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We are committed to providing one-stop service for steel pipe products to customers around the world.
Rectangular tubes are formed from coils and then ran through a series of dies. They are are welded from the inside to form their shape. Rectangular tubes are generally used for maintenance and structural purposes.
For mechanical and structural applications, rectangular hollow sections (RHS) are popular. This is because the flat surface makes it a more economical structural solution for joining and different types of manufacturing work. For soldering or joining, RHS requires minimal edge preparation. Because of the rectangular shape of this type of hollow section, parts only need to be cut straight when joining to other flat surfaces.
|
SIZE mm |
WEIGHT kg/m |
EST. LBS. PER FT. |
|
SIZE mm |
WEIGHT kg/m |
|
|
EST. LBS. PER FT. |
||||||
|
40 x 20 x 1.60 |
1.380 |
0.93 |
|
150 x 100 x 6.30 |
22.400 |
15.08 |
|
40 x 20 x 2.60 |
2.100 |
1.41 |
|
150 x 100 x 8.00 |
27.700 |
18.64 |
|
50 x 30 x 1.60 |
1.880 |
1.27 |
|
150 x 100 x 10.00 |
35.714 |
24.04 |
|
50 x 30 x 2.60 |
2.920 |
1.97 |
|
160 x 80 x 3.20 |
11.500 |
7.74 |
|
50 x 30 x 2.90 |
3.320 |
2.23 |
|
160 x 80 x 4.00 |
14.300 |
9.62 |
|
50 x 30 x 3.20 |
3.490 |
2.35 |
|
160 x 80 x 5.00 |
17.400 |
11.71 |
|
50 x 30 x 4.00 |
4.410 |
2.97 |
|
160 x 80 x 6.30 |
21.400 |
14.40 |
|
60 x 40 x 2.60 |
3.730 |
2.51 |
|
160 x 80 x 8.00 |
26.400 |
17.77 |
|
60 x 40 x 2.90 |
4.230 |
2.85 |
|
160 x 80 x 10.00 |
32.545 |
21.87 |
|
60 x 40 x 3.20 |
4.500 |
3.03 |
|
160 x 90 x 4.50 |
16.600 |
11.17 |
|
60 x 40 x 4.00 |
5.670 |
3.82 |
|
160 x 90 x 5.60 |
20.400 |
13.73 |
|
70 x 40 x 2.90 |
4.690 |
3.16 |
|
160 x 90 x 7.10 |
25.300 |
17.03 |
|
70 x 40 x 4.00 |
6.300 |
4.24 |
|
160 x 90 x 8.80 |
30.500 |
20.53 |
|
80 x 40 x 2.60 |
4.550 |
3.06 |
|
160 x 90 x 10.00 |
34.100 |
22.95 |
|
80 x 40 x 2.90 |
5.140 |
3.46 |
|
180 x 100 x 4.00 |
16.800 |
11.31 |
|
80 x 40 x 3.20 |
5.500 |
3.70 |
|
180 x 100 x 5.00 |
20.500 |
13.80 |
|
80 x 40 x 4.00 |
6.930 |
4.66 |
|
180 x 100 x 5.60 |
23.000 |
15.48 |
|
80 x 40 x 5.00 |
8.470 |
5.70 |
|
180 x 100 x 6.30 |
25.400 |
17.09 |
|
80 x 40 x 6.30 |
10.400 |
7.00 |
|
180 x 100 x 7.10 |
28.600 |
19.25 |
|
90 x 50 x 2.60 |
5.370 |
3.61 |
|
180 x 100 x 8.80 |
34.700 |
23.35 |
|
90 x 50 x 3.20 |
6.640 |
4.47 |
|
180 x 100 x 10.00 |
38.800 |
26.11 |
|
90 x 50 x 4.00 |
8.180 |
5.51 |
|
180 x 100 x 12.50 |
46.900 |
31.56 |
|
90 x 50 x 5.00 |
10.000 |
6.73 |
|
200 x 100 x 4.00 |
18.000 |
12.11 |
|
90 x 50 x 6.30 |
12.300 |
8.28 |
|
200 x 100 x 5.00 |
22.100 |
14.20 |
|
90 x 50 x 7.10 |
13.700 |
9.22 |
|
200 x 100 x 6.30 |
27.400 |
18.44 |
|
100 x 50 x 3.60 |
7.980 |
5.37 |
|
200 x 100 x 8.00 |
34.000 |
22.88 |
|
100 x 50 x 4.50 |
9.830 |
6.62 |
|
200 x 100 x 10.00 |
40.600 |
27.32 |
|
100 x 50 x 5.60 |
12.000 |
8.08 |
|
200 x 120 x 4.00 |
19.300 |
12.99 |
|
100 x 50 x 7.10 |
14.800 |
9.96 |
|
200 x 120 x 5.00 |
23.700 |
15.95 |
|
100 x 50 x 8.00 |
16.400 |
11.04 |
|
200 x 120 x 6.30 |
29.600 |
19.92 |
|
100 x 60 x 3.20 |
7.510 |
5.05 |
|
200 x 120 x 8.00 |
36.500 |
24.56 |
|
100 x 60 x 3.60 |
8.550 |
5.75 |
|
200 x 120 x 8.80 |
36.900 |
24.83 |
|
100 x 60 x 4.50 |
10.500 |
7.07 |
|
200 x 120 x 10.00 |
45.100 |
31.62 |
|
100 x 60 x 5.60 |
12.900 |
8.68 |
|
200 x 120 x 12.50 |
54.700 |
38.87 |
|
100 x 60 x 6.30 |
13.500 |
9.09 |
|
200 x 120 x 14.20 |
60.900 |
43.64 |
|
100 x 60 x 7.10 |
15.900 |
10.70 |
|
220 x 80 x 6.00 |
26.816 |
18.02 |
|
100 x 60 x 8.80 |
19.200 |
12.92 |
|
220 x 120 x 6.30 |
31.600 |
21.27 |
|
100 x 80 x 6.3 |
16.370 |
11.02 |
|
220 x 120 x 8.00 |
39.400 |
26.52 |
|
110 x 60 x 3.60 |
9.050 |
6.09 |
|
220 x 120 x 10.00 |
46.200 |
31.09 |
|
110 x 60 x 4.50 |
11.100 |
7.47 |
|
220 x 120 x 12.50 |
58.700 |
39.51 |
|
110 x 60 x 5.60 |
13.600 |
9.15 |
|
220 x 120 x 14.20 |
65.400 |
44.01 |
|
110 x 60 x 7.10 |
16.800 |
11.31 |
|
250 x 150 x 5.00 |
29.900 |
20.12 |
|
110 x 60 x 8.80 |
20.100 |
13.53 |
|
250 x 150 x 6.30 |
37.300 |
25.10 |
|
110 x 70 x 3.20 |
8.510 |
5.73 |
|
250 x 150 x 8.00 |
46.500 |
31.29 |
|
110 x 70 x 4.00 |
10.800 |
7.27 |
|
250 x 150 x 10.00 |
56.300 |
37.89 |
|
110 x 70 x 5.00 |
12.700 |
8.55 |
|
250 x 150 x 12.50 |
68.300 |
45.97 |
|
110 x 70 x 6.30 |
15.500 |
10.43 |
|
260 x 140 x 6.30 |
37.500 |
25.23 |
|
120 x 60 x 3.20 |
8.510 |
5.73 |
|
260 x 140 x 8.00 |
46.900 |
31.56 |
|
120 x 60 x 4.00 |
10.600 |
7.13 |
|
260 x 140 x 10.00 |
57.600 |
38.76 |
|
120 x 60 x 5.00 |
13.000 |
8.75 |
|
260 x 140 x 12.50 |
70.400 |
47.38 |
|
120 x 60 x 6.30 |
16.100 |
10.84 |
|
260 x 140 x 14.20 |
78.800 |
53.03 |
|
120 x 60 x 7.10 |
17.900 |
12.05 |
|
260 x 180 x 6.30 |
41.500 |
27.93 |
|
120 x 60 x 8.80 |
21.500 |
14.47 |
|
260 x 180 x 8.00 |
52.000 |
35.00 |
|
120 x 80 x 3.20 |
12.100 |
8.14 |
|
260 x 180 x 10.00 |
63.900 |
43.00 |
|
120 x 80 x 6.30 |
17.500 |
11.78 |
|
260 x 180 x 12.50 |
78.300 |
52.70 |
|
140 x 70 x 4.00 |
12.500 |
8.41 |
|
260 x 180 x 14.20 |
87.700 |
59.02 |
|
140 x 70 x 5.00 |
15.400 |
10.36 |
|
300 x 100 x 5.00 |
30.268 |
20.34 |
|
140 x 70 x 6.30 |
19.000 |
12.79 |
|
300 x 100 x 8.00 |
47.679 |
32.04 |
|
140 x 70 x 7.10 |
21.200 |
14.27 |
|
300 x 100 x 10.00 |
58.979 |
39.63 |
|
140 x 70 x 8.80 |
25.600 |
17.23 |
|
300 x 200 x 5.00 |
37.800 |
25.44 |
|
140 x 80 x 3.20 |
10.500 |
7.07 |
|
300 x 200 x 6.30 |
47.100 |
31.70 |
|
140 x 80 x 4.00 |
13.100 |
8.82 |
|
300 x 200 x 8.00 |
59.100 |
39.77 |
|
140 x 80 x 5.00 |
16.200 |
10.90 |
|
300 x 200 x 10.00 |
72.000 |
48.46 |
|
140 x 80 x 6.30 |
20.000 |
13.46 |
|
300 x 200 x 12.00 |
88.000 |
59.22 |
|
140 x 80 x 8.00 |
24.800 |
16.69 |
|
|
|
|
|
140 x 80 x 10.00 |
30.200 |
20.32 |
|
|
|
|
|
150 x 100 x 3.20 |
12.000 |
8.08 |
|
|
|
|
|
150 x 100 x 4.00 |
14.900 |
10.03 |
|
|
|
|
Dimensional Tolerances
Dimensional Tolerances
Outside Diameter:
Twist:
Maximum twist per 3 feet of length
Largest outside dimension
Outside tolerance including convexity and concavity
Longest outside dimension
up to 2 1/2"
±.020"
2" to 2 1/2"inclusive
.062"
over 21/2" to 31/2" inclusive
±.025"
over 21/2" to 4" inclusive
.075"
over 31/2" to 51/2" inclusive
±.030"
over 4" to 6" inclusive
.087"
over 51/2"
±1%
over 6" to 8" inclusive
100"
Tolerances include allowance for convexity or concavity. For
over 8"
112"
Straightness:
.125" x (total length) ÷ 5
Wall Thickness:
Squareness of Sides:
Maximum allowable variation
±10%
Adjacent sides may deviate from 90° by a tolerance of plus or minus 2 degrees maximum.
(wall thickness is to be measured at the center of the flat, exclusive
Worner Radii:
Flash:
The radius of any outside corner shal not exceed three times
Structural tubing usually is supplied flash-in. The height of the
rectangular sections, the tolerance calculated for the larger flat
dimension shall also apply to the smaller flat dimension. This
tolerance may be increased 50 percent when applied to the
smaller dimension, if the ratio of cross sectional dimension
is between 1.5 and 3, and 100 percent when the ratio exceeds 3.
Permissable variation shall be 1/8" times the number of feet of total length divided by 5:
of the weld area, and not at the corners)
the specified wall thickness
flash will vary with the wall thickness of the tube.
ASTM A500 Grade B,
ASTM A513 (1020-1026)
ASTM A36 (A36)
EN 10210:S235,S355,S235JRH,
S355J2H,S355NH
EN 10219:S235,S355,S235JRH,
S275J0H, S275J2H, S355J0H, S355J2H
ASTM A500 Cold Formed Welded and Seamless Carbon Steel Steel Structural Tubing in Round and Shapes
|
|
Chemistry-Ladle Analysis |
|||
|
Carbon |
Manganese |
Phosporous |
Sulfur |
|
|
A501 (A36) |
0.26% max |
- |
0.04% max |
0.05% max |
|
A500A |
0.26% max |
- |
0.04% max |
0.05% max |
|
A500B |
0.26% max |
- |
0.04% max |
0.05% max |
|
A500C |
0.23% max |
1.35% max |
0.04% max |
0.05% max |
|
Copper, when copper steel is specified, 0.20% minimum. |
||||
|
Mechanical Properties |
||||
|
Grade Designation |
Grade |
Tensile Strength |
Yield Strength Minimum |
Elongation In 2 Inches Minimum |
|
Condition |
Minimum |
|||
|
A501 (A36) |
Hot Formed |
58,000 psi |
36,000 psi |
23% |
|
A500A |
Cold Formed |
45,000 psi |
39,000 psi |
25% |
|
A500B |
Cold Formed |
58,000 psi |
46,000 psi |
23% |
|
A500C |
Cold Formed |
62,000 psi |
50,000 psi |
21% |
Chemical composition
Steel Grade: Q195, Q215, Q235, Q345, S235JR, S275JR, SS4007
|
Data |
Elements（%） |
||||
|
Materal Grade |
C |
Mn |
S |
P |
Si |
|
Q195 |
0.06-0.12 |
0.25-0.50 |
<0.05 |
<0.045 |
<0.30 |
|
Q215 |
0.09-0.15 |
0.25-0.55 |
<0.05 |
<0.045 |
<0.30 |
|
Q235 |
0.12-0.20 |
0.30-0.70 |
<0.045 |
<0.045 |
<0.30 |
|
Q345 |
<0.20 |
1.0-1.6 |
<0.04 |
<0.04 |
<0.55 |
Mechanical property
|
Materal Grade |
Yield point (Mpa) |
Tensile Strength (Mpa) |
Elongation(%) |
|
Q195 |
>195 |
315-430 |
32-33 |
|
Q215 |
>215 |
335-450 |
26-31 |
|
Q235 |
>235 |
375-500 |
24-26 |
|
Q345 |
>345 |
470-630 |
21-22 |
Tolerance:
|
Length |
+/- 50 MM |
|
Wall Thickness |
+/- 12.5% |
|
Weight |
+/- 8% |
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