What certifications does the manufacturer hold?

The manufacturer holds ISO45001:2018 and ISO14001 certifications.

What payment terms are accepted?

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

What is the lead time for production?

The lead time is within 15 workdays or one month, regardless of the season.

Hollow Square Iron Steel Pipe Steel Tube

Name: Hollow Square Iron Steel Pipe Steel Tube
Brand: Tianjin RuiTong Iron & Steel Co., LTD.
SKU: 1990201142

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

US$549.00-695.00

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

Hot Rolled

Material

Carbon Steel

Surface Treatment

Galvanized

Usage

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

Section Shape

Square

Tolerance

+-1-5%

Length

5.8-12m

Surface

Oil,Black ,Varnish,Hot Dipped Galvanized

Standard

ASTM A500 ,GB/T3094

Grade

a,B,Grade250,Grade350

Transport Package

with Plastic Tarpaulin

Specification

20x20mm-400x400mm

Trademark

Ruitong

Origin

China

HS Code

73063090

Production Capacity

300000

Key features

Hot Dipped Galvanized: Provides excellent corrosion resistance with strong alloy layer firmly attached to steel base.

OEM and ODM Services: Full customization, minor customization, and flexible customization available from samples or designs.

Versatile Applications: Suitable for construction, machinery, shipbuilding, automotive, oil/gas drilling, and chemical industries.

High Strength and Toughness: Hot galvanized square tube offers good ductility, welding performance, and can be cold-rolled or bent.

Flexible Length Options: Available in lengths ranging from 5.8 meters to 12 meters to meet specific project needs.

Multiple Surface Treatments: Options include oil, black, varnish, and hot dipped galvanized finishes.

ISO Certified Manufacturer: Factory certified with ISO45001:2018 and ISO14001 for quality and environmental management.

Low Minimum Order Quantity: Accepts orders starting from just 1 unit, ideal for small batch purchases.

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: ≤18h

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.