What standards do your products comply with?

Products comply with ASTM A500, EN 10219, JIS G3466, AS/NZS 1163, and GB/T 6728.

What is the zinc coating thickness for hot-dip galvanized tubes?

The zinc coating thickness is 45-100 microns, with an average of 65-85 microns.

What is the lead time for production?

The average lead time is within 15 workdays in the off-season and one month during the peak season.

Premium Galvanized Square Tube, Q355b, 30X30mm for Construction

Name: Premium Galvanized Square Tube, Q355b, 30X30mm for Construction
Brand: Shandong Kanghong Machinery Manufacturing Co., Ltd
SKU: 2152350922

Shandong, ChinaShandong Kanghong Machinery Manufacturing Co., Ltd

US$460.00-580.00

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

Superior Corrosion Protection: Hot-dip galvanized with 45-100 microns zinc coating for exceptional rust resistance.

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: ISO 9001 certified with CE compliance and third-party inspections by SGS and BV.

Dual Galvanization Options: Choice between Hot-Dip Galvanized (HDG) for harsh environments and Pre-Galvanized for indoor use.

Mill Test Certificates: Full documentation including MTC 3.1/3.2, Certificate of Origin, and chemical analysis.

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: ≤6.02h

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.