Do you provide mill test certificates?

Yes, all shipments include Mill Test Certificates (MTC) compliant with EN 10204 3.1 or 3.2.

What are the zinc coating thickness requirements?

Hot-dip galvanized tubes have a coating of 45-100 microns, meeting ISO 1461 and ASTM A123 standards.

What are the main applications for these tubes?

They are used in construction, fencing, agriculture, solar mounting, industrial machinery, and automotive OEM.

Premium Galvanized Square Tube ASTM Q355b, Durable Steel

Name: Premium Galvanized Square Tube ASTM Q355b, Durable Steel
Brand: Shandong Kanghong Machinery Manufacturing Co., Ltd
SKU: 2154229892

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 Range: Outer dimensions from 15x15mm to 600x600mm with wall thickness up to 30mm.

Customizable Dimensions: Available in standard lengths or custom cut-to-length sizes upon request.

Multiple Material Grades: Options include ASTM A500, EN 10219, GB/T 6728, and various carbon steel grades.

Comprehensive Processing: Services include cutting, drilling, bending, punching, and welding to meet specific needs.

International Certifications: Manufactured under ISO 9001 with CE certification and third-party inspection support.

Dual Galvanizing Options: Choice between Hot-Dip Galvanizing for harsh environments or Pre-Galvanizing for indoor use.

High Structural Integrity: Produced via high-frequency ERW welding ensuring excellent weldability and formability.

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: ≤5.61h

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.