20G Seamless Steel Pipe
Round tube blangko → heating → piercing → heading → annealing → pickling → oiling (copper plating) → multi-pass cold drawing (cold rolling) → billet tube → heat treatment → straightening→Hydraulic test (detect ng kapintasan) → Pagmamarka → Warehousing.
Tatlong uri: strapping, boxing, oiled strapping o oiled boxing
1, Seamless steel pipe para sa istraktura: GB8162-201
2, Ground seam steel pipe para sa conveying fluid: GB8163-2018
3. Low and medium pressure boiler tube Seamless steel pipe para sa boiler: GB3087-2018
4. High pressure seamless pipe para sa boiler: GB5310-2018 (ST45.8-Ⅲ type)
5. High-pressure seamless steel pipe para sa fertilizer equipment: GB6479-2018
6, Seamless steel pipe para sa geological drilling: YB235-2018
7, Seamless steel pipe para sa oil drilling: YB528-2018
8. Seamless steel pipe para sa petroleum cracking: GB9948-2018
9, Espesyal na seamless pipe para sa oil drill collar: YB691-2018
10. Seamless steel pipe para sa kalahating baras ng sasakyan: GB3088-2018
11. Seamless steel pipe para sa mga barko: GB5312-2018
12. Cold-drawn cold-rolled precision seamless steel pipe: GB3639-2018
| 20G seamless steel pipe specification table | |||
| 20G seamless steel pipe specification table | Pagtutukoy | Pagtutukoy | Pagtutukoy |
| 10*2 | 38*4.5 | 60*7 | 108*4 |
| 14*2 | 38*5 | 60*8 | 108*4.5 |
| 14*3 | 38*6 | 63.5*3 | 108*5 |
| 18*3 | 40*2 | 63.5*3.5 | 108*6 |
| 19*2 | 40*3.5 | 63.5*4 | 108*7 |
| 19*2.75 | 42*3 | 63.5*4.5 | 108*8 |
| 19*3 | 42*3.5 | 63.5*5 | 108*9 |
| 20*2 | 42*4 | 63.5*6 | 108*10 |
| 22*2 | 42*4.5 | 63.5*9 | 108*12.5 |
| 22*2.5 | 42*5 | 63.5*10 | 114*4 |
| 22*3 | 45*2.5 | 68*4 | 114*4.5 |
| 22*3.5 | 45*3 | 68*6 | 114*5 |
| 22*4 | 45*3.5 | 70*3 | 114*6 |
| 25*2 | 45*4 | 70*3.5 | 114*9 |
| 25*2.5 | 45*4.5 | 70*4 | 133*4.5 |
| 25*3 | 45*5 | 70*4.5 | 133*5 |
| 25*3.5 | 45*6 | 70*5 | 133*6 |
| 25*4 | 48*3 | 70*6 | 133*6.5 |
| 25.4*4.5 | 48*3.5 | 70*8 | 133*7 |
| 27*2.5 | 48*4 | 70*9 | 133*8 |
| 28*2.5 | 48*4.5 | 70*10 | 133*9 |
| 28*3 | 51*3 | 73*3.5 | 133*10 |
| 28*3.5 | 51*3.2 | 73*4 | 133*12.5 |
| 28*4 | 51*3.5 | 73*4.5 | 140*6 |
| 28*4.5 | 51*4 | 73*5 | 140*8 |
| 30*3 | 51*4.5 | 73*5.5 | 140*10 |
| 32*2 | 51*5 | 73*7 | 159*4.5 |
| 32*2.5 | 51*6 | 76*3.5 | 159*5 |
| 32*3 | 54*3.5 | 76*4 | 159*5.5 |
| 32*3.5 | 54.5*3.5 | 76*4.5 | 159*6 |
| 32*4 | 54*5 | 76*5 | 159*7 |
| 32*4.5 | 57*3 | 76*6 | 159*8 |
| 32*5 | 57*3.5 | 76*7 | 159*10 |
| 34*3 | 57*4 | 89*4 | 159*12 |
| 34*3.5 | 57*5 | 89*4.5 | 168*5 |
| 34*4 | 57*6 | 89*5 | 168*6 |
| 34*4.5 | 57*10 | 89*6 | 168*7 |
| 34*5 | 57*12 | 89*7 | 168*8 |
| 34*8 | 60*3 | 89*8 | 168*9 |
| 36*4 | 60*3.5 | 89*10 | 168*10 |
| 38*2.5 | 60*4 | 102*4 | 194*6 |
| 38*3 | 60*4.5 | 102*4.5 | 194*7 |
| 38*3.5 | 60*5 | 102*5 | 194*9 |
| 38*4 | 60*6 | 102*6 | 194*10 |
| 194*11 | 245*18 | 325*12 | 426*12 |
| 219*6 | 245*20 | 325*13 | 426*13 |
| 219*6.5 | 273*7 | 325*14 | 426*14 |
| 219*7 | 273*8 | 325*15 | 426*16 |
| 219*8 | 273*9 | 325*16 | 426*17 |
| 219*9 | 273*9.5 | 325*18 | 426*18 |
| 219*10 | 273*10 | 325*20 | 426*19 |
| 219*11 | 273*11 | 325*25 | 426*20 |
| 219*12 | 273*12 | 351*10 | 426*25 |
| 219*13 | 273*13 | 377*9 | 457*14 |
| 219*14 | 273*14 | 377*10 | 480*10 |
| 219*15 | 273*15 | 377*11 | 480*11 |
| 219*16 | 273*16 | 377*12 | 480*12 |
| 219*18 | 273*18 | 377*13 | 480*14 |
| 219*20 | 273*20 | 377*14 | 480*16 |
| 219*25 | 273*25 | 377*15 | 530*9 |
| 245*7 | 273*30 | 377*16 | 530*10 |
| 245*8 | 273*36 | 377*17 | 530*13 |
| 245*9 | 299*12 | 377*25 | 530*14 |
| 245*10 | 325*8 | 426*8 | 530*20 |
| 245*12 | 325*9 | 426*9 | |
| 245*14 | 325*10 | 426*10 | |
| 245*16 | 325*11 | 426*1 | |
