Hebei Huayang Steel Pipe Co., Ltd is one of the leading manufacturers and suppliers of gost 10704 ст4 lsaw steel pipe for engineering projects in China. Please feel free to buy cheap gost 10704 ст4 lsaw steel pipe for engineering projects from our factory. All customized products are with high quality and low price.
Product Overview
Huayang GOST 10704 Ст4 LSAW steel pipe is manufactured for engineering applications requiring reliable structural performance and consistent longitudinal weld quality.
| Parameter | Specification |
|---|---|
| Material Grade | Ст4 |
| Standard | GOST 10704 |
| Material Standard | GOST 380 |
| Manufacturing Process | LSAW |
| Welding Method | Double Submerged Arc Welding |
| Product Type | Longitudinally Welded Steel Pipe |
| Main Application | Engineering Projects |
GOST 10704 establishes the dimensional range for straight-seam electrically welded steel pipes, while Ст4 is included among the applicable carbon structural steel grades referenced to GOST 380.
Ст4 Material Performance
Ст4 is a carbon structural steel grade within the GOST 380 system, offering a higher strength level than the commonly used Ст2 and Ст3 grades. It is suitable for general engineering fabrication and structural applications where a combination of strength, weldability and dimensional stability is required. For LSAW production, Huayang uses controlled plate forming and double submerged arc welding to provide stable longitudinal weld quality. Weld nondestructive testing, hydrostatic testing, dimensional inspection and other quality controls can be supplied 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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