How long is the delivery time?

Delivery takes 7-15 days upon receipt of the deposit.

What is the outer diameter range?

The outer diameter ranges from 10x10mm to 500x500mm.

ASTM Compliant Square Tube for Construction

Name: Galvanized Rectangular Steel Pipe ERW Hot-Dipped Durable DIN/En/ASTM Compliant Square Tube for Construction
Brand: Kunqian Steel (Jiangsu) Co., Ltd.
SKU: 2269041935

Jiangsu, ChinaKunqian Steel (Jiangsu) Co., Ltd.

US$499.00

1-9 Tons

US$489.00

10-49 Tons

US$479.00

50+ Tons

Sample price:US$1000.00/piece.Request sample

Product profile

Customization

Available

After-sales Service

Specification Customization, Technical Support, an

Warranty

2 Years

Model NO.

Q195 235 345

Type

Welded

Technique

Hot Rolled

Material

Carbon Steel

Surface Treatment

Galvanized

Usage

Pipeline Transport, Boiler Pipe, Hydraulic/Automobile Pipe, Oil/Gas Drilling, Food/Beverage/Dairy Products, Machinery Industry, Chemical Industry, Mining, Construction & Decoration, Special Purpose

Section Shape

Round

Zinc Coating

Z60-Z275

Surface

Regular Spangle / Minimum Spangle / Zero Spangle

Ssurface Treatment

Chromated / Oiled / Passivated

Anti-Rust Treatment

Vci Film + PE Film

Hardness

Soft / Semi-Hard / Full Hard

Transport Package

Seaworthy Export Packing

Specification

Customized

Trademark

KUNQIAN

Origin

China

Production Capacity

10000000

Key features

Durable Galvanized Surface: Hot-dip galvanized process prevents oxidation and corrosion, extending service life.

Wide Size Range: Outer diameter 10x10mm-500x500mm with wall thickness 0.4-16mm available.

Customizable Specifications: Zinc coating, surface finish, and hardness can be customized per customer needs.

Multi-Industry Application: Suitable for construction, machinery, furniture, road guardrails, and decoration.

Fast Delivery: Standard delivery time is 7-15 days after receiving the deposit.

Standard Compliance: Complies with ASTM, JIS, BS, DIN, GB, and other international standards.

Easy Installation: Bright appearance and strong durability make installation simple and practical.

Flexible Processing: Supports welding, punching, cutting, and bending services for specific needs.

Company profile

Importers and ExportersFast DeliveryStandardized quality controlProduct Certification

Kunqian Steel (Jiangsu) Co., Ltd.

Jiangsu, China

CertifiedBusiness Type: Trading Company CertifiedR&D Capacity: ODM Service Available CertifiedCustomization Options: Customization from Samples CertifiedExport Year: 1 Years CertifiedNearest Port: Shanghai PortAverage Response Time: ≤2.25h

AI-Powered supplier vetting

SummaryKunqian Steel (Jiangsu) Co., Ltd. is a China-based trading company established in 2025, with eight employees and two cooperative suppliers. It offers stainless steel plates, rolls, and pipes, and states that it provides ODM/OEM customization, processing services, technical support, and foreign-trade services. Design-input, output, review, verification, and validation documents are reportedly available for audit, while finished products are inspected by sampling under documented instructions. Raw materials are traceable and inventory service is available. However, the provided information records no new products launched in the past year, no SDK, no overseas agents, branches, warehouse, showroom, or offline trade-show participation. Financial information for the stated periods shows zero operating revenue, operating cost, gross profit, and operating profit; these figures materially limit assessment of operating scale and financial credibility. No certification information or customer case details are provided.

Supplier typeThe supplier is identified as a limited trading company based in Wuxi, Jiangsu, China, established on 2025-02-19, with eight employees. Its stated product scope covers stainless steel plates, rolls, and pipes, and it reports two cooperative suppliers.

After-Sales capabilityThe supplier states that it has an efficient foreign-trade service system and provides technical support for production and after-sales service, alongside an after-sales guarantee. However, it has no overseas agents or branches, no overseas warehouse or showroom, and no overseas services are reported in the provided data, limiting evidence of local after-sales coverage.

Financial creditThe supplier was established in 2025 and reports zero operating revenue, operating cost, gross profit, and operating profit for the stated financial periods. These explicit figures provide a material deficiency in demonstrated operating financial performance, although they do not by themselves establish insolvency.

Production capacityThe supplier describes advanced production equipment and processing services including cutting, polishing, wire drawing, sandblasting, and welding. It also reports raw-material traceability, documented and uniformly followed inspection instructions, random finished-product inspection, one quality inspector, inventory capability, and two cooperative suppliers; however, its entity type is trading company and no production capacity figures are provided.

Customization capabilityThe supplier explicitly offers ODM/OEM customization and processing according to customer needs, including size cutting, surface treatment, and welding. Its design capability is listed as customization from samples, and technology engineers confirm customer requirements and design new products, providing direct evidence of customization capability.