API 5L PSL2 BNS LSAW steel pipe 914.4*12.7mm ready for shipment
API 5L PSL2 BNS LSAW steel pipe 914.4*12.7mm ready for shipment Out diameter: 914.4mm(36″) Wall thickness: 12.7mm Length: 12 meters Quantity: 11 pipes
ASTM A53 GR.B ERW STEEL PIPE 8″ 10″ 12″ to Saudi Arabia
1.ASTM A53 Gr.B Welded Pipe 8″ (219 mm) x 4.78 mm thickness x 6 m length, 340PCS
2.ASTM A53 Gr.B Welded Pipe 10″ ( 273 mm) x 5.56 mm Thickness x 6 m length, 355PCS
3.ASTM A53 Gr.B Welded Pipe 12″ ( 323.8 mm) x 5.56 mm Thickness x 6 m length, 300 PCS
1.ASTM A53 Gr.B Welded Pipe 8″ (219 mm) x 4.78 mm thickness x 6 m length, 340PCS
2.ASTM A53 Gr.B Welded Pipe 10″ ( 273 mm) x 5.56 mm Thickness x 6 m length, 355PCS
3.ASTM A53 Gr.B Welded Pipe 12″ ( 323.8 mm) x 5.56 mm Thickness x 6 m length, 300 PCS

The above specifications of ASTM A53 Grade B ERW welded steel pipes (8″, 10″, 12″) are medium-to-large diameter carbon steel pipes widely used in structural and fluid transportation systems. With standard 6-meter lengths and reliable wall thicknesses, they are suitable for the following applications:
1. Water Transmission Systems
Commonly used for municipal water supply, drainage systems, and industrial water pipelines. The 8″–12″ diameters are especially suitable for medium-capacity main and branch lines.
2.Oil and Gas Low-Pressure Pipelines
ASTM A53 Grade B pipes are ideal for low- and medium-pressure oil and gas transmission, refinery piping, and general pipeline systems.
3. Fire Protection Systems
Widely used in fire sprinkler and fire main pipeline systems due to their good strength and durability.
4. Structural and Construction Projects
Suitable for steel structure supports, piling, bridge construction, and mechanical frameworks where strength and weldability are required.
5. Industrial Fluid Transportation
Used for conveying steam, air, non-corrosive liquids, and other general industrial fluids.
The 8″, 10″, and 12″ sizes are typically applied in main distribution lines or backbone pipeline systems in infrastructure and industrial projects.
1.Strict Compliance with International Standards
All products are manufactured in accordance with ASTM A53 Grade B requirements, ensuring:
2. Advanced ERW Manufacturing Technology
LONGMA adopts mature Electric Resistance Welding (ERW) production lines featuring:
This ensures consistent quality and long-term performance in demanding environments.
3.Strong Production and Delivery Capability
With hundreds of pieces per size (340 PCS, 355 PCS, 300 PCS), LONGMA demonstrates:
4.Rich Export Experience
LONGMA has extensive experience serving international markets, providing:

ASTM A53 Grade B ERW steel pipes in 8″, 10″, and 12″ sizes offer excellent strength, weldability, and cost efficiency, making them an ideal solution for water supply, oil & gas, fire protection, and structural applications.
With strict quality control, advanced production technology, and strong international supply capability, LONGMA is a reliable partner for global pipeline and construction projects.