 0. 880 |
| 26.9 | 1.6 | 0. 998 |
| 26.9 | 1.8 | 1. 11 |
| 26.9 | 2.0 | 1.23 |
| 26.9 | 2.3 | 1. 40 |
| 26.9 | 2.6 | 1.56 |
| 26.9 | 2.9 | 1.72 |
| 26.9 | 3.2 | 1.87 |
| 26.9 | 3.6 | 2. 07 |
| 26.9 | 4 | 2.26 |
| 26.9 | 4.5 | 2. 49 |
| 26.9 | 5 | 2.70 |
| 26.9 | 5.4 | 2.86 |
| 26.9 | 5.6 | 2. 94 |
| 26.9 | 6.3 | 3.20 |
| 26.9 | 7.1 | 3. 47 |
| 26.9 | 8 | 3.73 |
| 33.7 | 0.5 | 0. 409 |
| 33.7 | 0.6 | 0. 490 |
| 33.7 | 0.8 | 0. 649 |
| 33.7 | 1 | 0. 806 |
| 33.7 | 1.2 | 0. 962 |
| 33.7 | 1.4 | 1.12 |
| 33.7 | 1.6 | 1.27 |
| 33.7 | 1.8 | 1. 42 |
| 33.7 | 2.0 | 1.56 |
| 33.7 | 2.3 | 1.78 |
| 33.7 | 2.6 | 1. 99 |
| 33.7 | 2.9 | 2. 20 |
| 33.7 | 3.2 | 2. 41 |
| 33.7 | 3.6 | 2.67 |
| 33.7 | 4 | 2. 93 |
| 33.7 | 4.5 | 3.24 |
| 33.7 | 5 | 3.54 |
| 33.7 | 5.4 | 3.77 |
| 33.7 | 5.6 | 3.88 |
| 33.7 | 6.3 | 4.26 |
| 33.7 | 7.1 | 4.66 |
| 33.7 | 8 | 5. 07 |
| 33.7 | 8.8 | 5. 40 |
| 42.4 | 0.5 | 0. 517 |
| 42.4 | 0.6 | 0. 619 |
| 42.4 | 0.8 | 0. 821 |
| 42.4 | 1 | 0. 102 |
| 42.4 | 1.2 | 0. 122 |
| 42.4 | 1.4 | 1. 42 |
| 42.4 | 1.6 | 1.61 |
| 42.4 | 1.8 | 1. 80 |
| 42.4 | 2.0 | 1. 99 |
| 42.4 | 2.3 | 2.27 |
| 42.4 | 2.6 | 2.55 |
| 42.4 | 2.9 | 2.82 |
| 42.4 | 3.2 | 3. 09 |
| 42.4 | 3.6 | 3.44 |
| 42.4 | 4 | 3.79 |
| 42.4 | 4.5 | 4.21 |
| 42.4 | 5 | 4.61 |
| 42.4 | 5.4 | 4.93 |
| 42.4 | 5.6 | 5. 08 |
| 42.4 | 6.3 | 5.61 |
| 42.4 | 7.1 | 6.18 |
| 42.4 | 8.0 | 6.79 |
| 42.4 | 8.8 | 7.29 |
| 42.4 | 10 | 7.99 |
| 48.3 | 0.6 | 0. 706 |
| 48.3 | 0.8 | 0. 937 |
| 48.3 | 1 | 1. 17 |
| 48.3 | 1.2 | 1. 39 |
| 48.3 | 1.4 | 1.62 |
| 48.3 | 1.6 | 1.84 |
| 48.3 | 1.8 | 2. 06 |
| 48.3 | 2.0 | 2.28 |
| 48.3 | 2.3 | 2.61 |
| 48.3 | 2.6 | 2. 93 |
| 48.3 | 2.9 | 3.25 |
| 48.3 | 3.2 | 3.56 |
| 48.3 | 3.6 | 3. 97 |
| 48.3 | 4 | 4.37 |
| 48.3 | 4.5 | 4.86 |
| 48.3 | 5 | 5.34 |
| 48.3 | 5.4 | 5.71 |
| 48.3 | 5.6 | 5. 90 |
| 48.3 | 6.3 | 6.53 |
| 48.3 | 7.1 | 7.21 |
| 48.3 | 8 | 7.95 |
| 48.3 | 8.8 | 8.57 |
| 48.3 | 10 | 9.45 |
| 48.3 | 11 | 10.1 |
| 48.3 | 12.5 | 11.0 |
| 60.3 | 0.6 | 0. 883 |
| 60.3 | 0.8 | 1. 17 |
| 60.3 | 1 | 1. 46 |
| 60.3 | 1.2 | 1.75 |
| 60.3 | 1.4 | 2. 03 |
| 60.3 | 1.6 | 2.32 |
| 60.3 | 1.8 | 2.60 |
| 60.3 | 2.0 | 2.88 |
| 60.3 | 2.3 | 3.29 |
| 60.3 | 2.6 | 3.70 |
| 60.3 | 2.9 | 4.11 |
| 60.3 | 3.2 | 4.51 |
| 60.3 | 3.6 | 5. 03 |
| 60.3 | 4 | 5.55 |
| 60.3 | 4.5 | 6. 19 |
| 60.3 | 5 | 6.82 |
| 60.3 | 5.4 | 7.31 |
| 60.3 | 5.6 | 7.55 |
| 60.3 | 6.3 | 8.39 |
| 60.3 | 7.1 | 9.32 |
| 60.3 | 8 | 10.3 |
| 60.3 | 8.8 | 11.2 |
| 60.3 | 10 | 12.4 |
| 60.3 | 11 | 13.4 |
| 60.3 | 12.5 | 14.7 |
| 60.3 | 14.2 | 16.1 |
| 60.3 | 16 | 17.5 |
| 76.1 | 0.8 | 1. 49 |
| 76.1 | 1 | 1.85 |
| 76.1 | 1.2 | 2.22 |
| 76.1 | 1.4 | 2.58 |
| 76.1 | 1.6 | 2. 94 |
| 76.1 | 1.8 | 3.30 |
| 76.1 | 2.0 | 3.65 |
| 76.1 | 2.3 | 4. 19 |
| 76.1 | 2.6 | 4.71 |
| 76.1 | 2.9 | 5.24 |
| 76.1 | 3.2 | 5.75 |
| 76.1 | 3.6 | 6.44 |
| 76.1 | 4 | 7. 11 |
| 76.1 | 4.5 | 7.95 |
| 76.1 | 5 | 8.77 |
| 76.1 | 5.4 | 9.42 |
| 76.1 | 5.6 | 9.74 |
| 76.1 | 6.3 | 10.8 |
| 76.1 | 7.1 | 12.1 |
| 76.1 | 8 | 13.4 |
| 76.1 | 8.8 | 14.6 |
| 76.1 | 10 | 16.3 |
| 76.1 | 11 | 17.7 |
| 76.1 | 12.5 | 19.6 |
| 76.1 | 14.2 | 21.7 |
| 76.1 | 16 | 23.7 |
| 76.1 | 17.5 | 25.3 |
| 76.1 | 20 | 27.7 |
| 88.9 | 0.8 | 1.74 |
| 88.9 | 1 | 2. 17 |
| 88.9 | 1.2 | 2.60 |
| 88.9 | 1.4 | 3. 02 |
| 88.9 | 1.6 | 3.44 |
| 88.9 | 1.8 | 3.87 |
| 88.9 | 2.0 | 4.29 |
| 88.9 | 2.3 | 4. 91 |
| 88.9 | 2.6 | 5.53 |
| 88.9 | 2.9 | 6.15 |
| 88.9 | 3.2 | 6.76 |
| 88.9 | 3.6 | 7.57 |
| 88.9 | 4 | 8.38 |
| 88.9 | 4.5 | 9.37 |
| 88.9 | 5 | 10.3 |
| 88.9 | 5.4 | 11.1 |
| 88.9 | 5.6 | 11.5 |
| 88.9 | 6.3 | 12.8 |
| 88.9 | 7.1 | 14.3 |
| 88.9 | 8 | 16.0 |
| 88.9 | 8.8 | 17.4 |
| 88.9 | 10 | 19.5 |
| 88.9 | 11 | 21.1 |
| 88.9 | 12.5 | 23.6 |
| 88.9 | 14.2 | 26.2 |
| 88.9 | 16 | 28.8 |
| 88.9 | 17.5 | 30.8 |
| 88.9 | 20 | 34.0 |
| 88.9 | 22.2 | 36.5 |
| 88.9 | 25 | 39.4 |
| 114.3 | 1.2 | 3.35 |
| 114.3 | 1.4 | 3. 90 |
| 114.3 | 1.6 | 4.45 |
| 114.3 | 1.8 | 4. 99 |
| 114.3 | 2.0 | 5.54 |
| 114.3 | 2.3 | 6.35 |
| 114.3 | 2.6 | 7.16 |
| 114.3 | 2.9 | 7. 97 |
| 114.3 | 3.2 | 8.77 |
| 114.3 | 3.6 | 9.83 |
| 114.3 | 4 | 10.9 |
| 114.3 | 4.5 | 12.2 |
| 114.3 | 5 | 13.5 |
| 114.3 | 5.4 | 14.5 |
| 114.3 | 5.6 | 15.0 |
| 114.3 | 6.3 | 16.8 |
| 114.3 | 7.1 | 18.8 |
| 114.3 | 8 | 21.0 |
| 114.3 | 8.8 | 22.9 |
| 114.3 | 10 | 25.7 |
| 114.3 | 11 | 28.0 |
| 114.3 | 12.5 | 31.4 |
| 114.3 | 14.2 | 35.1 |
| 114.3 | 16 | 38.8 |
| 114.3 | 17.5 | 41.8 |
| 114.3 | 20 | 46.5 |
| 114.3 | 22.2 | 50.4 |
| 114.3 | 25 | 55.1 |
| 114.3 | 28 | 59.6 |
| 114.3 | 30 | 62.4 |
| 114.3 | 32 | 64.9 |
| 139.7 | 1.6 | 5. 45 |
| 139.7 | 1.8 | 6.12 |
| 139.7 | 2.0 | 6.79 |
| 139.7 | 2.3 | 7.79 |
| 139.7 | 2.6 | 8.79 |
| 139.7 | 2.9 | 9.78 |
| 139.7 | 3.2 | 10.8 |
| 139.7 | 3.6 | 12.1 |
| 139.7 | 4 | 13.4 |
| 139.7 | 4.5 | 15.0 |
| 139.7 | 5 | 16.6 |
| 139.7 | 5.4 | 17.9 |
| 139.7 | 5.6 | 18.5 |
| 139.7 | 6.3 | 20.7 |
| 139.7 | 7.1 | 23.2 |
| 139.7 | 8 | 26.0 |
| 139.7 | 8.8 | 28.4 |
| 139.7 | 10 | 32.0 |
| 139.7 | 11 | 34.9 |
| 139.7 | 12.5 | 39.2 |
| 139.7 | 14.2 | 43.9 |
| 139.7 | 16 | 48.8 |
| 139.7 | 17.5 | 52.7 |
| 139.7 | 20 | 59.0 |
| 139.7 | 22.2 | 64.3 |
| 139.7 | 25 | 70.7 |
| 139.7 | 28 | 77.1 |
| 139.7 | 30 | 81.2 |
| 139.7 | 32 | 85.0 |
| 139.7 | 36 | 92.1 |
| 139.7 | 40 | 98.4 |
| 168.3 | 1.6 | 6.58 |
| 168.3 | 1.8 | 7.39 |
| 168.3 | 2.0 | 8.20 |
| 168.3 | 2.3 | 9.42 |
| 168.3 | 2.6 | 10.6 |
| 168.3 | 2.9 | 11.8 |
| 168.3 | 3.2 | 13.0 |
| 168.3 | 3.6 | 14.6 |
| 168.3 | 4 | 16.2 |
| 168.3 | 4.5 | 18.2 |
| 168.3 | 5 | 20.1 |
| 168.3 | 5.4 | 21.7 |
| 168.3 | 5.6 | 22.5 |
| 168.3 | 6.3 | 25.2 |
| 168.3 | 7.1 | 28.2 |
| 168.3 | 8 | 31.6 |
| 168.3 | 8.8 | 34.6 |
| 168.3 | 10 | 39.0 |
| 168.3 | 11 | 42.7 |
| 168.3 | 12.5 | 48.0 |
| 168.3 | 14.2 | 54.0 |
| 168.3 | 16 | 60.1 |
| 168.3 | 17.5 | 65.1 |
| 168.3 | 20 | 73.1 |
| 168.3 | 22.2 | 80.0 |
| 168.3 | 25 | 88.3 |
| 168.3 | 28 | 96.9 |
| 168.3 | 30 | 102 |
| 168.3 | 32 | 108 |
| 168.3 | 36 | 117 |
| 168.3 | 40 | 127 |
| 168.3 | 45 | 137 |
| 168.3 | 50 | 146 |
| 219.1 | 1.8 | 9.65 |
| 219.1 | 2.0 | 10.7 |
| 219.1 | 2.3 | 12.3 |
| 219.1 | 2.6 | 13.9 |
| 219.1 | 2.9 | 15.5 |
| 219.1 | 3.2 | 17.0 |
| 219.1 | 3.6 | 19.1 |
| 219.1 | 4 | 21.2 |
| 219.1 | 4.5 | 23.8 |
| 219.1 | 5 | 26.4 |
| 219.1 | 5.4 | 28.5 |
| 219.1 | 5.6 | 29.5 |
| 219.1 | 6.3 | 33.1 |
| 219.1 | 7.1 | 37.1 |
| 219.1 | 8 | 41.6 |
| 219.1 | 8.8 | 45.6 |
| 219.1 | 10 | 51.6 |
| 219.1 | 11 | 56.5 |
| 219.1 | 12.5 | 63.7 |
| 219.1 | 14.2 | 71.8 |
| 219.1 | 16 | 80.1 |
| 219.1 | 17.5 | 87.0 |
| 219.1 | 20 | 98.2 |
| 219.1 | 22.2 | 108 |
| 219.1 | 25 | 120 |
| 219.1 | 28 | 132 |
| 219.1 | 30 | 140 |
| 219.1 | 32 | 148 |
| 219.1 | 36 | 163 |
| 219.1 | 40 | 177 |
| 219.1 | 45 | 193 |
| 219.1 | 50 | 209 |
| 219.1 | 55 | 223 |
| 219.1 | 60 | 235 |
| 219.1 | 65 | 247 |
| 273.0 | 2.0 | 13.4 |
| 273.0 | 2.3 | 15.4 |
| 273.0 | 2.6 | 17.3 |
| 273.0 | 2.9 | 19.3 |
| 273.0 | 3.2 | 21.3 |
| 273.0 | 3.6 | 23.9 |
| 273.0 | 4 | 26.5 |
| 273.0 | 4.5 | 29.8 |
| 273.0 | 5 | 33.0 |
| 273.0 | 5.4 | 35.6 |
| 273.0 | 5.6 | 36.9 |
| 273.0 | 6.3 | 41.4 |
| 273.0 | 7.1 | 46.6 |
| 273.0 | 8 | 52.3 |
| 273.0 | 8.8 | 57.3 |
| 273.0 | 10 | 64.9 |
| 273.0 | 11 | 71.1 |
| 273.0 | 12.5 | 80.3 |
| 273.0 | 14.2 | 90.6 |
| 273.0 | 16 | 101 |
| 273.0 | 17.5 | 110 |
| 273.0 | 20 | 125 |
| 273.0 | 22.2 | 137 |
| 273.0 | 25 | 153 |
| 273.0 | 28 | 169 |
| 273.0 | 30 | 180 |
| 273.0 | 32 | 190 |
| 273.0 | 36 | 210 |
| 273.0 | 40 | 230 |
| 273.0 | 45 | 253 |
| 273.0 | 50 | 275 |
| 273.0 | 55 | 296 |
| 273.0 | 60 | 315 |
| 273.0 | 65 | 333 |
| 323.9 | 2.6 | 20.6 |
| 323.9 | 2.9 | 23.0 |
| 323.9 | 3.2 | 25.3 |
| 323.9 | 3.6 | 28.4 |
| 323.9 | 4 | 31.6 |
| 323.9 | 4.5 | 35.4 |
| 323.9 | 5 | 39.3 |
| 323.9 | 5.4 | 42.4 |
| 323.9 | 5.6 | 44.0 |
| 323.9 | 6.3 | 49.3 |
| 323.9 | 7.1 | 55.5 |
| 323.9 | 8 | 62.3 |
| 323.9 | 8.8 | 68.4 |
| 323.9 | 10 | 77.4 |
| 323.9 | 11 | 84.9 |
| 323.9 | 12.5 | 96 |
| 323.9 | 14.2 | 108 |
| 323.9 | 16 | 121 |
| 323.9 | 17.5 | 132 |
| 323.9 | 20 | 150 |
| 323.9 | 22.2 | 165 |
| 323.9 | 25 | 184 |
| 323.9 | 28 | 204 |
| 323.9 | 30 | 217 |
| 323.9 | 32 | 230 |
| 323.9 | 36 | 256 |
| 323.9 | 40 | 280 |
| 323.9 | 45 | 310 |
| 323.9 | 50 | 338 |
| 323.9 | 55 | 365 |
| 323.9 | 60 | 390 |
| 323.9 | 65 | 415 |
| 355.6 | 2.6 | 22.6 |
| 355.6 | 2.9 | 25.2 |
| 355.6 | 3.2 | 27.8 |
| 355.6 | 3.6 | 31.3 |
| 355.6 | 4 | 34.7 |
| 355.6 | 4.5 | 39.0 |
| 355.6 | 5 | 43.2 |
| 355.6 | 5.4 | 46.6 |
| 355.6 | 5.6 | 48.3 |
| 355.6 | 6.3 | 54.3 |
| 355.6 | 7.1 | 61.0 |
| 355.6 | 8 | 68.6 |
| 355.6 | 8.8 | 75.3 |
| 355.6 | 10 | 85.2 |
| 355.6 | 11 | 93.5 |
| 355.6 | 12.5 | 106 |
| 355.6 | 14.2 | 120 |
| 355.6 | 16 | 134 |
| 355.6 | 17.5 | 146 |
| 355.6 | 20 | 166 |
| 355.6 | 22.2 | 183 |
| 355.6 | 25 | 204 |
| 355.6 | 28 | 226 |
| 355.6 | 30 | 241 |
| 355.6 | 32 | 255 |
| 355.6 | 36 | 284 |
| 355.6 | 40 | 311 |
| 355.6 | 45 | 345 |
| 355.6 | 50 | 377 |
| 355.6 | 55 | 408 |
| 355.6 | 60 | 437 |
| 355.6 | 65 | 466 |
| 406.4 | 2.6 | 25.9 |
| 406.4 | 2.9 | 28.9 |
| 406.4 | 3.2 | 31.8 |
| 406.4 | 3.6 | 35.8 |
| 406.4 | 4 | 39.7 |
| 406.4 | 4.5 | 44.6 |
| 406.4 | 5 | 49.5 |
| 406.4 | 5.4 | 53.4 |
| 406.4 | 5.6 | 55.4 |
| 406.4 | 6.3 | 62.2 |
| 406.4 | 7.1 | 69.9 |
| 406.4 | 8 | 78.6 |
| 406.4 | 8.8 | 86.3 |
| 406.4 | 10 | 97.8 |
| 406.4 | 11 | 107 |
| 406.4 | 12.5 | 121 |
| 406.4 | 14.2 | 137 |
| 406.4 | 16 | 154 |
| 406.4 | 17.5 | 168 |
| 406.4 | 20 | 191 |
| 406.4 | 22.2 | 210 |
| 406.4 | 25 | 235 |
| 406.4 | 28 | 261 |
| 406.4 | 30 | 278 |
| 406.4 | 32 | 295 |
| 406.4 | 36 | 329 |
| 406.4 | 40 | 361 |
| 406.4 | 45 | 401 |
| 406.4 | 50 | 439 |
| 406.4 | 55 | 477 |
| 406.4 | 60 | 513 |
| 406.4 | 65 | 547 |
| 457.0 | 3.2 | 35.8 |
| 457.0 | 3.6 | 40.3 |
| 457.0 | 4 | 44.7 |
| 457.0 | 4.5 | 50.2 |
| 457.0 | 5 | 56.7 |
| 457.0 | 5.4 | 60.1 |
| 457.0 | 5.6 | 62.3 |
| 457.0 | 6.3 | 70.0 |
| 457.0 | 7.1 | 78.8 |
| 457.0 | 8 | 88.6 |
| 457.0 | 8.8 | 97.3 |
| 457.0 | 10 | 110 |
| 457.0 | 11 | 121 |
| 457.0 | 12.5 | 137 |
| 457.0 | 14.2 | 155 |
| 457.0 | 16 | 174 |
| 457.0 | 17.5 | 190 |
| 457.0 | 20 | 216 |
Sraith 2
Sraith 2: Sraith nach bhfuil gach oiriúint caighdeánaithe ina leith.
Sraith 3
Sraith 3: Sraith d'fheidhmchláir speisialta nach bhfuil ach fíorbheagán gabhálais caighdeánaithe ann dóibh.
Modh Ríomh
M=(DT)×T×0.0246615
Mis é an mhais in aghaidh an aonaid faid i gcileagraim in aghaidh an mhéadair;
Dan bhfuil an trastomhas seachtrach sonraithe ina mhilliméadar;
Tan bhfuil an tiús sonraithe i milliméadair;
Cuirtear san áireamh sa chomhéifeacht 0,0246615 an dlús cothrom le 7.85 kg/dm3
Déantar torthaí na ríomhanna a shlánú go dtí na trí fhigiúr shuntasacha do luachanna faoi bhun 100 agus go dtí an tslánuimhir is gaire do luachanna níos mó.
Tábla 2 - Toisí agus maiseanna in aghaidh an aonaid faid, grúpa 1 agus Tábla 3 - Toisí agus maiseanna in aghaidh an aonaid faid, grúpa 2 i gcaighdeán ISO 4200 a ríomh ar an mbonn seo freisin.
Tiús Roghnaithe
Chun roghnú méideanna caighdeánaithe le haghaidh píopaí agus gabhálais a shimpliú.
Soláthraíonn ISO 4200 freisin seacht raon de thiús is fearr le haghaidh trastomhas lasmuigh de phíopaí cruach chun críocha ginearálta: A, B, C, D, E, F, agus G.
A, B, C, E, F, agus G: De ghnáth a úsáidtear le haghaidh táirgí feadánacha cruach dhosmálta;
A, B, agus C: De ghnáth ní úsáidtear ach amháin le haghaidh cruach dhosmálta, ach i gcásanna áirithe is féidir é a úsáid le haghaidh cineálacha eile cruach;
D agus E: Tá na tiús roghnaithe liostaithe go sonrach le haghaidh feadánra cruach ardchaighdeáin tráchtála comhréidh;
D: Neamhbhainteach maidir le ceangaltáin butt-weld.
Caighdeáin Choibhéiseacha
ISO 4200 Tábla 2 agus EN 10220 Tábla 1mar an gcéanna i roinnt na sraithe píopa cruach agus sna staitisticí ar mheáchan tríthoiseach píopa cruach le tiús bhalla ≤ 65mm.
Ach níl an tiús balla de 70mm ≤ T ≤ 100mm de staitisticí meáchain tríthoiseach píopa cruach ag ISO 4200.
Sonraítear in EN 10220 meáchan tríthoiseach an phíobáin déanta as cruach gan uaim agus táthaithe.Agus ansin níl aon roinnt feadáin cruach ina dhá ghrúpa: feadáin cruach ginearálta agus feadáin cruach cruinneas.
Dá bhrí sin, cé go meastar go minic go bhfuil an dá chaighdeán coibhéiseach nó ar a laghad an-luí ó thaobh cleachtais de, d’fhéadfadh difríochtaí a bheith ann maidir le raon feidhme an iarratais agus sonraí sonracha, go háirithe i gcás feidhmchlár sonrach nó ceanglais réigiúnacha.
Cuspóir an Tábla Meáchan
chairt meáchan píopaná treoir a sholáthar maidir le roghnú na dtoisí a rialáil do na gníomhaíochtaí go léir a bhaineann le caighdeánú píopaí cruach, ionas gur féidir ríomhanna a dhéanamh go héasca chun úsáid cáilíochtaí éagsúla a sheachaint don mhéid céanna píopaí i dtíortha éagsúla.
Is monaróir agus soláthraí píopa cruach carbóin táthaithe ardchaighdeáin atá againn ón tSín, agus freisin stocálaí píopa cruach gan uaim, ag tairiscint raon leathan réitigh píopa cruach duit!
clibeanna: iso 4200, cairt meáchain píopa, soláthraithe, monaróirí, monarchana, stocálaithe, cuideachtaí, mórdhíola, ceannach, praghas, luachan, mórchóir, ar díol, costas.
Am poist: Mar-13-2024