Oilfield 45MnMoB Core Tubes For Geological Drilling Rods

• 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

Mechanical Properties

Delivery Condition:

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

2. Normalizing (+N) (NBK)

3. Quenching & Tempering (QT)

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.