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Drill Steel Pipe For Mineral Mining , Alloy Steel Grade Oil Drill Pipe

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Drill Steel Pipe For Mineral Mining , Alloy Steel Grade Oil Drill Pipe

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Brand Name : TORICH

Model Number : DCDMA (USA), BS4019 (UK), METRIC (SWEDEN)

Certification : ISO9001:2008, ISO14001:2008, TS16949

Place of Origin : China

MOQ : 5 TONS

Price : 1500-3000 USD/ton

Supply Ability : 10000 tons per year

Delivery Time : 5-8 weeks

Packaging Details : In hexagonal bundles

Material : Alloy Steel Grade

Type : DCDMA (USA), BS4019 (UK), METRIC (SWEDEN)

Production : Cold Drawn

Heat Treatment : +N, Q+T

Application : Wire Line,Drill Rod, Core Barrel

Standard : GB/T9808-2008

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Drill Pipes for Oil and Mineral Mining

Applications: For Geological Drill underground for Oil and Mineral, for Mining Exploration
Straightness, Concentricity, Mechanical Properties can meet the requirement of DCDMA (USA), BS4019 (UK), METRIC (SWEDEN)
Size range: O.D.:6-95mm W.T.:1-10mm L:max12000mm

Standard Producton Method Tube Size Tolerance
GB/T 9808-2008 Hot rolled OD (+1.0%D) +0.65
(-0.5%D) -0.35
WT ≤10 (+15%S) +0.45
(-10%S) -0.35
＞10 (+12.5%S, -10%S)
Cold Drawn OD ±0.50%D or ±0.20
WT ±8%S or ±0.15
Q(N)/ T118-2010 Cold Drawn OD OD ±0.40%D or ±0.20
WT WT ±7%S or ±0.15

Normal Sizes:

Designation Outside Diameter (mm) Inside Diameter (mm)
Min Max Min Max
A Wireline 44.45 44.70 34.82 35.07
B Wireline 55.55 55.90 45.95 46.30
N Wireline 69.95 70.30 60.05 60.30
H Wireline 88.90 89.38 77.62 78.10
P Wireline 114.30 114.78 102.79 103.27



Mechanical Properties:

Stee Grade Tensile Strength
Mpa min		 Yield Strength
Mpa min		 Elongation
% min		 HRC Heat Treatment
T600 790 600 14 ~ N
T750 850 750 14 26-31 QT
T850 950 850 14 28-33 QT

Chemical composition

Stee Grade C Si Mn P max S max Cu max Cr Mo B
T600
(45MnMoB)		 0.43-0.48 0.17-0.37 1.05-1.35 0.02 0.015 0.20 ~ 0.20-0.25 0.001-
0.005
T750
(30CrMnSiA)		 0.28-0.34 0.90-1.20 0.80-1.10 0.02 0.015 0.20 0.8-1.1 ~ ~
T850
4140		 0.38-0.43 0.17-0.35 0.70-0.90 0.02 0.015 0.20 0.9-1.1 0.15-
0.25		 ~

Mechanical Properties:

Steel Tensile Strength Mpa Yield Point Mpa Elongation % Heat treatment
Grade min
ZT380 640 380 14 Normlized
ZT490 690 490 12 Normlized
ZT540 740 590 12 Normlized
ZT590 770 590 12 Normlized
ZT640 790 640 12 QT
ZT740 840 740 10 QT
T850 950 850 15 QT

Drill Steel Pipe For Mineral Mining , Alloy Steel Grade Oil Drill Pipe Drill Steel Pipe For Mineral Mining , Alloy Steel Grade Oil Drill Pipe



















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