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English  |
| Quantity: | |
|---|---|
OD19-610mm
Ruiyang
730490
GB/T 9808-2008 -Seamless steel tubes for drilling and Geological well drilling core barrel,geological drilling pipe supply from China
GB/T 9808 Drilling seamless pipe applies to the geological core drilling, water well drilling, hydrogeological drilling, engineering drilling casing material, core pipe materials and casing collar material Seamless steel pipes, ordinary drill pipe tool joint material materials seamless steel tubes, steel grain drill material seamless steel pipe, rope coring drill rod connected materials Head material seamless steel pipe, drill collar drill collars lock joint material materials seamless steel tubes.
Our cold drawn steel pipe detailed as below in table
| GB9808 Geological drilling pipes details | ||
|---|---|---|
| Standard | GB9808 | |
| Steel grade | ZT380,ZT490,ZT520,ZT540,ZT590,ZT640,ZT740 | |
| oil drill pipe Sizes | OD:19-610mm WT : 0.5-50mm Length : 4000-12500mm | |
| GB/T 9808 Alloy Steel Grade Oil Drill Mineral Mining Seamless Steel Tubes Technique | Cold Drawn | |
| Surface | oiled | |
| Packaging Details | in wooden boxes or in hexagonal bundles | |
| Usage | Oil Drill Mineral Mining | |
GB/T 9808 Alloy Steel Grade Drill Steel Pipe,Mineral Mining Seamless Steel Tubes;Tolerance of Outer Diameter and Wall Thickness as below:
Standard | Production Method | Tube Size | Tolerance | |
GB/T9808-2008 | Hot Rolled | OD | (+1.0%D) or +0.65 (-0.5%D) -0.35 | |
WT | ≤10 | (+15%S)or +0.45 (-10%S) -0.35 | ||
>10 | (+12.5%S, -10%S) | |||
Cold Drawn(rolled) | OD | ±0.50%D or ±0.20 | ||
WT | ±8%S or ±0.15 | |||
Q(N)/T118-2010 | Cold Drawn | OD | ±0.40%D or ±0.20 | |
WT | ±7%S or ±0.15 | |||
GB/T9808 Oil Drill Steel Pipe Pickled And Annealed For Drill Rods and Mechanical Property
Steel Grade | Tensile Strangth Rm/MPa | Specifies the non-proportional extension strength Rp0.2/MPa | Percentage elongation after fracture A/% |
No less than | |||
ZT380 | 640 | 380 | 14 |
ZT490 | 690 | 490 | 12 |
ZT520 | 780 | 520a | 15b |
ZT540 | 740 | 540 | 12 |
ZT590 | 770 | 590 | 12 |
ZT640 | 790 | 640 | 12 |
ZT740 | 840 | 740 | 10 |
Welcome contact us for Geological Drilling Pipe inquiry
GB/T 9808-2008 -Seamless steel tubes for drilling and Geological well drilling core barrel,geological drilling pipe supply from China
GB/T 9808 Drilling seamless pipe applies to the geological core drilling, water well drilling, hydrogeological drilling, engineering drilling casing material, core pipe materials and casing collar material Seamless steel pipes, ordinary drill pipe tool joint material materials seamless steel tubes, steel grain drill material seamless steel pipe, rope coring drill rod connected materials Head material seamless steel pipe, drill collar drill collars lock joint material materials seamless steel tubes.
Our cold drawn steel pipe detailed as below in table
| GB9808 Geological drilling pipes details | ||
|---|---|---|
| Standard | GB9808 | |
| Steel grade | ZT380,ZT490,ZT520,ZT540,ZT590,ZT640,ZT740 | |
| oil drill pipe Sizes | OD:19-610mm WT : 0.5-50mm Length : 4000-12500mm | |
| GB/T 9808 Alloy Steel Grade Oil Drill Mineral Mining Seamless Steel Tubes Technique | Cold Drawn | |
| Surface | oiled | |
| Packaging Details | in wooden boxes or in hexagonal bundles | |
| Usage | Oil Drill Mineral Mining | |
GB/T 9808 Alloy Steel Grade Drill Steel Pipe,Mineral Mining Seamless Steel Tubes;Tolerance of Outer Diameter and Wall Thickness as below:
Standard | Production Method | Tube Size | Tolerance | |
GB/T9808-2008 | Hot Rolled | OD | (+1.0%D) or +0.65 (-0.5%D) -0.35 | |
WT | ≤10 | (+15%S)or +0.45 (-10%S) -0.35 | ||
>10 | (+12.5%S, -10%S) | |||
Cold Drawn(rolled) | OD | ±0.50%D or ±0.20 | ||
WT | ±8%S or ±0.15 | |||
Q(N)/T118-2010 | Cold Drawn | OD | ±0.40%D or ±0.20 | |
WT | ±7%S or ±0.15 | |||
GB/T9808 Oil Drill Steel Pipe Pickled And Annealed For Drill Rods and Mechanical Property
Steel Grade | Tensile Strangth Rm/MPa | Specifies the non-proportional extension strength Rp0.2/MPa | Percentage elongation after fracture A/% |
No less than | |||
ZT380 | 640 | 380 | 14 |
ZT490 | 690 | 490 | 12 |
ZT520 | 780 | 520a | 15b |
ZT540 | 740 | 540 | 12 |
ZT590 | 770 | 590 | 12 |
ZT640 | 790 | 640 | 12 |
ZT740 | 840 | 740 | 10 |
Welcome contact us for Geological Drilling Pipe inquiry
