Cold Drawn Seamless Drill Pipe 4000 - 12500mm For Geological Drilling / Mining
Brand Name:TORICH
Certification:ISO9001 ISO14001 TS16949
Model Number:GB/T 9808-2008, JIS G3465-2006
Minimum Order Quantity:5 tons
Delivery Time:30-45 days
Payment Terms:T/T, L/C, D/A, D/P, Western Union, MoneyGram
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Ningbo Zhejiang China
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Suite 1004, Hongan Plaza, #258 Die Yuan Road, Yinzhou District, Ningbo City, China
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Cold Drawn Seamless Drill Pipe for Geological Drilling&Mining,GB/T 9808-2008, JIS G3465-2006,TORICH
Cold Drawn Seamless Drill Pipe for Geological Drilling&Mining,GB/T 9808-2008, JIS G3465-2006,TORICH
Standard: GB/T 9808-2008
Application: for wire-line drill rods,core barrel tubes,drill rods coupling and casing
Size range:
OD:5-420mm WT:0.5-50mm Length:max12000mm
Normal sizes
| Wire-line drill rods | Core Barrel Tubes | Casing | Coupling |
| 43.5*4.75 | 31*2 | 45*4.5 | 46*6.5 |
| 53*4.5 | 41*2 | 54*4.5 | 56*7 |
| 55.5*4.75 | 43*2.5 | 58*4.5 | 58*7 |
| 71*5 | 56*2.5 | 73*5 | 74*7.5 |
| 71*5.5 | 56*2.5 | 73*5 | 75*8 |
| 89*5 | 71*3 | 89*6 | 94*9.5 |
| 55.5*4.8(BQ) | 42.9*2.4 | 57.2*5.6 | |
| 70.1*5(NQ) | 55.62*8 | 73*6.25 | |
| 89*5.6(HQ) | 73*3.15 | 92.1*7.15 |
Steel grade and chemical compositions
| Steel | Tensile Strength | Yield Point | Elongation | Heat Treatment |
| Grade | Mpa(Min) | Mpa(Min) | %(Min) | |
| ZT380 | 640 | 380 | 14 | NORMILIZED |
| ZT490 | 690 | 490 | 12 | NORMILIZED |
| ZT540 | 740 | 540 | 12 | NORMILIZED |
| ZT590 | 770 | 590 | 12 | NORMILIZED |
| ZT640 | 790 | 640 | 12 | QT |
| ZT740 | 840 | 740 | 10 | QT |
| XJY850 | 950 | 850 | 15 | QT |
Cold Drawn Seamless Drill Pipe for Geological Drilling&Mining,GB/T 9808-2008, JIS G3465-2006,TORICH
Cold Drawn Seamless Drill Pipe 4000 - 12500mm For Geological Drilling / Mining
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