What is the warranty or quality guarantee?

The company provides a five-promise guarantee including strict quality control through three levels, 24-hour online service, veracity in tolerances, integrity in handling complaints, and long-term relationship building.

What is the minimum order quantity or sample policy?

Free samples are available upon request.

Rectangular Black ERW Steel Pipe Hollow Section ASTM A53

Name: Rectangular Black ERW Steel Pipe Hollow Section ASTM A53
Brand: Tianjin Tianyingtai Steel Pipe Co., Ltd.
SKU: 762196572

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

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

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

Salt Spray Resistance: Passes salt spray test for at least 8 hours without corrosion.

OEM and Custom Design: OEM accepted and special designs available according to customer requirements.

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

Flexible Length Options: Length ranges from 0.3m to 13m, customizable as per your requirement.

Third-Party Inspection: Acceptable for any third-party inspection such as SGS and BV.

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

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: ≤9.47h

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:What are the available size ranges for the rectangular pipe?

The outer diameter ranges from 20-219mm with wall thickness 0.8-12mm. The rectangular size ranges from 10*10mm to 400*400mm with wall thickness 0.8-12mm.

Q:Can the zinc coating be customized?

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

Q:What materials are used for this steel pipe?

The material is Carbon Steel, specifically grades Q195, Q215, Q235, Q345, and Q195-Q235.

Q:Is OEM service available?

Yes, OEM is accepted, and special designs are available according to customer requirements.

Q:What standards does this product comply with?

It complies with standards such as GB/T3091-2001, BS1387-1985, ASTM A53-1996, ASTM A500, and GB/T3094.