What certifications do you have?

Our products comply with ASTM A500, GBT 6728, GB T 3094, and ISO 9001-2008.

Can I request a free sample?

Yes, we provide free samples for customers to check product quality.

What is the zinc coating thickness?

Pre-galvanized coating is 60-150g/m2, and hot-dip galvanized is over 200g/m2.

Pre Galvanized Square and Rectangular Hollow Section

Name: Pre Galvanized Square and Rectangular Hollow Section
Brand: Tianjin Tianyingtai Steel Pipe Co., Ltd.
SKU: 760176022

Tianjin, ChinaTianjin Tianyingtai Steel Pipe Co., Ltd.

US$500.00-600.00

5 Pieces

Sample price:US$10.00/piece.Request sample

Product profile

Customization

Available

Type

Welded

Technique

Hot Rolled

Model NO.

TYT

Material

Carbon Steel

Surface Treatment

Galvanized

Usage

Construction & Decoration

Section Shape

Square

Outer Dia.

15*15-100*100

Length

5.8m or 6m

Transportation

by Container

Thickness

0.5-2.3mm

Transport Package

Standard Export Packing

Specification

Bs1387-1985/ASTM A53

Trademark

Tianyingtai

Origin

China

HS Code

73066100

Production Capacity

30000tons/Month

Key features

Wide Size Range: Outer diameter 15x15 to 400x400mm with thickness 0.5-12mm available.

Customizable Dimensions: Length and size can be adjusted according to customer requirements.

Multiple Material Options: Available in Q195, Q215, Q235, Q345, and Q195-Q235 grades.

High Zinc Coating: Pre-galvanized 60-150g/m2 or Hot-dip galvanized over 200g/m2.

OEM and Custom Design: OEM services and special designs available based on specific needs.

ISO 9001 Certified: All production processes strictly follow ISO 9001-2008 standards.

Free Sample Available: Customers can request free samples for quality verification.

Third-Party Inspection: Accepts inspections from SGS, BV, and other third-party agencies.

Company profile

Tianjin Tianyingtai Steel Pipe Co., Ltd.

Tianjin, China

Business Type: Manufacturer/Factory, Trading CompanyAverage Response Time: ≤5.27h

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.