What is the average lead time?

The average lead time is within 15 workdays for both peak and off seasons.

How do you ensure product quality?

We perform 100% inspection (visual and function) and are ISO9001:2015 certified.

What is the surface treatment for these pipes?

The standard surface treatment is oiled.

Datang Factory Supply Carbon Steel Square and Rectangular Pipe

Name: Datang Factory Supply Carbon Steel Square and Rectangular Pipe
Brand: Cangzhou Datang Steel Pipe Co., Ltd.
SKU: 745348232

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.

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

9

8

7 Transport Package

Bundle

Specification

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

Trademark

datang

Origin

China

HS Code

73066100

Production Capacity

6600000ton/Year

Key features

17 Years Export Experience: Reputed processor and wholesaler with 17 years of global export history.

Wide Size Range: Outer diameter 20x20mm to 600x600mm, wall thickness 1mm-40mm.

Multiple Steel Grades: Available in A53, A106, S355JR, and other standard grades.

OEM/ODM Service: Supports full customization from samples, designs, and flexible options.

100% Quality Inspection: Strict visual and function inspection for all finished products.

ISO9001 Certified: Manufacturing process certified under ISO9001:2015 management system.

Flexible Payment Terms: Accepts LC, T/T, D/P, PayPal, and Western Union.

Fast Lead Time: Average lead time within 15 workdays for both peak and off seasons.

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.