Can the surface treatment be customized?

Yes, we provide galvanized or naked surface treatments according to customer needs.

What standards do your products comply with?

Our products comply with ASTM-A53A, BS1387-1985, and GB/T3091-2001 standards.

What are the common applications for these steel pipes?

They are widely used in construction, decoration, furniture, traffic, communication, and low-pressure liquid delivery.

Direct Factory Supply Black Steel Square Rectangular Steel Pipe

Name: Direct Factory Supply Black Steel Square Rectangular Steel Pipe
Brand: Tianjin Tianyingtai Steel Pipe Co., Ltd.
SKU: 732395032

Tianjin, ChinaTianjin Tianyingtai Steel Pipe Co., Ltd.

US$500.00

10-199 Tons

US$490.00

200-499 Tons

US$485.00

500+ Tons

Product profile

Customization

Available

Type

Welded

Technique

Hot Rolled

Model NO.

QB235

Material

Carbon Steel

Surface Treatment

Black

Usage

Construction & Decoration

Section Shape

Square

Shape

Square, Rectangular

Zinc Content

60-300g/Square Meter

Length

0.5m-12m

Thickness

0.8mm-12mm

Export Time

Since 2006

Transport Package

Export Packing

Specification

Size: 10*10---400 X 400mm and Thickness: 0.8-12.0m

Trademark

TYT

Origin

Tianjin China

HS Code

7306610000

Production Capacity

20, 000 Tons/Month

Key features

Wide Size Range: Square/Rectangular pipes from 10x10mm to 600x600mm with various thickness options.

Multiple Material Grades: Available in Q195, Q215, Q235, and Q345 carbon steel for diverse strength requirements.

Versatile Surface Options: Choose between black, galvanized, or naked surface treatments based on customer preference.

Broad Application Scope: Ideal for construction, decoration, furniture, traffic, and low-pressure liquid delivery.

Strict Quality Standards: Complies with ASTM-A53A, BS1387-1985, and GB/T3091-2001 international standards.

Established Supplier: Tianjin TYT has exported to Europe, Asia, and Africa since 2006 with high reputation.

Flexible Packaging: Options include steel scrips, plastic wrap, or bulk packing to meet client requirements.

Company profile

Tianjin Tianyingtai Steel Pipe Co., Ltd.

Tianjin, China

Business Type: Manufacturer/Factory, Trading CompanyAverage Response Time: ≤4.60h

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.