What is the surface standard for hot dip galvanized round bar?

Hot dip galvanized following ISO1461 / ASTM A123, no heavy zinc spangle, no bare spots, good anti-corrosion performance for outdoor and earthing projects.

Hot DIP Galvanized Round Bar Q235B Galvanized Steel Solid Round Rod for Construction

Name: Hot DIP Galvanized Round Bar Q235B Galvanized Steel Solid Round Rod for Construction
Brand: Jiangsu Changchen Materials Co., Ltd.
SKU: 2002671311

Jiangsu, ChinaJiangsu Changchen Materials Co., Ltd.

US$570.00

1-4 Tons

US$560.00

5-9 Tons

US$550.00

10+ Tons

Product profile

Customization

Available

Type

Carbon Steel Bar

Standard

ASTM, GB

Model NO.

Q235B

Application

Structural Steel Bar

Alloy

Non-alloy

Zinc Coating Thickness

60-100 Microns

Material Grade

Q235B / A36

Zinc Standard

ISO1461

MOQ

1 Ton

Transport Package

Bundled with Steel Straps, Plastic Cap for Ends

Specification

Diameter: 6~32mm, Length: 6m or custom cut

Trademark

OEM & ODM

Origin

Jiangsu, China

HS Code

7214990000

Production Capacity

50000

Key features

Heavy Zinc Coating: Zinc thickness 60-100 microns ensures outstanding rust-proof and anti-corrosion capacity.

Custom Length Cutting: Supports custom cut lengths like 3.6m, 4m, 5m based on customer drawings.

ISO1461 Standard: Manufactured following ISO1461 and ASTM A123 galvanizing standards.

Mill Test Certificate: Official MTC provided for each batch guaranteeing chemical and mechanical properties.

Wide Diameter Range: Available diameters from 6mm to 32mm for various construction needs.

Third-Party Inspection: Third-party inspection reports are acceptable upon buyer's request.

OEM & ODM Service: Custom brand and design customization options are available.

Hot Rolled Process: Produced via hot rolling process for high-quality carbon steel bars.

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: ≤2.15h

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.

Product Q&A

Q:What is your MOQ?

Our MOQ is 1 metric ton. Mixed sizes within one bundle are acceptable.

Q:Can you provide Mill Test Certificate (MTC)?

Yes, MTC will be supplied for each batch, showing chemical composition and mechanical properties. Third-party inspection is available upon buyer's request.

Q:What is the zinc coating thickness? Can we customize it?

Standard zinc coating is 60~100 microns complying with ISO1461. Custom zinc thickness can be arranged according to your project requirement.

Q:What sizes are available? Can you cut the bar to custom length?

Diameter range:6mm~32mm. Standard length is 6m. Custom cutting service is available, such as 3.6m,4m,5m or other special lengths.

Q:What is your HS code?

HS Code:7214990000