Product Overview
| Item | Detailed Description |
| Product Name | Thin Wall ERW Round Steel Pipe / Light Construction Round Steel Pipe |
| Product Definition | It is a high-frequency Electric Resistance Welding (ERW) carbon steel pipe with thin wall thickness and lightweight feature, specially optimized for light-duty construction and general structural applications. Manufactured by curling steel strips into cylindrical shape and precise longitudinal seam welding, featuring uniform wall thickness, smooth surface and stable structural performance. |
| Core Characteristics | Light weight, high dimensional accuracy, excellent weld tightness, easy cutting and installation, cost-effective, stable mechanical property, low pressure resistance suitability |
| Main Usage | Widely used in building light structure, construction scaffolding, factory frame, fence structure, municipal engineering, low-pressure fluid conveying and general engineering support |
Standard & Material Grade
| Standard | Available Material Grades | Applicable Scenarios |
| ASTM A53 Gr.A / Gr.B | A53 Grade A, A53 Grade B | General construction structure, low-pressure pipeline, conventional building support |
| ASTM A500 Gr.B / Gr.C | A500 Grade B, A500 Grade C | Building frame, scaffolding, municipal structural engineering |
| EN 10217 / EN 10025 | S235JR, S275JR, S355JR | European standard construction projects, outdoor structural facilities |
| GB/T 3091 | Q235B, Q355B | Civil construction, industrial plant light steel structure |
Technical Specification
| Parameter Item | Specification Range |
| Outer Diameter (OD) | 21.3mm - 609.6mm (1/2 inch - 24 inch), customizable |
| Thin Wall Thickness | 1.8mm - 4.0mm (core thin-wall range for light construction), Schedule 20 / Schedule 30 |
| Pipe Length | 6m / 9m / 12m standard length, 1m-12m customized cutting |
| Dimensional Tolerance | Outer diameter: ±1%; Wall thickness: ±0.15mm; Straightness: ≤1.5mm/m |
| Working Pressure | ≤1.0MPa, suitable for light-duty low-pressure working environment |
| Surface Condition | Black steel / Pickled / Oiled / Hot-dip Galvanized / Pre-galvanized |
| End Treatment | Plain end / Beveled end / Threaded end with cap protection |
Production Technology & Craft Advantage
| Production Process | Technical Advantages |
| High-Frequency ERW Welding | Adopts advanced high-frequency resistance welding technology, uniform welding seam, no crack and leakage, high bonding strength, ensures overall structural stability of thin-wall pipe |
| Precision Cold Forming | Steel strip cold-rolled forming, regular round pipe shape, uniform thin wall thickness, avoids local thickness deviation, improves pipe load balance |
| Full Process Quality Inspection | 100% online weld inspection, hydrostatic pressure test, ultrasonic testing and dimensional inspection, eliminate defective products, ensure stable quality of each batch |
| Fine Surface Treatment | Smooth inner and outer surface, no burr, no oxidation slag, reduces construction resistance, convenient for painting, welding and secondary processing |
Product Advantages
| Advantage Dimension | Detailed Superiority |
| Lightweight & Cost Saving | Thin-wall lightweight design reduces overall engineering weight, saves raw material cost and transportation cost, lowers construction load and installation difficulty, greatly improves construction efficiency |
| High Precision & Easy Processing | Strict dimensional tolerance control, regular pipe shape, easy to cut, bend, weld and assemble, perfectly matches various light construction design requirements |
| Corrosion & Wear Resistance | Optional galvanized and anti-rust oil treatment, effectively resists moisture oxidation and atmospheric corrosion, extends service life in outdoor and humid construction environments |
| Stable Structural Performance | Uniform stress distribution, good plasticity and toughness, strong compression and impact resistance, stable support performance for light building structures |
| Customization & Wide Compatibility | Supports customized diameter, wall thickness, length and surface treatment, compatible with global construction standards, meets diverse project demands |
| Factory Direct Supply | No middleman markup, sufficient inventory, fast delivery, stable batch quality, provides one-stop OEM & ODM service |
Application
| Application Industry | Specific Application Scenarios |
| Building Construction | Light steel structure frame, building interior support, ceiling keel, temporary construction support |
| Construction Scaffolding | Light-duty scaffolding pipe, construction platform support, safety protection frame |
| Municipal Engineering | Urban fence, guardrail support, municipal light-duty support structure, landscape engineering frame |
| Industrial Factory | Workshop light steel frame, equipment support frame, factory ventilation pipeline bracket |
| Low-pressure Fluid Conveying | Civil water pipeline, ventilation duct, general low-pressure liquid and gas conveying pipeline |
| Other Engineering Fields | Warehouse shelf support, agricultural greenhouse frame, temporary engineering facilities |
Quality Inspection & Certification
| Inspection Item | Inspection Standard & Method |
| Chemical Composition Test | Complies with ASTM, EN and GB standard requirements, raw material component detection |
| Mechanical Property Test | Tensile strength, yield strength, elongation test, ensure structural stability |
| Hydrostatic Pressure Test | No leakage and no deformation under rated working pressure |
| Weld Seam Inspection | Ultrasonic nondestructive testing, ensure welding seam integrity |
| Dimensional Precision Inspection | Full-size sampling inspection, strictly control tolerance range |
| Certification Support | ISO9001 quality system certification, factory inspection report, third-party testing report available |
Packaging & Shipping & Service
| Item | Detailed Service |
| Packaging Method | Standard seaworthy packing, bundled with steel strips, plastic end caps protected, waterproof woven bag wrapped, avoid damage during long-distance transportation |
| Shipping Port | Tianjin Port, Qingdao Port, Shanghai Port (flexible arrangement) |
| Delivery Time | Standard inventory goods: 3-7 days; Customized goods: 10-20 days |
| Trade Terms | FOB, CFR, CIF, EXW, DDP (customizable) |
| After-sales Service | 24-hour online consultation, product quality guarantee, support return and exchange for quality problems, provide technical installation guidance |
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