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ASTM A500 Grade B/C Square Hollow Section Steel Tube SHS Structural Steel Pipe
| Item | Details |
| Product Name | ASTM A500 Grade B/C Square Hollow Section Steel Tube |
| Standard | ASTM A500 / A500M |
| Grade | Grade B, Grade C |
| Shape | Square Hollow Section (SHS) |
| Material | Carbon Steel |
| Manufacturing Process | Cold-formed Welded |
| Surface | Black, Galvanized, Painted |
| Length | 6m, 12m or Customized |
| Thickness | Customized according to requirements |
| Certificate | MTC, SGS, Inspection Report |
| ASTM A500 Square Hollow Section Steel Tube – Chemical Composition by Grade | |||||
| Grade | Carbon (C) Max | Manganese (Mn) Max | Phosphorus (P) Max | Sulfur (S) Max | Copper (Cu) Min (when specified) |
| ASTM A500 Grade B | 0.26% | 1.35% | 0.04% | 0.04% | 0.20% |
| ASTM A500 Grade C | 0.23% | 1.35% | 0.04% | 0.04% | 0.20% |
| ASTM A500 Grade B / Grade C Square Steel Pipe – Mechanical Properties | |||
| Grade | Yield Strength (Min) | Tensile Strength (Min) | Elongation (Min) |
| ASTM A500 Grade B | 46 ksi (315 MPa) | 58 ksi (400 MPa) | 23% |
| ASTM A500 Grade C | 50 ksi (345 MPa) | 62 ksi (425 MPa) | 21% |
High Strength & Load Capacity
Grade B/C square steel pipes are produced as per ASTM A500 specifications and deliver high yield strength and tensile property that are ideal for high end structural applications.
Outstanding Structural Stability
A square hollow section has equal thickness of walls, and this enhances its resistance to compression, flexural and torsional forces.
Better Weldability and Fabrication
The controlled chemical composition quality carbon steel bar easily cut, welded, drilled and processed.
Precise Dimensions & Uniform Quality
Cold-rolled processing guarantees accurate size, consistent wall thickness and dependable dimensional tolerance.
Robust & Long Service Life
Black steel, galvanized or coated for increased corrosion protection and performance in different environments.
High Efficiency of Material Use
By taking advantage of the high strength to weight efficiency of a hollow structure, material consumption can be reduced without sacrificing structural performance.
Extensive Application Range
Widely used in steel buildings, warehouses, bridges, machine cores, support and infrastructure work.
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 A53 Square Steel Pipe
Welding Type: ERW (Electric Resistance Welding)
Standard: ASTM A53 welding specification compliant
Weld Check: 100% NDT inspection for all welds
Advantage: Uniform high-strength welds, meets safety standards for load-bearing structural parts (columns, trusses etc.)
| Application Scenario | Specification (Size × Thickness) |
| Construction & Steel Structure | 50 × 50 × 3.0 mm |
| 75 × 75 × 3.0 mm | |
| 100 × 100 × 4.0 mm | |
| 150 × 150 × 6.0 mm | |
| 200 × 200 × 8.0 mm | |
| Warehouse & Workshop Buildings | 100 × 100 × 4.0–6.0 mm |
| 150 × 150 × 6.0–10.0 mm | |
| 200 × 200 × 8.0–12.0 mm | |
| Infrastructure & Heavy Structures | 250 × 250 × 10.0 mm |
| 300 × 300 × 12.0 mm | |
| 400 × 400 × 16.0 mm | |
| 500 × 500 × 20.0 mm | |
| Solar Mounting & Fence Systems | 40 × 40 × 2.0 mm |
| 50 × 50 × 2.5 mm | |
| 60 × 60 × 3.0 mm | |
| General Technical Parameters | |
| Available Standard | ASTM A500 Grade B, ASTM A500 Grade C |
| Length | 5.8m, 6m, 11.8m, 12m or Customized |
| Surface Treatment | Black, Oiled, Painted, Hot-Dip Galvanized |
| Processing Service | Cutting, Drilling, Welding, Punching, Galvanizing, Custom Fabrication Available |
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ASTM A500 Grade B/C Square Steel Pipes – Surface Treatment Options
ASTM A500 Grade B/C Square Steel Pipes are available with a variety of surface finishes to improve corrosion resistance, durability, and performance in different environments.
Available Surface Treatments:
Black Bare Steel
Standard mill finish with a smooth surface, suitable for general structural applications and further processing.
Anti-Rust Oiled Finish
Applied with a protective oil coating to reduce surface oxidation during storage and transportation.
Red Oxide Primer Coating
Provides basic corrosion protection and an ideal primer layer for painting or additional coating systems.
Hot-Dip Galvanized Coating
Zinc-coated surface offering excellent corrosion resistance and extended service life, especially for outdoor and harsh environments.
Epoxy Coating
Provides strong adhesion, chemical resistance, and enhanced protection against corrosion.
Customized Protective Coatings
Tailored coating solutions are available according to specific project requirements, including color, thickness, and environmental conditions.
ASTM A500 Grade B Grade C Weld Carbon Steel Square Tube Application
| Feature | Description |
| Robust Load-Bearing Capacity | Raw materials include ASTM A500 B/C with high yield strength to support heavy structural loads |
| Easy Fabrication & Welding | Low-carbon steel composition simplifies welding and machining, lowering processing time and expenses |
| Accurate Uniform Sizing | Full-stage quality checks maintain precise dimensions, straight profiles and even wall thickness |
| Customizable Anti-Rust Finishes | Choose from raw black steel, rust-proof oil, coated paint or hot-dip galvanized surface treatment |
| Great Value for Money | Stable reliable quality paired with market-competitive rates |
Royal Steel Group specializes in supplying structural steel pipes and hollow sectional profiles, boasting abundant overseas export experience.
Our sales network covers key global markets: North & South America, the Middle East, Southeast Asia, Africa and Europe.
We implement full-range strict quality inspection systems, cost-attractive quotations and tailor-made fabrication solutions.
Supported by stable international logistics arrangements, we assist worldwide buyers in executing infrastructure and building projects with higher efficiency and lower total investment.
Packing
Small & medium SHS: Secured as bundles with steel strips, wrapped with waterproof tarpaulin; plastic end caps optional
Large-size square tubes: Bulk loading
All bundles labeled with ASTM A500 grade, size, batch data; custom marking acceptable
Optional pre-pack anti-rust oil treatment
Delivery
Available lengths: 20ft (6096mm), 6m, 12m or custom cut sizes
Shipment mode: 20GP/40GP containerized loading or bulk vessel for extra-long profiles
Flexible Incoterms: EXW, FOB, CFR, CIF, DDP
Lead time: 10–20 working days upon deposit; third-party pre-shipment inspection supported
Q1: Are you an ASTM A500 Grade B/C SHS steel tube manufacturer & supplier?
Yes, we are offering with stable quality, best price and rich export experience High Quality ASTM A500 Grade B/C Square Hollow Section Steel Tubes.
Q2: What are the sizes of ASTM A500 square tubes you have?
We can provide all kinds of sizes, length, thickness according to your samples or drawings.
Q3: Do you have surface treatment products?
Yes. Finishes are black steel, oiled surface, red oxide primer, hot-dip galvanizing, epoxy coating and other customized coatings.
Q4: What are the certificates you can provide?
We supply Mill Test Certificates (MTC), chemical composition report, mechanical test report, and inspection documents.
Q5: How do you pack and ship ASTM A500 SHS tubes?
Tubes are tightly bundled by steel straps and shipped by container or bulk vessel with full set of export documents.
Q6: Can you support customized orders?
Yes. We offer tailor-made production, packaging and shipping services according to different projects requirements.
Contact Details
Address
Kangsheng development industry zone,
Wuqing district, Tianjin city, China.
Phone
Hours
Monday-Sunday: 24-hour Service
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