Description
Square Steel Tube Size:
Application: Widely used in furniture,interior decoration, structure
Size: OD: 10*10-1000*1000mm
Pipe Standard: GB/T 3094-2000, GB/T 6728-2002, DIN EN 10210, DIN EN 10219, GB/T 178-2005，ASTM A53, ASTM A500,BS EN 10219,JIS G 3466, ASTM A513, ASTM A36
S235JR,S355JR,St37,St37-2,St52,SS400, STK500
Furface: Black bared ,can be galvanized,oiled,painted,powdered.
Packing: Waterproof plastic bag,bundle with strip
Rectangular Hollow Section Steel Tube Size:
OD: 20mm*10mm ~ 400mm*300mm
Pipe Standard:ASTM A53, ASTM A500,BS EN 10219,JIS G 3466, ASTM A513, ASTM A36;S235JR,S355JR,Q235,St37,St37-2,St52,SS400, STK500,
Furface:Black bared ,can be galvanized,oiled,painted,powdered.
Packing:Waterproof plastic bag,bundle with strip
Application:Widely used in furniture,interior decoration, structure
Furface:Black bared ,can be galvanized,oiled,painted,powdered.
Packing:Waterproof plastic bag,bundle with strip
If you have any Inquiry, please don't hesitate to contact us immediately,Email:sales@union-steels.com
Specification
Square tubes sizes
|
Size (mm)
|
Wall Thickness (mm)
|
Size (mm)
|
Wall Thickness (mm)
|
|
20*20
|
1.2
|
70*70
60*80
100*40
|
1.8
|
|
1.3
|
2
|
|
1.4-1.5
|
2.2
|
|
1.7
|
2.3
|
|
1.8
|
2.5-4.0
|
|
2
|
4.5-5.0
|
|
2.2
|
5.5-5.75
|
|
2.3
|
75*75
60*90
100*50
|
1.8
|
|
2.5-2.75
|
2
|
|
25*25
20*30
|
1.2
|
2.2
|
|
1.3
|
2.3
|
|
1.5
|
2.5-4.0
|
|
1.7
|
4.5-5.0
|
|
1.8
|
5.5-5.75
|
|
2
|
80*80
100*60
100*80
120*60
|
2
|
|
2.3-2.3
|
2.2
|
|
2.5-3.0
|
2.3
|
|
30*30
30*40
25*40
20*40
|
1
|
2.5-4.0
|
|
1.2
|
4.5-5.0
|
|
1.3
|
5.5-5.75
|
|
1.5
|
7.5-7.75
|
|
1.7
|
100*100
120*80
|
2
|
|
1.8
|
2.2
|
|
2
|
2.3
|
|
2.2
|
2.5-5.0
|
|
2.3
|
5.5-5.75
|
|
2.5*2.75
|
7.5-7.75
|
|
3
|
120*120
140*80
150*100
160*80
|
2.5
|
|
40*40
30*50
25*50
|
1.2
|
2.75
|
|
1.3
|
3
|
|
1.4-1.5
|
3.25-5.0
|
|
1.7
|
5.5-7.0
|
|
1.8
|
7.5-7.75
|
|
2
|
140*140
150*150
200*100
|
3.5-4.0
|
|
2.2-2.3
|
4.5-5.0
|
|
2.5-4.0
|
5.25-7.0
|
|
50*50
60*40
30*60
40*50
|
1.5
|
7.5-7.75
|
|
1.7
|
160*160
180*180
|
3
|
|
1.8
|
3.5
|
|
2
|
3.75
|
|
2.2
|
4.0-5.0
|
|
2.3
|
5.25-5.75
|
|
2.5*-4.0
|
7.5-7.75
|
|
4.25-5.0
|
60*60
40*80
75*75
50*70
50*80
|
2.3
|
|
60*60
40*80
75*45
50*70
50*80
|
1.5
|
2.5-4.0
|
|
1.7
|
4.25-5.0
|
|
1.8
|
5.5-5.75
|
|
2
|
/
|
|
2.2-2.3
|
/
|
Rectangular Pipe sizes
|
Size (mm)
|
Wall Thickness (mm)
|
Size (mm)
|
Wall Thickness (mm)
|
|
20*20
|
1.2
|
70*70
60*80
100*40
|
1.8
|
|
1.3
|
2
|
|
1.4-1.5
|
2.2
|
|
1.7
|
2.3
|
|
1.8
|
2.5-4.0
|
|
2
|
4.5-5.0
|
|
2.2
|
5.5-5.75
|
|
2.3
|
75*75
60*90
100*50
|
1.8
|
|
2.5-2.75
|
2
|
|
25*25
20*30
|
1.2
|
2.2
|
|
1.3
|
2.3
|
|
1.5
|
2.5-4.0
|
|
1.7
|
4.5-5.0
|
|
1.8
|
5.5-5.75
|
|
2
|
80*80
100*60
100*80
120*60
|
2
|
|
2.3-2.3
|
2.2
|
|
2.5-3.0
|
2.3
|
|
30*30
30*40
25*40
20*40
|
1
|
2.5-4.0
|
|
1.2
|
4.5-5.0
|
|
1.3
|
5.5-5.75
|
|
1.5
|
7.5-7.75
|
|
1.7
|
100*100
120*80
|
2
|
|
1.8
|
2.2
|
|
2
|
2.3
|
|
2.2
|
2.5-5.0
|
|
2.3
|
5.5-5.75
|
|
2.5*2.75
|
7.5-7.75
|
|
3
|
120*120
140*80
150*100
160*80
|
2.5
|
|
40*40
30*50
25*50
|
1.2
|
2.75
|
|
1.3
|
3
|
|
1.4-1.5
|
3.25-5.0
|
|
1.7
|
5.5-7.0
|
|
1.8
|
7.5-7.75
|
|
2
|
140*140
150*150
200*100
|
3.5-4.0
|
|
2.2-2.3
|
4.5-5.0
|
|
2.5-4.0
|
5.25-7.0
|
|
50*50
60*40
30*60
40*50
|
1.5
|
7.5-7.75
|
|
1.7
|
160*160
180*180
|
3
|
|
1.8
|
3.5
|
|
2
|
3.75
|
|
2.2
|
4.0-5.0
|
|
2.3
|
5.25-5.75
|
|
2.5*-4.0
|
7.5-7.75
|
|
4.25-5.0
|
60*60
40*80
75*75
50*70
50*80
|
2.3
|
|
60*60
40*80
75*45
50*70
50*80
|
1.5
|
2.5-4.0
|
|
1.7
|
4.25-5.0
|
|
1.8
|
5.5-5.75
|
|
2
|
/
|
|
2.2-2.3
|
/
|
Standard
Square Steel Tube
Square Steel Tube Standard Corner Radius(Structural Sizes:)
Max. 3 x Nominal Wall Thickness
|
Mechanical Sizes
|
Structural Sizes
|
|
Largest Nominal Outside Dimension
|
Outside Tolerance at all Sides at Corners
|
Largest Nominal Outside Dimension
|
Outside Tolerance at all Sides at Corners
|
|
3/16 to 5/8
|
± 0.004
|
2 1/2 and under
|
± 0.020
|
|
over 5/8 to 1 1/8
|
± 0.005
|
over 2 1/2 to 3 1/2
|
± 0.020
|
|
over 1 1/8 to 1 1/2
|
± 0.006
|
over 3 1/2 to 5 1/2
|
± 0.030
|
|
over 1 1/2 to 2
|
± 0.008
|
over 5 1/2
|
± 1%
|
|
over 2 to 3
|
± 0.010
|
|
|
|
over 3 to 4
|
± 0.020
|
|
|
|
over 4 to 6
|
± 0.020
|
|
|
|
over 6 to 8
|
± 0.025
|
|
|
Straightness
Mechanical Sizes: Max. 1/16″ in 3 feet
Structural Sizes: Max. 1/8″ x Number of feet of total length divided by 5
Wall Thickness
Mechanical & Structural Sizes: ± 10% of Nominal Wall Thickness
Squareness of Sides
Mechanical Sizes: Max: ± b = c x 0.006″
b = Tolerance for out-of-square
c = Largest external dimension across flats
Structural Sizes: Adjacent sides may deviate from 90 ° by ± 2 °
Maximum Twist (Mechanical & Structural Sizes)
|
Largest Dimension, inches
|
Max. Twist*, inches
|
|
over 1/2 to 1 1/2
|
0.050
|
|
over 1 1/2 to 2 1/2
|
0.062
|
|
over 2 1/2 to 4
|
0.075
|
|
over 4 to 6
|
0.087
|
|
over 4 to 8
|
0.100
|
Convexity & Concavity(Mechanical & Structural Sizes)
|
Largest Nominal O.D., Inches
|
Tolerance ± Inches
|
|
2 1/2 and under
|
± 0.010
|
|
over 2 1/2 to 4
|
± 0.015
|
|
over 4 to 8
|
± 0.025
|
Structural Tubing A 500 Requirements
|
Grades
|
Chemical
|
Physical
|
|
C Max. %
|
Mn Max. %
|
P Max. %
|
S Max. %
|
Cu Max. %
|
Tensile strength, min. psi
|
Yield strength, min. psi
|
Elongation in 2 in.
|
|
Grade B
|
0.26
|
/
|
0.04
|
0.05
|
0.20
|
58,000
|
46,000
|
23
|
|
Grade C
|
0.23
|
1.35
|
0.04
|
0.05
|
0.20
|
62,000
|
50,000
|
21
|
Rectangular Pipe Standard Corner Radius(Structural Sizes:)
Max. 3 x Nominal Wall Thickness
|
Mechanical Sizes
|
Structural Sizes
|
|
Largest Nominal Outside Dimension
|
Outside Tolerance at all Sides at Corners
|
Largest Nominal Outside Dimension
|
Outside Tolerance at all Sides at Corners
|
|
3/16 to 5/8
|
± 0.004
|
2 1/2 and under
|
± 0.020
|
|
over 5/8 to 1 1/8
|
± 0.005
|
over 2 1/2 to 3 1/2
|
± 0.020
|
|
over 1 1/8 to 1 1/2
|
± 0.006
|
over 3 1/2 to 5 1/2
|
± 0.030
|
|
over 1 1/2 to 2
|
± 0.008
|
over 5 1/2
|
± 1%
|
|
over 2 to 3
|
± 0.010
|
|
|
|
over 3 to 4
|
± 0.020
|
|
|
|
over 4 to 6
|
± 0.020
|
|
|
|
over 6 to 8
|
± 0.025
|
|
|
Straightness
Mechanical Sizes: Max. 1/16″ in 3 feet
Structural Sizes: Max. 1/8″ x Number of feet of total length divided by 5
Wall Thickness
Mechanical & Structural Sizes: ± 10% of Nominal Wall Thickness
Squareness of Sides
Mechanical Sizes: Max: ± b = c x 0.006″
b = Tolerance for out-of-square
c = Largest external dimension across flats
Structural Sizes: Adjacent sides may deviate from 90 ° by ± 2 °
Maximum Twist (Mechanical & Structural Sizes)
|
Largest Dimension, inches
|
Max. Twist*, inches
|
|
over 1/2 to 1 1/2
|
0.050
|
|
over 1 1/2 to 2 1/2
|
0.062
|
|
over 2 1/2 to 4
|
0.075
|
|
over 4 to 6
|
0.087
|
|
over 4 to 8
|
0.100
|
Convexity & Concavity(Mechanical & Structural Sizes)
|
Largest Nominal O.D., Inches
|
Tolerance ± Inches
|
|
2 1/2 and under
|
± 0.010
|
|
over 2 1/2 to 4
|
± 0.015
|
|
over 4 to 8
|
± 0.025
|
Structural Tubing A 500 Requirements
|
Grades
|
Chemical
|
Physical
|
|
C Max. %
|
Mn Max. %
|
P Max. %
|
S Max. %
|
Cu Max. %
|
Tensile strength, min. psi
|
Yield strength, min. psi
|
Elongation in 2 in.
|
|
B
|
0.26
|
/
|
0.04
|
0.05
|
0.20
|
58,000
|
46,000
|
23
|
|
C
|
0.23
|
1.35
|
0.04
|
0.05
|
0.20
|
62,000
|
50,000
|
21
|
Process
Manufacture Process
Packing
Standard
Square Steel Tube
Square Steel Tube Standard Corner Radius(Structural Sizes:)
Max. 3 x Nominal Wall Thickness
|
Mechanical Sizes
|
Structural Sizes
|
|
Largest Nominal Outside Dimension
|
Outside Tolerance at all Sides at Corners
|
Largest Nominal Outside Dimension
|
Outside Tolerance at all Sides at Corners
|
|
3/16 to 5/8
|
± 0.004
|
2 1/2 and under
|
± 0.020
|
|
over 5/8 to 1 1/8
|
± 0.005
|
over 2 1/2 to 3 1/2
|
± 0.020
|
|
over 1 1/8 to 1 1/2
|
± 0.006
|
over 3 1/2 to 5 1/2
|
± 0.030
|
|
over 1 1/2 to 2
|
± 0.008
|
over 5 1/2
|
± 1%
|
|
over 2 to 3
|
± 0.010
|
|
|
|
over 3 to 4
|
± 0.020
|
|
|
|
over 4 to 6
|
± 0.020
|
|
|
|
over 6 to 8
|
± 0.025
|
|
|
Straightness
Mechanical Sizes: Max. 1/16″ in 3 feet
Structural Sizes: Max. 1/8″ x Number of feet of total length divided by 5
Wall Thickness
Mechanical & Structural Sizes: ± 10% of Nominal Wall Thickness
Squareness of Sides
Mechanical Sizes: Max: ± b = c x 0.006″
b = Tolerance for out-of-square
c = Largest external dimension across flats
Structural Sizes: Adjacent sides may deviate from 90 ° by ± 2 °
Maximum Twist (Mechanical & Structural Sizes)
|
Largest Dimension, inches
|
Max. Twist*, inches
|
|
over 1/2 to 1 1/2
|
0.050
|
|
over 1 1/2 to 2 1/2
|
0.062
|
|
over 2 1/2 to 4
|
0.075
|
|
over 4 to 6
|
0.087
|
|
over 4 to 8
|
0.100
|
Convexity & Concavity(Mechanical & Structural Sizes)
|
Largest Nominal O.D., Inches
|
Tolerance ± Inches
|
|
2 1/2 and under
|
± 0.010
|
|
over 2 1/2 to 4
|
± 0.015
|
|
over 4 to 8
|
± 0.025
|
Structural Tubing A 500 Requirements
|
Grades
|
Chemical
|
Physical
|
|
C Max. %
|
Mn Max. %
|
P Max. %
|
S Max. %
|
Cu Max. %
|
Tensile strength, min. psi
|
Yield strength, min. psi
|
Elongation in 2 in.
|
|
Grade B
|
0.26
|
/
|
0.04
|
0.05
|
0.20
|
58,000
|
46,000
|
23
|
|
Grade C
|
0.23
|
1.35
|
0.04
|
0.05
|
0.20
|
62,000
|
50,000
|
21
|
Rectangular Pipe Standard Corner Radius(Structural Sizes:)
Max. 3 x Nominal Wall Thickness
|
Mechanical Sizes
|
Structural Sizes
|
|
Largest Nominal Outside Dimension
|
Outside Tolerance at all Sides at Corners
|
Largest Nominal Outside Dimension
|
Outside Tolerance at all Sides at Corners
|
|
3/16 to 5/8
|
± 0.004
|
2 1/2 and under
|
± 0.020
|
|
over 5/8 to 1 1/8
|
± 0.005
|
over 2 1/2 to 3 1/2
|
± 0.020
|
|
over 1 1/8 to 1 1/2
|
± 0.006
|
over 3 1/2 to 5 1/2
|
± 0.030
|
|
over 1 1/2 to 2
|
± 0.008
|
over 5 1/2
|
± 1%
|
|
over 2 to 3
|
± 0.010
|
|
|
|
over 3 to 4
|
± 0.020
|
|
|
|
over 4 to 6
|
± 0.020
|
|
|
|
over 6 to 8
|
± 0.025
|
|
|
Straightness
Mechanical Sizes: Max. 1/16″ in 3 feet
Structural Sizes: Max. 1/8″ x Number of feet of total length divided by 5
Wall Thickness
Mechanical & Structural Sizes: ± 10% of Nominal Wall Thickness
Squareness of Sides
Mechanical Sizes: Max: ± b = c x 0.006″
b = Tolerance for out-of-square
c = Largest external dimension across flats
Structural Sizes: Adjacent sides may deviate from 90 ° by ± 2 °
Maximum Twist (Mechanical & Structural Sizes)
|
Largest Dimension, inches
|
Max. Twist*, inches
|
|
over 1/2 to 1 1/2
|
0.050
|
|
over 1 1/2 to 2 1/2
|
0.062
|
|
over 2 1/2 to 4
|
0.075
|
|
over 4 to 6
|
0.087
|
|
over 4 to 8
|
0.100
|
Convexity & Concavity(Mechanical & Structural Sizes)
|
Largest Nominal O.D., Inches
|
Tolerance ± Inches
|
|
2 1/2 and under
|
± 0.010
|
|
over 2 1/2 to 4
|
± 0.015
|
|
over 4 to 8
|
± 0.025
|
Structural Tubing A 500 Requirements
|
Grades
|
Chemical
|
Physical
|
|
C Max. %
|
Mn Max. %
|
P Max. %
|
S Max. %
|
Cu Max. %
|
Tensile strength, min. psi
|
Yield strength, min. psi
|
Elongation in 2 in.
|
|
B
|
0.26
|
/
|
0.04
|
0.05
|
0.20
|
58,000
|
46,000
|
23
|
|
C
|
0.23
|
1.35
|
0.04
|
0.05
|
0.20
|
62,000
|
50,000
|
21
|
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