Structural S350gd+Z Galvanized Steel Sheet for Highway Guardrail with Z275 Impact

Name: Structural S350gd+Z Galvanized Steel Sheet for Highway Guardrail with Z275 Impact
Brand: CNB NEW MATERIAL (TIANJIN) CO., LTD.
SKU: 2308004705

Tianjin, ChinaCNB NEW MATERIAL (TIANJIN) CO., LTD.

US$480.00-600.00

1 Ton

Sample price:US$0.00/piece.Request sample

Product profile

Customization

Available

After-sales Service

Negotiable

Warranty

10 Years

Model NO.

CNB-GSC

Standard

ASTM, JIS, GB, AISI, DIN, BS

Certification

ISO, RoHS, IBR

Surface Treatment

Galvanized

Technique

Cold Rolled

Application

Boiler Plate

Edge

Mill

Stock

Application for

Livestock Shed, Grain Storage, Traffic Barrier

Inventory

in Stock

Material Grade

Dx51d+Z, SGCC, S250gd+Z, S350gd+Z

Zinc Coating

Z80-Z275 (Double Side)

Transport Package

Export Seaworthy Package

Specification

0.16mm-1.0

Trademark

CNB

Origin

China

Production Capacity

5000 Tons/Momth

Key features

Our Z275 galvanized steel coil provides the thick zinc coating required for highway safety barriers, ensuring decades of corrosion protection even in coastal and de-icing salt environments.

DX51D+Z galvanized steel sheet with Z180 to Z275 coating resists the ammonia, humidity, and acidic conditions inside livestock barns and grain silos.

Our galvanized steel coil with consistent mechanical properties and uniform spangle finish is optimized for high-speed roll forming of garage doors, rainwater gutters, and downpipes.

Company profile

Importers and ExportersHigh Repeat Buyers ChoiceCooperated with Fortune 500Multi-language Pioneer

CNB NEW MATERIAL (TIANJIN) CO., LTD.

Tianjin, China

CertifiedBusiness Type: Trading Company CertifiedCustomization Options: Customization from Samples, Customization from Designs CertifiedExport Year: 2 years CertifiedNearest Port: Tianjin PortAverage Response Time: ≤2.18h CertifiedTerms of Payment: LC, T/T, PayPal, etc.

AI-Powered supplier vetting

SummaryCNB NEW MATERIAL (TIANJIN) CO., LTD. is a China-based trading company established in 2023 with three employees. It reports quality assurance, raw-material traceability, written inspection instructions, in-stock capability, and customization from samples or designs. The company states that 90% of sales are exports and cites international companies as fixed raw-material customers, although no specific case details are provided. Service reach is limited: it reports no overseas agents or branches, overseas warehouses, overseas showroom, offline trade-show participation, or overseas service countries. R&D evidence is weak, with no new product information in the past year, no ODM, no SDK, and no branded OEM capability. Financial information provided shows zero operating revenue and zero profit-related figures for the stated periods, requiring caution. Outsourcing procedures, manufacturing-capacity contracts, corrective-action records, complaint-handling records, and supplier-assessment records are incomplete or...

Financial creditThe submitted financial slices report zero operating revenue and zero profit-related figures for the stated periods, while current ratios are also reported as zero. These figures do not demonstrate financial strength and indicate a material need for verification before relying on the supplier’s financial capacity.

R&D capabilityThe supplier reports no new product information during the past year, no ODM service, and no available SDK. Although it can customize from samples and designs, the provided evidence does not support strong independent R&D or innovation capability.

Customization capabilityCustomization from samples and customization from designs are explicitly available through both design services and R&D-related services. This supports the supplier’s ability to handle customer-specific requirements, although no evidence is provided regarding production scale or technical complexity.

Client casesThe supplier states that it has become a fixed raw-material supplier to Panasonic, Toyota, Honda, IKEA, and Komatsu, and reports that 90% of total sales are exports. These named customer claims provide positive case evidence, but the slices do not include order scope, duration, product details, or independently verifiable references.

Product Q&A

Q:What zinc coating weight is recommended for a livestock shed roof?

For livestock shed roofing, we recommend Z180 to Z275 galvanized steel coil. The ammonia from animal waste and high humidity inside the shed are highly corrosive to standard roofing materials. A heavy zinc coating combined with the sacrificial protection of galvanized steel ensures long service life without red rust.

Q:Can your galvanized steel be roll-formed into highway guardrail profiles?

Yes, our S350GD+Z structural galvanized steel coil with Z275 coating is specifically produced for highway guardrail roll forming. The high yield strength (>350 MPa) meets the impact resistance requirements of AASHTO and EN 1317 guardrail standards, while the thick zinc coating provides corrosion protection.

Q:Is zero spangle galvanized steel necessary for roller shutter doors, or is regular spangle acceptable?

For roller shutter doors, regular spangle is acceptable and more economical for industrial applications. However, for commercial and residential garage doors where appearance matters, small spangle or zero spangle galvanized steel with a smoother surface is preferred, especially if the door will be powder coated or painted.