Seamless Mining Drill Pipes for Diamond Drilling Rods
Wireline Core Barrel Outer Tube WLA/WLB/WLN/WLH
Tubes should be made seamless. Outer tube rolling technique and
machining operations are optional.
Core Tube straightness is checked by rolling the tube on a
horizontal or slightly inclined flat surface.
When rolling, no clearances shall be seen between the rod ends and
the surface, nor between the middle
of the drill rod (core tube) and the surface.
International Standard ISO 10097-1 was prepared by Technical
Committee ISO/TC 82, Mining, Subcommittee
SC 6, Diamond core drilling equipment.
ISO 10097 consists of the following parts, under the general title
Wireline diamond core drilling equipment —
System A:
THE STEEL NORM:ISO10097-1 WIRELINE DIAMOND CORE DRILLING PIPES ,
DCDMA DRILL STEEL PIPES,BS4019 ROCK DRILLING PIPES,METRIC DRILLING
RODS,ASTM A519 SEAMLESS ALLOY STEEL TUBING FOR ROCK DRILLING RODS.
STEEL GRADE: SAE/AISI4130,SAE4140,SAE1541,1045,St52.3,XJY750,R780
| Product Name | Seamless Mining Drill Pipes for wireline |
| Material | 30CrMnSiA/XJY750 drill outer pipes |
| Delivery Condition | Stress relieved or Normalized |
| Standard | ISO10097-1 |
| Application | Wire-line drill rods and core tubes |
| Certificate | TS16949, ISO 9001 |
| HS code | 7304319000 |
| Delivery Time | 40 days |
| Pakcing | Bundles or Woodern Boxes |
The rock drilling pipes outer tubes dimension and tolerance as
follows:
| Seamless Drill Pipes (Outer tube) Normal Sizes: |
| Designation | Outside Diameter (mm) | Inside Diameter (mm) |
| Min | Max | Min | Max |
| WLA | 46.04 | 46.19 | 36.36 | 36.51 |
| WLB | 57.15 | 57.33 | 45.86 | 46.04 |
| WLN | 73.03 | 73.23 | 60.33 | 60.53 |
| WLH | 92.08 | 92.33 | 77.53 | 77.79 |
| | | | |
Materials used in the manufacture of the wireline drilling Outer
tubes specified in this part of ISO 1009
7 shall have the minimum mechanical properties as specified in Table
| The Mining Drill Pipes Mechanical Properties: |
| Type | Tensile Strength Mpa min | Yield Strength Mpa min | Elongation % min | HRC | Heat Treatment |
| Drill rods | 690 | 550 | 12 | 21-26 | Normalized |
| Core tubes | 850 | 550 | 14 | 21-26 | Normalized |
| | | | | |
The Products Pictures:
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WLA/WLB/WLN/WLH/WL
