JIS G 3454jẹ boṣewa ile-iṣẹ Japanese fun awọn paipu irin erogba fun awọn ọna titẹ pẹlu iwọn otutu ti o pọju ti 350°C.Iwọnwọn pẹlu awọn onipò meji:STPG 370atiSTPG 410.O kan si itanna resistance welded (ERW) tabi laisiyonu paipu pẹlu kan ipin opin ti 10.5 mm to 660.4 mm (ie 6A to 650A, tabi 1/8B to 26B).
JIS G 3454 Awọn paipu irin yoo jẹ ti ṣelọpọ nipa lilo apapo ti o yẹ ti awọn ọna iṣelọpọ irin ati awọn ọna ipari ni tabili ni isalẹ.
| Aami ti ite | Aami ti ilana iṣelọpọ | ||
| Paipu ẹrọ ilana | Ọna ipari | Isọri ti sinkii-bo | |
| STPG370 STPG410 | Alailowaya: S Idaabobo itanna welded: E | Ipari gbona: H Tutu ti pari: C Bi itanna resistance welded: G | Black pipes: paipu ko fun sinkii-bo Awọn paipu funfun: awọn paipu ti a fun ni ibori zinc |
Ni pato, awọn ọna iṣelọpọ marun wa:
SH: Gbona-pari seamless irin pipe;
SC: Tutu-pari seamless, irin pipe;
EH: Gbona-pari ina resistance welded irin pipe;
EC: Tutu-pari ina resistance welded irin pipe;
EG: Itanna resistance welded paipu irin miiran ju gbona-pari ati ki o tutu-pari eyi.
Botop Irinjẹ olupilẹṣẹ ati olutaja ti awọn paipu irin carbon welded ti o ga julọ lati Ilu China, bakanna bi oluṣowo ti awọn paipu irin alailẹgbẹ.Ti o ba ni awọn iwulo eyikeyi, jọwọ lero ọfẹ lati kan si wa ati pe a yoo fun ọ ni atilẹyin imọ-ẹrọ ọfẹ ọfẹ.
| Aami ti ite | C | Si | Mn | P | S |
| o pọju | o pọju | - | o pọju | o pọju | |
| STPG 370 | 0.25% | 0.35% | 0.30-0.90% | 0.040% | 0.040% |
| STPG 410 | 0.30% | 0.35% | 0.30-1.00% | 0.040% | 0.040% |
Faye gba awọn afikun ti miiran alloying eroja.
Agbara Fifẹ, Ojuami Ikore tabi Wahala Ẹri, ati Ilọsiwaju
| Aami ti ite | Agbara fifẹ | Aaye ikore tabi wahala ẹri | Ilọsiwaju min,% | |||
| Nkan idanwo fifẹ | ||||||
| No.11 tabi No.12 | No.5 | No.4 | ||||
| N/mm² (MPA) | N/mm² (MPA) | Itọsọna idanwo fifẹ | ||||
| min | min | Ni afiwe si ipo paipu | Papẹndikula to paipu ipo | Ni afiwe si ipo paipu | Papẹndikula to paipu ipo | |
| STPT370 | 370 | 215 | 30 | 25 | 28 | 23 |
| STPT410 | 410 | 245 | 25 | 20 | 24 | 19 |
Idanwo fifẹ
Nigbati aaye laarin awọn awo meji ba de aaye ti a sọ pato H, ko ni si awọn abawọn tabi awọn dojuijako lori oju paipu irin.
Fun awọn ọpọn irin alailẹgbẹ: H = (1+e) t/ (e + t/D);
Fun awọn paipu irin ERW: H = 1/3 D (fun weld) tabi H = 2/3 D (fun ipin laisi weld);
H: aaye laarin awọn apẹrẹ fifẹ (mm);
е: nigbagbogbo ni ẹyọkan kọọkan fun ipele kọọkan ti paipu, 0.08 fun STPG 370, 0.07 fun STPG 410;
t: sisanra ogiri ti paipu (mm);
D: ita opin ti paipu (mm);
Idanwo fifẹ jẹ iwulo si awọn paipu irin pẹlu iwọn ila opin ti o tobi ju 40A (48.6mm).
Iṣeduro
Bendability kan si awọn paipu pẹlu iwọn ila opin ti 40 A (48.6) tabi kere si.
Paipu yẹ ki o tẹ 90° ni radius ti awọn akoko 6 iwọn ila opin rẹ.Odi paipu gbọdọ jẹ laisi abawọn tabi awọn dojuijako.
Paipu irin kọọkan gbọdọ gba idanwo titẹ hydrostatic tabi idanwo ti kii ṣe iparun.
Idanwo Hydrostatic
Ṣe itọju titẹ kan fun o kere ju iṣẹju 5 laisi jijo.
Iwọn titẹ jẹ ibatan si iṣeto No. ti paipu irin.
| Iforu odi sisanra | Nọmba iṣeto: Sch | |||||
| 10 | 20 | 30 | 40 | 60 | 80 | |
| Titẹ idanwo hydraulic ti o kere ju, Mpa | 2.0 | 3.5 | 5.0 | 6.0 | 9.0 | 12 |
Idanwo ti kii ṣe iparun
Ti o ba ti lo ayewo ultrasonic, o yẹ ki o da lori idiwọn ti o muna ju ami ifihan kilasi UD ni JIS G 0582.
Ti o ba ti lo idanwo lọwọlọwọ eddy, o yẹ ki o da lori boṣewa ti o ni okun sii ju ifihan kilasi EY ni JIS G 0583.
| Iwọn ila opin | Ita opin | Odi sisanra | Iwọn ẹyọkan | Nọmba iṣeto (Sch No.) | |
| A | B | mm | mm | kg/m | |
| 6 | 1/8 | 10.5 | 1.7 | 0.369 | 40 |
| 6 | 1/8 | 10.5 | 2.2 | 0.450 | 60 |
| 6 | 1/8 | 10.5 | 2.4 | 0.479 | 80 |
| 8 | 1/4 | 13.8 | 2.2 | 0.629 | 40 |
| 8 | 1/4 | 13.8 | 2.4 | 0.675 | 60 |
| 8 | 1/4 | 13.8 | 3.0 | 0.799 | 80 |
| 10 | 3/8 | 17.3 | 2.3 | 0.851 | 40 |
| 10 | 3/8 | 17.3 | 2.8 | 1.00 | 60 |
| 10 | 3/8 | 17.3 | 3.2 | 1.11 | 80 |
| 15 | 1/2 | 21.7 | 2.8 | 1.31 | 40 |
| 15 | 1/2 | 21.7 | 3.2 | 1.46 | 60 |
| 15 | 1/2 | 21.7 | 3.7 | 1.64 | 80 |
| 20 | 3/4 | 27.2 | 2.9 | 1.74 | 40 |
| 20 | 3/4 | 27.2 | 3.4 | 2.00 | 60 |
| 20 | 3/4 | 27.2 | 3.9 | 2.24 | 80 |
| 25 | 1 | 34.0 | 3.4 | 2.57 | 40 |
| 25 | 1 | 34.0 | 3.9 | 2.89 | 60 |
| 25 | 1 | 34.0 | 4.5 | 3.27 | 80 |
| 32 | 1 1/4 | 42.7 | 3.6 | 3.47 | 40 |
| 32 | 1 1/4 | 42.7 | 4.5 | 4.24 | 60 |
| 32 | 1 1/4 | 42.7 | 4.9 | 4.57 | 80 |
| 40 | 1 1/2 | 48.6 | 3.7 | 4.10 | 40 |
| 40 | 1 1/2 | 48.6 | 4.5 | 4.89 | 60 |
| 40 | 1 1/2 | 48.6 | 5.1 | 5.47 | 80 |
| 50 | 2 | 60.5 | 3.2 | 4.52 | 20 |
| 50 | 2 | 60.5 | 3.9 | 5.44 | 40 |
| 50 | 2 | 60.5 | 4.9 | 6.72 | 60 |
| 50 | 2 | 60.5 | 5.5 | 7.46 | 80 |
| 65 | 2 1/2 | 76.3 | 4.5 | 7.97 | 20 |
| 65 | 2 1/2 | 76.3 | 5.2 | 9.12 | 40 |
| 65 | 2 1/2 | 76.3 | 6.0 | 10.4 | 60 |
| 65 | 2 1/2 | 76.3 | 7.0 | 12.0 | 80 |
| 80 | 3 | 89.1 | 4.5 | 9.39 | 20 |
| 80 | 3 | 89.1 | 5.5 | 11.3 | 40 |
| 80 | 3 | 89.1 | 6.6 | 13.4 | 60 |
| 80 | 3 | 89.1 | 7.6 | 15.3 | 80 |
| 90 | 3 1/2 | 101.6 | 4.5 | 10.8 | 20 |
| 90 | 3 1/2 | 101.6 | 5.7 | 13.5 | 40 |
| 90 | 3 1/2 | 101.6 | 7.0 | 16.3 | 60 |
| 90 | 3 1/2 | 101.6 | 8.1 | 18.7 | 80 |
| 100 | 4 | 114.3 | 4.9 | 13.2 | 20 |
| 100 | 4 | 114.3 | 6.0 | 16.0 | 40 |
| 100 | 4 | 114.3 | 7.1 | 18.8 | 60 |
| 100 | 4 | 114.3 | 8.6 | 22.4 | 80 |
| 125 | 5 | 139.8 | 5.1 | 16.9 | 20 |
| 125 | 5 | 139.8 | 6.6 | 12.7 | 40 |
| 125 | 5 | 139.8 | 8.1 | 26.3 | 60 |
| 125 | 5 | 139.8 | 9.5 | 30.5 | 80 |
| 150 | 6 | 165.2 | 5.5 | 21.7 | 20 |
| 150 | 6 | 165.2 | 7.1 | 27.7 | 40 |
| 150 | 6 | 165.2 | 9.3 | 35.8 | 60 |
| 150 | 6 | 165.2 | 11.0 | 41.8 | 80 |
| 200 | 8 | 216.3 | 6.4 | 33.1 | 20 |
| 200 | 8 | 216.3 | 7.0 | 36.1 | 30 |
| 200 | 8 | 216.3 | 8.2 | 42.1 | 40 |
| 200 | 8 | 216.3 | 10.3 | 52.3 | 60 |
| 200 | 8 | 216.3 | 12.7 | 63.8 | 80 |
| 250 | 10 | 267.4 | 6.4 | 41.2 | 20 |
| 250 | 10 | 267.4 | 7.8 | 49.9 | 30 |
| 250 | 10 | 267.4 | 9.3 | 59.2 | 40 |
| 250 | 10 | 267.4 | 12.7 | 79.8 | 60 |
| 250 | 10 | 267.4 | 15.1 | 93.9 | 80 |
| 300 | 12 | 318.5 | 6.4 | 49.3 | 20 |
| 300 | 12 | 318.5 | 8.4 | 64.2 | 30 |
| 300 | 12 | 318.5 | 10.3 | 78.3 | 40 |
| 300 | 12 | 318.5 | 14.3 | 107 | 60 |
| 300 | 12 | 318.5 | 17.4 | 129 | 80 |
| 350 | 14 | 355.6 | 6.4 | 55.1 | 10 |
| 350 | 14 | 355.6 | 7.9 | 67.7 | 20 |
| 350 | 14 | 355.6 | 9.5 | 81.1 | 30 |
| 350 | 14 | 355.6 | 11.1 | 94.3 | 40 |
| 350 | 14 | 355.6 | 15.1 | 127 | 60 |
| 350 | 14 | 355.6 | 19.0 | 158 | 80 |
| 400 | 16 | 406.4 | 6.4 | 63.1 | 10 |
| 400 | 16 | 406.4 | 7.9 | 77.6 | 20 |
| 400 | 16 | 406.4 | 9.5 | 93.0 | 30 |
| 400 | 16 | 406.4 | 12.7 | 123 | 40 |
| 400 | 16 | 406.4 | 16.7 | 160 | 60 |
| 400 | 16 | 406.4 | 21.4 | 203 | 80 |
| 450 | 18 | 457.2 | 6.4 | 71.1 | 10 |
| 450 | 18 | 457.2 | 7.9 | 87.5 | 20 |
| 450 | 18 | 457.2 | 11.1 | 122 | 30 |
| 450 | 18 | 457.2 | 14.3 | 156 | 40 |
| 450 | 18 | 457.2 | 19.0 | 205 | 60 |
| 450 | 18 | 457.2 | 23.8 | 254 | 80 |
| 500 | 20 | 508.0 | 6.4 | 79.2 | 10 |
| 500 | 20 | 508.0 | 9.5 | 117 | 20 |
| 500 | 20 | 508.0 | 12.7 | 155 | 30 |
| 500 | 20 | 508.0 | 15.1 | 184 | 40 |
| 500 | 20 | 508.0 | 20.6 | 248 | 60 |
| 500 | 20 | 508.0 | 26.2 | 311 | 80 |
| 550 | 22 | 558.8 | 6.4 | 87.2 | 10 |
| 550 | 22 | 558.8 | 9.5 | 129 | 20 |
| 550 | 22 | 558.8 | 12.7 | 171 | 30 |
| 550 | 22 | 558.8 | 15.9 | 213 | 40 |
| 600 | 24 | 609.6 | 6.4 | 95.2 | 10 |
| 600 | 24 | 609.6 | 9.5 | 141 | 20 |
| 600 | 24 | 609.6 | 14.3 | 210 | 30 |
| 650 | 26 | 660.4 | 7.9 | 127 | 10 |
| 650 | 26 | 660.4 | 12.7 | 203 | 20 |
JIS G 3454 Awọn ifarada fun iwọn ila opin ita, sisanra ogiri, eccentricity, ati ipari yoo pade awọn ibeere wọnyi.
Niwon idasile rẹ ni 2014, Botop Steel ti di olutaja asiwaju ti paipu irin carbon ni Ariwa China, ti a mọ fun iṣẹ ti o dara julọ, awọn ọja ti o ga julọ, ati awọn iṣeduro okeerẹ.
Ile-iṣẹ nfunni ni ọpọlọpọ awọn paipu irin erogba ati awọn ọja ti o jọmọ, pẹlu lainidi, ERW, LSAW, ati paipu irin SSAW, bakanna bi tito lẹsẹsẹ pipe ti awọn ohun elo pipe ati awọn flanges.
Awọn ọja pataki rẹ tun pẹlu awọn alloy-giga ati awọn irin alagbara austenitic, ti a ṣe deede lati pade awọn ibeere ti awọn iṣẹ akanṣe opo gigun ti epo pupọ.
Jọwọ kan si wa, a yoo fun ọ ni didara to gaju, awọn paipu irin boṣewa pẹlu iṣẹ amọdaju ati iṣẹ ṣiṣe to munadoko.Botop n reti lati sìn ọ.
