ROUND WELDED STEEL PIPE

Tianjin Brisk Steel is one of the manufacturers of ROUND WELDED STEEL PIPE in China. Our products are mainly exported to the Middle East, Southeast Asia, Europe, New Zealand, and other regions.If you would like to learn more about our products, feel free to contact us and send your purchase list.

 PRODUCT

Tianjin BRISK STEEL focus on produce and supply hollow section and steel pipe

All our round welded steel pipes are strictly manufactured, inspected, and tested in accordance with global universal standards, ensuring full compatibility with international engineering projects and cross-border procurement requirements:

• American Standards: ASTM A53, ASTM A500, ASTM A513, API 5L (for oil & gas pipeline engineering)

• European Standards: EN 10219, EN 10255

• Chinese National Standards: GB/T 3091, GB/T 13793

• Material Grades: Q195, Q235B, Q345B, Grade B, X42-X65, 1010/1020 carbon steel

• Available specification range: Outer Diameter (OD) 21.3mm – 3048mm, Wall Thickness (WT) 1.0mm – 60mm, conventional lengths 5.8m, 6m, 11.8m, 12m, with custom fixed-length cutting available.

Our round welded steel pipes deliver stable and reliable physical performance under various working conditions, with standardized mechanical indicators verified by third-party industrial testing:

Tensile & Yield Strength

• Made from high-quality carbon steel and low-alloy steel substrates, the pipes feature excellent structural rigidity. The tensile strength reaches 415MPa – 750MPa, and the yield strength ranges from 325MPa to 485MPa (up to 50,000 PSI for ASTM A500 grade products). The integrated welding process ensures uniform metal grain structure at the weld seam, making the strength of the welding zone consistent with the base metal and avoiding local stress concentration.

Ductility & Toughness

• The product owns excellent elongation performance with an elongation rate ≥ 18%, enabling strong deformation resistance under dynamic loads, vibration, and seismic conditions. It can withstand bending, stamping, and other deep processing without cracking, adapting to complex on-site construction and mechanical assembly scenarios.

Pressure & Stress Distribution Performance

• The standard circular cross-section achieves uniform pressure and stress distribution in all directions, far superior to square and rectangular steel pipes. It effectively resists torsional force and internal fluid pressure, ensuring stable operation for long-term medium and low-pressure fluid (water, gas, oil) transmission. Qualified products pass strict hydrostatic pressure and nondestructive welding tests to eliminate hidden leakage risks.

Surface & Durability Performance

• The pipe surface is smooth with uniform welds, no burrs, cracks, or folding defects. Custom galvanizing (zinc coating thickness 60-85μm), painting, and anti-corrosion treatments are available to enhance oxidation and rust resistance, adapting to humid, saline-alkali, and outdoor open-air working environments.

Superior Structural & Engineering Adaptability

• The uniform circular structure delivers optimal load-bearing capacity and anti-torsion performance, making it ideal for building scaffolding, steel structure frames, bridge supports, and mechanical equipment brackets. It fits most structural engineering design standards worldwide and reduces overall project structural risks.

High Cost-Performance & Supply Stability

• Compared with seamless steel pipes, round welded steel pipes have lower production costs and shorter delivery cycles, with no limit on large-diameter and long-length production. It is the most cost-effective solution for non-high-pressure critical engineering scenarios, helping global buyers significantly reduce procurement and project construction costs while maintaining qualified engineering quality.

Strict Quality Control & Batch Consistency

• Adopting automated double-sided welding and real-time online nondestructive testing technologies, our products achieve consistent batch quality. All pipes undergo strict dimensional inspection, mechanical performance testing, and weld seam flaw detection to ensure 100% compliance with international standards, supporting long-term bulk procurement and engineering standardized construction.

Diversified Customization & Wide Application

• We support customized specifications, surface treatments, and deep processing (cutting, drilling, bending, threading). The products are widely applicable in water supply & drainage engineering, HVAC systems, urban infrastructure, oil and gas low-pressure transmission, agricultural engineering, and fence structure projects, covering mainstream downstream market demands.

With the acceleration of global infrastructure construction and urban renewal, round welded steel pipes remain in strong market demand due to their high cost-performance and wide adaptability. Our products are exported to Europe, Southeast Asia, Africa, the Middle East, and Latin America, serving the following core scenarios:

• Civil & municipal infrastructure: Water supply, drainage, fire protection, and HVAC pipeline systems

• Construction engineering: Building steel structures, scaffolding, bridge support frames

• Energy & petrochemical: Low and medium-pressure oil, natural gas, and industrial fluid transmission

• Mechanical & agricultural engineering: Equipment brackets, greenhouse structures, fence engineering

If you are interested in our Round Welded Steel Pipe , please contact us with your specific requirements (specifications, quantity, material, surface treatment, etc.), and we will provide you with a detailed quotation and product sample as soon as possible. We look forward to establishing long-term cooperative relationships with you!!