Q235B Q355b Hot DIP Galvanized Hollow Section Square Rectangular Steel Pipe for Construction Municipal Projects

Name: Q235B Q355b Hot DIP Galvanized Hollow Section Square Rectangular Steel Pipe for Construction Municipal Projects
Brand: Jiangsu Changchen Materials Co., Ltd.
SKU: 2001788351

Jiangsu, ChinaJiangsu Changchen Materials Co., Ltd.

US$645.00

1-9 Tons

US$620.00

10-19 Tons

US$600.00

20+ Tons

Product profile

Customization

Available

After-sales Service

Offer Technical Support & Accept Pre-Shipment

Warranty

Quality Guarantee Documents Are Available

Model NO.

Q235B-Q355B-Galvanized Square Rectangular Tube

Type

Welded

Technique

ERW

Material

Carbon Steel Q235B,Q355b

Surface Treatment

Hot-DIP Galvanized

Usage

Machinery Industry, Construction & Decoration, Suitable for Greenhouse Frame, Fence

Section Shape

Square, Rectangular

Zinc Coating Weight

80-275G/M² Hot-DIP Galvanized Coating for Corrosio

Execution Standard

Meets ASTM A500, GB/T6728 and En 10219 Standards

Processing Service

Support Custom Cut-to-Length for Various Demands

Transport Package

Steel-Strapped Seaworthy Bundles

Specification

Square: 10-200mm; Rect: 20-300mm; WT: 1.0-8.0mm

Trademark

CHANGCHENG

Origin

Jiangsu, China

HS Code

7306610000

Production Capacity

300000tons/Year

Key features

Custom Cut-to-Length: Available lengths 1-12m with custom cutting service for specific demands.

Wide Size Range: Square 10-200mm, Rectangular 20-300mm, Wall thickness 1.0-8.0mm.

Multiple Material Grades: Available in Q235B and Q355B carbon steel for various strength needs.

Third-Party Inspection: SGS and BV inspections accepted to ensure import compliance.

Mill Test Certificate: Official MTC provided with shipping documents for every batch.

Seaworthy Export Packing: Steel-strapped bundles with anti-rust paper and waterproof film.

Flexible Trade Terms: FOB, CFR, CIF, DAP, and EXW terms available for global buyers.

Company profile

Fast DeliveryManagement CertificationR&D CapabilitiesQA/QC Inspectors

Jiangsu Changchen Materials Co., Ltd.

Jiangsu, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs CertifiedExport Year: 1 Year CertifiedNearest Port: Shanghai PortAverage Response Time: ≤2.40h

AI-Powered supplier vetting

SummaryChangchen operates in metal materials, special steel, forgings, powder metallurgy, metal processing machinery, and cutting services. It reports customization from samples and designs, ODM availability, recent new-product development, CAD/PS-related R&D capability, and documented R&D inputs, outputs, reviews, verification, and validation. Production-related evidence includes valid contracts with associated subcontractors, inventory capability, raw-material traceability, and 100% finished-product inspection; however, only one quality inspector is reported. The supplier states that products can meet several national and international standards, but no specific certifications are identified. Overseas support is limited: there are no overseas agents or branches, warehouses, showrooms, or stated overseas service countries. Lead time is reported as within 15 working days in both peak and off-season. Financial information is insufficient for a reliable assessment, and no customer cases are provided.

Supplier typeThe supplier’s stated business scope covers sales of metal materials and products, special steel, forgings, powder metallurgy products, recycled resources, metal-processing machinery, and metal cutting services. This supports classification as a metal-material and metal-processing supplier, although the slices do not establish a more specific legal or manufacturing classification.

R&D capabilityThe supplier reports new products during the past year, R&D responsibilities covering new-product development, design drawings, production technical support, and customer specifications, plus CAD and PS software capability. It also has auditable R&D design-input, output, review, verification, and validation documentation, although no SDK is available.

Production capacityProduction-related evidence includes sawing and cutting equipment, metal cutting and processing activities, inventory capability, valid manufacturing contracts with associated subcontractors, raw-material traceability, and 100% finished-product inspection. The reported quality-control staffing is one inspector, while supplier-management procedures have no records, so capability is supported but operational depth is limited.

Customization capabilityChangchen explicitly provides customization from samples and designs, offers ODM services, and states that customized services can be developed according to customer requirements. Its R&D role includes preparing product specifications for customer approval, providing direct evidence of customer-oriented customization capability.