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seamless oil drilling coupling tube
, 1541 steel grade oil pipe
, oil drilling pipe with microstructure
GB/T 9808 Seamless Oil Drilling Coupling Tube 1541 Steel Grade Oil Drilling Pipe With Excellent microstructure
1541 Grade Drilling Pipe – The Practical, Cost-Effective Workhorse for Everyday Drilling
When your drilling operation prioritizes efficiency, affordability, and reliable performance for standard conditions, the 1541-grade drilling pipe delivers exactly what you need. This budget-friendly carbon-manganese steel solution is engineered to handle routine well depths, stable formations, and cost-sensitive projects without unnecessary frills – making it the smart choice for maximizing value on every meter drilled.
Why 1541 is the Go-To for Common Drilling Needs
1. No expensive alloys (Cr/Mo-free) – Directly reduces raw material costs by 20–30% compared to high-end grades like 4140.
2. Simplified processing (normalized only) – Eliminates costly heat treatments, slashing production expenses while maintaining core strength.
Solid Performance for Standard Wells
3. Tensile Strength: 800–950 MPa | Yield Strength: 600–750 MPa – Delivers ample load-bearing capacity for wells up to 3,000m depth and medium pressure (≤35 MPa).
4. Elongation ≥16% – Provides flexibility to absorb minor shocks (e.g., tripping, rotation) without compromising structural integrity.
Field-Friendly & Easy to Work With
1. Excellent weldability – No preheating or post-weld heat treatment needed for standard field joints, accelerating on-site operations.
2. Good machinability – Supports efficient threading and end finishing, reducing manufacturing and maintenance downtime.
Adaptable to Common Formations
-
Engineered for soft-to-medium-hard rock (e.g., sandstone, shale, clay) with low abrasion risk, thriving in vertical wells, shallow gas storage, and exploration holes.
Applications include fore poling (advance support), mine blasting, water well drilling, geothermal well drilling, and coal/nonferrous metal mining.
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)
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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