Do you offer quality testing services?

Yes, we have an independent laboratory where customers can test physical and chemical properties on-site.

What certifications do you have?

Our products are certified with ISO and CE standards.

How are the products packed?

Products are packed with plastic caps, wrapped in plastic bags, and bundled with polythene and straps.

Mild Steel Black Square Tube and Pipe

Name: Mild Steel Black Square Tube and Pipe
Brand: Tianjin Tianyingtai Steel Pipe Co., Ltd.
SKU: 1921785142

Tianjin, ChinaTianjin Tianyingtai Steel Pipe Co., Ltd.

US$550.00

10 Pieces

Sample price:US$600.00/ton.Request sample

Product profile

Customization

Available

Type

Welded

Technique

ERW

Material

Carbon Steel

Surface Treatment

Black

Usage

Construction & Decoration

Section Shape

Square

Process

Threaded, Coupler, PVC Cap

Transport Package

Strapped in Bundle, Woven Bag

Specification

10*10-400*400 W. T: 1.5mm-20mm

Trademark

Tianyingtai

Origin

Tianjin China

HS Code

7306309000

Production Capacity

6000ton/Month

Key features

Customizable Surface Treatment: Available in bare, oiled, black painted, pre-galvanized, or hot-dipped galvanized finishes.

Flexible Size Options: Square sizes range from 10x10 to 400x400mm with lengths from 0.3 to 13 meters.

Multiple End Processing: Ends can be plain, beveled, threaded with sockets, necked down, expanded, or punched.

Wide Material Selection: Available in Q195, Q215, Q235, Q345, or mixed carbon steel materials.

ISO and CE Certified: Products meet international standards with ISO and CE certifications.

On-site Quality Testing: Independent laboratory available for customers to test physical and chemical properties.

Fast Delivery Time: Delivery within 15-20 days after receiving 30% deposit.

Secure Packing Standard: Plastic caps, bags, and polythene strapped bundles ensure safe transport.

Company profile

Tianjin Tianyingtai Steel Pipe Co., Ltd.

Tianjin, China

Business Type: Manufacturer/Factory, Trading CompanyAverage Response Time: ≤9.58h

AI-Powered supplier vetting

SummaryTianjin TianYingTai (TYT) Steel Pipe Co., Ltd. is a combined steel manufacturing and processing supplier with stated experience of 18 years, 13 steel-pipe production lines, 10 processing lines, and two hot-dipped galvanizing lines. Its business scope covers steel rolling, metal structures and materials, metal-product R&D, and photovoltaic equipment sales. The supplier holds ISO9001:2015, ISO14001:2015, and ISO45001:2018 certifications, and reports quality assurance and inventory capacity. However, it has no available SDK, no overseas warehouse, showroom, agents, or branches, and no participation in offline trade shows. Manufacturing capacity is not fully verifiable because no valid contract with related subcontractors is reported. Financial records are referenced by year, but no substantive financial results are provided. Formal complaint-handling, corrective-action, and approved-supplier procedures are also absent from the evidence.

Supplier typeThe supplier is identified as a combined company engaged in steel production, sales, processing, greenhouse engineering, export, and related metal-product activities. Its stated business scope also includes steel rolling, metal structures, metal materials, metal-product R&D, and photovoltaic equipment and component sales, indicating a manufacturer with integrated processing and trading activities.

CertificationsThe supplier reports ISO9001:2015 and ISO45001:2018 certificates, as well as ISO14001:2015 certification and other certifications. These explicitly demonstrate certified quality, environmental, and occupational-health-and-safety management coverage.

Production capacityThe supplier reports 18 years of experience, 13 steel-pipe production lines, 10 processing lines, two environmental hot-dipped galvanizing lines, and inventory capacity. However, it also reports no valid manufacturing-capacity contract with associated subcontractors, while another record states seven production lines, so the full capacity profile is not entirely consistent.

Customization capabilityThe supplier explicitly provides steel processing, metal-structure manufacturing, metal-material manufacturing, and greenhouse engineering with accessories, supported by its own factory and processing center. These activities demonstrate relevant processing and product adaptation capability, although specific customization examples or limits are not provided.