Jiangsu Hongbao Group Co., Ltd.
| Payment Terms | T/T, L/C |
| Supply Ability | 3000 tons/month |
| Delivery Time | 45 - 60 days |
| Packaging Details | Plywood case, wooden box |
| Standard | ASTM, ASME, API |
| Grade | 4130, 4140, 4145 |
| OD Size | 4-219mm |
| WT Size | 0.5-20mm |
| Shape | Round |
| Production Process | Cold Drawn |
| Application | Oil |
| Brand Name | Hongbao |
| Model Number | HBOWD-11 |
| Certification | ISO9001 |
| Place of Origin | China |
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Product Specification
| Payment Terms | T/T, L/C | Supply Ability | 3000 tons/month |
| Delivery Time | 45 - 60 days | Packaging Details | Plywood case, wooden box |
| Standard | ASTM, ASME, API | Grade | 4130, 4140, 4145 |
| OD Size | 4-219mm | WT Size | 0.5-20mm |
| Shape | Round | Production Process | Cold Drawn |
| Application | Oil | Brand Name | Hongbao |
| Model Number | HBOWD-11 | Certification | ISO9001 |
| Place of Origin | China | ||
| High Light | AISI 4340 Chromoly drilling pipe ，seamless steel oilfield pipe ，oil well exploration steel pipe | ||
AISI 4340 Chromoly Alloy Oil Well Drilling Pipe , Seamless Steel Pipe for Oilfield Exploration
Description
This AISI 4340 Chromoly Alloy Oil Well Drilling Pipe represents the pinnacle of performance and reliability in modern oilfield exploration. Manufactured as a seamless steel pipe, it is specifically engineered to withstand the extreme mechanical stresses and corrosive environments encountered in deep well drilling, horizontal drilling, and other challenging operations.
The core of its superior performance lies in the use of AISI 4340 alloy steel, a nickel-chromium-molybdenum ("Chromoly") grade renowned for its exceptional strength-to-weight ratio, high fatigue resistance, and outstanding toughness. This composition allows the pipe to handle high tensile loads, severe bending moments, and intense internal pressures without compromising structural integrity. The seamless construction ensures superior dimensional accuracy and eliminates the weak points inherent in welded tubes, significantly enhancing its service life and reliability under cyclic loading conditions.
These pipes undergo rigorous heat treatment (quenching and tempering) to achieve optimal mechanical properties, such as high yield and tensile strength, making them suitable for high-pressure, high-temperature (HPHT) well applications. Furthermore, the material offers good resistance to wear and impact, reducing the risk of downhole failures.
Specification
| Specifications | ASTM, ASME and API |
| Size | O.D.: 4 to 219mm W. T.: 0.5 to 20mm |
| Specialized in | Large Diameter Size |
| Length | Within 13500mm |
| Type | Seamless |
| Shape | Round |
| End | Plain End, Beveled End, Treaded |
ASTM A519 4130 Pipe Chemical Composition
| Element | Content (%) |
| Iron, Fe | 97.03 – 98.22 |
| Chromium, Cr | 0.80 – 1.10 |
| Manganese, Mn | 0.40 – 0.60 |
| Carbon, C | 0.280 – 0.330 |
| Silicon, Si | 0.15 – 0.30 |
| Molybdenum, Mo | 0.15 – 0.25 |
| Sulfur, S | 0.040 |
| Phosphorous, P | 0.035 |
ASTM A519 4130 Pipe Mechanical Properties
| Properties | Metric | Imperial |
| Tensile strength, ultimate | 560 MPa | 81200 psi |
| Tensile strength, yield | 460 MPa | 66700 psi |
| Modulus of elasticity | 190-210 GPa | 27557-30458 ksi |
| Bulk modulus (Typical for steel) | 140 GPa | 20300 ksi |
| Shear modulus (Typical for steel) | 80 GPa | 11600 ksi |
| Poissons ratio | 0.27-0.30 | 0.27-0.30 |
| Elongation at break (in 50 mm) | 21.50% | 21.50% |
| Reduction of area | 59.6 | 59.60% |
| Hardness, Brinell | 217 | 217 |
| Hardness, Knoop (Converted from Brinell hardness) | 240 | 240 |
| Hardness, Rockwell B (Converted from Brinell hardness) | 95 | 95 |
| Hardness, Rockwell C (Converted from Brinell hardness, value below normal HRC range, for comparison purposes only.) | 17 | 17 |
| Hardness, Vickers (Converted from Brinell hardness) | 228 | 228 |
| Machinability (Annealed and cold drawn. Based on 100% machinability for AISI 1212 steel.) | 70 | 70 |
ASTM A519 4130 Steel Pipe Equivalent
| STANDARD | UNS | CN | WERKSTOFF NR. | AFNOR | EN | JIS | BS | GOST |
| AISI 4130 | G41300 | 30CrMo | 1.7218 | – | 25CrMo4 | JIS G4105 | BS 970 | – |
Packing
Bundles with plastic end caps, wooden box package
Application
Oil & Gas
Pharmaceutical
Chemical
Aerospace
Desalination
Power Generation
Structural Engineering
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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