What surface treatments are offered for the steel?

Surface treatment options include painting, hot galvanizing, and anti-rust painting to ensure durability and corrosion resistance.

What are the minimum order quantity requirements?

The Minimum Order Quantity (MOQ) is 1 unit, allowing for flexible purchasing options.

What certifications does the company hold?

The company is ISO9001:2015 certified and has been exporting for 18 years, with repeat buyers choice rates between 80% and 100%.

High-Quality ASTM A500 Gr. B Black Carbon Steel Square Tube

Name: High-Quality ASTM A500 Gr. B Black Carbon Steel Square Tube
Brand: Cangzhou Datang Steel Pipe Co., Ltd.
SKU: 1937266145

Hebei, ChinaCangzhou Datang Steel Pipe Co., Ltd.

US$650.00-800.00

1 Ton

Sample price:US$1.00/piece.Request sample

Product profile

Customization

Available

Type

Square

Standard

AISI, ASTM, DIN, JIS, GB, BS

Model NO.

1''-24''

Composition

C Si Mn S P

Technique

Welded

Shape

Square and Rectangular

Surface Treatment

Oiled

Special Use

Wear Resistant Steel, Silicon Steel, Cold Heading Steel, Free Cutting Steel, Mold Steel

Application

Construction

Inspection

SGS BV

Transport Package

Bundle

Specification

OD: 20X20-600X600 THK: 1mm-40mm

Trademark

datang

Origin

China

HS Code

73066100

Production Capacity

6600000ton/Year

Key features

Wide Application Scope: Suitable for workshops, logistics, mining, oil & gas, and commercial centers.

Fast Construction Time: 3,000m2 building finished in 30 days by 5 workers, reducing investment costs.

High Strength & Light Weight: Large span structures offer high strength, light weight, and good fire resistance.

Flexible Customization: OEM/ODM available with customization from samples, designs, and flexible options.

Strict Quality Control: 100% inspection including visual and function checks with traceable raw materials.

Durable Surface Treatment: Options include painting, hot galvanizing, and anti-rust painting for corrosion resistance.

Low Environmental Impact: Easy to move and assemble, causing no pollution to the environment.

Versatile Material Options: Available in Q235, Q345, and various steel grades with standard certifications.

Company profile

Importers and ExportersHigh Repeat Buyers ChoiceR&D CapabilitiesManagement Certification

Cangzhou Datang Steel Pipe Co., Ltd.

Hebei, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 18 Years CertifiedNearest Port: Tianjin PortAverage Response Time: ≤0.59h

AI-Powered supplier vetting

SummaryThe supplier provides 3D software design, OEM, ODM, and broad customization services, supported by 10 production lines and specialized fin-tube and machining equipment. It holds an ISO9001:2015 management-system certificate, has 18 years of export experience, and reports that 71%–90% of sales come from exports. However, its R&D scale is limited to one engineer, no new products were launched in the past year, and no SDK is available. Quality-control test equipment is reported as zero, and continuous quantity reconciliation is not performed for every batch. Overseas service infrastructure is limited: no overseas warehouse, showroom, agent, or branch is reported. Service procedures exist for corrective actions and customer complaints, but written records are absent.

Supplier typeThe supplier is a manufacturing-oriented exporter offering OEM and ODM services, with 10 production lines, self-operated import/export rights, 18 years of export experience, and 71%–90% export sales. Its listed equipment includes fin-tube machinery, cutting, turning, beveling, bending, cleaning, and painting facilities.

CertificationsThe supplier reports holding an ISO9001:2015 management-system certificate. This is explicit certification evidence, although no additional certifications are provided.

R&D capabilityThe supplier offers 3D software design, ODM, and product-improvement support, and maintains design input, output, review, verification, and validation documentation. However, it has only one R&D engineer, launched no new products in the past year, and has no available SDK, indicating limited demonstrated innovation output.

Customization capabilityThe supplier explicitly supports customization from samples and designs, full, minor, and flexible customization, as well as 3D software design, OEM, and ODM services. These statements provide direct evidence of broad customization capability.

Product Q&A

Q:What are the main applications for this steel tube?

It is widely used for steel structure buildings including workshops, logistics facilities, mining, oil and gas industry, production facilities, and commercial centers.

Q:How fast is the construction time for a steel structure building?

Construction is efficient; for example, a 3,000m2 building can be finished within 30 days by 5 workers, significantly reducing investment costs.

Q:What customization services are available?

We offer OEM and ODM services with flexible customization options including customization from samples, designs, full customization, and minor adjustments.

Q:What quality inspection processes are performed?

We conduct 100% inspection on finished products, including visual and function inspections, with traceable raw materials and 2 dedicated QA/QC inspectors.

Q:What are the payment terms and lead times?

Payment terms include LC, T/T, D/P, PayPal, and Western Union. The average lead time is within 15 workdays for both peak and off-peak seasons.