Standard Welded Carbon Steel Square Pipe with ISO 9001 Certification

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Product Description

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Basic Information

Material
Carbon Steel
Surface Treatment
Hot-DIP Galvanizing, Epoxy Coating/Spray Painting
Usage
Oil/Gas Drilling, Machinery, Construction, Water Supply
Section Shape
Round/Square
MOQ
1 Ton
Delivery Time
2-3 Days
Samples
Provide Free Samples
Certification
ISO 9001, CE, OCTG 5L, GB/T 3091
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Product Description

Welded Carbon Steel Round Pipe / Seamless Carbon Steel Round Pipe / Welded Carbon Steel Square Pipe

Carbon Steel Square Pipe

1. Material and Process Advantages: High-strength material (Q195/Q235/Q345 or ASTM A53/A106). Advanced technology including ERW, LSAW, and seamless cold-drawn processes. Anti-corrosion options like hot-dip galvanizing.

2. Cost and Delivery: Favourable pricing with 30%-50% lower cost than seamless pipes for welded options. Fast delivery within 7-15 days for custom sizes.

3. Quality Assurance: Passed ISO 9001, CE, OCTG 5L, and GB/T 3091 standards.

1. Welded Carbon Steel Round Pipe

Parameter Specification Range Common Sizes Standard
OD 10mm-2000mm 21.3mm, 48mm, 114mm GB/T 3091, ASTM A53
Wall Thickness 0.8mm-20mm 2.0mm, 3.6mm, 6.0mm EN 10219, JIS G3444
Length 1m-12m (Up to 18m) 6m, 12m -

2. Seamless Carbon Steel Round Pipe

Parameter Specification Range Common Sizes Standard
OD 6mm-800mm 25mm, 60mm, 168mm GB/T 8163, ASTM A106
Wall Thickness 1mm-50mm 3mm, 8mm, 12mm DIN 2448, OCTG 5L
Length 3m-12m (Up to 15m) 5.8m, 11.8m -

3. Welded Carbon Steel Square Pipe

Parameter Range Stock Sizes Feature
Side Length 10x10mm - 500x500mm 20x20mm, 50x50mm ERW, internal/external deburring
Wall Thickness 0.8mm-20mm 1.5mm, 3.0mm Flat weld seam, high strength
Length 1m-12m 6m, 12m Flat cut, ±1mm tolerance
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Applications

Industry Typical Applications
Construction Building frameworks, scaffolding, guardrails, roofing supports.
Oil & Gas Low-pressure pipelines, casing pipes, water injection lines (OCTG 5L).
Water Supply Municipal water drainage, fire sprinkler systems, irrigation pipes.
Mechanical Conveyor rollers, hydraulic cylinders, truck chassis components.
Agriculture Greenhouse frames, livestock fencing, grain storage bins.
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Main Products & Workshop

Main Products Display
Workshop Equipment
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Company Profile

Drawing on over forty years of successful steel trading experience and officially established in 2009, we are committed to developing a comprehensive supply chain system encompassing metal trading, warehousing, logistics, processing, and distribution. We offer one-stop solutions for global manufacturing, infrastructure, machinery, construction, and fire engineering.

Company Overview
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Exhibitions & Customers

Exhibition One Exhibition Two
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Shipping & Certifications

Certifications Display
Packaging and Shipping
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FAQ

How long has your company been established?
We were established in 2009 and hold full rights for international export.
Do you have your own production facilities?
Yes, we have our own machining centre and large diameter pipe factory. We can provide production videos and photos upon request, and factory visits are always welcome.
What certifications do your products hold?
Our products meet standards such as GB, EN, JIS, and Australian Standards. Our facilities are ISO and ROHS certified.
What is your MOQ and lead time?
MOQ depends on specific products. For stock items, delivery takes 2-3 days. Custom orders require a specific lead time based on requirements.
Which payment methods do you accept?
We accept TT, LC, PayPal, Western Union, and other standard payment methods.
Do you provide customization services?
Yes, we support flexible sizing with OD from 10mm to 2000mm, wall thickness from 1mm to 50mm, and lengths up to 18m.

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