Do you offer customization services?

Yes, we offer full customization including cutting, bending, punching, and surface treatments like galvanizing and painting.

What are the standard sizes for the pipes?

Sizes range from 20x20mm to 500x500mm with thicknesses varying from 1.0mm to 217mm.

What are the shipping methods available?

We offer shipping by sea (bulk or container), air (UPS/DHL/FEDEX), and truck based on customer requests.

Carbon Square Tubing with Round Inner for Structure Pipe Application

Name: Carbon Square Tubing with Round Inner for Structure Pipe Application
Brand: Shanghai Changzeng Metal Co., Ltd.
SKU: 843591005

Shanghai, ChinaShanghai Changzeng Metal Co., Ltd.

US$430.00-520.00

3 Tons

Sample price:US$15.00/piece.Request sample

Product profile

Customization

Available

Type

Seamless

Technique

Hot Rolled

Material

Carbon Steel

Surface Treatment

Galvanized

Usage

Machinery Industry, Chemical Industry, Mining, Construction & Decoration

Section Shape

Square

Delivery Time

3-15 Working Dyays After Received Your Deposit

Sample

Available

Certificate

ISO/SGS/BV

Quality

Prime

Application

Structure Pipe

Certification

Bsi

Alloy or Not

Not Alloy

Surface

Galvanized, Black, Painting

Sample Time

2-3days

Standard2

5CT, ASTM A312-2001

Transport Package

Bulk or Container

Specification

50*50*3.0mm

Trademark

Origin

Shanghai

HS Code

7306309000

Production Capacity

5000tons/Month

Key features

Extensive Size Range: Square and rectangular pipes from 20x20mm to 500x500mm with various thicknesses.

Customizable Processing: Services include cutting, bending, punching, galvanizing, and painting based on requirements.

Wide Material Selection: Available in ASTM 106, SS400, St37, St52, S235JR, S355TRH, Q195, Q235, Q345, and more.

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

Flexible Delivery Time: Lead time is 3-15 working days after deposit, with fast delivery available due to large stock.

Third-Party Inspection: Inspection services from ISO, SGS, and BV are available for quality assurance.

Diverse Application Areas: Suitable for machinery, chemical industry, mining, construction, shipbuilding, and bridges.

Multiple Payment Terms: Accepts T/T, L/C, PayPal, Western Union, and credit insurance for secure transactions.

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: ≤3.85hTerms 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.