What materials are used for these pipes?

We use Q195, Q235, Q345, and other grades like 45#, 10Cr9Mo1VNb, and A315.

What is the outer diameter range?

The outer diameter ranges from 10x10mm to 1000x1000mm for square pipes and 10x20mm to 700x300mm for rectangular pipes.

Do you provide after-sales services?

Yes, we provide bending, welding, cutting, and decoiling services.

High Quality Galvanized Square and Rectangular Steel Pipes and Tubes

Name: High Quality Galvanized Square and Rectangular Steel Pipes and Tubes
Brand: Zhejiang Zhong Ding Iron and Steel Co., Ltd.
SKU: 1966015565

Zhejiang, ChinaZhejiang Zhong Ding Iron and Steel Co., Ltd.

US$610.00

1-9 Tons

US$580.00

10-49 Tons

US$550.00

50+ Tons

Product profile

After-sales Service

Bending,Welding,Cutting,Decoiling

Standard

AISI

Certification

RoHS

Technique

Cold Drawn

Wall Thickness

Thick

Surface Treatment

Galvanized

Alloy

Non-alloy

Transport Package

Standard Packing

Specification

length 3-12m

Trademark

zhongding

Origin

China

Production Capacity

2000tonnes Per Week

Key features

Wide Size Range: Outer diameter from 10x10mm to 1000x1000mm and wall thickness 0.6-25mm.

Multiple Surface Options: Available in Black, Pre-galvanized, Oiled, Powder Coating, and Hot-dipped Galvanized.

Customizable Design: Special design, necking down, and punching holes available according to requirements.

Diverse Material Grades: Includes Q195, Q235, Q345, 45#, and various international standard grades.

Flexible Length: Standard lengths from 5.8m to 12m, customizable upon request.

ISO9001 Certified: All production processes strictly follow ISO9001:2000 standards.

Versatile Applications: Suitable for construction, machinery, agriculture, water/gas pipes, and furniture.

Comprehensive Testing: Includes chemical composition, mechanical properties, hydrostatic, and nondestructive testing.

Company profile

Fast DeliveryLow MOQCustomization from SamplesR&D Capabilities

Zhejiang Zhong Ding Iron and Steel Co., Ltd.

Zhejiang, China

CertifiedBusiness Type: Trading Company CertifiedCustomization Options: Customization from Samples CertifiedExport Year: 4 Years CertifiedNearest Port: Ningbo PortAverage Response Time: ≤6.44h CertifiedTerms of Payment: LC, T/T, D/P, etc.

AI-Powered supplier vetting

SummaryZhejiang Zhong Ding Iron and Steel Co., Ltd. is a China-based limited trading company established in 2020 with 14 employees and a Ningbo, Zhejiang location. The supplier reports large-scale steel production integration, including 8 hot-rolling piercing lines and 30 cold-rolling units, with a stated production range beginning at 10 mm and extending to 219 mm. It has exported for four years, with exports representing 71%–90% of total sales, and has attended the Dubai Fair. The supplier reports new-product activity and sample-based customization, but has only one R&D engineer and does not provide ODM, well-known-brand OEM, or SDK services. No overseas agents, branches, warehouse, showroom, or in-stock service capability are reported. Financial records are referenced for 2022–2024, but no financial results are provided. Evidence is insufficient to confirm certifications, documented quality assurance, raw-material traceability, or customer cases.

Supplier typeThe supplier is identified as a trading company and limited company, while its description states that it integrates production, sales, and trade. Its registered location is Ningbo, Zhejiang, China, and its business scope includes technology import and export, import and export agency, and goods import and export subject to applicable approvals.

R&D capabilityThe supplier reports one R&D engineer and new products launched during the past year. It does not provide ODM services, well-known-brand OEM services, or SDK availability, indicating some product-development activity but limited documented breadth of innovation services.

Production capacityThe company description reports 8 hot-rolling piercing production lines and 30 cold-rolling units, with a stated production range of 10 mm to 219 mm. However, the supplier also reports no in-stock capacity, while outsourcing procedures and manufacturing-capacity contracts are unknown; the stated production infrastructure nevertheless provides explicit evidence of production capability.

Customization capabilityThe supplier explicitly offers customization from samples and reports product R&D activity. At the same time, it does not offer ODM services, so the evidence supports sample-based customization but not broader independent design or ODM capability.