ASTM A500 Gra Welded Steel Pipe φ 660mm for Bridges

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Product Description

ℹ️ Basic Information
Material
Carbon Steel
Surface Treatment
Hot-DIP Galvanizing, Epoxy Coating/Spray Painting
Usage
Oil/Gas Drilling, Machinery Industry, Construction & Decoration
Section Shape
Round/Square
MOQ
1 Ton
Delivery Time
2-3 Days
Free Samples
Yes
Certification
ISO 9001, CE, OCTG, GB/T 3091
📦 Product Description
Welded Carbon Steel Round Pipe/Seamless Carbon Steel Round Pipe/Welded Carbon Steel Square Pip
Welded Steel Pipe

1. Material and process advantages
High-strength material: Q195/Q235/Q345 or ASTM A53/A106 carbon steel, strong pressure and impact resistance.
Advanced technology: high-frequency welding (ERW)/submerged arc welding (LSAW)/seamless cold-drawn to ensure precise size and uniform weld seam.
Anti-corrosion treatment: hot-dip galvanizing, epoxy coating or spray painting are optional to extend outdoor service life.

2. Cost and delivery advantages
Favourable price: large-scale production, 30%-50% lower cost than seamless pipe.
Fast delivery: regular specifications in stock, customised sizes delivered in 7-15 days.

1. Welded Carbon Steel Round Pipe
Parameter Specification Range Common Sizes Standard
OD10mm-2000mm21.3mm, 48mm, 114mmGB/T 3091, ASTM A53
Wall Thickness0.8mm-20mm2.0mm, 3.6mm, 6.0mmEN 10219, JIS G3444
Length1m-12m (Custom up to 18m)6m, 12m-
2. Seamless Carbon Steel Round Pipe
Parameter Specification Range Common Sizes Standard
OD6mm-800mm25mm, 60mm, 168mmGB/T 8163, ASTM A106
Wall Thickness1mm-50mm3mm, 8mm, 12mmDIN 2448, OCTG
3. Welded Carbon Steel Square Pipe
Parameter Range Stock Sizes Feature
Side Length10×10mm - 500×500mm20×20mm, 50×50mmERW, internal/external deburring
Wall Thickness0.8mm-20mm1.5mm, 3.0mmFlat weld seam, high strength
🛠️ Applications
Industry Key Usage
ConstructionBuilding frameworks, scaffolding, guardrails, roofing supports.
Oil & GasLow-pressure pipelines, casing pipes, water injection lines.
Water SupplyMunicipal water drainage, fire sprinkler systems, irrigation pipes.
MechanicalConveyor rollers, hydraulic cylinders, truck chassis components.
AgricultureGreenhouse frames, livestock fencing, grain storage bins.
Customisation Service: Flexible size support for customized outer diameter (OD 10mm-2000mm), wall thickness (1mm-50mm), and length (1m-12m).
Main Products
Main Steel Products
🏢 Company Profile

Emerging in the 1980s, our company draws on over forty years of successful steel trading experience and was officially established in 2009. Over the past decade, we have been 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, fire engineering, municipal projects, and more than 20 steel-using industries. Our goal is to empower our clients to gain competitive advantages through cost reduction and improved efficiency.

Company Facility
🏭 Workshop & Equipment
Workshop
🌍 Exhibitions & Certifications
Exhibition Customers
Certifications
🚢 Packaging & Shipping
Packaging
Frequently Asked Questions
How long has your company been established and do you have export rights?
Our company was established in 2009 and holds full independent import and export rights.
Can I visit your factory or see production videos?
Yes, we have our own machining centre and large diameter pipe factory. We can provide production videos and photos, and you are always welcome to visit our facility in person.
Which international certifications do your products hold?
We meet international standards such as GB, EN, JIS, and Australian Standards. Our factories are ISO certified and comply with RoHS requirements.
What is the MOQ and delivery lead time?
MOQ depends on the specific product. For stock items, delivery takes 2-3 days. Custom orders typically require 7-15 days.
What payment methods are accepted for international orders?
We accept TT (Telegraphic Transfer), LC (Letter of Credit), PayPal, and Western Union.
Do you provide samples before bulk ordering?
Yes, we provide free samples for quality evaluation for most of our standard carbon steel products.

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