Tube for Mining and Drilling
Zhejiang Dingxin Steel Tube Manufacturing Co., Ltd., founded in 2004, is a leading precision seamless steel tube manufacturer in China.
The steel pipes we manufacture primarily encompass hydraulic cylinder tube, automotive tube, tube for mining and drilling, as well as precision seamless steel tube.
Why Choose us
Our Certifications
Certified under ISO 9001 and IATF 16949.
Production Capacity
With an annual production capacity exceeding 30,000 tons.
Production Experience
Dingxin possesses over 20 years of experience in the production of precision seamless steel tubes, coupled with a fully integrated in-house manufacturing process and comprehensive quality management systems.
Specification
|
Product Name |
N80 J55 K55 casing pipe |
|
Standard |
API 5CT, ASTM A519, EN10305-1 |
|
Material |
N80 (N80-1, N80-Q), J55, K55 |
|
Dimension |
OD: 16-245mm, WT1-32mm |
|
Length |
According to client’s requirements |
|
Straightness |
Standard Class: 0.5/1000mm; Superior Class: 1/3000mm |
|
Delivery Condition |
Stress Relieved Annealed (SRA) |
|
Certificate |
ISO 9001, IATF 16949 |
|
Applications |
Drill rod, casing |
|
Steel Grade |
C |
Si |
Mn |
P |
S |
Cr |
Ni |
Cu |
Al |
V |
|
N80 |
0.34~0.38 |
0.20~0.35 |
1.45~1.70 |
≤0.020 |
≤0.015 |
≤0.15 |
|
|
|
0.11~0.16 |
|
J55 |
0.34~0.39 |
0.2~0.35 |
1.25~1.5 |
≤0.020 |
≤0.015 |
≤0.015 |
≤0.2 |
≤0.2 |
≤0.02 |
|
|
Spec. |
OD (mm) |
ID (mm) |
|
AW |
57.1 |
48.4 |
|
BW |
73.0 |
60.3 |
|
NW |
88.9 |
76.2 |
|
HW |
114.3 |
101.6 |
|
PW |
139.7 |
127 |
|
Steel Grade |
Delivery Condition |
Tensile Strength Min (Mpa) |
Yield Strength Min (Mpa) |
Elongation Min |
|
N80-Q |
Quenched and tempered |
≥689 |
552~758 |
- |
|
N80-1 |
Normalized and tempered |
≥689 |
552~758 |
- |
|
J55 |
Normalized |
655 |
379 |
11% |
Types of Tube For Mining and Drilling
The tube for mining and drilling produced by our company mainly include the following types:
N80 J55 K55 Casing Pipe
Casing pipes are what are place in the hole once the drill if finished. This keeps the shape for the hole and offers a framework to work with. This strengthens the hole that was just drilled and takes away the hazard of the hole collapsing and effecting a cave in. The tubes are mainly alloy steel tube to withstand a lot of inner earth pressure.
NW HW PW Drill Casing Pipe 4130 1541 30CrMo 40Mn2 N80 R780 J55
Seamless casing pipe is used to prevent borehole collapsing, which are widely used in geotechnical applications. Even though casing tube is not subject to the same stresses as drill rod, we apply the same care in design, manufacturing and quality assurance disciplines for all our tubular products.
Wireline Core Barrel Outer Tube And Inner Tube
Wireline core barrel plays an important role as this is what the diamond drillers use to recover core. A core barrel typically consists of a double tube system consisting of an inner tube and outer tube.
Wireline Drilling 42CrMo4 34CrMo4 42CrMo 30CrMo 4130 4140 Tube
30CrMo, 30CrMo4, 42CrMo, 42CrMo4, 4130, 4140 are high quality CrMo alloy steels suitable for heat treatment. Tubes are available in a variety of strength classes with a wide range of yield strength (Rp0.2) ranging from 600Mpa to 950pa.
30CrMnSiA Quenched And Tempered Drill Rod Tube
30CrMnSiA is a high-quality medium carbon alloy steel suitable for quenching and tempering. Adding manganese and silicon significantly improves toughness and harden capability.
GB/T 9808 45MnMoB Normalized Drill Rod Tube
GB/T 9808, named as seamless steel tubes for drilling. This standard applies to the geological core drilling, well drilling, hydrogeological drilling, engineering drilling casing material, core tube materials and materials with seamless steel casing collar, ordinary drill pipe tool joints feed materials and seamless steel pipes, steel particles Drill material seamless steel pipe, rope coring drill pipe tool joints feed materials and seamless steel pipes, drill collars, drill collar lock connector feed materials and seamless steel pipes.
Benefits of Tube For Mining And Drilling
1541 Seamless Steel Tube
1541 seamless steel tube have many advantages, including:
High strength and rigidity
1541 seamless steel tubes have high strength and rigidity, so they can withstand a lot of pressure and bending forces. This property makes seamless steel tube an important material for structures such as bridges, buildings and vehicles.
High temperature resistance
1541 seamless steel tube has good high temperature resistance and can maintain stable performance at high temperatures. Therefore, it can be used in various high-temperature applications, such as steam pipes, heat exchangers and stoves.
Corrosion resistance
1541 seamless steel tubes have a smooth surface and no seams, so they have good corrosion resistance. It can be used in the transportation and storage of various chemicals, as well as in marine engineering and other fields.
Precision processing
1541 seamless steel tubes have smooth inner and outer surfaces, small errors, and high dimensional stability. They are suitable for engineering fields that require high precision, such as aviation, aerospace, and nuclear industries.
Cold Drawn Alloy Steel Tubes For Mining And Drilling
Cold drawn alloy steel tubes for mining and drilling have many advantages, including:
Superior Durability and Longevity
The manufacturing process enhances the structural integrity of the tube, making it more resistant to wear and tear. The absence of a welded seam reduces the likelihood of failure under high pressure or stress.
High Dimensional Accuracy
The cold drawing process ensures tight dimensional tolerances, a critical factor for industries like automotive and aerospace. Precision allows the tubes to fit seamlessly into intricate systems, reducing the need for modifications and saving time during assembly.
Enhanced Mechanical Properties
The cold drawing process enhances the mechanical properties of the steel, such as tensile strength and hardness. This makes the best seamless cold drawn steel tube suitable for demanding applications that require a combination of strength and flexibility.
Improved Aesthetic and Functional Surface Finish
The surface finish achieved through the cold drawing process is not only aesthetically pleasing but also functional. A smoother surface reduces friction, improving efficiency in hydraulic and pneumatic systems.
Delivery Information
Shipping Methods
We offer a variety of shipping options, including sea freight, railway transportation , to meet the diverse needs of our customers.
Estimated Delivery Time
We will provide you with the estimated delivery time for your order, which will be clearly stated in the formal order to ensure your rights are protected, allowing you to arrange for the receipt of your goods in a timely manner.
Order Tracking
We provide order tracking services, allowing you to stay informed about the current status and expected arrival time of your order. Detailed inspection information and shipping manifests, including photos and videos, are provided to ensure the security of your transactions.
|
Payment |
30% advance payment, 70% balance against B/L copy. |
|
Packaging |
In Bundles Or In Wooden Boxes. |
|
Delivery Time |
45 days |
Certificate
FAQ