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Geological Drilling Pipe

Geological Drilling Pipe and Drill Rod GB/T9808-2008- Seamless steel tubes for drilling supply
Wireline Drill Rods Drill Pipe for Geological Drilling Supply
Steel grade:ZT380,ZT490,ZT520,ZT540,ZT590,ZT640,ZT740
ASTM A53 Hot Rolled, Cold Drawn High Strength Middle Carbon, High Carbon Alloy Steel Threading,Threaded, Lath Thread, Laser Slotted Drilling Pipe with Coupling supply
Hot Rolled,Cold Drawn Heat Treatment Condition Delivery 1m, 3m, 6m Fixed Length Seamless Steel Pipe Piles supplier
Availability:
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
StandardGB9808
Steel gradeZT380,ZT490,ZT520,ZT540,ZT590,ZT640,ZT740
oil drill pipe SizesOD: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 Detailsin 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

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