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ASTM A500 Grade B/C Square Structure Steel Pipes
| ASTM A500 Square Steel Pipe Detail | |||
| Material Standard | ASTM A500 Grade B/C | Length | 6m/20ft、12m/40ft, and custom lengths available |
| Wall Thickness Tolerance | ±10% | Wall Thickness | 1.2mm-12.0mm, Customized |
| Side Tolerance | ±0.5mm/±0.02in | Quality Certification | ISO 9001, SGS/BV Third-Party Inspection Report |
| Side | 20×20 mm, 50×50 mm,60×60 mm,70×70 mm,75×75 mm,80×80 mm,Customized | Applications | Steel structure frames, various structural components and special-purpose supports for multiple fields |
| ASTM A500 Square Steel Pipe – Chemical Composition by Grade | ||
| Element | Grade B (%) | Grade C (%) |
| Carbon (C) | 0.26 max | 0.26 max |
| Manganese (Mn) | 1.20 max | 1.20 max |
| Phosphorus (P) | 0.035 max | 0.035 max |
| Sulfur (S) | 0.035 max | 0.035 max |
| Silicon (Si) | 0.15–0.40 | 0.15–0.40 |
| Copper (Cu) | 0.20 max (opt.) | 0.20 max (opt.) |
| Nickel (Ni) | 0.30 max (opt.) | 0.30 max (opt.) |
| Chromium (Cr) | 0.30 max (opt.) | 0.30 max (opt.) |
| ASTM A500 Square Steel Pipe – Mechanical Properties | ||
| Property | Grade B | Grade C |
| Yield Strength (MPa / ksi) | 290 MPa / 42 ksi | 317 MPa / 46 ksi |
| Tensile Strength (MPa / ksi) | 414–534 MPa / 60–77 ksi | 450–565 MPa / 65–82 ksi |
| Elongation (%) | 20% min | 18% min |
| Bend Test | Pass 180° | Pass 180° |
ASTM steel pipe refers to carbon steel pipe used in oil and gas transmission systems. It is also used to transport other fluids such as steam, water, and mud.
The ASTM STEEL PIPE specification covers both welded and seamless fabrication types.
Welded Types: ERW Pipe
Welding Compliance and Inspection for ASTM A500 Square Steel Pipe
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Welding Method: ERW (Electric Resistance Welding)
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Standards Compliance: Fully conforms to ASTM A500 welding process requirements
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Weld Quality: 100% of welds pass non-destructive testing (NDT)
Note: ERW welding ensures strong, uniform seams, meeting structural performance and safety standards for columns, trusses, and other load-bearing applications.
| ASTM A500 Square Steel Pipe Guage | |||
| Gauge | Inch | mm | Appl. |
| 16 GA | 0.0598″ | 1.52 mm | Lightweight Structures / Furniture Frames |
| 14 GA | 0.0747″ | 1.90 mm | Lightweight Structures, Agricultural Equipment |
| 13 GA | 0.0900″ | 2.29 mm | Common North American Mechanical Structures |
| 12 GA | 0.1046″ | 2.66 mm | Engineering Lightweight Structures, Supports |
| 11 GA | 0.1200″ | 3.05 mm | One of the Most Common Specifications for Square Tubes |
| 10 GA | 0.1345″ | 3.42 mm | North American Stock Standard Thicknesses |
| 9 GA | 0.1495″ | 3.80 mm | Applications for Thicker Structures |
| 8 GA | 0.1644″ | 4.18 mm | Heavy-Duty Engineering Projects |
| 7 GA | 0.1793″ | 4.55 mm | Engineering Structural Support Systems |
| 6 GA | 0.1943″ | 4.93 mm | Heavy-Duty Machinery, High-Strength Frames |
| 5 GA | 0.2092″ | 5.31 mm | Heavy-Wall Square Tubes, Engineering Structures |
| 4 GA | 0.2387″ | 6.06 mm | Large Structures, Equipment Supports |
| 3 GA | 0.2598″ | 6.60 mm | Applications Requiring High Load-Bearing Capacity |
| 2 GA | 0.2845″ | 7.22 mm | Custom Thick-Wall Square Tubes |
| 1 GA | 0.3125″ | 7.94 mm | Extra-Thick Wall Engineering |
| 0 GA | 0.340″ | 8.63 mm | Custom Extra-Thick |
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| ASTM A500 Square Steel Pipe - Core Scenarios & Specification Adaptation | ||
| Application Scenarios | Square Size (inch) | Wall / Gauge |
| Structural Frames | 1½″–6″ | 11GA – 3GA (0.120″–0.260″) |
| Mechanical Structures | 1″–3″ | 14GA – 8GA (0.075″–0.165″) |
| Oil & Gas | 1½″–5″ | 8GA – 3GA (0.165″–0.260″) |
| Storage Racking | 1¼″–2½″ | 16GA – 11GA (0.060″–0.120″) |
| Architectural Decoration | ¾″–1½″ | 16GA – 12GA |
Basic Protection: Each bale is wrapped with tarpaulin, 2-3 desiccant packs are put in each bale, then bale is covered with heat sealed waterproof cloth.
Bundling: The strapping is 12-16mm Φ steel strap, 2-3 tons / bundle for lifting equipment in American port.
Conformance Labeling: Bilingual labels (English + Spanish) are applied with a clear indication of material, spec, HS code, batch and test report number.
Stable cooperation with shipping companies such as MSK, MSC, COSCO efficiently logistics service chain, logistics service chain are we to your satisfaction.
We follow the standards of quality management system ISO9001 in all procedure, and have strict control from packaging material purchase to transport vehicle scheduling. This guarantees the steel pipes from the factory all the way to the project site, helping you build on a solid foundation for a trouble free project!
Q: What standards do your Steel Pipe comply with for Central American markets?
A: Our products meet ASTM A500 Grade B/C standards, which are widely accepted in Central America. We can also provide products compliant with local standards.
Q: How long is the delivery time?
A: The total delivery time (including production and customs clearance) is 45-60 days. We also offer expedited shipping options.
Q: Do you provide customs clearance assistance?
A: Yes, we cooperate with professional customs brokers in Central America to help customers handle customs declaration, tax payment and other procedures, ensuring smooth delivery.
Contact Details
Address
Kangsheng development industry zone,
Wuqing district, Tianjin city, China.
Phone
Hours
Monday-Sunday: 24-hour Service
