What payment terms do you accept?

We accept various payment methods including LC, T/T, D/P, PayPal, Western Union, and small-amount payments. Specific terms can be negotiated based on the order value and customer relationship.

What are the common applications for these galvanized square tubes?

They are widely used in construction (structural frames, scaffolding), solar energy (mounting structures), agriculture (greenhouses), fencing, automotive components, and industrial machinery frames due to their high strength and corrosion resistance.

Durable Q355b Gi Pipe for Construction and Industrial Use

Name: Durable Q355b Gi Pipe for Construction and Industrial Use
Brand: Shandong Kanghong Machinery Manufacturing Co., Ltd
SKU: 2151941782

Shandong, ChinaShandong Kanghong Machinery Manufacturing Co., Ltd

US$500.00-706.00

5 Tons

Product profile

Customization

Available

Type

Welded

Technique

ERW

Model NO.

Q235B Q355B ASTM A500

Material

Carbon Steel

Surface Treatment

Hot DIP Galvanized

Usage

Pipeline Transport, Boiler Pipe, Hydraulic/Automobile Pipe, Food/Beverage/Dairy Products, Machinery Industry, Construction & Decoration, Special Purpose

Section Shape

Square

Standard

ASTM, GB, JIS, En

Grade

Q235B, Q355b, ASTM A500

Outer Dimension

20X20mm - 400X400mm

Wall Thickness

1.0mm - 12.0mm

Length

6m, 12m, as Customer's Request

Zinc Coating Weight

≥80G/M²

Zinc Coating Thickness

≥45μm

Yield Strength

≥235MPa

Tensile Strength

Tensile Strength 370-500MPa

Elongation

≥26%

Processing Service

Cutting, Drilling, Bending

Size Tolerance

±0.5mm

MOQ

5 Tons

Delivery Time

7-15 Days

Certification

ISO9001, SGS, BV

Transport Package

Packed in Bundles

Trademark

KANGHONG

Origin

Shandong, China

Production Capacity

500000 Ton

Key features

Wide Size Customization: Outer dimensions from 15x15mm to 600x600mm with custom cut-to-length and wall thickness options.

International Standard Compliance: Meets ASTM A500, EN 10219, JIS G3466, and GB/T 6728 standards for global structural applications.

Versatile Processing Services: Available with cutting, drilling, bending, punching, and welding services to meet specific fabrication needs.

Certified Quality Assurance: ISO 9001 certified manufacturing with SGS, BV inspections and Mill Test Certificates (MTC) provided.

Durable Metallurgical Bond: Hot-dip process creates a strong metallurgical bond between zinc and steel, preventing coating peeling.

Multi-Industry Application: Ideal for construction, solar mounting, fencing, agriculture, and industrial machinery frameworks.

Company profile

Importers and ExportersFast DeliveryQuality AssuranceProduction Process Visualization

Shandong Kanghong Machinery Manufacturing Co., Ltd

Shandong, 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: Foreign trade business has just begun CertifiedNearest Port: TianjinAverage Response Time: ≤6.00h

AI-Powered supplier vetting

SummaryThe supplier specializes in the R&D, production, and sales of various steel products with a strong global presence, exporting to over 50 countries. They offer extensive customization and design services, supported by a professional sales and quality control team. However, they lack a written corrective and preventive actions mechanism and have just begun their foreign trade business. Their financial data indicates a recent startup phase with minimal revenue and profit margins.

Supplier typeThe supplier is primarily involved in the R&D, production, and sales of stainless steel, carbon steel, and galvanized steel products, offering metal cutting and processing services.

After-Sales capabilityThe company provides comprehensive after-sales support and has a team committed to efficient trade services, including after-sales support.

R&D capabilityThe supplier has strong R&D capabilities, offering extensive customization and 3D software design services. However, they lack SDK availability.

Production capacityThe supplier has production facilities equipped with complete supporting facilities for stable production and supply of steel products.

Customization capabilityThe supplier offers a wide range of customization options, including full and minor customization, and customization from samples and designs.

Client casesThe supplier has exported products to more than 50 countries, suggesting a well-established global customer base.

Product Q&A

Q:What are the available size ranges for the square steel pipes?

Outer dimensions range from 15x15mm to 600x600mm. Wall thicknesses vary from 0.6mm to 30mm. Standard lengths include 5.8m, 6.0m, 11.8m, and 12.0m, with custom cut-to-length options available.

Q:What certifications do your products comply with?

Our products comply with international standards including ASTM A500, EN 10219, JIS G3466, AS/NZS 1163, and GB/T 6728. We are ISO 9001 certified and provide Mill Test Certificates (MTC) along with third-party inspection reports from SGS or BV.

Q:What is the Minimum Order Quantity (MOQ)?

The Minimum Order Quantity is 5 tons for standard orders. However, please note that the company profile also lists a general MOQ of 27 tons for certain commercial terms; please confirm with sales for specific project requirements.

Q:Can you provide OEM/ODM services and custom sizes?

Yes, we offer full customization including sizes, grades, and surface treatments. We support OEM/ODM services, allowing customization from samples or designs, including specific wall thicknesses and zinc coating weights.

Q:What is the typical delivery time for an order?

The standard delivery time is 7-15 days. During peak seasons, lead time may extend to one month, while off-season lead time is within 15 workdays.