Q235 Galvanized Round Steel
Get mill-direct access to premium structural Q235 galvanized round steel bars, fully certified for high-yield architectural welding, automated hardware forging, and structural engineering. We guarantee uniform zinc-layer adhesion during severe mechanical bending operations, tightly calibrated diameter tolerances, and full standard-certified material compliance—backed by a guaranteed 2-Hour Rapid Technical Quote protocol.
Tired of waiting days for simple pricing while your project bidding deadline slips away? Worried about low-grade solid rods that crack during processing, fail local site inspections, and bust your budget? Stop guessing and claim your verified mill-testing records instantly.
PRODUCT DETAILS
Structural Galvanized Round Steel Three-Standard Cross Matrix
| Chinese / Japanese Spec (GB/JIS) | American Standard (ASTM Spec) | European Standard (EN Spec) | Available Diameter Range | Zinc Coating Distribution Profile |
|---|---|---|---|---|
| Q195 / JIS G3302 SGCC | ASTM A653 CS Type A, B, C | EN 10346 DX51D+Z / St01Z | 6mm – 250mm | Light Commercial Bending Quality |
| Q235 / JIS G3302 SGH340 / SGCD1 (Target Grade) | ASTM A653 Structural Grade 33 / FS Type A & B | EN 10346 S220GD+Z / DX52D+Z | 6mm – 300mm / Highly Calibrated h-Tolerances | Z40 – Z275 g/m² Verified Dry Anti-Rust Finish |
| Q355 / JIS G3302 SGH440 | ASTM A653 Structural Grade 50 | EN 10346 S350GD+Z | 8mm – 200mm | Heavy Structural Deep Drawing Load |
Technical QA/QC Verification
• EN 10204 3.1 Material Test Certificates (MTC) & Salt Spray Simulation: All structural commercial orders are accompanied by verified original MTC tracking sheets, itemizing comprehensive heat codes, structural yield values, exact elongation properties, and documented salt spray corrosion resistance logs. Fully aligned to accommodate independent third-party inspection audits from SGS, Bureau Veritas, or Intertek.
• Sovereign Capital Security Framework: To insulate engineering contractors and procurement firms from international currency changes and delivery scheduling anxieties, we execute high-volume productions under 100% Irrevocable Letters of Credit (L/C) at sight financial protocols.
Internal Protection & Ocean Logistics
• Rigid Iron Cradle Palletization & Cross-Timber Bracing: Finished bars are arranged inside heavy iron support frame chassis or solid wooden end-boxes to completely eliminate linear bending or shifting during crane terminal processing. The container lot is heavily cross-braced with continuous steel tension straps and interlocked timber chocks.
• Complimentary 14-21 Days Extended Destination Port Demurrage Buffer: SXY Steel Group proactively secures pre-cleared, extended 14 to 21 days of container free-time demurrage parameters on your ocean Bill of Lading, giving your customs agent an open window to handle processing without incurring costly storage fines.
Q235 Galvanized Round Steel refers to hot-rolled round bars made of Q235 carbon steel (minimum yield strength 235 MPa) that are subsequently hot-dip galvanized to provide a protective zinc coating against corrosion. This process significantly extends the service life of the steel in exposed environments.
It is widely used in applications requiring both structural strength and long-term corrosion resistance, such as in power transmission towers, communication towers, highway guardrails, street light poles, marine components, and various structural fasteners and components in construction and utility industries.
Q235 Hot-Dip Galvanized Round Steel Bar Specifications
| Product name | Q235 Hot-Dip Galvanized Round Steel Bar |
| Diameter | 6-250mm or Customized |
| Length | Customized |
| Advantages | Standard tolerance as hot-rolled round bar (e.g., h11, h12 per ISO). Cold drawn available for tighter tolerances (e.g., h8, h9). |
| Finish Line | Straightening, cutting, surface inspection, anti-mixing control, packaging and marking. |
| Standard | GB/T 699 (for base steel), GB/T 342 (for hot-rolled round bar). Hot-dip galvanizing per relevant coating standards. |
| Surface Treatment | Hot-Dip Galvanized |
| Mechanical Property | Base Steel (Q235): Yield Strength ≥ 235 MPa, Tensile Strength: 370-500 MPa (as-rolled). Note: The stated 570-820 MPa is incorrect for Q235. |
| Bar Processing | Hot-rolled (as base material). Further processing: peeling, turning, straightening, cutting as required. |
| Application | Structural components, bolts, shafts, studs, and fasteners in construction, utility, marine, and industrial sectors requiring corrosion protection. (The listed applications for precision machining are more typical of bright or cold-drawn bars, not standard hot-dip galvanized round bars.) |
Packing and shipping
Our company has passed ISO9001 quality management system certification, Our Mill product with CE/EN10204 / ASTM/Classification society certificate/CASO/BIS etc certificate.All the customers give good appreciation to our products.We are glad to be your good partner.
Application Areas
Steel is widely used in steel structure workshops, bridge frames, main structures of high-rise buildings, and infrastructure construction (such as highways, oil and gas pipelines). Its high strength properties ensure load-bearing stability and seismic performance. In ship manufacturing, steel is used to build hull structures, decks, and internal components. Hot-rolled coils rely on their load-bearing capacity to adapt to harsh environments.
Factory workshop
With a commitment to excellence, innovation, and sustainability, the company has established itself as a trusted partner in the international steel industry.After nearly two decades of relentless endeavour, our client base now spans over 110 countries and regions across Europe, the Middle East, South America, and Southeast Asia.
Free Structural Component Nesting Optimization Analysis & Coated Steel Drawing BOM Audit
Designing construction frameworks, industrial outdoor fencing, custom machinery components, or replying to a high-volume global steel procurement tender? Upload your target rod lengths, precision h-tolerances, cut plans, or raw engineering Bill of Materials (BOM) drawing files below. SXY Steel Group’s engineering department will execute a complete nesting calculation to cut scrap metal losses and safeguard your production budget.
