Square steel tubing is strong and rigid, suitable for a wide-range of industrial applications. It requires precise alignment and flat surfaces but offers superior resistance to bending and twisting forces.
Product Description
Aladdin Steel's Square Steel Tubing offers unparalleled strength, durability, and versatility. Our precision-engineered tubes are manufactured to exacting standards, ensuring consistent quality and performance. Smooth finishes and tight tolerances for precise and clean welds.
Carbon steel square tubing is a versatile structural and mechanical product widely used in construction, manufacturing, and industrial applications. Produced in square hollow sections, it offers excellent strength, uniformity, and ease of fabrication. It is commonly manufactured using electric resistance welding (ERW) and is available in a range of sizes and wall thicknesses to meet various design requirements.
Standard or custom sizes available.
Product Benefits
Strong and durable for structural applications. Excellent strength-to-weight ratio. Uniform shape for consistent performance. Easy to weld, cut, and fabricate. Cost-effective material option. Available in a wide range of sizes and thicknesses.
Product Advantages
Square shape provides clean lines for architectural use. Efficient load-bearing capabilities. Tight dimensional tolerances for precise fabrication. Readily available and widely standardized. Can be used across multiple industries including construction, fabrication, and equipment manufacturing.
Specifications & Requirements
Commonly produced to ASTM standards such as ASTM A500 and ASTM A513 depending on application. Meets required chemical composition limits for carbon steel. Manufactured to standard dimensional tolerances. Mechanical properties vary based on grade and specification.
Product Properties
High strength and rigidity. Good weldability and machinability. Uniform wall thickness. Moderate corrosion resistance (can be enhanced with coating). Suitable for structural and mechanical applications.
Product Wall Thickness Options
Available in a wide range of wall thicknesses from light-wall tubing to heavy-wall structural sections. Thickness selection depends on application requirements and load conditions.
Product Materials & Manufacturing
Manufactured from carbon steel. Typically produced using Electric Resistance Welding (ERW). May be supplied in hot-rolled or cold-formed conditions. Additional processing such as cutting, coating, galvanizing, or fabrication may be available.
Product Comparable Options
Rectangular steel tubing for similar applications. Round steel tubing where cylindrical profiles are required. ASTM A500 structural tubing. ASTM A513 mechanical tubing for tighter tolerances.
Additional Notes
Commonly used in frames, supports, fencing, equipment, and structural systems. Can be finished with coatings such as galvanizing or painting for improved corrosion resistance. Selection should consider load requirements and environmental conditions.
Benefits of Square Steel Tubing
Superior Strength and Durability: Square tubes can withstand heavy loads and harsh environments.
Applications for Square Steel Tubing
Square steel tubes are suitable for a wide range of industries, including construction, automotive, and manufacturing.
Choose square steel tubing for industrial uses such as structural frames, furniture, and machinery.
Quick Reference Tool
Use our Conversion Charts to calculate dimensions and weights for any tubing or pipe size.
| O.D. |
Wall |
Wt./Ft. |
|
"3/8 x 3/8" (0.375)
|
|
0.035
|
0.161
|
| O.D. |
Wall |
Wt./Ft. |
|
"3/8 x 3/8" (0.375)
|
|
0.049
|
0.216
|
| O.D. |
Wall |
Wt./Ft. |
|
"3/8 x 3/8" (0.375)
|
|
0.065
|
0.272
|
| O.D. |
Wall |
Wt./Ft. |
|
"1/2 x 1/2" (0.500)
|
|
0.035
|
0.221
|
|
0.049
|
0.301
|
|
0.065
|
0.385
|
| O.D. |
Wall |
Wt./Ft. |
|
"5/8 x 5/8" (0.625)
|
|
0.035
|
0.280
|
| O.D. |
Wall |
Wt./Ft. |
|
"5/8 x 5/8" (0.625)
|
|
0.049
|
0.382
|
| O.D. |
Wall |
Wt./Ft. |
|
"5/8 x 5/8" (0.625)
|
|
0.065
|
0.493
|
| O.D. |
Wall |
Wt./Ft. |
|
"3/4 x 3/4" (0.750)
|
|
0.035
|
0.340
|
|
0.049
|
0.467
|
|
0.065
|
0.606
|
|
0.083
|
0.753
|
|
0.109
|
0.950
|
|
0.120
|
1.028
|
| O.D. |
Wall |
Wt./Ft. |
|
"13/16 x 13/16" (0.812)
|
|
0.049
|
0.508
|
| O.D. |
Wall |
Wt./Ft. |
|
"13/16 x 13/16" (0.812)
|
|
0.065
|
0.659
|
| O.D. |
Wall |
Wt./Ft. |
|
".843 x .843" (0.843)
|
|
0.049
|
0.528
|
| O.D. |
Wall |
Wt./Ft. |
|
".843 x .843" (0.843)
|
|
0.065
|
0.686
|
| O.D. |
Wall |
Wt./Ft. |
|
"7/8 x 7/8" (0.875)
|
|
0.035
|
0.399
|
| O.D. |
Wall |
Wt./Ft. |
|
"7/8 x 7/8" (0.875)
|
|
0.049
|
0.549
|
| O.D. |
Wall |
Wt./Ft. |
|
"7/8 x 7/8" (0.875)
|
|
0.065
|
0.714
|
| O.D. |
Wall |
Wt./Ft. |
|
"7/8 x 7/8" (0.875)
|
|
0.083
|
0.891
|
| O.D. |
Wall |
Wt./Ft. |
|
"1 x 1" (1.000)
|
|
0.035
|
0.459
|
|
0.049
|
0.634
|
|
0.065
|
0.827
|
|
0.072
|
0.909
|
|
0.083
|
1.035
|
|
0.095
|
1.169
|
|
0.109
|
1.321
|
|
0.120
|
1.436
|
|
0.134
|
1.578
|
|
0.188
|
2.076
|
| O.D. |
Wall |
Wt./Ft. |
|
"1-1/8 x 1-1/8" (1.125)
|
|
0.035
|
0.518
|
| O.D. |
Wall |
Wt./Ft. |
|
"1-1/8 x 1-1/8" (1.125)
|
|
0.049
|
0.715
|
| O.D. |
Wall |
Wt./Ft. |
|
"1-1/8 x 1-1/8" (1.125)
|
|
0.065
|
0.935
|
| O.D. |
Wall |
Wt./Ft. |
|
"1-1/8 x 1-1/8" (1.125)
|
|
0.083
|
1.173
|
| O.D. |
Wall |
Wt./Ft. |
|
"1-1/8 x 1-1/8" (1.125)
|
|
0.109
|
1.502
|
| O.D. |
Wall |
Wt./Ft. |
|
"1-1/8 x 1-1/8" (1.125)
|
|
0.120
|
1.636
|
| O.D. |
Wall |
Wt./Ft. |
|
"1-1/4 x 1-1/4" (1.250)
|
|
0.035
|
0.578
|
|
0.049
|
0.800
|
|
0.065
|
1.048
|
|
0.072
|
1.153
|
|
0.083
|
1.317
|
|
0.095
|
1.492
|
|
0.109
|
1.691
|
|
0.120
|
1.844
|
|
0.134
|
2.034
|
|
0.188
|
2.715
|
| O.D. |
Wall |
Wt./Ft. |
|
"1-3/8 x 1-3/8" (1.375)
|
|
0.049
|
0.882
|
| O.D. |
Wall |
Wt./Ft. |
|
"1-3/8 x 1-3/8" (1.375)
|
|
0.065
|
1.156
|
| O.D. |
Wall |
Wt./Ft. |
|
"1-1/2 x 1-1/2" (1.500)
|
|
0.035
|
0.697
|
|
0.049
|
0.967
|
|
0.065
|
1.269
|
|
0.072
|
1.398
|
|
0.083
|
1.600
|
|
0.095
|
1.815
|
|
0.109
|
2.062
|
|
0.120
|
2.252
|
|
0.134
|
2.489
|
|
0.188
|
3.355
|
|
0.250
|
4.250
|
| O.D. |
Wall |
Wt./Ft. |
|
"1-3/4 x 1-3/4" (1.750)
|
|
0.035
|
0.816
|
|
0.049
|
1.134
|
|
0.065
|
1.490
|
|
0.083
|
1.882
|
|
0.095
|
2.138
|
|
0.109
|
2.433
|
|
0.120
|
2.660
|
|
0.134
|
2.945
|
|
0.188
|
3.994
|
| O.D. |
Wall |
Wt./Ft. |
|
"1-7/8 x 1-7/8" (1.875)
|
|
0.065
|
1.598
|
| O.D. |
Wall |
Wt./Ft. |
|
"1-7/8 x 1-7/8" (1.875)
|
|
0.083
|
2.020
|
| O.D. |
Wall |
Wt./Ft. |
|
"2 x 2" (2.000)
|
|
0.035
|
0.935
|
|
0.049
|
1.300
|
|
0.065
|
1.711
|
|
0.083
|
2.164
|
|
0.095
|
2.461
|
|
0.109
|
2.803
|
|
0.120
|
3.068
|
|
0.134
|
3.401
|
|
0.188
|
4.633
|
|
0.250
|
5.950
|
|
0.313
|
7.181
|
| O.D. |
Wall |
Wt./Ft. |
|
"2-1/8 x 2-1/8" (2.125)
|
|
0.109
|
2.985
|
| O.D. |
Wall |
Wt./Ft. |
|
"2-1/8 x 2-1/8" (2.125)
|
|
0.120
|
3.268
|
| O.D. |
Wall |
Wt./Ft. |
|
"2-1/8 x 2-1/8" (2.125)
|
|
0.134
|
3.624
|
| O.D. |
Wall |
Wt./Ft. |
|
"2.170 x 2.170" (2.170)
|
|
0.109
|
3.055
|
|
0.120
|
3.346
|
|
0.134
|
3.710
|
| O.D. |
Wall |
Wt./Ft. |
|
"2-1/4 x 2-1/4" (2.250)
|
|
0.065
|
1.932
|
|
0.083
|
2.446
|
|
0.095
|
2.784
|
|
0.109
|
3.174
|
|
0.120
|
3.476
|
|
0.188
|
5.272
|
|
0.250
|
6.800
|
| O.D. |
Wall |
Wt./Ft. |
|
"2-1/2 x 2-1/2" (2.500)
|
|
0.065
|
2.153
|
|
0.083
|
2.728
|
|
0.095
|
3.107
|
|
0.109
|
3.544
|
|
0.120
|
3.884
|
|
0.134
|
4.312
|
|
0.188
|
5.911
|
|
0.250
|
7.650
|
|
0.313
|
9.310
|
| O.D. |
Wall |
Wt./Ft. |
|
"3 x 3" (3.000)
|
|
0.065
|
2.595
|
|
0.083
|
3.293
|
|
0.095
|
3.753
|
|
0.109
|
4.286
|
|
0.120
|
4.700
|
|
0.134
|
5.223
|
|
0.188
|
7.190
|
|
0.250
|
9.350
|
|
0.313
|
11.438
|
|
0.375
|
13.388
|
| O.D. |
Wall |
Wt./Ft. |
|
"3-1/2 x 3-1/2" (3.500)
|
|
0.120
|
5.516
|
|
0.188
|
8.468
|
|
0.250
|
11.050
|
|
0.313
|
13.566
|
|
0.375
|
15.938
|
| O.D. |
Wall |
Wt./Ft. |
|
"4 x 4" (4.000)
|
|
0.083
|
4.422
|
|
0.109
|
5.768
|
|
0.120
|
6.332
|
|
0.134
|
7.045
|
|
0.188
|
9.747
|
|
0.250
|
12.750
|
|
0.313
|
15.695
|
|
0.375
|
18.488
|
|
0.500
|
23.800
|
| O.D. |
Wall |
Wt./Ft. |
|
"4-1/2 x 4-1/2" (4.500)
|
|
0.188
|
11.025
|
|
0.250
|
14.450
|
| O.D. |
Wall |
Wt./Ft. |
|
"5 x 5" (5.000)
|
|
0.120
|
7.964
|
|
0.188
|
12.303
|
|
0.250
|
16.150
|
|
0.313
|
19.952
|
|
0.375
|
23.588
|
|
0.500
|
30.600
|
| O.D. |
Wall |
Wt./Ft. |
|
"6 x 6" (6.000)
|
|
0.188
|
14.860
|
|
0.250
|
19.550
|
|
0.313
|
24.208
|
|
0.375
|
28.688
|
|
0.500
|
37.400
|
| O.D. |
Wall |
Wt./Ft. |
|
"7 x 7" (7.000)
|
|
0.188
|
17.417
|
|
0.250
|
22.950
|
|
0.313
|
28.465
|
|
0.375
|
33.788
|
|
0.500
|
44.200
|
| O.D. |
Wall |
Wt./Ft. |
|
"8 x 8" (8.000)
|
|
0.188
|
19.974
|
|
0.250
|
26.350
|
|
0.313
|
32.722
|
|
0.375
|
38.888
|
|
0.500
|
51.000
|
| O.D. |
Wall |
Wt./Ft. |
|
"10 x 10" (10.000)
|
|
0.188
|
25.087
|
|
0.250
|
33.150
|
|
0.313
|
41.236
|
|
0.375
|
49.088
|
|
0.500
|
64.600
|
| O.D. |
Wall |
Wt./Ft. |
|
"12 x 12" (12.000)
|
|
0.250
|
39.950
|
|
0.313
|
49.749
|
|
0.375
|
59.288
|
|
0.500
|
78.200
|
| O.D. |
Wall |
Wt./Ft. |
|
"14 x 14" (14.000)
|
|
0.313
|
58.263
|
|
0.375
|
69.488
|
|
0.500
|
91.800
|
| O.D. |
Wall |
Wt./Ft. |
|
"16 x 16" (16.000)
|
|
0.313
|
66.776
|
|
0.375
|
79.688
|
|
0.500
|
105.400
|
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CONVERSION CHARTS
If you need to figure out any conversions or equivalents, check out our Conversion Charts.
VIEW CONVERSIONS
Why Choose Aladdin Steel's Square Steel Tubing?
Aladdin Steel offers a variety of sizes, grades, and finishes to meet your specific needs. Partner with us for consistent delivery and exceptional customer service.