What payment terms are accepted?

We accept LC, T/T, D/P, PayPal, Small-amount payment, and Western Union.

How is the quality of the finished products ensured?

We perform 100% inspection including visual and function checks. Raw materials are traceable, and QA/QC is managed by 2 inspectors.

What are the main applications of these steel tubes?

They are widely used in construction works such as workshops, interiors, scaffolding, and mechanical manufacturing due to their high durability and corrosion resistance.

Factory Supply ASTM A53 Gr a Square and Rectangular Steel Tube

Name: Factory Supply ASTM A53 Gr a Square and Rectangular Steel Tube
Brand: Cangzhou Datang Steel Pipe Co., Ltd.
SKU: 745348362

Hebei, ChinaCangzhou Datang Steel Pipe Co., Ltd.

US$650.00-800.00

1 Ton

Product profile

Customization

Available

Type

Square

Standard

AISI, ASTM, DIN, JIS, GB, BS

Model NO.

Outer Diameter: 20X20-600X600

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

Special Pipe

EMT Pipe, Thick Wall Pipe

Grade

Q235, Q235B, S275, S275jr, A53, St37, etc

Oiled or Non-Oiled

Non-Oiled

Material

Q195/Q215/Q235/Q345/#20/#45

Transport Package

Bundle

Specification

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

Trademark

datang

Origin

China

HS Code

73066100

Production Capacity

6600000ton/Year

Key features

Wide Size Range: Outer diameter 20x20-600x600mm, wall thickness 1-40mm, length 4-14M.

Multiple Standards: Complies with ASTM A53, A106, AISI, DIN, JIS, GB, and BS standards.

High Durability: Perfect resistance to corrosion and rust, suitable for sea area construction.

Flexible Customization: Supports full customization, minor customization, and customization from samples or designs.

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

Versatile Applications: Ideal for construction, scaffolding, workshops, and mechanical manufacturing.

OEM/ODM Service: Professional manufacturer offering OEM and ODM services with 18 years experience.

Low MOQ: Minimum order quantity is just 1 unit, supporting small-amount payments.

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: ≤0.08h

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.