What standards do your products meet?

Products meet standards such as ASTM A53, A573, A283, BS1387, GB/T3091, ISO630, and JIS G3131.

How are the products packed and shipped?

Packing includes steel strips, woven cloth, or wooden pallets. Shipping is available by sea, air, or truck.

What is the maximum size available?

Sizes can go up to 500x500mm with a thickness of up to 217mm.

Durable Square Steel Tube for Heavy-Duty Structural Support

Name: Durable Square Steel Tube for Heavy-Duty Structural Support
Brand: Shanghai Changzeng Metal Co., Ltd.
SKU: 2329610465

Shanghai, ChinaShanghai Changzeng Metal Co., Ltd.

US$465.00-555.00

5 Tons

Sample price:US$18.00/piece.Request sample

Product profile

Customization

Available

After-sales Service

Support

Warranty

Support

Model NO.

Type

Welded Seamless

Technique

Hot Rolled

Material

Carbon Steel

Surface Treatment

Black

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

MOQ

Sample

Available

Delivery Lead Time

7-25 Working Days

Package

Steel Strip Bundle, Seaworthy Packing

Zinc Coating

40-600 G/M², Upon Request

Transport Package

in Bundles & Containers

Specification

13*13*1mm-160*160*8mm

Trademark

Origin

Shanghai

Production Capacity

5000 Tons/ Month,

Key features

Customizable Dimensions: Sizes range from 20x20mm to 500x500mm with thickness up to 217mm, cut to specific demands.

Extensive Material Options: Available in ASTM A36, A500, A53, SS400, Q235, Q345, and various other steel grades.

Versatile Surface Treatments: Options include black finish, hot-dipped galvanized, pre-galvanized, color painting, and coating.

Multiple Processing Services: Services include cutting, bending, punching, cold drawing, rolling, and forging.

Wide Application Range: Suitable for pipelines, boilers, hydraulics, oil/gas, machinery, construction, and mining.

Third-Party Inspection: Inspection services available from ISO, SGS, BV, and other recognized third-party agencies.

Flexible MOQ: Minimum order quantity is 3 tons, with samples available upon request.

Fast Delivery Capability: Lead time is 3-15 working days, supported by large stock and export experience.

Company profile

Years of Export ExperienceHigh Repeat Buyers ChoiceIn-stock CapacityQuality Assurance

Shanghai Changzeng Metal Co., Ltd.

Shanghai, China

Business Type: Manufacturer/Factory, Trading Company CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc.Export Year: 2016-01-13Nearest Port: Shanghai Port, Tianjin Port, Qingdao PortAverage Response Time: ≤3.70hTerms of Payment: LC, T/T, PayPal, etc.

AI-Powered supplier vetting

SummaryThe supplier is a Shanghai-based trading company that also identifies as a manufacturer/factory, with 19 years of export experience and 90% of sales from exports. It offers broad customization from samples, designs, and full-custom requirements, and reports standardized finished-product inspection instructions and quality assurance. However, the available information shows no new products in the past year, no ODM, SDK, overseas agents, overseas warehouse, showroom, or offline trade-show participation. Corrective/preventive action and complaint-handling procedures are undocumented, while supplier-service assessment procedures and approved supplier records are absent. Financial operating figures provided are zero, but their interpretation is not independently verifiable from the slices. Customer cases and certifications are not provided.

Supplier typeThe supplier is described as a trading company in Shanghai and is also identified as a Trading Company, Manufacturer/Factory. This indicates a mixed trading and manufacturing business classification, but the slices do not establish the scale or scope of its own production facilities.

After-Sales capabilityThe supplier reports in-stock service capacity and lead times within 15 working days in both peak and off-seasons. However, it has no overseas warehouse, overseas showroom, overseas agents or branches, and no written procedures or records for complaint handling or corrective and preventive actions, limiting evidence of a structured after-sales system.

Financial creditThe provided financial fields report zero operating revenue, profit, margins, current ratios, and cash outflows for the stated periods, while the supplier is listed as a limited company with registered capital information. These reported operating indicators provide explicit evidence of weak financial performance, although the slices do not explain the data quality or accounting context.

R&D capabilityThe supplier reports no new products in the past year, no ODM service, and no available SDK. These statements directly indicate limited demonstrated recent product-development and technical innovation capability.

Production capacityThe supplier is classified as both a trading company and manufacturer/factory, has in-stock capacity, and reports standardized instructions for finished-product inspection and quality assurance. Nevertheless, outsourcing procedures and manufacturing-capacity contract status are unknown, and only one quality assurance/quality control inspector is reported, so production depth cannot be fully confirmed.

Customization capabilityThe supplier explicitly offers customization from samples, customization from designs, full customization, minor customization, and flexible customization in both design-service and R&D-related descriptions. This is direct evidence of broad customization coverage, although it does not quantify engineering resources or production limits.