What payment terms do you accept?

We accept T/T in advance and L/C at sight.

What standards does the product comply with?

The pipes comply with ASTM-A53A, BS1387-1985, and GB/T3091-2001.

ISO Standard Black Square Pipe in Stock

Name: ISO Standard Black Square Pipe in Stock
Brand: Tianjin Tianyingtai Steel Pipe Co., Ltd.
SKU: 729280762

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

Customizable Dimensions: Length 0.5m-12m and thickness 0.8mm-12mm available per customer requirements.

Surface Treatment Options: Galvanized or naked surface available based on customer needs.

Wide Material Selection: Available in Q195, Q215, Q235, and Q345 carbon steel grades.

Extensive Size Range: Outer diameter 9.5-305mm and section sizes 10x10 to 600x600mm.

High Zinc Coating: Zinc content ranging from 60 to 300g per square meter for corrosion resistance.

Multiple Standards Compliance: Meets ASTM-A53A, BS1387-1985, and GB/T3091-2001 standards.

Fast Delivery: Leading time of 20 days for orders.

Versatile Applications: Suitable for furniture, construction, traffic, communication, and low-pressure liquid delivery.

Company profile

Tianjin Tianyingtai Steel Pipe Co., Ltd.

Tianjin, China

Business Type: Manufacturer/Factory, Trading CompanyAverage Response Time: ≤10.61h

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.