Tube for Core Barrel
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.
Parameter
|
Product Name |
Wireline core barrel outer tube and inner tube |
|
Standard |
GB/T 9808, ASTM A519, EN10305-1 |
|
Material |
30CrMo, 42CrMo, 45MnMoB, 4130, 4140 |
|
Dimension |
OD: 16-245mm, WT1-32mm |
|
Straightness |
0.5/1000mm max |
|
Delivery Condition |
Normalized (+N), Stress Relieved Annealed (SRA) |
|
Certificate |
ISO 9001, IATF 16949 |
|
Applications |
Wireline core barrel inner tube and outer tube |
|
Designation |
Outer tubes |
Inner tubes |
||
|
OD(mm) |
ID (mm) |
OD (mm) |
ID (mm) |
|
|
WLA |
46.05 |
36.5 |
32.54 |
28.58 |
|
WLB |
57.15 |
46.05 |
42.85 |
38.1 |
|
WLN |
73.03 |
60.33 |
55.58 |
49.99 |
|
WLH |
92.08 |
77.8 |
73.03 |
66.8 |
|
WLP |
117.48 |
101.6 |
95.25 |
88.9 |
|
Steel Grade |
Delivery Condition |
Tensile Strength (Mpa) |
Yield Strength (Min) |
Elongation (Min) |
Hardness |
|
4130 |
+SR |
813 |
690 |
15% |
≥HRC24 |
|
4140 |
+SR |
813 |
690 |
15% |
≥HRC26 |
|
45MnMoB (DZ60) |
+N |
790 |
600 |
14% |
- |
Customization Process
Communication needs: The length will be determined in accordance with the customer's specifications.
Fine production according to the confirmed design, strict control of every link.then we can produce mass production.
Quality inspection and packaging: After the product is completed, we will check three times and package it according to your needs.
Ensure that the product is delivered within the agreed time.
Benefits of Tube For Core Barrel
● Exhibits an excellent microstructure with a grain size of ≥9.
● Demonstrates high straightness with a tolerance of ≤0.5/1000mm.
● Features tight dimensional tolerances and low eccentricity (≤5%).
● Offers low residual hoop stress (≤65MPa) upon request, specifically designed for highly demanding drilling conditions.
We will help you to choose the best shipping way according to your detail requirements.
Our goal is to offer you the best shipping options, no matter where you live. We deliver to hundreds of customers across the world every day, and we strive to provide you with services of the highest level.
1. The time frame of an order delivery is divided into two parts:
Processing time: 7-14 Days
Shipping time: 20~30 Days
2. Shipping methods: USPS,DHL, FeDex etc.
|
Payment |
30% advance payment, 70% balance against B/L copy. |
|
Packaging |
Long pipe: Hexagonal bundles with steel-hooped. |
Certificate
FAQ