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 offers exceptional performance for oilfield drilling and water well drilling applications. With excellent microstructure and reliable mechanical properties, it has become the preferred choice for demanding industrial applications.
Basic Specifications: Φ69.85×Φ60.33×3060. Delivered in stress-relieved and annealed state to meet technical requirements.
Chemical Composition: Precise control of elements including C (0.28-0.33), Cr (0.80-1.10), Si, and Mn ensures stable performance and adaptability to complex working conditions.
Mechanical Properties: Tensile strength ≥800 MPa, yield strength ≥720 MPa, elongation ≥15%, hardness HRC 25-28, grain size ≥8.0 grades. Comprehensive inspection including eddy current, dimensional, and surface quality meets standards.
| 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 |
| Steel Grade | Delivery 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 |
Ideal for fore poling (advance support), mine blasting, water well drilling, geothermal well drilling, and coal/nonferrous metal mining. The high strength-toughness combination withstands complex stresses while precise composition and processing ensure dimensional stability, reducing operational risks and enhancing durability.
Strict quality inspection before delivery. Comprehensive support for quality issues with rapid response and full-process assistance for procurement and usage.
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Company Details
Business Type:
Manufacturer
Year Established:
1958
Total Annual:
>76000000
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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