What payment terms are accepted?

We accept T/T, Western Union, and LC (Letter of Credit) as payment terms.

What is the warranty period for the product?

We provide a 1-year warranty for quality assurance.

What are the main applications of this square steel pipe?

It is ideal for construction, mechanical manufacture, structural framing, mechanical parts, and industrial equipment due to its durability and strength.

Premium Black Steel Tube for Heavy-Duty Mechanical Construction Projects

Name: Premium Black Steel Tube for Heavy-Duty Mechanical Construction Projects
Brand: Zhejiang Yingjia Steel Co., Ltd.
SKU: 2287165745

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.

High Production Capacity: Annual output of 400,000 tons ensures stable supply for bulk orders.

Flexible Delivery Options: Delivery time ranges from 5 to 25 days for efficient project scheduling.

Multiple Steel Grades: Supports Gr.A/B/C/D, S195jr, S235jr, S275jr, S355jr, S355j0, S355j2, S460jr, S600jr.

Comprehensive Processing: One-stop services including cutting, welding, bending, and painting.

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

OEM/ODM Support: Full customization and minor customization options for specific project needs.

1-Year Warranty: Quality assurance with a 1-year warranty period for peace of mind.

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 the steel pipe?

We offer customized length, side sizes from 15mm to 1000mm, and wall thickness from 0.8mm to 30mm. OEM and ODM services are also available for specific project requirements.

Q:What is the delivery time for orders?

The delivery time typically ranges from 5 to 25 days, depending on the order quantity and specific requirements.

Q:What steel grades are available for this carbon steel pipe?

We support multiple steel grades including Gr.A/B/C/D, S195jr, S235jr, S275jr, S355jr, S355j0, S355j2, S460jr, and S600jr to meet various load-bearing needs.

Q:What surface treatments are provided?

Surface treatments include shot/sand blasting, pickling, and anti-rust oil treatment to enhance corrosion resistance and lifespan.

Q:What is the minimum order quantity (MOQ)?

The minimum order quantity is 1 ton.