Q235 Galvanized Steel Pipe
Q235 galvanized steel pipes engineered for high-durability structural municipal engineering, heavy-load agricultural greenhouse scaffolding, underground fluid conduit framing, and architectural fencing systems. We guarantee exceptional structural load capacity, uniform multi-layer zinc coverage, and exact linear sizing tolerances under our direct [2-Hour Rapid Quote] mill program.
Tired of slow supplier responses while your critical project bidding deadline closes in? Terrified of receiving brittle structural tubes that crack during welding or fail on-site micron inspections due to peeling zinc layers? Eliminate cross-border purchasing risks and secure your mill-verified testing logs immediately.
PRODUCT DETAILS
Q235 Structural Galvanized Pipe Three-Standard Cross Matrix
| Chinese Standard Material (GB/T 3091) | American Equivalent (ASTM A53 / A500) | European Equivalent (EN 10219 / 10255) | Japanese Equivalent (JIS G3444 / G3452) | Zinc Coating Density Options |
|---|---|---|---|---|
| Q235A Commercial | ASTM A53 Grade A | EN 10255 Light Class L | JIS G3452 SGP Light | Pre-GI: 60g/m² – 120g/m² |
| Q235B / Q235C Engineering | ASTM A53 Gr. B / A500 Gr. B | EN 10219 S235JRH / S275J0H | JIS G3444 STK400 Standard | HDG: 220g/m² – 500g/m² (Heavy Duty) |
| Q235D Low Temp Structural | ASTM Specialized Grade | EN 10219 S275NH | JIS Specialized Section | Premium HDG: Up to 550g/m² |
Technical QA/QC Verification
• Complete Structural Traceability: Shipments are systematically accompanied by original EN 10204 3.1 Mill Test Certificates (MTC). These records provide un-altered tracking data including chemical composition, yield strength, tensile ratios, and elongation logs. Fully certified for independent clearing inspection by SGS, Lloyd’s Register, or Bureau Veritas.
• Capital Security Guarantee: We eliminate cross-border financial friction completely by offering security-backed infrastructure and heavy industrial procurement contracts under 100% Irrevocable Letters of Credit (L/C) at sight financial structures.
Anti-Rust Packaging & Ocean Logistics
• Fortified Marine Stowage Controls: Structural bundles are strategically anchored within sea containers or bulk vessel holds utilizing thick timber wood blocks, structural cross-bracing chocks, and industrial nylon lashing cables to prevent metal-on-metal sliding or structural ovality warping during turbulent ocean transit.
• Complimentary Extended Port Demurrage: SXY Steel Group directly provides an automated allocation of 14 to 21 days of free container and vessel demurrage directly at your targeted port of discharge, providing your regional logistical brokers with a wider operational window for customs clearance.
Q235 galvanized pipe is a hot-rolled or cold-formed steel pipe, made from Q235 grade steel (minimum yield strength of 235 MPa), which is subsequently hot-dip galvanized to provide a protective zinc coating against corrosion. It is widely used in construction, fencing, water/gas conveyance, and structural applications.
| Category | Details |
|---|---|
| Product Name | Q235 Galvanized Steel Pipe (Hot-Dip Galvanized) |
| Length | 1-12m or as required |
| Diameter | 10.3mm to 1219mm or as required |
| Standard | GB/T 3091, ASTM A53, EN 10240, JIS G3442 |
| Technique | Hot-Dip Galvanized |
| Surface Treatment | As-galvanized spangle surface. Clean, blasting, and painting are available upon request. |
| Thickness tolerance | According to GB/T 3091-2015, the wall thickness tolerance depends on diameter, nominal thickness, and manufacturing process. For welded pipes with D ≤ 48.3mm, the common tolerance is ±10% of the nominal wall thickness (min. ±0.2mm). Please confirm based on specific order specifications. |
| Zinc Coating Mass | ≥ 275 g/m² (Typical average, meeting GB/T 3091 for general purpose). Other coating classes (e.g., ≥ 350 g/m²) are available upon request. |
| Export packing | Waterproof paper and steel strip packed. Standard seaworthy export packing suitable for all modes of transport, or as required. |
Hot-dip galvanized steel pipes are widely used in the manufacturing industries of construction, machinery, coal mining, chemical industry, electric power, railway vehicles, automobile industry, highways, bridges, containers, sports facilities, agricultural machinery, petroleum machinery, prospecting machinery, shed construction, etc.
Galvanized steel pipe has a welded steel pipe with a hot dip or electro galvanized layer on the surface. Galvanization can increase the corrosion resistance of steel pipes and prolong the service life. Galvanized steel pipe has a wide range of uses, in addition to being used as a pipeline for general low pressure fluids such as water, gas and oil, it is also used as an oil well pipe and oil pipeline in the petroleum industry, especially in the marine oil fields, as an oil heater, condensation cooler and coal distillation and oil washing exchanger pipe for chemical coking equipment, and as a support frame pipe for trestle piles and mining pits, etc.
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 Project Engineering Layout Audit & Structural Pipe Nesting Optimization Assessment
Managing a commercial structural framework layout, municipal conduit network, agricultural framework tender, or civil engineering infrastructure drawing sheet? Upload your custom length cut configurations, specific micron schedules, steel grades, or complete Bill of Materials (BOM) files below. SXY Steel Group’s specialized technical desk will conduct an optimization yield audit to eliminate scrap overhead and minimize procurement budgets.
