• Geological Drill Pipe with API Spec 5DP Standard System 1
  • Geological Drill Pipe with API Spec 5DP Standard System 2
  • Geological Drill Pipe with API Spec 5DP Standard System 3
Geological Drill Pipe with API Spec 5DP Standard

Geological Drill Pipe with API Spec 5DP Standard

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Loading Port:
Tianjin
Payment Terms:
TT OR LC
Min Order Qty:
1 m.t.
Supply Capability:
1000 m.t./month

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1. Structure of Geological Drill Pipe Description


We can supply all kinds of drill pipes that are consistent with API SPEC 5DP. Advanced drill pipe production lines can transfer the welding parameters to the best position to ensure the quality of welding zone; the heat treatment process with the feature of internal and external cooling at the same time can make a more reliable and stable mechanical character. Application of automatic weight, length measurement and automatic spray records can ensure products' traceability. Application of thickening and heating lines and 1250 tons of upsetting machine can ensure the thickening size meet the standard of API SPEC 5DR Using of CN furnace for whole pipe body heating and quenching, tempering machine's advanced heat treatment process can ensure the pipe's mechanical character. Tube hydraulic straightening machine ensures the straightness and coaxiality of pipe body.

Geological drill pipe is applicable for geographical, hydrographical, coal mining, terrestrial heat and engineering drilling. The major technical indexes of these seamless steel pipes are in compliance with international standard strictly.

The pipe materials for geographic drills have strict demands in term of sizes, forms, weights, technical specifications, test methods, test regulations, packing, marking and quality certificates. The seamless steel pipes used for geographic drills, which are produced by our company all adopt the original ex-factory identifications. If the contract says that goods should be delivered in terms of steel grades, then the identifications and quality certificates of the steel pipes should be indicated with steel grades. 


2. Main Features of Geological Drill Pipe


1) Advanced test for quality 

2) MTC provided 

3) API Standard


3. Geological Drill Pipe Images


Geological Drill Pipe with API Spec 5DP Standard

Geological Drill Pipe with API Spec 5DP Standard

Geological Drill Pipe with API Spec 5DP Standard


4. Geological Drill Pipe Specification


The main products include: Φ42, Φ50, Φ60, Φ63.5. The steel grades of drill pipes currently on the market are DZ40, DZ50, DZ60 and R780.


5. FAQ of Geological Drill Pipe


We have organized several common questions for our clients,may help you sincerely:


①How about your company?

One of the leading manufacturers and suppliers specializing in drill pipe products in China, mainly offering drill pipes including oil drill pipe, water well drill pipe, flat drill pipe, geological drill pipe and non-dig drill pipe.


Other than drill pipes we are also capable of supplying a wide variety of pipeline accessories, drill joints, steel pipe fittings, valves etc. consists of our one-stop sales. The integrated sales & service ensures customers with various demands an easier access for purchasing management.


②How to guarantee the quality of the products?

We have established the international advanced quality management system,every link from raw material to final product we have strict quality test;We resolutely put an end to unqualified products flowing into the market. At the same time, we will provide necessary follow-up service assurance.


③How long can we receive the product after purchase?

In the purchase of product within three working days, We will arrange the factory delivery as soon as possible.


Q:What is the compressive strength of steel pipes?
The compressive strength of steel pipes can vary due to several factors, including the grade of steel, the manufacturing process, and the dimensions of the pipes. On average, steel pipes have a compressive strength ranging from 250 MPa to 650 MPa. The higher the grade of steel used, the greater the compressive strength tends to be. Moreover, larger diameter pipes typically exhibit a higher compressive strength compared to smaller ones. It's worth noting that the compressive strength of steel pipes can also be affected by temperature, corrosion, and external loads. Therefore, it is essential to refer to specific standards, specifications, or manufacturer's data to obtain accurate and detailed information about the compressive strength of a particular steel pipe.
Q:How are steel pipes protected against fire?
Steel pipes are protected against fire through various methods such as applying intumescent coatings, using fire-resistant insulation, or encasing them in fire-rated enclosures. These measures help to delay the heat transfer and maintain the structural integrity of the pipes during a fire, allowing them to withstand high temperatures and prevent the spread of fire.
Q:How are steel pipes used in railway infrastructure?
Steel pipes are used in railway infrastructure for various purposes such as constructing bridges, tunnels, and track supports. They are also used for drainage systems, signaling and telecommunication cables, and as conduits for electrical wiring.
Q:How are steel pipes marked for identification and traceability?
Steel pipes are marked for identification and traceability through various methods. One common method is through the use of permanent markers or paint. These marks typically include important information such as the manufacturer's name or logo, the pipe's size and specifications, and the production date or batch number. In addition to surface marking, steel pipes may also be identified using tags or labels. These tags are usually made of durable materials such as metal or plastic and are securely attached to the pipe. They contain detailed information about the pipe, including its unique identification number, material composition, and any relevant certifications or standards it meets. Another method used for identification and traceability is the application of barcodes or QR codes. These codes can be scanned using specialized equipment or mobile applications, providing instant access to comprehensive information about the pipe's origin, production process, and quality control measures. Barcodes and QR codes offer a more efficient and automated way of tracking and tracing steel pipes throughout their lifecycle. Furthermore, some steel pipes may have embossed or engraved markings directly on their surface. These markings are typically indented into the metal and can withstand harsh conditions, ensuring long-term visibility and legibility. The goal of marking steel pipes is to ensure their proper identification and traceability throughout their lifecycle. This helps in quality control, maintenance, and inspection processes, as well as in ensuring compliance with regulatory requirements. By having clear and permanent markings, manufacturers, suppliers, and users can easily track and trace the history and specifications of steel pipes, enabling better management and accountability in various industries such as construction, oil and gas, and infrastructure development.
Q:Are steel pipes resistant to UV degradation?
No, steel pipes are not resistant to UV degradation.
Q:How are steel pipes measured?
Steel pipes are typically measured by their outer diameter (OD) and wall thickness. The OD is measured using a caliper or tape measure, while the wall thickness is determined using a specialized instrument called a micrometer. These measurements are crucial in determining the size and strength of steel pipes for various applications.
Q:How are steel pipes protected against rust?
Steel pipes can be safeguarded against rust in various ways. One popular approach entails applying a protective coating to the pipes. This can be achieved through the use of a paint layer, epoxy, or a corrosion-resistant coating like zinc or galvanized coatings. These coatings act as a barrier between the steel and moisture, preventing rust formation. Another technique for shielding steel pipes from rust involves cathodic protection. This method employs sacrificial anodes, typically composed of zinc or magnesium, which are affixed to the steel pipes. These anodes corrode instead of the steel, sacrificing themselves and preventing rust on the pipes. In addition to coatings and cathodic protection, corrosion inhibitors can also be employed to protect steel pipes against rust. Corrosion inhibitors are chemicals that are added to the water or fluid flowing through the pipes. These chemicals generate a protective film on the steel's surface, inhibiting corrosion and preventing rust formation. Furthermore, regular maintenance and inspections play a vital role in safeguarding steel pipes against rust. Promptly addressing any signs of damage or wear on the protective coatings is crucial to prevent rust formation. Additionally, ensuring that the pipes are properly cleaned and dried before applying protective coatings can enhance their effectiveness. In summary, a combination of protective coatings, cathodic protection, corrosion inhibitors, and regular maintenance is utilized to effectively shield steel pipes against rust and corrosion. This approach prolongs their lifespan and maintains their structural integrity.
Q:Is steel pipe made of profiles?
Large steel: large steel, I-beam, channel steel, angle steel and flat steel are hot rolled, round bar, Fang Gang, six angle iron in addition to hot rolling, there are forging, cold drawn and so on.
Q:How do you calculate the bending moment of a steel pipe?
To calculate the bending moment of a steel pipe, you need to consider both the applied load and the structural properties of the pipe. The bending moment is a measure of the internal forces within the pipe caused by the applied load. The bending moment can be calculated using the following equation: Bending Moment = Load x Distance Here, the load represents the external force acting on the pipe, and the distance is the distance from the point where the load is applied to the point where the bending moment is being calculated. In order to accurately calculate the bending moment, you must also consider the properties of the steel pipe. This includes the pipe's cross-sectional area, second moment of area (also known as the moment of inertia), and the modulus of elasticity. The second moment of area reflects the pipe's resistance to bending and can be calculated based on the dimensions of the pipe's cross-section. The modulus of elasticity represents the pipe's stiffness and can be obtained from material properties data. Once you have determined the load, distance, cross-sectional area, moment of inertia, and modulus of elasticity, you can plug these values into the bending moment equation to calculate the bending moment for the steel pipe. It is important to note that the calculation of bending moment assumes linear elastic behavior, which means that the pipe does not exceed its elastic limit and does not undergo plastic deformation. If the pipe is subjected to loads that exceed its capacity, the calculation of bending moment may not accurately represent the actual behavior of the pipe. In such cases, it is advisable to consult with a structural engineer or use more sophisticated analysis methods to accurately assess the bending moment.
Q:How are steel pipes transported from the manufacturing site to the construction site?
Steel pipes are typically transported from the manufacturing site to the construction site using various methods such as trucks, trains, ships, or even by air. The most common mode of transportation is trucks, which allow for easy and efficient delivery directly to the construction site.

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