A500 GR B Steel Square Tube

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 $1.29/lb to $1.84/lb, up 1.4% 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.

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Raw Material Market Prices
6.0%30d
Steel HRC
$1,269/short ton
$0.63/lb

Hot Rolled Coil (HRC) is the benchmark for raw steel prices.

Width
Height
Wall
Width
Height
Wall
$/lb
$/ft
7d
1"1"0.12"$1.32$1.90
2.3%
1"1"1/8"$1.32$1.90
2.3%
1-1/4"1-1/4"3/16"$1.71$4.12
1.8%
1-1/2"1-1/2"1/8"$1.32$2.90
2.3%
1-1/2"1-1/2"3/16"$1.29$3.92
1.6%
1-1/2"1-1/2"1/4"$1.35$5.74
2.3%
2"2"0.12"$1.29$3.79
1.6%
2"2"1/8"$1.29$3.93
1.6%
2"2"3/16"$1.29$5.57
1.6%
2"2"1/4"$1.29$6.98
1.6%
2-1/2"2-1/2"0.12"$1.29$4.85
1.6%
2-1/2"2-1/2"1/8"$1.29$5.03
1.6%
2-1/2"2-1/2"3/16"$1.29$7.21
1.6%
2-1/2"2-1/2"1/4"$1.29$9.17
1.6%
3"3"0.12"$1.29$5.91
1.6%
3"3"1/8"$1.29$6.13
1.6%
3"3"3/16"$1.29$8.86
1.6%
3"3"1/4"$1.29$11.36
1.6%
3"3"3/8"$1.29$16.13
1.6%
3-1/2"3-1/2"1/8"$1.29$7.24
1.6%
3-1/2"3-1/2"3/16"$1.29$10.51
1.6%
3-1/2"3-1/2"1/4"$1.29$13.56
1.6%
4"4"0.12"$1.29$8.02
1.6%
4"4"1/8"$1.29$8.33
1.6%
4"4"3/16"$1.29$12.15
1.6%
4"4"1/4"$1.29$15.75
1.6%
4"4"3/8"$1.29$22.28
1.6%
4"4"1/2"$1.33$28.77
2.3%
4-1/2"4-1/2"3/16"$1.29$13.80
1.6%
4-1/2"4-1/2"1/4"$1.29$17.94
1.6%
5"5"3/16"$1.29$15.44
1.6%
5"5"1/4"$1.29$20.15
1.6%
5"5"3/8"$1.29$28.86
1.6%
5"5"1/2"$1.33$37.81
2.3%
6"6"3/16"$1.29$18.74
1.6%
6"6"1/4"$1.29$24.54
1.6%
6"6"3/8"$1.29$35.45
1.6%
6"6"1/2"$1.33$46.87
2.3%
7"7"3/16"$1.80$30.74
0.0%
7"7"3/8"$1.80$58.64
0.0%
7"7"1/2"$1.82$76.53
0.0%
8"8"1/4"$1.80$46.48
0.0%
8"8"3/8"$1.80$67.84
0.0%
8"8"1/2"$1.82$88.91
0.0%
10"10"1/4"$1.80$58.73
0.0%
12"12"1/4"$1.84$72.55
0.0%

46 items

Prices last updated September 2026

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