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Seamless Rolled Alloy Steel Pipe
, Oil Well Alloy Steel Pipe
, 30CrMo Alloy Seamless Pipe
30CrMo Steel Seamless Cold Rolled Alloy Steel Tube 4130 Steel Oil Well Pipe For Oil Drilling with Excellent Microstructure
4130 (30CrMo) Steel: A Reliable Partner for Oilfield Drilling Pipes
In the field of oilfield drilling, the performance of materials is the key to determining the quality and stability of drilling pipes. Today, we introduce 4130 (30CrMo) steel. With its excellent performance, it has become a preferred choice for industries such as oilfield drilling and water well drilling.
Product Parameters and Performance
Basic Specifications
The specifications of the steel supplied this time are Φ69.85×Φ60.33×3060. It meets the customer's technical requirements and is delivered in the stress - relieved and annealed state.
Precise Chemical Composition
Elements such as C, Si, and Mn are strictly controlled. For example, the C content ranges from 0.28 - 0.33 and the Cr content ranges from 0.80 - 1.10. This ensures the stable basic performance of the material and its adaptability to complex working conditions.
Outstanding Mechanical Properties
It has a tensile strength of more than 800 MPa, a yield strength of more than 720 MPa, and an elongation of more than 15%. The hardness can reach HRC 25 - 28, and the grain size is more than 8.0 grades. It combines high strength - toughness and processing stability. Eddy current inspection, dimensional inspection, and surface quality inspection all meet the standards.
Application Scenarios and Advantages
Applications include fore poling (advance support), mine blasting, water well drilling, geothermal well drilling, and coal/nonferrous metal mining. It is suitable for oilfield drilling and water well drilling. Its high strength - toughness can withstand complex stresses. The precise composition and processing technology ensure dimensional stability, reducing the risk of later - stage use, and helping enterprises improve the user experience and durability.
Quality Assurance and Service
Strict quality inspection is carried out before delivery. In case of quality problems, you can provide feedback with the material information, and the supplier will respond quickly, providing full - process support for your procurement and use.
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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