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Products Steel Tube Round Tube

Hot-Rolled & Cold-Rolled Round Steel Tubing

Round steel tubing plays an important role in commercial and industrial operations, from manufacturing to building remodeling. At Triple-S Steel®, we supply hot-rolled and cold-rolled round steel tubing for a variety of applications:

  • Mechanical tubing for automotive and heavy equipment parts
  • Heat exchanger tubing
  • Boiler tubes for power generation, oil and gas, and other industrial applications
  • Structural steel tubes for building construction and scaffolding
  • Hydraulic tubes for forklifts, construction equipment, and other machinery

Our extensive inventory helps customers meet project requirements for tight tolerances, corrosion resistance, tensile strength, and other factors.

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Structural Steel Round Tube Options

We carry many structural steel round tube grades, gauges, and sizes. Stock dimensions range from 18-gauge (0.049 inches) 5/8 inch tube to 4 and 6-inch tubing with a gauge thickness of 11 (0.120 inches).

Carbon steel offers excellent properties for construction applications. Mechanical and high-pressure applications typically use high-strength low-alloy steel such as M1010 round mechanical tubing instead. For reinforced, abrasion-resistant, and heavy-duty needs, cold-rolled round steel tubing is an excellent fit.

Also Available in The Following Shapes:

Rectangular Tube

Rectangular Tube
Square Tube

Square Tube

Hot-Rolled Round Steel Tubing

Choose hot-rolled round steel tubing when surface appearance and precise dimensions are less important than work efficiency and hardness. Examples include automotive exhaust tubing and general-purpose building structures.

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Cold-Rolled Round Steel Tubing

Cold-rolled round steel tubing undergoes tempering for enhanced malleability and tensile strength. This type of round tubing offers:

  • Tight tolerances
  • Corrosion resistance
  • Smooth surface finish
  • Uniform interior and exterior diameter

For high-performance manufacturing needs or industrial applications with high-pressure requirements, cold-rolled steel is ideal.

Steel Round Tube Products

Please include your desired length in the comments section when reviewing your cart.
namesize descriptiongradeweightAdd To Quote Cart
ALUMINUM ROUND TUBING 1/2 X .125 60610.18
ALUMINUM ROUND TUBING 1 X 11GA 60610.394
ALUMINUM ROUND TUBING 1-1/4 X .125 60610.576
ALUMINUM ROUND TUBING 1-3/8 X .125 WALL 60610.58
ALUMINUM ROUND TUBING 1-3/4 X .125 WALL 60610.79
ALUMINUM ROUND TUBING 2 X .125 WALL 60610.866
ALUMINUM ROUND TUBING 1-1/2 X .250 60611.166666
ALUMINUM ROUND TUBING 3 X .125 WALL 60611.33
ALUMINUM ROUND TUBING 2-3/8 X .188 WALL 60611.52
ALUMINUM ROUND TUBING 3-1/2 X .125 WALL 60611.56
ALUMINUM ROUND TUBING 2 X .500 WALL 60612.77
ALUMINUM ROUND TUBING 3-1/2 X .750 WALL 60617.62
ALUMINUM ROUND TUBING 3/4 X 16GA 60630.167
ALUMINUM ROUND TUBING 1 X .062 60630.22
ALUMINUM ROUND TUBING 1-1/2 X 16GA 60630.345
ALUMINUM ROUND TUBING 1 X 11GA 60630.394
ALUMINUM ROUND TUBING 1-1/4 X .125 60630.576
ALUMINUM ROUND TUBING 1-1/2 X 11GA 60630.635
ALUMINUM ROUND TUBING 2 X .125 WALL 60630.866
ALUMINUM ROUND TUBING 3 X .125 WALL 60631.355
ALUMINUM ROUND TUBING 6 X .125 WALL 60632.7
ALUMINUM ROUND TUBING 8 X .125 WALL 60633.71
ROUND TUBING 1/2 OD X 16 GA 0.302
ROUND TUBING 5/8 OD X 16 GA 0.389
ROUND TUBING 7/8 OD X 18 GA 0.432
ROUND TUBING 3/4 OD X 16 GA 0.479
ROUND TUBING 3/4 OD X 14 GA 0.591
ROUND TUBING 1 OD X 16 GA 0.649
ROUND TUBING 7/8 OD X 14 GA 0.7021
ROUND TUBING 3/4 OD X 11 GA 0.807
ROUND TUBING 1 OD X 14 GA 0.813
ROUND TUBING 1-1/4 OD X 16 GA 0.825
ROUND TUBING 1-3/8 OD X 16 GA 0.9094
ROUND TUBING 1-1/2 OD X 16 GA 0.996
ROUND TUBING 1-1/4 OD X 14 GA 1.034
ROUND TUBING 1-5/8 OD X 16 GA 1.0829
ROUND TUBING 1.66 OD X 16 GA 1.107
ROUND TUBING 1 OD X 11 GA 1.128
ROUND TUBING 1-1/2 OD X 14 GA 1.256
ROUND TUBING 2 OD X 16 GA 1.343
ROUND TUBING 1.66 OD X .080 1.35
ROUND TUBING 1.66 OD X 14 GA 1.367
ROUND TUBING 1-1/2 OD X 13 GA 1.426
ROUND TUBING 1-1/4 OD X 11 GA 1.4482
ROUND TUBING 1-3/4 OD X 14 GA 1.478
ROUND TUBING 2-1/4 OD X 16 GA 1.517
ROUND TUBING 1.90 OD X 14 GA 1.589
ROUND TUBING 1-1/2 OD X 12 GA 1.648
ROUND TUBING 1-3/4 OD X 13 GA 1.679
ROUND TUBING 2-1/2 OD X 16 GA 1.69
ROUND TUBING 2 OD X 14 GA 1.699
ROUND TUBING 1-1/2 OD X 11 GA 1.769
ROUND TUBING 2 OD X 13 GA 1.933
ROUND TUBING 1.90 OD X 12 GA 2.03
ROUND TUBING 3 OD X 16 GA 2.037
ROUND TUBING 1-3/4 OD X 11 GA 2.089
ROUND TUBING 2 OD X 11 GA 2.409
ROUND TUBING 3 OD X .080 MIN 2.495
ROUND TUBING 3 OD X 14 GA 2.586
ROUND TUBING 4 OD X 16 GA 2.732
ROUND TUBING 2-1/2 OD X 11 GA 3.05
ROUND TUBING 1-3/4 OD X .188 3.136
ROUND TUBING 2-3/8 OD X 10 GA 3.25
ROUND TUBING 1.90 OD X .188 3.44
ROUND TUBING 2-7/8 OD X 11 GA 3.531
ROUND TUBING 3 OD X 11 GA 3.691
ROUND TUBING 2-1/2 OD X .188 4.642
ROUND TUBING 4 OD X 11 GA 5.173
ROUND TUBING 5 OD X 11 GA 6.25
ROUND TUBING 4 OD X .188 7.654
ROUND TUBING 6-5/8 OD X .120 8.337
ROUND TUBING 5 OD X .188 9.662
ROUND TUBING 6 OD X .188 11.67
ROUND TUBING 12 OD X 12GA WALL 13.84
ROUND TUBING 4 OD X .375 14.52
ROUND TUBING 8-5/8 OD X .375 33.07
ROUND TUBING 8 OD X .625 49.23
ROUND TUBING 1-1/4 OD X .375 10263.504
ROUND TUBING 2-1/2 OD X .375 10268.51
ROUND TUBING 2-1/4 OD X.563 (9/16)WALL102610.14
ROUND TUBING 3-1/2 OD X .375 102612.52
ROUND TUBING 3 OD X .500 102613.35
ROUND TUBING 2-3/4 OD X .625 102614.18
ROUND TUBING 4 OD X .500 102618.69
ROUND TUBING 3-1/8 X .750 102619.02
ROUND TUBING 3-1/2 OD X .625 102619.19
ROUND TUBING 3-1/2 OD X .750 102622.03
ROUND TUBING 5 OD X .500 102624.03
ROUND TUBING 6 OD X .250 102629.37
ROUND TUBING 5 OD X .750 102634.04
ROUND TUBING 7 OD X .500 102634.71
ROUND TUBING 4-1/2 OD X 1 102637.38
ROUND TUBING 6-1/2 OD X 1.500 102680.1
ROUND TUBING 5/8 OD X 16 GA 500B0.3888
ROUND TUBING 2 OD X 16 GA 500B1.343
ROUND TUBING 1-1/2 OD X 11 GA 500B1.77
ROUND TUBING 2-3/8 OD X 12 GA (.109) 500B2.638
ROUND TUBING 2-3/8 OD X 10 GA 500B3.207
ROUND TUBING 3-1/2 OD X 11 GA 500B4.332
ROUND TUBING 3-1/2 OD X .125 500B4.506
ROUND TUBING 4 OD X 11 GA 500B5.173
ROUND TUBING 2-1/2 OD X .250 500B6.0075
ROUND TUBING 3 OD X .250 500B7.343
ROUND TUBING 4 OD X .188 500B7.654
ROUND TUBING 6-5/8 OD X .120 500B8.337
ROUND TUBING 4-1/2 OD X .188 500B8.658
ROUND TUBING 5 OD X .188 500B9.662
ROUND TUBING 4 OD X .250 500B10.01
ROUND TUBING 6 OD X .188 500B11.67
ROUND TUBING 5 OD X .250 500B12.68
ROUND TUBING 6-5/8 OD X .188 500B12.93
ROUND TUBING 6 OD X .250 500B15.352
ROUND TUBING 5 OD X .312 500B15.62
ROUND TUBING 4-1/2 OD X .375 500B16.52
ROUND TUBING 8-5/8 OD X .188 500B16.98
ROUND TUBING 7 OD X .250 500B18.02
ROUND TUBING 5 OD X .375 500B18.54
ROUND TUBING 5-1/2 OD X .375 500B20.53
ROUND TUBING 10-3/4 OD X .188 500B21.204
ROUND TUBING 6 OD X .375 500B22.53
ROUND TUBING 8-5/8 OD X .250 500B22.832
ROUND TUBING 5 OD X .500 500B24.03
ROUND TUBING 6-5/8 OD X .375 500B25.055
ROUND TUBING 10 OD X .250 500B26.03
ROUND TUBING 7 OD X .375 500B26.56
ROUND TUBING 5.563 OD X .500 500B27.04
ROUND TUBING 6-5/8 OD X .432 500B28.6
ROUND TUBING 6 OD X .500 500B29.35
ROUND TUBING 12 OD X .250 500B31.37
ROUND TUBING 10 OD X .3125 500B32.383
ROUND TUBING 6-5/8 OD X .500 500B32.738
ROUND TUBING 8-5/8 OD X .375 500B33.07
ROUND TUBING 12-3/4 OD X .250 500B33.406
ROUND TUBING 7 OD X .500 500B34.71
ROUND TUBING 9-5/8 OD X .375 500B37.046
ROUND TUBING 7-1/2 OD X .500 500B37.38
ROUND TUBING 10 OD X .375 500B38.55
ROUND TUBING 16 OD X .250 500B42.05
ROUND TUBING 8-5/8 OD X .500 500B43.43
ROUND TUBING 9-5/8 OD X .500 500B47.5
ROUND TUBING 12-3/4 OD X .375 500B49.61
ROUND TUBING 12 OD X .375 500B49.61
ROUND TUBING 10 OD X .500 500B50.73
ROUND TUBING 16 OD X .312 500B52.44
ROUND TUBING 8-5/8 OD X .625 500B53.45
ROUND TUBING 14 OD X .375 500B54.62
ROUND TUBING 10-3/4 OD X .500 500B54.74
ROUND TUBING 10 OD X .625 500B62.58
ROUND TUBING 16 OD X .375 500B62.637
ROUND TUBING 12-3/4 OD X .500 500B65.476
ROUND TUBING 18 OD X .375 500B70.654
ROUND TUBING 14 OD X .500 500B72.09
ROUND TUBING 14 OD X .625 500B89.39
ROUND TUBING 16 OD X .625 500B102.724
ROUND TUBING 1/2 OD X 16 GA 5130.302
ROUND TUBING 7/8 OD X 16 GA 5130.536
ROUND TUBING 3/4 OD X 14 GA 5130.5913
ROUND TUBING 1 OD X 16 GA 5130.6491
ROUND TUBING 3/4 OD X 12 GA 5130.746
ROUND TUBING 1 OD X 14 GA 5130.813
ROUND TUBING 1-1/4 OD X 16 GA 5130.825
ROUND TUBING 1-1/2 OD X 16 GA 5130.9962
ROUND TUBING 1-5/16 OD X 14 GA 5131.09
ROUND TUBING 1 OD X 11 GA 5131.128
ROUND TUBING 1-3/4 OD X 16 GA 5131.169
ROUND TUBING 2 OD X 16 GA 5131.343
ROUND TUBING 1-1/4 OD X 11 GA 5131.4482
ROUND TUBING 1-1/2 OD X 11 GA 5131.768
ROUND TUBING 2-3/8 OD X 14 GA 5132.032
ROUND TUBING 1-3/4 OD X 11 GA 5132.089
ROUND TUBING 2-1/2 OD X 14 GA 5132.143
ROUND TUBING 1-3/8 OD X .188 5132.37
ROUND TUBING 2 OD X 11 GA 5132.409
ROUND TUBING 1-1/4 OD X .219 5132.411
ROUND TUBING 2-1/4 OD X .125 5132.8368
ROUND TUBING 2-3/8 OD X 11 GA 5132.89
ROUND TUBING 2-7/8 OD X 11 GA 5133.53
ROUND TUBING 1-3/4 OD X .219 5133.5808
ROUND TUBING 3 OD X 11 GA 5133.691
ROUND TUBING 1-3/4 OD X .250 5134.005
ROUND TUBING 1-5/8 OD X .312 5134.386
ROUND TUBING 2-1/2 OD X .188 5134.642
ROUND TUBING 4 OD X .125 5135.173
ROUND TUBING 3 OD X .188 5135.646
ROUND TUBING 2 OD X .375 5136.508
ROUND TUBING 3-3/4 OD X .188 5137.15
ROUND TUBING 2 OD X .438 5137.3
ROUND TUBING 6 OD X 11 GA 5137.536
ROUND TUBING 2-3/8 OD X .375 5138.01
ROUND TUBING 4 OD X .219 5138.843
ROUND TUBING 5 OD X .188 5139.662
ROUND TUBING 3 OD X .375 51310.51
ROUND TUBING 3 OD X .500 51313.35
ROUND TUBING 2-1/2 OD X .750 51314.02
ROUND TUBING 4 OD X .375 51314.52
ROUND TUBING 3-1/4 OD X .500 51314.69
ROUND TUBING 3 OD X .688 51316.99
ROUND TUBING 4-1/2 OD X .563 51323.67
ROUND TUBING 3-1/2 OD X .875 51324.53
ROUND TUBING 4-1/2 OD X .625 51325.865
ROUND TUBING 10 OD X .250 51326.03
ROUND TUBING 6-3/4 OD X .500 51333.375
ROUND TUBING 4 OD X 1.250 51336.71
ROUND TUBING 1-5/8 OD X .188 5192.885
ROUND TUBING 6 OD X 16 GA 5194.12
ROUND TUBING 6 OD X .125 5197.842
ROUND TUBING 2" OD X .750 51910
ROUND TUBING 5-1/2 OD X .188 51910.665
ROUND TUBING 3 OD X .500 51913.35
ROUND TUBING 3-1/2 OD X .500 51916.02
ROUND TUBING 3 OD X .750 51918.0225
ROUND TUBING 3-1/4 OD X .750 51920.03
ROUND TUBING 5 OD X .500 51924.03
ROUND TUBING 4-1/2 OD X .750 51928.04
ROUND TUBING 8 OD X .500 51940.05
ROUND TUBING 6 OD X .750 51942.05
ROUND TUBING 10 OD X .500 51950.73
ROUND TUBING 6 OD X 1.00 51953.5
ROUND TUBING 7-1/2 OD X .750 51954.07
ROUND TUBING 7-3/4 OD X .750 51956.07
ROUND TUBING 5-1/2 OD X 1.25 51956.74
ROUND TUBING 12 OD X .500 51961.41
ROUND TUBING 6-1/2 OD X 1.500 51980.1
ROUND TUBING 8 OD X 1.750 519116.81
ROUND TUBING 10 OD X 3 519224
ROUND TUBING 2-3/8 OD X .250 BARE5.674
ROUND TUBING 3-1/2 OD X .250 BARE8.678
ROUND TUBING 12-3/4 OD X 0.625 BARE81.01
ROUND TUBING 3/4 OD X 11 GA DOM0.807
ROUND TUBING 3/4 OD X .125 DOM0.8344
ROUND TUBING 7/8 OD X .120 WALL DOM0.9676
ROUND TUBING 1-1/4 OD X 14 GA DOM1.034
ROUND TUBING 1 OD X 11 GA DOM1.128
ROUND TUBING 1 OD X .125 DOM1.1666
ROUND TUBING 1-1/4 OD X 13 GA DOM1.172
ROUND TUBING 2 OD X 16 GA DOM1.343
ROUND TUBING 7/8 OD X .188 DOM1.379
ROUND TUBING 1-1/2 OD X 13 GA DOM1.426
ROUND TUBING 1-1/4 OD X 11 GA DOM1.4482
ROUND TUBING 1 OD X .188 DOM1.63
ROUND TUBING 7/8 OD X .250 WALL DOM1.669
ROUND TUBING 1-3/4 OD X 13 GA DOM1.679
ROUND TUBING 2-1/2 OD X 16 GA DOM1.69
ROUND TUBING 1-1/2 OD X 11 GA DOM1.769
ROUND TUBING 1-1/8 OD X .188 DOM1.881
ROUND TUBING 1-5/8 OD X 11 GA DOM1.929
ROUND TUBING 1 OD X .250 DOM2.003
ROUND TUBING 3 OD X 16 GA DOM2.037
ROUND TUBING 1-3/4 OD X 11 GA DOM2.089
ROUND TUBING 1-1/4 OD X .188 DOM2.132
ROUND TUBING 1 OD X .281 WALL DOM2.158
ROUND TUBING 3-1/4 OD X .065 (16 GA) DOM2.211
ROUND TUBING 1-1/8 OD X .250 DOM2.35
ROUND TUBING 2 OD X 11 GA DOM2.409
ROUND TUBING 1-1/4 OD X .219 DOM2.411
ROUND TUBING 1-5/8 OD X .156 DOM2.447
ROUND TUBING 1-1/2 OD X .188 DOM2.634
ROUND TUBING 1-1/4 OD X .250 DOM2.67
ROUND TUBING 2-1/4 OD X 11 GA DOM2.73
ROUND TUBING 3-1/2 OD X 14 GA DOM2.922
ROUND TUBING 3 OD X 13 GA DOM2.947
ROUND TUBING 1-3/4 OD X .188 DOM3.1362
ROUND TUBING 1-1/2 OD X .235 DOM3.17
ROUND TUBING 2-1/2 OD X .125 DOM3.171
ROUND TUBING 1-5/8 OD X .219 DOM3.289
ROUND TUBING 1-1/2 OD X .250 DOM3.338
ROUND TUBING 2-3/4 OD X .120 DOM3.5
ROUND TUBING 1-3/4 OD X .219 DOM3.583
ROUND TUBING 3 OD X 11 GA DOM3.691
ROUND TUBING 1-7/8 OD X .219 WALL DOM3.867
ROUND TUBING 1-3/4 OD X .250 DOM4.005
ROUND TUBING 3-1/4 OD X 11 GA DOM4.011
ROUND TUBING 3-1/4 OD X .125 DOM4.172
ROUND TUBING 2-3/8 OD X .188 DOM4.391
ROUND TUBING 1-1/2 OD X .375 DOM4.506
ROUND TUBING 2 OD X .250 DOM4.673
ROUND TUBING 1-3/4 OD X .312 DOM4.804
ROUND TUBING 4-1/4 OD X .125 DOM5
ROUND TUBING 4 OD X 11 GA DOM5.173
ROUND TUBING 2-1/4 OD X .250 DOM5.34
ROUND TUBING 2-7/8 OD X .188 DOM5.395
ROUND TUBING 1-3/4 OD X .375 DOM5.507
ROUND TUBING 2-3/8 OD X .250 DOM5.674
ROUND TUBING 2-1/2 OD X .250 DOM6.008
ROUND TUBING 3-3/8 OD X .188 DOM6.444
ROUND TUBING 2-1/4 OD X .312 DOM6.475
ROUND TUBING 3 OD X .219 DOM6.505
ROUND TUBING 2 OD X .375 DOM6.508
ROUND TUBING 2-1/4 ODX.344 (11/32)WALLDOM7.002
ROUND TUBING 3 OD X .250 DOM7.343
ROUND TUBING 6 OD X 11 GA DOM7.536
ROUND TUBING 2 OD X .500 DOM8.01
ROUND TUBING 2-1/2 OD X .375 DOM8.511
ROUND TUBING 3-1/2 OD X .250 DOM8.6775
ROUND TUBING 2-1/4 OD X .500 DOM9.345
ROUND TUBING 3-1/2 OD X .312 DOM9.38
ROUND TUBING 2-3/4 OD X .375 DOM9.512
ROUND TUBING 5 OD X .188 DOM9.662
ROUND TUBING 4-1/2 OD X .219 DOM10.01
ROUND TUBING 4 OD X .250 DOM10.01
ROUND TUBING 3 OD X .375 DOM10.51
ROUND TUBING 2-1/2 OD X .500 DOM10.68
ROUND TUBING 2-3/4 OD X .438 DOM10.82
ROUND TUBING 4-1/2 OD X .250 DOM11.3475
ROUND TUBING 2-1/2 OD X .563 DOM11.65
ROUND TUBING 6 OD X .188 DOM11.67
ROUND TUBING 3 OD X .438 DOM12
ROUND TUBING 2-3/4 OD X .500 DOM12.02
ROUND TUBING 2-1/2 OD X .625 DOM12.5
ROUND TUBING 5 OD X .250 DOM12.68
ROUND TUBING 2-5/8 OD X .625 DOM13.35
ROUND TUBING 3 OD X .500 DOM13.35
ROUND TUBING 2-3/4 OD X .625 DOM14.18
ROUND TUBING 2-3/4 OD X .688 DOM15.15
ROUND TUBING 6 OD X .250 DOM15.35
ROUND TUBING 3 OD X .625 DOM15.85
ROUND TUBING 3-1/2 OD X .500 DOM16.02
ROUND TUBING 3-1/4 OD X .625 DOM17.52
ROUND TUBING 5 ODX 4.250ID X .375 WALLDOM18.54
ROUND TUBING 7-1/4 OD X .250 DOM18.69
ROUND TUBING 6-5/8 OD X 5/16 WALL DOM21.07
ROUND TUBING 4 OD X .625 DOM22.53
ROUND TUBING 6 OD X .375 DOM22.53
ROUND TUBING 5 OD X .500 DOM24.03
ROUND TUBING 4-1/4 OD X .625 DOM24.2
ROUND TUBING 7-1/2 OD X .375 DOM28.536
ROUND TUBING 5 OD X 1 DOM42.72
ROUND TUBING 8-3/4 OD X .500 DOM44.06
ROUND TUBING 12 OD X .500 DOM61.41

Friendly Experts in Hot Rolled Round Steel Tubing

At Triple-S Steel®, we have over 50 years of experience with steel tubing. Our team is happy to help customers select the right steel grade for demanding applications. Request a quote for round steel tubing right away.

Request a Quote

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