Product Brief Overview
ASTM A500 Grade B ERW Structural Steel Pipe is a cold-formed electric resistance welded hollow structural steel tube, including square tube and round tube types. It features stable chemical composition, excellent mechanical properties, high strength and good weldability. Widely applied in building structures, engineering construction, mechanical equipment and infrastructure projects, it is the most popular grade of ASTM A500 structural steel tubing for commercial and industrial structural applications.
Product Standard & Material Chemical Composition
| Item | Standard & Parameter Data |
| Executive Standard | ASTM A500/A500M (Standard Specification for Cold-Formed Welded Carbon Steel Structural Tubing) |
| Steel Grade | Grade B |
| Production Process | ERW (Electric Resistance Welding), Cold Formed |
| Carbon (C) | Max 0.26% |
| Manganese (Mn) | Max 1.35% |
| Phosphorus (P) | Max 0.035% |
| Sulfur (S) | Max 0.035% |
Mechanical Properties
| Tube Type | Yield Strength (Min) | Tensile Strength (Min) | Elongation (Min) |
| Square Tube | 317MPa (46000 psi) | 400MPa (58000 psi) | 23% |
| Round Tube | 290MPa (42000 psi) | 400MPa (58000 psi) | 23% |
Product Size & Specification Range
| Specification Item | Detailed Range |
| Round Tube Outer Diameter | 1/2" - 26" (21.3mm - 660mm) |
| Wall Thickness | 0.055" - 1.602" (1.65mm - 26.97mm) |
| Standard Length | 5.8m, 6m, 12m / Customized Length |
| Shape Type | Square Tube, Round Tube (Custom Rectangular Available) |
| Surface Treatment | Black finish, pickled, polished, galvanized (customizable) |
Product Advantages & Features
| Advantage Item | Detailed English Description |
| Stable Performance | ASTM A500 Grade B owns balanced hardness and toughness, stable mechanical properties, no deformation under heavy load, excellent structural stability for long-term service. |
| Superior Weldability & Processability | Adopts advanced ERW electric resistance welding technology, smooth welding seam, uniform tube wall, easy to cut, weld, bend and process for various engineering needs. |
| High Cost Performance | Compared with Grade A and Grade C, Grade B achieves the best balance of strength and price, which is the most cost-effective choice for general industrial and construction structural projects. |
| Strict Quality Inspection | All products pass tension test, flattening test and dimensional inspection, free from cracks, rust, burrs and other defects, fully compliant with ASTM international standards. |
| Wide Adaptability | Supports customized sizes and surface treatments, meets diverse requirements of construction, machinery, infrastructure and other industries. |
Main Application Fields
| Application Industry | Specific Usage |
| Building Construction | High-rise building frames, stadium venues, residential building structures, factory workshop steel structures |
| Infrastructure Engineering | Bridge support structures, transmission towers, communication towers, road guardrails, fence frames |
| Mechanical Equipment | Mechanical support frames, equipment base brackets, vehicle frame structures, engineering machinery parts |
| Agriculture & Other Fields | Agricultural greenhouse frames, storage rack structures, municipal engineering structural parts |
Packaging & Shipping & Service
| Item | English Description |
| Packaging Method | Standard export seaworthy packaging, bundled with steel strips, plastic caps at both ends, waterproof cloth wrapping, anti-rust treatment |
| Delivery Time | Stock goods within 3-7 days, customized orders within 15-25 working days |
| Trade Terms | FOB, CFR, CIF, EXW, DDP (support global trade terms) |
| After-sales Service | Provide factory inspection report, ASTM standard certificate, support third-party testing, 24/7 online technical support |
| MOQ | Small MOQ for trial order, bulk order discount available |
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