30CrMnSiA NQ Geological Core Drilling Rod - 69.9mm OD, 1500m Depth Capacity, DCDMA Standard
Price:
$50-200
MOQ:
50 meters
Delivery Time:
Negotiable
Brand:
ROSCHEN
Product Description
Wireline Heat Treatment HWT / Q Series Geological Core Drilling Rod and Casing Tubes
ROSCHEN wireline drill rods are manufactured using CNC machines to DCDMA standards from high-quality heat-treated alloy steel. We also produce various sizes of casing tubes for comprehensive drilling solutions.
Key Features
- High-quality alloy steel construction
- Thru-wall heat-treated tube body
- Consistent concentricity and straightness
- Precision tapered threads
- Superior wear resistance and toughness
- Compatible with DCDMA standard equipment
Material Specifications
Manufactured from premium 30CrMnSiA / XJY850 alloy steel, one of the world's best materials for geological drilling applications.
Technical Specifications - 30CrMnSiA NQ Drilling Rod
| Parameter | Specification |
|---|---|
| Rod Size | 70.1*5*3050 mm |
| OD/ID | 69.9/60.3 mm |
| Length | 1.5 or 3 m |
| Thickness | 5.5 mm |
| Weight | 8.8 kg/m |
| Tensile Strength | 960 MPa |
| Yield Strength | 840 MPa |
| Hardness | 30 HRC |
| Maximum Core Depth | 1500 m |
Quality Control Process
Raw Material Inspection: All steel tubes undergo spot checks to verify composition and specifications match supplier reports.
Heat Treatment: Tru-wall or both-ends thermal processing improves material strength and thread wear life, with post-treatment testing of strength, hardness, and dimensional stability.
Thread Processing: CNC lathes and form cutters ensure precision thread accuracy, minimizing human error.
Surface Treatment: Thread surfaces are cleaned and phosphated to remove burrs and improve surface conditions.
Packaging Options
Available in steel belt or iron frame packaging with the following specifications:
BQ Steel Belt: 37 pieces, 3.0×0.4×0.4 m, 670 kg
BQ Iron Frame: 30 pieces, 3.0×0.35×0.3 m, 550 kg
NQ Steel Belt: 37 pieces, 3.0×0.5×0.5 m, 900 kg
NQ Iron Frame: 25 pieces, 3.0×0.38×0.39 m, 610 kg
HQ Steel Belt: 37 pieces, 3.0×0.625×0.625 m, 1300 kg
HQ Iron Frame: 25 pieces, 3.0×0.46×0.47 m, 890 kg
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
ROSCHEN GROUP
Location
65 EAST XINHUAN ROAD, SHANGHAI, CHINA
Contact Person
Bill, George, Michael