Can I request a free sample?

Yes, we provide free samples for quality verification before placing a large order.

What payment terms are accepted?

We accept T/T deposit plus B/L copy or L/C at sight for payment.

How is the product quality controlled?

We have a CNAS accredited lab, ISO 9001-2008 certification, and conduct strict first-pass and full inspections during production.

ERW Black Square & Rectangular Steel Pipe

Name: ERW Black Square & Rectangular Steel Pipe
Brand: Tianjin Tianyingtai Steel Pipe Co., Ltd.
SKU: 781686552

Tianjin, ChinaTianjin Tianyingtai Steel Pipe Co., Ltd.

US$500.00-600.00

5 Tons

Sample price:US$0.00/piece.Request sample

Product profile

Customization

Available

Type

Welded

Technique

ERW

Model NO.

tyt

Material

Carbon Steel

Surface Treatment

Oiled

Usage

Pipeline Transport

Section Shape

Rectangular

Standard

GB/T3091-2001, BS1387-1985, ASTM A53-1996

Wt

20*40-350*400mm

Transport Package

Export Package

Specification

Od: 17-219mm, Wt: 0.8-10.0mm

Trademark

Tianyingtai

Origin

Tianjin, China

HS Code

73063090

Production Capacity

300, 000tons/Year

Key features

Customizable Dimensions: Sizes range from 10*10mm to 400*400mm with wall thickness 0.8-12mm, tailored to requirements.

OEM and Custom Design: OEM accepted with special design available according to specific customer requirements.

Strict Quality Control: ISO 9001-2008 certified with CNAS lab accreditation and full production line inspection.

Multiple Surface Treatments: Options include pre-galvanized, hot-dip galvanized, oiled, and painted finishes.

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

International Standards: Complies with ASTM A500, BS 1387, GB/T 3091, and GB/T 3094 standards.

Third-Party Inspection: Supports SGS, BV, and other third-party inspections for quality assurance.

Flexible Payment Terms: Accepts T/T deposit plus B/L copy or L/C at sight for secure transactions.

Company profile

Importers and ExportersIn-stock CapacityCustomization from Samples

Tianjin Tianyingtai Steel Pipe Co., Ltd.

Tianjin, China

Business Type: Manufacturer/Factory, Trading CompanyAverage Response Time: ≤9.55h

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.