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Steel Square Tubing
Steel square tubing is a welded structural product with an internal weld seam, available in various sizes and grades (Q195/Q235/Q345/ASTM A500). It is widely used for construction, furniture, guardrails, and ornamental purposes. Surface treatments include painting and embossing.
ASTM: A500 Gr.B / A513JIS: SS400 / STKM12AGB: Q235B / Q345B
MaterialGB6728-2002 / JIS G3466 / ASTM A500 / ASTM A513
Thickness0.6-25 mm
Width15x15 - 500x500 mm
LengthMax. 12 meters
MOQ1 Ton
Lead Time7-15 days
PortShanghai / Tianjin
Response within 24 hours
In Stock — Ready to Ship
| Material Grade | GB6728-2002 / JIS G3466 / ASTM A500 / ASTM A513 | Standard | GB6728-2002 / JIS G3466 / ASTM A500 / ASTM A513 |
| Thickness Range | 0.6-25 mm | Width Range | 15x15 - 500x500 mm |
| Length Range | Max. 12 meters | MOQ | 1 Ton |
| Lead Time | 7-15 days | Port of Shipment | Shanghai / Tianjin |
| C | Varies by grade | Si | Varies by grade |
| Mn | Varies by grade | P | ≤0.045 |
| S | ≤0.050 | Yield Strength | ≥235 MPa |
| Tensile Strength | ≥370 MPa |
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