What is the warranty period?

We provide a two-year warranty with 24 hours 7 days after-sales service.

The minimum order quantity is 5 tons for this product, though general MOQ is 1 ton.

Large Diameter Spiral Welded Q235 Q345 A36 A53b Galvanized Square Pipe

Name: Large Diameter Spiral Welded Q235 Q345 A36 A53b Galvanized Square Pipe
Brand: Shandong Desheng Supply Chain Management Co., Ltd.
SKU: 2176399625

Shandong, ChinaShandong Desheng Supply Chain Management Co., Ltd.

US$699.00

5-9 Tons

US$679.00

10-14 Tons

US$649.00

15+ Tons

Sample price:US$150.00/piece.Request sample

Product profile

Customization

Available

After-sales Service

24 Hours 7 Days

Warranty

Two Years

Model NO.

Galvanized Square Pipe

Type

Welded

Technique

Cold Rolled

Material

Carbon Steel

Surface Treatment

Galvanized

Usage

Pipeline Transport, Boiler Pipe, Hydraulic/Automobile Pipe, Oil/Gas Drilling, Food/Beverage/Dairy Products, Machinery Industry, Chemical Industry, Mining, Construction & Decoration, Special Purpose

Section Shape

Square

Grade

Dx51d+Zm Dx53D+Zm

Wall Thickness

2.11-50mm

Payment

30%Tt Advance, 70% Balance

After Sales

24 Hours 7 Days

Tolerances of Diameter

0.4mm~1mm

Weight

as Request

Matierials

Carbon Steel

MOQ

5 Tons

Price Term

CIF CFR Fob Ex-Work

Delivery Time

Nomorlly 15 Working Days

Zinc Coating

Z100 Z275

Technique Process

Cold Drawn

Outer Diameter

20mm-508mm

Tolerance

Length

6 Meters

Transport Package

Standard Sea Freight

Specification

0.15mm--5.0mm

Trademark

Desheng

Origin

China

HS Code

721049000

Production Capacity

1000 Tons

Key features

Extensive Size Range: Square tubes from 16x16mm to 1000x1000mm with various wall thicknesses.

High Corrosion Resistance: Galvanized surface treatment with zinc coating options Z100 to Z275 for durability.

Multi-Industry Application: Suitable for construction, machinery, road guardrails, and pipeline transport.

Certified Quality: Products tested by SGS or BV, meeting GB, ASTM, JIS, and EN international standards.

Flexible Customization: Customizable grades, wall thickness, weight, and tolerances based on client requests.

Fast Delivery: Ready stock available for fast delivery within seven days; production in 15 working days.

Comprehensive Warranty: Two-year warranty coverage with 24/7 after-sales service support.

One-Stop Solution: Provider of steel coils, plates, profiles, and pipes with cutting and galvanizing services.

Company profile

Shandong Desheng Supply Chain Management Co., Ltd.

Shandong, China

CertifiedBusiness Type: Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 5 Years CertifiedNearest Port: Qingdao PortAverage Response Time: ≤9.77h

AI-Powered supplier vetting

SummaryThe supplier operates in mechanical and electrical equipment, electronic components, photovoltaic equipment, charging stations, distribution switchgear, batteries, battery parts, and recycling. It demonstrates broad customization, OEM and ODM capabilities, but has only one R&D engineer and launched no new products in the past year. ISO9001:2015 certification is reported. Service controls include written procedures, records, approved-supplier management, and corrective/preventive actions, while complaint handling is documented. However, the supplier reports no inventory, overseas warehouse, showroom, agent, or branch service capability; quality assurance and traceability statuses are unknown, and quality-control testing equipment is reported as zero. Financial records are referenced for 2021–2023, but the provided data does not establish financial strength. Peak-season fulfillment is within 15 workdays, and export sales account for 71%–90% of total sales. Customer evidence includes OEM service for known...

Supplier typeThe supplier is a diversified mechanical, electrical, electronic, photovoltaic, charging-station, switchgear, battery, battery-parts, and recycling business. It also provides OEM and ODM services and supports multiple forms of product customization, indicating a manufacturer/service-oriented supplier rather than a narrowly focused trading profile.

CertificationsISO9001:2015 certification is explicitly reported in both the sustainable-development and management-system records. This supports an advantage in formal quality-management certification, although the actual status of several quality-control practices remains unknown.

After-Sales capabilityThe supplier has documented complaint-handling procedures and records, supplier-service assessment procedures, an approved supplier list, and corrective/preventive-action procedures. However, it reports no inventory, overseas warehouse, overseas showroom, overseas agent, or branch capability, so its overseas after-sales infrastructure is limited.

R&D capabilityThe supplier has one R&D engineer and offers ODM and design-related services, but it launched no new products in the past year and has no available SDK. The combination supports customization-oriented development but provides explicit evidence of weak recent product innovation.

Production capacityThe supplier covers a broad range of equipment and battery-related products, claims well-equipped facilities and quality control throughout production stages, and reports peak-season order fulfillment within 15 workdays. However, it explicitly has no in-stock capacity, so inventory-based production readiness is limited.

Customization capabilityThe supplier explicitly provides customization from samples, customization from designs, full customization, minor customization, and flexible customization. It also offers ODM services, directly supporting a strong customization capability.

Client casesThe supplier reports OEM service for known brands, customers in over 40 countries, and export sales of 71%–90% of total sales. However, it reports no cooperation with Fortune 500 companies, and no specific customer names or verifiable case details are provided.

Product Q&A

Q:What are the main products supplied?

We provide one-stop steel sales including steel coil, steel plate, steel profile, steel pipe, steel structure, and wind power tower barrel.

Q:What is the payment term?

30% T/T advance and 70% T/T balance before delivery.

Q:Can I get a free sample?

Yes, a small size sample is provided for free, but the client must bear the delivery fee.

Q:What is the lead time and delivery time?

Production is arranged immediately upon receipt of advance payment, and goods are shipped after payment of the balance. Peak and off-season lead times are within 15 workdays.

Q:What certifications do your products have?

Our products are qualified and approved by SGS or BV tests, meeting international standards such as GB, ASTM, JIS, and EN.