Jiangsu Hongbao Group Co., Ltd.
| Payment Terms | L/C, T/T |
| Supply Ability | 3000MT/Month |
| Delivery Time | Negotiable |
| Packaging Details | As required |
| Steel Grade | 30CrMo（4130/34CrMo4）, 42CrMo（4140/42CrMo4） |
| Execution Standard | EN10305-1, DIN2391, ASTM A519 |
| OD Range | 30-139.7mm |
| WT Range | 3-19mm |
| Brand Name | HONGBAO |
| Model Number | HG-OP |
| Certification | PED, ISO900, DNV |
| Place of Origin | China |
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Product Specification
| Payment Terms | L/C, T/T | Supply Ability | 3000MT/Month |
| Delivery Time | Negotiable | Packaging Details | As required |
| Steel Grade | 30CrMo（4130/34CrMo4）, 42CrMo（4140/42CrMo4） | Execution Standard | EN10305-1, DIN2391, ASTM A519 |
| OD Range | 30-139.7mm | WT Range | 3-19mm |
| Brand Name | HONGBAO | Model Number | HG-OP |
| Certification | PED, ISO900, DNV | Place of Origin | China |
| High Light | Seamless Rolled Alloy Steel Pipe ，Oil Well Alloy Steel Pipe ，30CrMo Alloy Seamless Pipe | ||
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)
Company Details
Business Type:
Manufacturer
Year Established:
1958
Total Annual:
60000000-80000000
Employee Number:
700~1000
Ecer Certification：
Verified Supplier
Jiangsu Hongbao Group (Pipe) Co., Ltd. (Zhangjiagang Hongda Pipe Co., Ltd.) is a high-tech company in Jiangsu province. The company has a registered capital of RMB 89 million, covers an area of 130,000 square meters, employs 600 staff, and has annual sales of RMB 400 million. The company is speciali... Jiangsu Hongbao Group (Pipe) Co., Ltd. (Zhangjiagang Hongda Pipe Co., Ltd.) is a high-tech company in Jiangsu province. The company has a registered capital of RMB 89 million, covers an area of 130,000 square meters, employs 600 staff, and has annual sales of RMB 400 million. The company is speciali...
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