Jiangsu Hongbao Group Co., Ltd.
| Payment Terms | T/T |
| Supply Ability | 3000 tons/month |
| Delivery Time | 45 days |
| Packaging Details | Bundles Package, Wooden Box Package |
| Standard | ASTM A519 |
| Grade | 4130, 4140; 34CrMo4, 42CrMo4 |
| OD Size | 30-139.7mm |
| WT Size | 3-19mm |
| Shape | Round |
| Production Process | Cold Drawn, Cold Rolling |
| Application | Oilfield Drilling |
| Brand Name | Hongbao |
| Model Number | HBOWD-3 |
| Certification | ISO9001 |
| Place of Origin | China |
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Product Specification
| Payment Terms | T/T | Supply Ability | 3000 tons/month |
| Delivery Time | 45 days | Packaging Details | Bundles Package, Wooden Box Package |
| Standard | ASTM A519 | Grade | 4130, 4140; 34CrMo4, 42CrMo4 |
| OD Size | 30-139.7mm | WT Size | 3-19mm |
| Shape | Round | Production Process | Cold Drawn, Cold Rolling |
| Application | Oilfield Drilling | Brand Name | Hongbao |
| Model Number | HBOWD-3 | Certification | ISO9001 |
| Place of Origin | China | ||
| High Light | A519 oil well drilling pipe ，4130 oilfield drill pipe ，4140 oil exportation pipe | ||
A519 4130 4140 Oil Well Drilling Pipe , Oilfield Drill Pipe for Oil Exportation
Description
We introduce high-strength A519 4130/4140 Oil Well Drilling Pipes, engineered for extreme downhole conditions and international oil exportation projects. Manufactured in strict compliance with ASTM A519 standards, these seamless chromium-molybdenum alloy steel pipes deliver superior mechanical properties, including exceptional tensile strength (≥813 MPa for 4130, ≥950 MPa for 4140), outstanding impact toughness, and excellent fatigue resistance.
Ideal for drill rods, tool joints, casings, and heavy-weight drill pipes, our products are tailored to withstand high-pressure, high-temperature (HPHT) environments and corrosive well conditions. The precise chemical composition—4130 (Cr: 0.80-1.10%, Mo: 0.15-0.25%) and 4140 (Cr: 0.80-1.10%, Mo: 0.15-0.25%)—ensures enhanced hardenability, wear resistance, and structural integrity under dynamic loads.
Specification
| Parameter | Details |
|---|---|
| Material Grade | 4130, 4140 |
| Standard | ASTM A519 |
| Outer Diameter (OD) | 30 - 140 mm |
| Wall Thickness (WT) | 3 - 20 mm |
| Delivery Condition | +N, +SR, QT |
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 |
Features
High Strength-to-Weight Ratio: Provides necessary load-bearing capacity while managing the weight of the drill string.
Exceptional Toughness: Superior resistance to impact and shock loads encountered during drilling, tripping, and in doglegs, minimizing the risk of catastrophic failure.
Outstanding Fatigue Resistance: Withstands the cyclic bending and rotational stresses in the drill string, significantly extending service life.
Good H2S Resistance (Limited S & P): Low sulfur and phosphorus content offers
Packing
Standard Export Packing: Bundles with plastic end caps and wooden box package
Application
Drill Pipes & Tool Joints: Core material for high-strength drill string components.
Casing Tubing: Used in sections requiring enhanced mechanical performance.
Couplings & Subs: Critical connections in downhole assemblies.
Core Barrels: Inner and outer tubes for drilling core samples.
Mandrels & Valves: Components for wellhead and drilling tools.
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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