What is the warranty period for this product?

We provide a 1-year warranty with quality assurance service for all our carbon steel square tubes.

What are the main applications for this square tube?

It is widely used for build construction, mechanical manufacture, structural framing, mechanical parts, and industrial equipment fabrication.

How is the product transported and packaged?

We offer bulk vessel and container shipment options, all in standard export packaging to protect the product during long-distance transit.

High-Strength Carbon Steel Square Tube for Mechanical and Construction Use

Name: High-Strength Carbon Steel Square Tube for Mechanical and Construction Use
Brand: Zhejiang Yingjia Steel Co., Ltd.
SKU: 2272346415

Zhejiang, ChinaZhejiang Yingjia Steel Co., Ltd.

US$650.00

1-24 Tons

US$600.00

25-98 Tons

US$550.00

99+ Tons

Sample price:US$20.00/piece.Request sample

Product profile

Customization

Available

After-sales Service

Quality Assurance

Warranty

1 Year

Model NO.

Square Steel Pipe

Type

Non-Alloy

Technique

ERW

Material

Carbon Steel

Surface Treatment

Shot/Sand Blasting Surface Treatment, Pickling

Usage

Build Construction Mechanical Manufacture

Section Shape

Square

Thickness

0.8mm-30mm

Alloy

Non-Alloy

Product Name

Carbon Steel Pipe

Tolerance

Standard

Delivery Time

5 to 25 Days

Length

Customized Length

Transportation

Bulk Vessel, Container Shipment

Steel Grade

Gr.a/B/C/D, S195jr, S235jr, S275jr, S355jr, S355j0

Process

Cutting Welding Bending Painting

Transport Package

Standard Export Packaging

Specification

15-1000mm

Trademark

Huatuo

Origin

Tianjin, China

Production Capacity

400, 000ton/Year

Key features

Customizable Dimensions: Side size 15-1000mm, thickness 0.8-30mm, and customized length available.

Wide Steel Grade Range: Supports Gr.A/B/C/D, S195jr, S235jr, S275jr, S355jr, S355j0, S355j2, S460jr, S600jr.

One-Stop Processing: Expert services include cutting, welding, bending, and painting.

Flexible Delivery: Delivery window of 5 to 25 days to suit project timelines.

OEM/ODM Support: OEM and ODM services available for personalized project needs.

High Production Capacity: Annual output of 400,000 tons ensures consistent large-scale supply.

Surface Treatment Options: Shot/sand blasting, pickling, and anti-rust oil treatment for corrosion resistance.

1-Year Warranty: Comprehensive 1-year warranty with quality assurance service.

Company profile

Zhejiang Yingjia Steel Co., Ltd.

Zhejiang, China

CertifiedBusiness Type: Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 5 years CertifiedNearest Port: Beilun portAverage Response Time: >24h

AI-Powered supplier vetting

SummaryThe supplier demonstrates established regional market experience, long-term cooperation with recognized local enterprises, and reported sales volume exceeding 380,000 tons in 2024. It offers broad customization, OEM, and ODM services, and has documented procedures for corrective actions and customer complaints. However, its service-capability assessment procedure lacks written procedures or records, and the approved-supplier list is incomplete. The supplier is not identified as a professional technical supplier, does not provide 3D software design or SDK services, and reported no new products in the past year. It lacks inventory, overseas warehouses, overseas showrooms, overseas agents or branches, and has not participated in offline trade shows. Sustainability-related evidence is also weak because no recent fire drills or factory environmental impact assessment report were reported. Certification information is not provided.

After-Sales capabilityThe supplier has clear procedures and followed records for corrective and preventive actions and customer complaint handling, supporting a documented service response capability. However, service-capability assessment lacks written procedures or records, and the supplier has no overseas warehouse, showroom, agent, or branch support.

R&D capabilityThe supplier does not have professional technical R&D capability, SDK availability, or 3D software design services, and reported no new products in the past year. ODM capability is available, but the evidence does not demonstrate recent product innovation.

Production capacityThe supplier reported total sales volume exceeding 380,000 tons in 2024 and has established cooperation with recognized local enterprises, indicating significant commercial supply activity. Nevertheless, it explicitly lacks in-stock capability and reported peak-season lead time of one month, while off-season lead-time data is unclear and inconsistent.

Customization capabilityThe supplier explicitly offers customization from samples, designs, full customization, minor customization, and flexible customization. It also provides OEM and ODM services, directly supporting broad customization capability.

Client casesThe supplier cites long-term cooperation with Zhejiang Yasha Group and Southeast Steel Structure, as well as agents and end customers across Zhejiang Province. It also reports recognition from numerous enterprises and customers, providing concrete regional customer references.

Product Q&A

Q:What are the available customization options for dimensions?

We offer customizable side sizes from 15mm to 1000mm, wall thickness from 0.8mm to 30mm, and tailored lengths to meet diverse design and installation needs.

Q:Which steel grades are available for this square tube?

We support a full range of steel grades including Gr.A/B/C/D, S195jr, S235jr, S275jr, S355jr, S355j0, S355j2, S460jr, and S600jr.

Q:What processing services do you provide?

We offer expert one-stop processing services such as cutting, welding, bending, and painting, along with surface treatments like shot/sand blasting and pickling.

Q:What is the delivery time for orders?

We provide a flexible delivery window of 5 to 25 days to suit your project timeline.

Q:Do you support OEM or ODM services?

Yes, we provide OEM support for personalized project needs and have ODM service available.