Large Diameter Civil Engineering Spiral Pipe ERW Welded Cardon Steel Pipes Construction Mining Industry Drainage Pipe GB/T 3091 Large Diameter Thick Wall LSAW

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Product Description

Basic Information
Model NO. GB/T 3091-2015 GB/T 14291-2016 GB/T 28413-2012
Type / Technique Welded / Hot Rolled
Material Carbon Steel
Surface Treatment Black / Anti-Rust Painting
Section Shape Round
Usage Pipeline Transport, Boiler Pipe, Hydraulic/Automobile Pipe, Oil/Gas Drilling, Food Industry, Machinery, Mining, Construction
Steel Grade A106, A53, 20#, 45#, Q235B, Q355B, 20G, 40Cr, 35CrMo, 42CrMo
Welded Steel Pipe Overview
Specifications Banner
Product Specifications
Out Diameter 10-1000mm
Wall Thickness 1-80mm
Length 1-12m (Customizable)
Technique ERW / EFW / SAW
Standards ASTM A500, ASTM A53, GB/T 3091, BS 1387, ASTM F1083
Delivery Time 10 days from stock; 15-20 days for production
Qualification Certificates
Certificate 1
Certificate 2
Certificate 3
Core Advantages
01
CONTROLLABLE QUALITY

Produced by our own facilities, we independently control the entire process from steel strip selection to welding and flaw detection, adhering to international ASTM/DIN standards.

02
ADEQUATE STOCK

Rich stock covering common calibers and wall thicknesses. Conventional specifications are ready for immediate dispatch, significantly shortening delivery cycles.

03
FLEXIBLE CUSTOMIZATION

Support for personalized parameters including length, caliber, and surface treatments like plastic coating or galvanizing for specific environments.

04
THOUGHTFUL SERVICE

24/7 support with one-to-one account management. We handle everything from sample delivery to customs documentation efficiently.

Wide Applications

Used in liquid delivery (pump wells, gas, water), construction pipes, structural pipes for greenhouses, fence posts, curtain walls, and machinery parts.

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Application Image 2
About Our Factory
Factory Environment

Operating since 2016, we have emerged as a pioneering enterprise integrating modern production with international trade. Our large-scale machinery operates in an orderly fashion to roll off products like Seamless steel pipes, Galvanized pipes, and Rebars through exquisite craftsmanship.

With advanced production lines and strict quality control, we ensure every product serves as a solid pillar across various industrial sectors. Our team accurately interprets customer needs to recommend the most suitable solutions while maintaining fair pricing.

Frequently Asked Questions
How do you guarantee product quality?
We have passed ISO9001, SGS, and CE certifications. We always provide pre-production samples and conduct a final inspection before shipment. Third-party inspections are also welcome.
Can I request a sample before a bulk order?
Yes, we can send samples worldwide. Samples are free, though customers are expected to cover the express shipping costs.
How long is the typical delivery time?
Generally, our delivery time is between 15-45 days. For stock items, it can be as quick as 10 days, depending on the order volume and specifications.
What payment methods do you accept?
We typically accept T/T (Telegraphic Transfer), L/C (Letter of Credit), and D/P or D/A collections. Flexible terms can be negotiated based on specific circumstances.
How are the steel products packaged for shipping?
Products are usually bundled. For sensitive items like stainless steel, we use moisture-proof and anti-rust materials, including plastic films and specialized paper to ensure protection during transit.
Why do prices vary periodically?
Prices are subject to the cyclical changes in raw material costs. Please contact us with your specific requirements for the most up-to-date and competitive quote.
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