Alloy Steel Grade Mineral Drill Pipe

Alloy Steel Grade Mineral Drill Pipe

Unit Price: USD 1500.00 - 3000.00 / Ton
Payment Type: L/C,T/T
Terms of Trade: FOB
Min. Order: 5 Ton
Delivery Time: 45 Days

Basic Info


Additional Info

Packaging: oil antirust in hexagonal bundles or in carbons or woodenboxes

Productivity: 12000Ton/Year

Brand: Torich

Transportation: Ocean

Place of Origin: China

Supply Ability: 12000Ton/Year

Certificate: GB/T 19001-2008 , ISO 9001:2008 , TS16949

Product Description

Drill Pipes for Oil and Mineral Mining


Drill pipes Material: Alloy Steel Grade

Oil and Mineral mining tubes Type: DCDMA (USA), BS4019 (UK), METRIC (SWEDEN)


Drill pipe Production: Cold Drawn

Heat Treatment: +N, Q+T


Application: Wire Line,Drill Rod, Core Barrel Standard: GB/T9808-2008

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),



Size range:





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
% 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
0.43-0.48 0.17-0.37 1.05-1.35 0.02 0.015 0.20 ~ 0.20-0.25 0.001-
0.28-0.34 0.90-1.20 0.80-1.10 0.02 0.015 0.20 0.8-1.1 ~ ~
0.38-0.43 0.17-0.35 0.70-0.90 0.02 0.015 0.20 0.9-1.1 0.15-



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


Drilling Parts to match the Geogloy Steel Tubes:

Drill Pipes for Oil and Mineral Mining factory Drill Pipes for Oil and Mineral Mining




1.  Incoming Raw Material Inspection

2.  Raw Material Segregation to avoid steel grade mix-up

3.  Heating and Hammering End for Cold Drawing

4.  Cold Drawing and Cold Rolling, on line inspection

5.  Heat Treatment,  +A,  +SRA, +LC, +N,  Q+T

6.  Straightening-Cutting to specified length-Finished Measuring Inspection

7.  Machanical Testing in own labs with Tensile Strength, Yield Strength, Elongation,   Hardness, Impact,     Mictrostruture etc

8.  Packing and Stocking.



  • 100% of our steel tubes are dimensionally checked
  • 100% of our steel tubes are visually checked to assure they have a perfect surface condition and no surface defects.
  • 100% eddy current test and ultrosonic test to eliminate longitudinal and transversal defects.




Chemical Composition Testing                                               Chemical Testing


Computer Recording Testing Result                                    Portable Chemical Analyzing



Impact Testing                                                                           Hardness Testing



Tensile Strength Testing                                                           ET & UT testing


  • Standard:ISO9001-2008


    Issue Date:2012-12-12

    Expiry Date:2015-12-11

    Scope/Range:Manufacture and After-Sales Service of Seamless Steel Tube

    Issued By:IAF

  • Standard:ISO14001-2008


    Issue Date:2012-12-12

    Expiry Date:2015-12-11

    Scope/Range:Manufacture and Related Management Activities of Seamless Steel Tube

    Issued By:IAF

  • Standard:TS16949


    Issue Date:2015-01-07

    Expiry Date:2018-01-06

    Scope/Range:Cold Drawn Seamless Steel Tubes

    Issued By:IATF

  • Standard:Pressure Vessel


    Issue Date:2012-04-13

    Expiry Date:2015-04-12

    Scope/Range:Seamless Steel Tubes

    Issued By:State Bureau of Quality Technical Supervision

  • Standard:CE PED AD 2000 W0

    Number:072021423 WP101908

    Issue Date:2008-07-01

    Expiry Date:2018-07-01

    Scope/Range:Seamless Steel Tubes

    Issued By:TUV Nord

  • Standard:CE PED

    Number:072021423 WZ1019 08

    Issue Date:2008-07-01

    Expiry Date:2016-07-01

    Scope/Range:Seamless Steel Tubes

    Issued By:TUV NORD



Looking for ideal Cold Drawn Drilling Steel Pipe Manufacturer & supplier ? We has a wide selection at great prices to help you get creative. All the Sonic Drilling Alloy Pipes are quality guaranteed. We are China Origin Factory of Drill Tubes for Geology Exploring. If you have any question, please feel free to contact us.

Product Categories : Drilling Steel Pipes

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