Flats

Flats

Structural Steel Flat Bars are hot rolled mild steel that ideal for all structural applications, general fabrication and repair. Steel Flats is easy to cut, weld, form and machine. Steel flat may be galvanized for outdoor applications. Steel Flat is measured by thickness and width.

Standard lengths 20'
Grade ASTM A569 slit, leveled and deburred 1/8" and 3/16" thickness
Grades ASTM A-36 / ASTM A-52950 / ASTM A-57250 mill bar 1/4" and thicker

Thickness:

Thickness Width Lbs. per Ft.
1/8" 1/2" 0.213
3/4" 0.319
1" 0.425
1-1/4" 0.531
1-1/2" 0.638
2" 0.850
2-1/2" 1.063
3" 1.275
4" 1.700
4-1/2" 1.913
5 " 2.125
6" 2.550
7" 2.975
8" 3.400
10" 4.250
12" 5.100
Thickness Width Lbs. per Ft.
3/16" 1/2" 0.319
3/4" 0.479
1" 0.638
1-1/4" 0.797
1-1/2" 0.956
1-3/4" 1.116
2" 1.276
2-1/2" 1.594
3" 1.913
3-1/2" 2.231
4" 2.550
5" 3.188
6" 3.825
7" 4.463
8" 5.100
10" 6.375
12" 7.650
Thickness Width Lbs. per Ft.
1/4" 1/2" 0.425
3/4" 0.531
1 " 0.850
1-1/4" 1.063
1-1/2" 1.275
2" 1.700
2-1/2" 2.125
3 " 2.550
3-1/2" 2.975
4" 3.400
4-1/2" 3.825
5" 4.250
5-1/2" 4.675
6" 5.100
7" 5.950
8" 6.800
9" 7.650
10" 8.500
11" 9.350
12" 10.200
Thickness Width Lbs. per Ft.
3/8" 1" 1.275
1-1/4" 1.594
1-1/2" 1.913
1-3/4" 2.231
2" 2.550
2-1/2" 3.188
3" 3.825
3-1/2" 4.463
4" 5.100
4-1/2" 5.738
5" 6.375
5-1/2" 7.013
6" 7.650
7" 8.925
8" 10.200
9" 11.480
10" 12.750
11" 14.030
12" 15.300
Thickness Width Lbs. per Ft.
1/2" 3/4" 1.275
1" 1.700
1-1/2" 2.550
2" 3.400
2-1/2" 4.122
3" 5.100
3-1/2" 5.950
4" 6.800
4-1/2" 7.650
5" 8.500
5-1/2" 9.350
6" 10.200
7" 11.900
8" 13.600
9" 15.300
10" 17.000
11" 18.700
12" 20.400
Thickness Width Lbs. per Ft.
5/8" 2" 4.250
4" 8.500
6" 12.750
8" 17.000
10" 21.250
12" 25.500
Thickness Width Lbs. per Ft.
3/4" 1" 2.550
1-1/2" 3.825
2" 5.100
3" 7.650
4" 10.200
5" 12.750
6" 15.300
7" 17.850
8" 20.400
9" 22.950
10" 25.500
11" 28.050
12" 30.600
Thickness Width Lbs. per Ft.
1" 2" 6.800
3" 10.200
4" 13.600
5" 17.000
6" 20.400
7" 23.800
8" 27.200
10" 34.000
12" 40.800