What is the warranty period?

We provide a 1-year warranty for our products.

What are the common applications for these tubes?

They are used in curtain walls, construction, machinery, ship building, solar power brackets, steel structures, power plants, and automotive chassis.

Where is the port of shipment?

Shipment is available from XinGang Port and Tianjin, China.

Best Pre-Gi Carbon Rectangular and Square Tube Supplier

Name: Best Pre-Gi Carbon Rectangular and Square Tube Supplier
Brand: Tianjin Tianyingtai Steel Pipe Co., Ltd.
SKU: 787435862

Tianjin, ChinaTianjin Tianyingtai Steel Pipe Co., Ltd.

US$600.00

25 Tons

Sample price:US$10.00/piece.Request sample

Product profile

Customization

Available

After-sales Service

Yes

Warranty

1 Year

Type

Welded

Technique

Cold Drawn

Material

Carbon Steel

Surface Treatment

Galvanized

Usage

Pipeline Transport, Hydraulic/Automobile Pipe, Oil/Gas Drilling, Chemical Industry, Mining

Section Shape

Round

Transport Package

Export Package

Specification

outside dia. 20mm-113mm

Trademark

TYT

Origin

China

HS Code

73063090

Production Capacity

500, 000 Ton/Year

Key features

Wide Size Range: Rectangular 20x40mm-50x150mm, Square 16x16mm-100x100mm, Round 1/2'-4'

Diverse Wall Thickness: Available from 0.8mm to 2.3mm depending on size and shape

Multiple Surface Treatments: Galvanized, Black Painted, Oiled, PE, 3PE, FBE, and Anti-corrosion coatings

Extensive Material Options: Q195, Q235, Q345, SS330, SS400, S235JR, S355JR, SS500, ST37, ST42, ST52

Customizable End Types: Plain, Beveled, Chamfered, Grooved, with Plastic or Iron protectors

Flexible Packaging: Steel ribbon bundles, plastic wrap, bulk, or custom customer requirements

Fast Delivery: 15 to 30 days depending on order quantity and specifications

ISO 9001 Certified: Manufacturer with over a decade of experience in welded and galvanized pipes

Company profile

Tianjin Tianyingtai Steel Pipe Co., Ltd.

Tianjin, China

Business Type: Manufacturer/Factory, Trading CompanyAverage Response Time: ≤10.07h

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.