How does the company ensure quality control?

Quality is controlled through three levels: inspection on the production line, full inspection during warehousing, and pre-loading tests.

What raw materials are used for the pipes?

Raw materials include grades Q195, Q235, Q235B, and Q345, sourced from stable suppliers like Haigang and Yurunde.

Pre-Galvanized Rectangular Hollow Section Steel Tubes

Name: Pre-Galvanized Rectangular Hollow Section Steel Tubes
Brand: Tianjin Tianyingtai Steel Pipe Co., Ltd.
SKU: 1916422642

Tianjin, ChinaTianjin Tianyingtai Steel Pipe Co., Ltd.

US$650.00

10-49 Tons

US$640.00

50-69 Tons

US$630.00

70+ Tons

Product profile

Customization

Available

Type

Galvanized Steel Pipe

Technique

ERW

Material

Galvanized Coil

Surface Treatment

Galvanized

Usage

Oil/Gas Drilling, Chemical Industry, Construction & Decoration, Special Purpose

Section Shape

Square and Rectangular

Transport Package

Bundle, PVC Coating or as Customer Request.

Specification

Thickness: 0.8-10mm

Trademark

TYT

Origin

Tianjin

HS Code

7306309000

Production Capacity

450000tons Per Year

Key features

Customizable Zinc Coating: Zinc coating can be customized up to 280 grams for enhanced protection.

High Purity Zinc Material: Uses 99.99% pure zinc wire with 1.5mm diameter for superior weld seam rust resistance.

Corrosion Resistant: Passes salt spray test for at least 8 hours without corrosion; anti-rust and durable.

Patented Passivation Tech: Own invention patent for automatic spraying system ensures even adhesion and beauty.

Multi-Size Customization: Various sizes of galvanized square pipes can be customized to meet specific needs.

Certified Quality Control: CNAS accredited lab; ISO, CE, LR certified; supports third-party testing like SGS.

Long Service Life: Durable design with a working life of 5-8 years; stable and strong performance.

Trusted Supplier: 11-year Alibaba Gold Supplier; recognized as Tianjin Famous Trademark since 2014.

Company profile

Tianjin Tianyingtai Steel Pipe Co., Ltd.

Tianjin, China

Business Type: Manufacturer/Factory, Trading CompanyAverage Response Time: ≤8.13h

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.

Product Q&A

Q:Can the zinc coating be customized?

Yes, the zinc coating can be customized for customers, with a maximum thickness of up to 280 grams.

Q:What is the purity of the zinc wire used?

The zinc wire used has a purity of 99.99% zinc content to ensure the welded seam remains anti-rust.

Q:What is the expected working life of the product?

The product features long durability with a working life that can reach up to 5-8 years.

Q:What certifications does the product have?

We have ISO, CE, and LR certifications, as well as a CNAS Laboratory Accreditation Certificate and support for third-party testing like SGS and BV.

Q:What are the main applications for these steel tubes?

They are used for oil/gas drilling, chemical industry, construction & decoration, basic building, greenhouse construction, high-speed fences, and photovoltaic stents.

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Pre-Galvanized Rectangular Hollow Section Steel Tubes