ASTM A500 Gr.B / Gr.C Galvanized Square Tube | Factory Direct, Custom Sizes, Fast Delivery
| Item | Specification |
| Product | Galvanized Square Tube |
| Standard | ASTM A500 |
| Grades | Gr.B / Gr.C |
| Shape | Square Hollow Section (SHS) |
| Material | Carbon / Mild Steel |
| Manufacturing | Cold-Formed / Welded |
| Galvanizing | Hot-Dip Galvanized |
| Zinc Coating | Customized according to requirements |
| Outer Size | Customized |
| Wall Thickness | Customized |
| Standard Length | 6 m / 12 m |
| Surface | Zinc-Coated, Smooth Finish |
| Ends | Plain / Cut / Customized |
| Inspection | Mill Test Certificate / Third-Party Inspection Available |
ASTM A500 Grade B fits most common structural projects, striking a practical balance between mechanical strength, good weldability and overall cost‑efficiency.
Compared with Grade B, ASTM A500 Grade C features elevated yield and tensile strength. It is the preferred choice for projects that demand superior structural performance and heavier load‑bearing capability.
For better defence against moisture and atmospheric corrosion, we can deliver both grades with galvanized surface treatment.
Hot‑Dip Galvanized Coating
The applied zinc layer shields base steel against moisture and atmospheric rust, enabling these tubes to perform reliably in both indoor and outdoor working conditions.
Consistent Structural Performance
ASTM A500 Grade B and Grade C deliver solid mechanical properties, well‑suited for structural frames, support members, columns and custom‑fabricated steel parts.
Square Hollow Profile
Its consistent square cross‑section brings favourable strength‑to‑weight ratios. This profile also eases everyday fabrication work including cutting, welding and drilling.
Flexible Custom Options
We accommodate project and shipping‑related needs through customised dimensions, wall thickness, cut lengths, zinc coating weight, end finishing and packaging solutions.
ASTM A500 galvanized hollow sections are commonly used for:
Steel structure frames
Construction and building projects
Warehouse and workshop structures
Fencing and gates
Handrails and guardrails
Solar mounting structures
Agricultural and greenhouse structures
Machinery frames
Trailer and vehicle components
Outdoor supports and equipment
Industrial platforms and structural supports
Galvanized square tubing outperforms bare carbon‑steel square tubes when it comes to rust resistance and outdoor weather exposure. That makes it an ideal pick for outdoor frameworks, agricultural installations and infrastructure parts. In these scenarios, frequent repainting and upkeep would otherwise drive up overall long‑term operating expenses.
When planning structural builds, choosing the right ASTM A500 grade, tube dimension, wall gauge and zinc‑coating specification is critical. These key parameters directly determine the target load‑bearing performance and expected service lifespan of your project.
We provide complete quality documentation and inspection support for our galvanized square tubes. Available test services cover the following items:
Chemical composition analysis
Mechanical performance testing
Dimensional verification
Wall thickness check
Zinc coating assessment
Surface condition evaluation
Full Mill Test Certificates (MTC) are provided. SGS or other independent third‑party inspections can also be arranged at your request.
All galvanized square tubes are firmly bundled to withstand rough handling during export transit. Protective packaging can be adjusted to suit container stuffing, bulk cargo delivery and destination‑specific conditions.
We regularly ship goods via 20GP, 40GP and 40HQ containers, alongside bulk vessel shipments.
Q: What grades do you offer for galvanized square tubes?
A: We supply ASTM A500 Grade B and Grade C. Should your project call for alternative standards or material grades, we are happy to discuss feasible options.
Q: Do you provide hot‑dip galvanized tubing?
A: Absolutely. Hot‑dip galvanizing is offered, and we can adjust zinc coating weights to match your specifications.
Q: Is custom sizing supported?
A: Yes. We can tailor outer dimensions, wall thickness, cut‑to‑length, zinc coating and end finishing to fit your needs.
Q: What lengths do you normally supply for export orders?
A: 6 m and 12 m are our standard export lengths. We can also produce alternative lengths based on project demands.
Q: Can you issue inspection‑related paperwork?
A: Sure. Mill Test Certificates (MTC) are available, and third‑party reports like SGS can be arranged on request.
Sourcing ASTM A500 Grade B or Grade C galvanized square tubes for your construction and structural‑steel projects? Reach out to Royal Steel Group-galvanized steel tube supplier. We can walk you through technical specifications, prepare competitive quotations, oversee production, arrange inspections and deliver reliable shipping solutions worldwide.
ROYAL GROUP
Address
Kangsheng development industry zone,
Wuqing district, Tianjin city, China.
Phone
Hours
Monday-Sunday: 24-hour Service
