Hebei Huayang Steel Pipe Co., Ltd is one of the leading manufacturers and suppliers of jis g3454 stpg370 lsaw steel pipe for steam piping systems in China. Please feel free to buy cheap jis g3454 stpg370 lsaw steel pipe for steam piping systems from our factory. All customized products are with high quality and low price.
Product Overview
Huayang L245ME LSAW steel pipe is designed for oil and gas gathering lines, combining controlled strength with reliable welded performance.
| Parameter | Specification |
|---|---|
| Material Grade | L245ME |
| Product Specification Level | PSL2 |
| Manufacturing Process | LSAW |
| Welding Method | Double Submerged Arc Welding |
| Product Standard | ISO 3183 |
| Main Application | Oil and Gas Gathering Lines |
LSAW production is suitable for large-diameter gathering pipelines, providing controlled plate forming, stable longitudinal weld quality and consistent dimensional accuracy.
STPG370 Material Performance
STPG370 is a carbon steel grade specified under JIS G3454 for pressure service. The standard specifies a minimum tensile strength of 370 MPa and minimum yield point or proof stress of 215 MPa. Its chemical composition is controlled with carbon at a maximum of 0.25%, silicon at 0.35% maximum, manganese at 0.30–0.90%, and phosphorus and sulfur at 0.040% maximum. JIS G3454 is intended for carbon steel pipes used in pressure service, generally at temperatures around 350°C or below. Huayang LSAW production uses double-sided submerged arc welding, with dimensional, weld and hydrostatic testing available according to project 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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