Steel A500 GR B Square Tube Prices
Current A500 GR B Steel Square Tube prices by dimension, with $/lb for cross-size comparison.
A500 GR B/C Square Tube currently ranges from $1.18/lb to $1.71/lb, flat 0.0% over the last 7 days.
About A500 GR B|Structural tubing, Grade B. Minimum 42 KSI yield, 58 KSI tensile. This is the lower-strength tier of the A500 spec (Grade C bumps yield to 46 KSI). Most mills today produce to Grade C anyway and dual-certify, so standalone Grade B is becoming less common in new production. If you're seeing it, it's either older inventory or the customer specified B because that's what the engineer's calculation needed. Same welded-seam HSS (hollow structural sections) product as A500 GR B/C. Not for precision machining. Compare to A500 GR B/C (dual-cert, effectively the same product) and A36 (plate/bar equivalent structural grade).
About Square Tube|A hollow structural section (HSS) used for frames, supports, roll cages, and fabricated assemblies. It's mostly a cut-and-weld product, not typically used as machining stock.
Raw Material Market Prices
3.5%30d
Steel HRC
$1,205/short ton
$0.60/lb
Hot Rolled Coil (HRC) is the benchmark for raw steel prices.
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Prices last updated August 2026
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