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PRODUCT DESCRIPTION
If your project lives outside—salt-tinged air on a waterfront job, fertilizer mist in a greenhouse, or daily washdowns in a food yard—painted carbon steel gives up fast. This galvanized tubing steps in with a dense zinc layer that takes the hit first. The surface shows that familiar crystalline spangle and a slightly grainy handfeel; you can hear the clean ring when the pipe is tapped. Underneath, ERW seams are tight and consistent to keep alignment true during fab. The result is a pipe that shrugs off rain, splash, and abrasion, holds torque for fasteners, and keeps its clean, silvery look far longer than black pipe—at a fraction of the stainless premium. For contractors, that means fewer call-backs, simpler maintenance plans, and a lower total cost of ownership across the life of the asset.
| Item | Value |
|---|---|
| Material Grades | Q235, Q345, S235JR, S275JR, STK400, STK500, S355JR, Gr.B–D |
| Process / Type | Hot-dip galvanized, ERW, Round |
| OD Range | 21.3–600 mm (½"–24") |
| Wall Thickness | 0.6–12.0 mm |
| Standard Lengths | 10–6000 mm (typical 6 m / 21 ft); custom cut available |
| Zinc Coating | 40–275 g/m² |
| Standards | ASTM A53 Sch 40/80/STD, EN10255, EN10219, BS1387, JIS G3444, GB/T3091 |
| Ends | Plain End; Threaded & Coupled upon request |
| MOQ | 5 tons |
| Payment | T/T, L/C, Western Union, Paypal |
| Typical Uses | Pipeline transport, boiler, oil & gas, machinery, chemical, mining, construction, decoration |
Corrosion defense you can measure: specified zinc mass up to 275 g/m² forms a sacrificial barrier that resists red rust in wet or salt-spray-prone sites.
Structural confidence: ERW weld integrity supports fixtures, gates, rails, catwalks, and temporary shoring without “soft” joints or edge chipping during fit-up.
Fabrication-ready: consistent OD/WT tolerances simplify jigs; plain-end stock takes saws and band cutters cleanly. Threading, beveling, and punching services shorten site time.
Compliant by design: built around mainstream pipe/tube standards (ASTM/EN/BS/JIS/GB) to clear submittals and inspection faster, with mill test reports available.
Lower TCO vs. paint and many alloys: long service intervals, easy touch-up at cut ends with cold-galv spray, and no special fasteners needed.
Material & Geometry: ASTM A53 (Schedule 40/80), EN10255/BS1387 for traditional pipe geometry; EN10219 for structural hollow sections where applicable.
Galvanizing: Hot-dip zinc to ASTM A123/A153 equivalent performance; coating verification via thickness or mass tests on request.
Traceability: Heat-numbered lots, MTC (EN 10204 3.1) available.
Jurisdictional notes: For potable water systems, verify local code acceptance. Many municipalities discourage or prohibit new galvanized distribution lines; our product is widely used for non-potable and structural service.
Site & perimeter: fence posts, handrails, barriers, bollards, traffic and signage structures.
Agricultural/industrial: greenhouse frames, wash-down bays, livestock enclosures, light racking.
Utilities & civil: cable trays, guard rails, scaffolding braces, temporary works, drainage and low-pressure non-potable water.
Coastal & marine-adjacent: docks, catwalks, and parking structures where salt spray shortens coating life on painted steel.
Retrofit: swap-outs for corroded black pipe where stainless is over-specced and budget-sensitive timelines matter.
Cutting to length (metric or imperial), beveling for weld-up, threading & couplings (NPT/BSP), hole punching for brackets, light bending where wall allows.
Secondary galvanizing (re-dip) for complex fabrications; cut-end remediation with cold-galv touch-up as standard practice.
Kitting & labeling by zone or drawing; palletization for staged installs; consolidated containers for multi-site programs.
Incoming coil inspection, weld seam ultrasonic checks, zinc-layer mass/thickness sampling by lot, adhesion tests, and accelerated corrosion spot-checks.
Dimensional audits by OD/WT/straightness; visual for spangle consistency and runout.
Mill Test Certificates provided with grade, heat, and coating results; third-party inspection welcome.
Hexagonal steel-strap bundles with plastic end caps; water-resistant interleaf on export orders; optional shrink-wrap.
Standard export pallets or bare-bundle loading for container optimization; barcode labels with PO, heat, and piece count.
Typical lead time 7–15 days ex-works for stock sizes; custom gauges and OD subject to rolling calendar. Consolidated LCL/FCL available.
Choosing a schedule/wall: for structural frames and fencing, Sch 40 or equivalent wall generally balances weight and rigidity; step up for high-impact or long spans.
Cutting & joining: maintain adequate ventilation when burning or welding galvanized; clean back to bright metal at joints and re-seal with a zinc-rich repair coating.
After install: inspect cut ends and field holes; apply cold-galv as needed. In coastal exposure, plan periodic rinse-downs to extend aesthetic life.
Standards breadth: one vendor for A53/EN10255/BS1387/JIS/GB—simplifies multinational sourcing and submittals.
Configured to your build: real cut-to-length, threading, punching, and kitting to match your drawings and reduce on-site labor.
Documentation first: fast MTC turnaround, coating data, and inspection reports ready for QA packs.
Capacity & continuity: ample stock plus flexible MOQ from 5 tons with predictable lead times, backed by strict process control from coil to coating.
Post-sale pragmatism: technical support on weld prep, end-treatment, and field touch-ups—practical advice that saves hours, not just theory.
Use is application- and code-dependent. Many jurisdictions restrict galvanized pipe for new potable water distribution due to corrosion and water-quality considerations. It is widely accepted for non-potable and structural uses. Always check local code and project specs.
Yes. NPT or BSP threads with matching couplings and end caps are available. Thread tolerances meet the relevant standard for the base spec.
For inland projects with modest exposure, 40–90 g/m² typically suffices. Coastal, chemical, or constant-wet environments benefit from higher zinc mass (e.g., 180–275 g/m²) or a secondary re-dip after fabrication.
Full MTC is standard. Third-party inspections can be arranged prior to shipment with your nominated agency.
After cutting or drilling, clean the area to bare metal and apply a zinc-rich repair coating per the product data sheet to restore sacrificial protection.
Zhongjing Steel Group (Guangdong) Co.,Ltd. specializes in the production of cold-rolled/hot-rolled coils, carbon steel pipes, bars, and PPGI materials. It is a modern enterprise integrating carbon steel production, processing, and trade. It is a Chinese iron and steel enterprise group.
