Angle Steel
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Steel coil
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Steel pipe
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Steel tube
Square Tube
Rectangular Tube
Construction Steel
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Steel Fittings
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Steel Fabrication
WELDED PIPE
WELDED PIPE
Diameter:
From 12.7mm to 508mm (or as requested)
Wall thickness:
From 0.6mm to 12mm
Standard length:
6,000mm / 12,000mm or cut-to-size
Grades:
A500 grade A/B, A53 grade A/B, , STK400, API 5L grade A/B, etc
Mills:
Hoa Phat, Phu Xuan Viet, 190, TVP, Visa, Sai Gon Steel, Nam Hung, Duc Viet, SeAH, Shandong, Baotou, etc
Standards:
ASTM A500, ASTM A53, JIS G3444, API 5L...
Key Advantages:
- Cost-effective
- Wide range of available diameters and wall thicknesses
- Suitable for a variety of purposes
- Good corrosion and rust resistance
- High aesthetic appeal and lightweight
- High efficiency in mass production
- Easy fabrication and assembly
High production output
Large manufacturing capacity to efficiently fulfill bulk orders and key projects.
Competitive pricing
Offering budget-friendly yet competitive prices while maintaining product quality.
Trusted by clients
Chosen by hundreds of domestic and international clients for consistent quality and professional service.
Describe Product
Mục lục
Welded pipes are manufactured from steel coils using advanced welding technologies such as ERW, LSAW, and SSAW. They offer an economical and flexible solution for structural construction, machinery frames, and fluid transport systems. The pipes feature a wide range of diameters, high uniformity, and are easy to cut, weld, and surface-treat, such as galvanizing for enhanced durability.
I. FEATURES
- Cost-effectiveness
The production process of welded pipes (typically from steel coils or strips) is simpler and more efficient compared to seamless pipe manufacturing (which require piercing a solid steel billet). This helps save raw materials and energy, resulting in significantly lower costs for welded pipes of the same size. - Wide range of diameters and wall thicknesses
Welded pipes can be manufactured with very large outer diameters, from a few centimeters to several meters (e.g., for large-scale oil or water pipelines). This is difficult or impossible to achieve with seamless pipes. Moreover, the wall thickness of welded pipes is highly uniform. - Suitable for various applications
Ideal for civil and industrial construction; conveying low to medium-pressure fluids; and for machinery frames, furniture, and interior decoration. - Good corrosion and rust resistance
Especially when galvanized or powder-coated, welded steel pipes can withstand harsh environments such as humidity, chemicals, or outdoor conditions. - High aesthetic appeal and lightweight
With a hollow design, welded pipes provide structural rigidity while reducing weight, which helps to decrease the load on structures. Additionally, the surface of welded pipes is usually smooth, making it easy to apply finishes like painting or galvanizing. - High efficiency in mass production
Continuous welding processes (ERW, LSAW, SSAW) allow for stable, large-scale production, suitable for major projects. - Ease of fabrication and installation
Welded pipes are easy to cut, bend, drill, and weld with other fittings, offering flexibility in design and construction.
| Tính chất vật lý(Mechanical Properties) | Tính chất hoá học(Chemical Composition) | |||||||
|---|---|---|---|---|---|---|---|---|
| Mác thép(Grade) | Độ bền kéo (Tensile Strength) (MPa) |
Độ bền kéo (Tensile Strength) (MPa) |
Độ giãn dài(Elongation) % |
C% | Si% | Mn% | P% | S% |
| ASTM A500 grade A | ≥ 230 | ≥ 310 | ≥ 25 | ≤ 0.26 | – | ≤ 1.35 | ≤ 0.035 | ≤ 0.035 |
| ASTM A500 grade B | ≥ 290 | ≥ 400 | ≥ 23 | ≤ 0.26 | – | ≤ 1.35 | ≤ 0.035 | ≤ 0.035 |
| ASTM A53 grade A | ≥ 205 | ≥ 330 | ≥ 22 | ≤ 0.25 | – | ≤ 0.95 | ≤ 0.050 | ≤ 0.045 |
| ASTM A53 grade B | ≥ 240 | ≥ 415 | ≥ 18 | ≤ 0.30 | – | ≤ 1.20 | ≤ 0.050 | ≤ 0.045 |
| STK400 | ≥ 235 | ≥ 400 | ≥ 23 | ≤ 0.25 | – | – | ≤ 0.040 | ≤ 0.040 |
II. TOLERANCE
Wall thickness tolerance: ±5 – 12.5% (varies by standards)
Diameter tolerance: ±0.5 – 1.0% (varies by sizes and standards)
Weight tolerance: ±10%
III. PACKAGING
Bundle weight: 300 – 2000kg/bundle
IV. PRACTICAL APPLICATIONS
- Construction: Scaffolding, steel structures, pre-engineered building frames, fences, etc
- Mechanical & fire protection systems: Water pipelines, gas pipelines, fire protection systems, etc
- Manufacturing industry: Oil and chemical pipelines, machinery frames, etc
- Agriculture: Greenhouse frames, support columns, irrigation systems, etc
- Household & furniture industry: Steel tables and chairs, door frames, metal shelves, etc
V. TOP WELDED PIPE BRANDS IN THE CURRENT MARKET
Currently, there are several well-known and reputable welded pipe brands on the market, including: Hoa Phat, Phu Xuan Viet, Sai Gon Steel, Duc Viet, SeAH, ...
Technical Specifications of Phu Xuan Viet Factory
Technical Specifications of Hoa Phat Factory
Technical Specifications of Sai Gon Factory
