NANJING STETON ENGINEERING MACHINERY CO.,LTD
| Supply Ability | 5000 pieces per month |
| Packaging Details | 25 pieces per pack |
| Material | Carbon steel, High Manganese Steel |
| Process | Forging+Machining+surface Treatment |
| Color | customized |
| Use | Coal Mining |
| features | hot rolling，high strength |
| Applicable Industries | Building Material Shops, Manufacturing Plant |
| Brand Name | DAWN TOOLS |
| Model Number | D24 |
| Certification | ISO9001 |
| Place of Origin | CHINA |
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Product Specification
| Supply Ability | 5000 pieces per month | Packaging Details | 25 pieces per pack |
| Material | Carbon steel, High Manganese Steel | Process | Forging+Machining+surface Treatment |
| Color | customized | Use | Coal Mining |
| features | hot rolling，high strength | Applicable Industries | Building Material Shops, Manufacturing Plant |
| Brand Name | DAWN TOOLS | Model Number | D24 |
| Certification | ISO9001 | Place of Origin | CHINA |
| High Light | API Standard Gray HDD Drill Rod ，ISO9001 Coal Mining HDD Drill Rod ，Hot Rolling Machining Drill Rod | ||
API Standard Black Gray Red HDD Drill Rod For Coal Mining
Drill Pipe Usage Notes
1. New drill pipe should be pasted oil before connection
2. Make up and break at least 3 times before drilling
3. Hard bending and plastic coating can be processed according to clients’ special requirements.
| Rod dia(mm) | Rod Length(mm) | Thickness (mm) | Connect Thread | Trigger Slot | |
| inch | mm | ||||
| 3 | 76 | 1000-6000 | 5 | API2 3/8”REG | 57/64.5 |
| 3 | 76 | 1000-9000 | 8 | API2 3/8”REG | 57/64.5 |
| 3 1/2 | 89 | 1000-6000 | 6 | API2 3/8”REG | 70/64 |
| 3 1/2 | 89 | 1000-9600 | 8 | API2 3/8”REG | 70/64 |
| 4 | 102 | 1000-9000 | 10 | API2 3/7”REG | 76/89 |
| 4 1/2 | 114 | 1500-7620 | 6 | API3 1/2”REG | 89/95 |
| 4 1/2 | 114 | 1500-9140 | 8 | API3 1/2”REG | 89/95 |
| 4 1/2 | 114 | 1500-9140 | 10 | API3 1/2”REG | 89/95 |
| 4 1/2 | 114 | 1500-9140 | 18 | API3 1/2”REG | 89/95 |
| 5 | 127 | 1500-9500 | 12 | API3 1/2”REG | 89 |
| 5 | 127 | 1500-9500 | 14 | API3 1/2”REG | 89 |
| 5 | 127 | 1500-9500 | 18 | API3 1/2”REG | 89 |
| 5 1/2 | 140 | 1500-9500 | 9 | API4 1/2”REG or 4’FH | 114 |
| 5 1/2 | 140 | 1500-9500 | 10 | API4 1/2”REG or 4’FH | 114 |
| 5 1/2 | 140 | 1500-9500 | 12 | API4 1/2”REG or 4’FH | 114 |
To guarantee premium quality product, all products material is sourced from Shanghai Baosteel specially developed hot rolling high strength alloy structure tube for oil and gas drilling tools without considering about high cost.
This material uses external refining and vacuum degassing technology with even composition and high purity. The lowest content of harmful chemical elements such as phosphor and sulfur is reached.
Nondestructive test is performed according to NDT standard Level 2 with a combination of eddy and ultrasonic to guarantee material quality without any defect.
Each of drill pipe is treated by shot peening. After shot peening treatment, the surface of the drill pipe and thread gets residual pressure stress. This stress can improve drill pipe anti-fatigue service life. Shot peening treatment on thread can help thread compound adhering to thread. Thread service life is improved.
HDD drill pipe is a tool applicable for transferring torque and tension of drillers in the process of directional drilling construction. Due to the fact that it has to bear torsion, tension, bending, friction and vibration in the process of directional construction, the requirements for processing process are very strict.
The raw materials selected by our company are all the alloy structure steels for geographical usage produced by Baogang Steel. After laboratory tests, both ends of a pipe are upsetted and proceeded to overall heat treatment, then friction welded. Before finished drill pipes are plated and packaged, a series of tests have to be implemented including hardness, metallurgical structure, physical performances, etc.
We Can Provide
1. Test Report & MTC
2. Ready stock for normal sizes
3. Customized sizes welcomed
4. One stop service
Company Details
Business Type:
Manufacturer,Trading Company
Year Established:
2017
Total Annual:
3000000-5000000
Employee Number:
100~120
Ecer Certification：
Active Member
"Steton Machinery", founded in 2017, which is specialized in research & development, manufacturing , sales and service for Horizontal Directional Drilling Machine and Water Well Drilling Machine. Our main products are "S" series of Horizontal Directional Drilling Machine, and... "Steton Machinery", founded in 2017, which is specialized in research & development, manufacturing , sales and service for Horizontal Directional Drilling Machine and Water Well Drilling Machine. Our main products are "S" series of Horizontal Directional Drilling Machine, and...
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