What payment terms do you accept?

We accept LC, T/T, D/P, PayPal, and Western Union.

What certifications does the manufacturer hold?

The company is certified under ISO45001:2018 and ISO14001.

Is the galvanized coating durable?

Yes, the hot-dip galvanized coating provides rust resistance for at least 25 years.

Square and Rectangular Steel Pipes ERW Tubes

Name: Square and Rectangular Steel Pipes ERW Tubes
Brand: Tianjin RuiTong Iron & Steel Co., LTD.
SKU: 1990873852

Tianjin, ChinaTianjin RuiTong Iron & Steel Co., LTD.

US$553.00-655.00

1 Ton

Sample price:US$0.00/piece.Request sample

Product profile

Customization

Available

After-sales Service

3months

Warranty

1 Years

Model NO.

10*10-40*40mm

Type

Welded

Technique

ERW

Material

Carbon Steel

Surface Treatment

Galvanized

Usage

Pipeline Transport, Boiler Pipe, Hydraulic/Automobile Pipe, Oil/Gas Drilling, Chemical Industry, Mining, Construction & Decoration, Special Purpose, Steel Pipe a,B,Grade250,Grade350

Section Shape

Square

Standard

ASTM,En,DIN,ANSI,BS

Length

12m, 6m, 5.8m, 1-12m Random Lengths

W.T

1.0-17mm

Main Use

Scaffolding Pipe, Structure Pipe, Fence/Door Pipe,

Surface

Oil, Black, Varnish, Hot Dipped Galvanized,Pre Ga

Transport Package

with Plastic Tarpaulin

Specification

21.3-609.6mm

Trademark

Ruitong

Origin

China

HS Code

73063090

Production Capacity

300000 Per Year

Key features

Durable Galvanized Coating: Hot-dip galvanized surface provides rust resistance for at least 25 years.

High Strength and Toughness: Good ductility allows cold punching, rolling, and bending without coating damage.

Versatile Customization: Offers full customization from samples, designs, and flexible minor adjustments.

Wide Application Range: Suitable for scaffolding, structure, fencing, oil/gas drilling, and construction.

OEM and ODM Services: Manufacturer supports both OEM and ODM services with 10 R&D engineers.

Flexible Length Options: Available in 12m, 6m, 5.8m, or 1-12m random lengths to meet needs.

Fast Lead Time: Peak and off-peak season lead time within 15 workdays or one month.

ISO Certified Quality: Certified under ISO45001:2018 and ISO14001 with 10 QA/QC inspectors.

Company profile

Importers and ExportersHigh Repeat Buyers ChoiceYears of Export ExperienceExperienced Team

Tianjin RuiTong Iron & Steel Co., LTD.

Tianjin, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 16 years CertifiedNearest Port: Tianjin PortAverage Response Time: ≤15h

AI-Powered supplier vetting

SummaryThe supplier is a combined manufacturing and trading entity whose stated business includes metal-material manufacturing, wire-rope production, metal-material sales, and import/export activities. It reports broad customization, ODM and OEM capabilities, with 16 years of export experience. Quality and service processes are documented, including finished-product inspection, complaint handling, corrective actions, and supplier assessment procedures. It has inventory capacity and accepts multiple payment and quotation terms, but lacks overseas warehouses, branches, agents, showrooms, and offline trade-show experience. Financial information is represented only by reporting years, without assessable financial performance data. The supplier reports no available SDK and no established AI-based sustainable-development management capability. A significant operational concern is the absence of a valid manufacturing contract with associated subcontractors.

Supplier typeThe supplier is identified as a combined company, with business activities covering metal-material manufacturing, wire-rope products, metal-material sales, import/export, and technology import/export. Its combined facility is described as a spiral steel pipe production line, indicating a manufacturing-oriented operating profile.

After-Sales capabilityThe supplier has documented procedures and records for customer complaints and corrective/preventive actions, supporting a structured service-response process. However, it has no overseas agents or branches, no overseas warehouse, and no overseas showroom, which limits evidence of localized after-sales coverage.

R&D capabilityThe supplier reports new products during the past year, ODM services, and broad R&D-related customization capabilities. However, it has no available SDK and reports no established AI model for big-data processing and decision-enabled management, so innovation evidence is positive but incomplete.

Production capacityThe supplier operates a spiral steel pipe production line, has inventory capacity, and reports documented finished-product inspection and supplier-management procedures. It also states an average lead time of within 15 working days to one month, but the lack of a valid contract with associated subcontractors is a documented production-governance risk.

Customization capabilityThe supplier explicitly offers customization from samples, customization from designs, full customization, minor customization, and flexible customization. It also reports ODM capability, providing direct evidence of broad product-development and customization support.

Client casesThe supplier states that it provides OEM services for well-known brands and identifies its own-brand quality-control capability as RuiTong, with a stated quantity of two. These entries provide some customer or brand-related evidence, but no customer names, project details, volumes, or verifiable case descriptions are supplied.