What are the available sizes and thicknesses?

Sizes range from 15x15mm to 500x600mm, with thickness options from 1.2mm up to 20.0mm.

Can you customize the products?

Yes, we offer full customization from samples, designs, and minor customizations.

What are the payment terms?

We accept LC, T/T, D/P, PayPal, Western Union, and small-amount payments.

Rectangular Tube

Name: Q345 Welded Seamless Mild Carbon Steel Pipe/Black Steel Pipe Square/Rectangular Tube
Brand: Shandong Hongyan Metal Material Co., Ltd.
SKU: 2024974082

Shandong, ChinaShandong Hongyan Metal Material Co., Ltd.

US$560.00

25-99 Tons

US$513.00

100-1,499 Tons

US$499.00

1,500+ Tons

Sample price:US$100.00/piece.Request sample

Product profile

Customization

Available

After-sales Service

Provided

Warranty

Provided

Model NO.

Q345

Type

Seamless

Technique

Hot Rolled

Material

Carbon Steel

Surface Treatment

Black

Usage

Pipeline Transport, Boiler Pipe, Hydraulic/Automobile Pipe, Oil/Gas Drilling, Machinery Industry, Chemical Industry, Mining, Construction & Decoration

Section Shape

Rectangular

Product Name

Square/Rectangular Pipe

Technology

Hot Rolled/Cold Rolled/ERW

Grade

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

Alloy or Not

Non-Alloy

Surface

Black Painted

Thickness

0.5-20mm

Size

20*40-300*500mm

Length

3-12m

Oiled or Non-Oiled

Non-Oiled

Color

Natural Color

Tolerance

MOQ

5tons

Package

Standard Seaworthy Package

Application

Construction Structure

Transport Package

Standard Seaworthy Package

Specification

20*40-300*500mm

Trademark

Origin

Shandong, China

HS Code

7216210000

Production Capacity

5000tons Per Month

Key features

Comprehensive Warranty: Quality and quantity claims accepted within 90 days of arrival at destination port.

Free Sample Offer: One free 20cm high-quality sample available with freight collected for serious buyers.

Fast Response Time: Professional sales manager provides quick replies within 24 hours.

Extensive Size Range: Available sizes from 15x15mm to 500x600mm with thickness up to 20mm.

Third-Party Inspection: Accepts inspections from SGS, BV, and other third-party agencies appointed by buyers.

Global Export Experience: Successfully exported to over 70 countries across Europe, Middle East, Africa, and more.

Certified Quality Control: Holds UL, ISO9001/18001, FPC certificates with CNAS accredited lab support.

Customization Options: Full customization available from samples, designs, and minor adjustments.

Company profile

Fast DeliveryQuality AssuranceProduct CertificationHigh Repeat Buyers Choice

Shandong Hongyan Metal Material Co., Ltd.

Shandong, China

CertifiedBusiness Type: Trading Company CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 4 years CertifiedNearest Port: Qingdao PortAverage Response Time: ≤1.45h CertifiedTerms of Payment: LC, T/T, D/P, etc.

AI-Powered supplier vetting

SummaryShandong Hongyan Metal Material Co., Ltd. is a China-based trading company established in 2020, although the supplied records also identify the company as a factory and describe broad metal-product manufacturing activities. It offers extensive customization, but does not provide ODM, SDK, or OEM services for popular brands and reports no new products in the past year. The supplier states annual production capacity of approximately 200,000 tons and exports to multiple countries, with exports representing 90% of total sales. However, finished-product inspection is performed by packing staff, and documented supplier-service assessment and corrective-action procedures are absent. The supplier reports CE certification and regular fire drills, but lacks a factory environmental impact assessment report. In-stock capability, overseas warehouses, showrooms, and overseas agents or branches are not available. Customer locations and export experience are described, but named customer cases are not provided.

CertificationsThe supplier reports CE and other certification under sustainable development and product certification capability. The specific products, certificate validity, and scope of the CE certification are not provided.

After-Sales capabilityThe records show a maximum stated off-season lead time of within 15 workdays, but finished products are checked by packing staff. The supplier has no in-stock capability, overseas warehouse, overseas showroom, or overseas agent/branch, and has no written service-capability assessment or corrective/preventive-action procedures. These records do not establish a robust after-sales service system.

R&D capabilityThe supplier reports no new products during the past year, no ODM service, and no available SDK. Although it offers design-related customization, the explicit absence of new-product development and ODM/SDK support indicates limited demonstrated innovation capability.

Production capacityThe supplier’s stated scope includes multiple metal and machinery manufacturing activities, and its company description claims production capacity of approximately 200,000 tons per year. However, the records also classify it as a trading company and do not provide independent verification of facilities, equipment, or capacity utilization.

Customization capabilityThe supplier explicitly offers customization from samples, customization from designs, full customization, and minor customization. This is consistent across both design-service records and demonstrates broad stated customization coverage, despite the absence of ODM service.