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Oilfield 45MnMoB Core Tubes For Geological Drilling Rods
Oilfield 45MnMoB Core Tubes For Geological Drilling Rods
Oilfield 45MnMoB Core Tubes For Geological Drilling Rods
Oilfield 45MnMoB Core Tubes For Geological Drilling Rods
Oilfield 45MnMoB Core Tubes For Geological Drilling Rods
Oilfield 45MnMoB Core Tubes For Geological Drilling Rods
Specifications
Brand Name :
HONGBAO
Model Number :
HG-OP
Certification :
PED, ISO9001,DNV
Place of Origin :
China
MOQ :
1MT
Price :
Negotiable
Payment Terms :
L/C,T/T
Supply Ability :
3000MT/Month
Delivery Time :
Negotiable
Packaging Details :
As required
Steel Grade :
45MnMoB
Execution Standard :
ASTM A519, DIN2391, EN10305-1
OD Range :
30-139.7mm
WT Range :
3-19mm
Description
Oilfield 45MnMoB Core Tubes for Geological Drilling Rods​
Engineered for excellence in demanding geological exploration, our 45MnMoB Core Tubes​ are precision-manufactured high-strength alloy steel tubes designed exclusively for integration with geological drilling rods. As a critical component in core sampling systems, these tubes safeguard the integrity of rock and soil samples during deep-well drilling, ensuring accurate data collection for oilfield exploration, mineral resource assessment, and hydrogeological surveys.
Crafted from 45MnMoB low-alloy structural steel, a material renowned for its exceptional mechanical properties, the core tubes deliver unmatched performance in harsh downhole environments. The alloy’s optimized composition—blending manganese (Mn), molybdenum (Mo), and boron (B)—endows the tubes with superior tensile strength (≥790 MPa), high yield strength (≥600 MPa), and outstanding wear resistance. These attributes enable the tubes to withstand extreme axial loads, abrasive rock formations, and cyclic stress encountered in deep drilling operations, minimizing deformation and extending service life.
Key features include:
  • Enhanced Corrosion Resistance: A specialized heat treatment process (quenching + tempering) forms a dense oxide layer on the surface, protecting against corrosive fluids (e.g., saline water, acidic mud) common in oilfield wells.
  • Precision Machining: Strict adherence to API 5CT and ISO standards ensures tight dimensional tolerances (outer diameter ±0.1mm, wall thickness ±0.05mm) and smooth inner surfaces (Ra ≤1.6μm), reducing friction during sample retrieval and preventing core damage.
  • Leak-Proof Design: Seamless construction and advanced welding techniques eliminate weak points, guaranteeing zero fluid ingress that could contaminate samples or compromise drilling efficiency.
  • Versatile Compatibility: Available in standard sizes (OD: 73–127mm, length: 1–6m) and customizable configurations (e.g., threaded ends per customer specs), seamlessly integrating with most geological drilling rod assemblies.

Chemical Composition

Steel Grade C Si Mn P S Cr Mo B

4130

 0.28-0.33 0.15-0.35 0.40-0.60 ≤0.040 ≤0.040 0.80-1.10 0.15-0.25
4140 0.38-0.43 0.15-0.35 0.75-1.00 ≤0.040 ≤0.040 0.80-1.10 0.15-0.25
45MnMoB 0.43-0.48 0.17-0.37 1.05-1.35 ≤0.020 ≤0.015 0.20-0.25 0.001-0.005

1541

 0.36-0.44 - 1.35-1.65 ≤0.040 ≤0.050

30CrMnSiA

 0.28-0.34 0.90-1.20 0.80-1.10 ≤0.020 ≤0.015 0.80-1.10

Mechanical Properties

Steel Grade

 Deliver Condition Tensile Strength(Mpa) Yield Strength(Mpa) Elongation(%) Hardness(HRC)
4130 + SR ≥813 ≥690 ≥15% ≥24
4140 QT ≥950 ≥850 ≥14% 28 - 33
45MnMoB + N ≥790 ≥600 ≥14% -
1541 + SR ≥813 ≥690 ≥15% ≥24
30CrMnSiA QT ≥850 ≥750 ≥14% 26 - 31

Delivery Condition:

1. Stress Relief Annealing after Cold Working (+SR) (BKS)

2. Normalizing (+N) (NBK)

3. Quenching & Tempering (QT)

Oilfield 45MnMoB Core Tubes For Geological Drilling Rods

FAQ:

1. Can you provide a sample to check the quality?
We can provide free sample with same or similar sizes for you to check tube quality.
You need to in charge of Express costs.

2. How about your production capacity?
3000 tons/Month.

3. What are your terms of payment?
30%TT in advance, Balance to be paid before shipment.

4. Where is your factory?
Zhangjiagang city, 1.5 hours away from Shanghai.

5. How can I get the quotation A.S.A.P?
Please send us an inquiry with full details as following,quotation will sent to you A.S.A.P:
1). Tube Standard
2). Steel Grade
3). Tube Size and Size Tolerance
4). Tube length
5). Quantity
6). If any special requirements

6. How about the minimum order quantity?
Normally for one size above 1 ton.

Welcome to contact us! Thanks.

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Oilfield 45MnMoB Core Tubes For Geological Drilling Rods

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Product Detail
Brand Name :
HONGBAO
Model Number :
HG-OP
Certification :
PED, ISO9001,DNV
Place of Origin :
China
MOQ :
1MT
Price :
Negotiable
Contact Supplier
video
Oilfield 45MnMoB Core Tubes For Geological Drilling Rods
Oilfield 45MnMoB Core Tubes For Geological Drilling Rods
Oilfield 45MnMoB Core Tubes For Geological Drilling Rods

Jiangsu Hongbao Group Co., Ltd.

Verified Supplier
9 Years
jiangsu
Since 1958
Business Type :
Manufacturer
Main Products :
Welded Steel Tube, Precision Steel Tube, Hollow Steel Tube
Total Annual :
>76000000
Employee Number :
700~1000
Certification Level :
Verified Supplier
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