Hebei Huayang Steel Pipe Co., Ltd is one of the leading manufacturers and suppliers of api 5l gr.b 1422.4mm lsaw steel pipe in China. Please feel free to buy cheap api 5l gr.b 1422.4mm lsaw steel pipe from our factory. All customized products are with high quality and low price.
Product Overview
Huayang 1422.4 mm LSAW steel pipe is designed for large-diameter transmission systems requiring stable strength, weld integrity, and high flow capacity.
| Parameter | Specification |
|---|---|
| Outside Diameter | 1422.4 mm |
| Nominal Diameter | Approx. DN1400 |
| Material Grade | API 5L Grade B PSL1 |
| Manufacturing Process | LSAW |
| Wall Thickness | 7–50 mm |
| Main Application | Transmission Pipeline |
The 1422.4 mm diameter is at the upper end of Huayang's established LSAW production capability, making it suitable for major transmission infrastructure.
API 5L Grade B Material Performance
API 5L Grade B PSL1 provides a minimum yield strength of 245 MPa and a minimum tensile strength of 415 MPa, offering a balanced combination of strength, ductility, and weldability for conventional pipeline service. Unlike higher-strength grades such as X52 or X65, Grade B is suited to projects where moderate mechanical strength meets the design requirements. Huayang manufactures large-diameter LSAW pipe from steel plate using longitudinal submerged arc welding. Its LSAW production covers 406.4–1422.4 mm diameters and wall thicknesses up to 50 mm, matching the dimensional requirements of this product. Quality control can include chemical analysis, tensile and impact testing where specified, hydrostatic testing, ultrasonic weld inspection, dimensional inspection, and traceability according to API 5L requirements.
Our Certificate
Bundling and loading onto vehicles
Pipe Detaild Packages
| Specification | Pcs per Bundle | Bundling Layer Pattern | CBM per Bundle | |
| OD (mm) | Wall Thickness (mm) | |||
| 48.3 | 3.68 | 91 | 6,7,8,9,10,11,10,9,8,7,6 | 1.69 |
| 5.08 | 61 | 5,6,7,8,9,8,7,6,5 | 1.13 | |
| 60.3 | 3.91 | 61 | 5,6,7,8,9,8,7,6,5 | 1.77 |
| 5.54 | 37 | 4,5,6,7,6,5,4 | 1.07 | |
| 73 | 5.16 | 37 | 4,5,6,7,6,5,4 | 1.57 |
| 7.01 | 24 | 4,5,6,5,4 | 0.96 | |
| 88.9 | 5.49 | 24 | 4,5,6,5,4 | 1.42 |
| 7.62 | 19 | 3,4,5,4,3 | 1.19 | |
| 114.3 | 6.02 | 19 | 3,4,5,4,3 | 1.96 |
| 8.56 | 10 | 3,4,3 | 0.94 | |
| 141.3 | 6.55 | 10 | 3,4,3 | 1.44 |
| 9.53 | 7 | 2,3,2 | 1.08 | |
| 168.3 | 7.11 | 10 | 3,4,3 | 2.04 |
| 10.97 | 7 | 2,3,2 | 1.53 | |
| 219.1 | 8.18 | 7 | 2,3,2 | 2.59 |
| 12.7 | 5 | 2,3 | 1.73 | |
| 273 | 9.27 | 5 | 2,3 | 2.68 |
| 15.09 | 3 | 1,2 | 1.79 | |
| 323.8 | 10.31 | 3 | 1,2 | 2.52 |
| 17.48 | 2 | 1,1 | 1.26 | |
Pipe Protection
Pipe-end protection is advisable in case the pipe-ends are bevelled at the pipe manufacturer. In the case of overseas transport, there is an especially increased risk of damaged pipe-ends. This is caused by extra handling procedures in ports and shifting of the pipes onboard vessels.
In addition to end caps or protective rings, external wrapping with protective cloth can be applied along the pipe body. This wrapping helps to safeguard the coating surface from scratches, moisture, and contamination during long-distance transportation or prolonged outdoor storage. Especially for coated or painted pipes, the additional protective cloth layer significantly reduces the risk of mechanical damage, UV exposure, and corrosion initiation, ensuring the pipes arrive at the destination in optimal condition.
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