The document provides size ranges for square hollow section (SHS) steel tubes. It lists various dimensions including width, thickness, and coding for square hollow sections produced through different manufacturing methods, including painted, galvanized, and electric resistance welded (ERW) tubes. The sections can be produced in sizes ranging from 13x13mm to 300x300mm in width and thickness and in materials including steel, stainless steel, and aluminum. Tolerances for ERW tubes are also provided.

1. SHS (Square Hollow Section) Size range
Section type: round, square, rectangular, oval and other special section type.
Square Hollow Section (Painted)
Code Width (A) Thickness (T) Code Width (A) Thickness (T)
13x13x1.8 13 mm 1.8 mm 65x65x6.0 65 mm 6.0 mm
15x15x1.8 15 mm 1.8 mm 75x75x2.5 75 mm 2.5 mm
20x20x1.6 20 mm 1.6 mm 75x75x3.0 75 mm 3.0 mm
25x25x1.6 25 mm 1.6 mm 75x75x3.5 75 mm 3.5 mm
25x25x2.0 25 mm 2.0 mm 75x75x4.0 75 mm 4.0 mm
25x25x2.5 25 mm 2.5 mm 75x75x5.0 75 mm 5.0 mm
25x25x3.0 25 mm 3.0 mm 75x75x6.0 75 mm 6.0 mm
30x30x1.6 30 mm 1.6 mm 89x89x2.0 89 mm 2.0 mm
30x30x2.0 30 mm 2.0 mm 89x89x3.5 89 mm 3.5 mm
30x30x2.5 30 mm 2.5 mm 89x89x5.0 89 mm 5.0 mm
30x30x3.0 30 mm 3.0 mm 89x89x6.0 89 mm 6.0 mm
35x35x1.6 35 mm 1.6 mm 100x100x3.0 100 mm 3.0 mm
35x35x2.0 35 mm 2.0 mm 100x100x4.0 100 mm 4.0 mm
35x35x2.5 35 mm 2.5 mm 100x100x5.0 100 mm 5.0 mm
35x35x3.0 35 mm 3.0 mm 100x100x6.0 100 mm 6.0 mm
40x40x1.6 40 mm 1.6 mm 100x100x9.0 100 mm 9.0 mm
40x40x2.0 40 mm 2.0 mm 125x125x4.0 125 mm 4.0 mm
40x40x2.5 40 mm 2.5 mm 125x125x5.0 125 mm 5.0 mm
40x40x3.0 40 mm 3.0 mm 125x125x6.0 125 mm 6.0 mm
40x40x4.0 40 mm 4.0 mm 125x125x9.0 125 mm 9.0 mm
50x50x1.6 50 mm 1.6 mm 150x150x4.0 150 mm 4.0 mm
50x50x2.0 50 mm 2.0 mm 150x150x5.0 150 mm 5.0 mm
50x50x2.5 50 mm 2.5 mm 150x150x6.0 150 mm 6.0 mm
50x50x3.0 50 mm 3.0 mm 150x150x9.0 150 mm 9.0 mm
50x50x4.0 50 mm 4.0 mm 200x200x5.0 200 mm 5.0 mm
50x50x5.0 50 mm 5.0 mm 200x200x6.0 200 mm 6.0 mm
50x50x6.0 50 mm 6.0 mm 200x200x9.0 200 mm 9.0 mm
65x65x2.0 65 mm 2.0 mm 250x250x6.0 250 mm 6.0 mm
65x65x2.5 65 mm 2.5 mm 250x250x9.0 250 mm 9.0 mm
65x65x3.0 65 mm 3.0 mm 300x300x6.0 300 mm 6.0 mm
65x65x4.0 65 mm 4.0 mm 300x300x9.0 300 mm 9.0 mm
65x65x5.0 65 mm 5.0 mm 300x300x12.7 300 mm 12.7 mm
Add.: No. 273, Siping Road Tel:+8621 33780199
Shanghai, 200081, China Fax:+8621 5107 9722
Http://www.sunnysteel.com E-mail:sales@sunnysteel.com

2. SHS (Square Hollow Section) Size range
Section type: round, square, rectangular, oval and other special section type.
Square Hollow Section (Galvenised)
Code Width (A) Thickness (T) Code Width (A) Thickness (T)
20x20x1.6 20 mm 1.6 mm 65x65x4.0 65 mm 4.0 mm
25x25x1.6 25 mm 1.6 mm 65x65x5.0 65 mm 5.0 mm
25x25x2.0 25 mm 2.0 mm 75x75x2.0 75 mm 2.0 mm
25x25x2.5 25 mm 2.5 mm 75x75x2.5 75 mm 2.5 mm
25x25x3.0 25 mm 3.0 mm 75x75x3.0 75 mm 3.0 mm
30x30x1.6 30 mm 1.6 mm 75x75x3.5 75 mm 3.5 mm
30x30x2.0 30 mm 2.0 mm 75x75x4.0 75 mm 4.0 mm
35x35x1.6 35 mm 1.6 mm 75x75x5.0 75 mm 5.0 mm
35x35x2.0 35 mm 2.0 mm 89x89x2.0 89 mm 2.0 mm
35x35x2.5 35 mm 2.5 mm 89x89x3.5 89 mm 3.5 mm
35x35x3.0 35 mm 3.0 mm 89x89x5.0 89 mm 5.0 mm
40x40x1.6 40 mm 1.6 mm 100x100x2.5 100 mm 2.5 mm
40x40x2.0 40 mm 2.0 mm 100x100x3.0 100 mm 3.0 mm
40x40x2.5 40 mm 2.5 mm 100x100x4.0 100 mm 4.0 mm
40x40x3.0 40 mm 3.0 mm 100x100x5.0 100 mm 5.0 mm
40x40x4.0 40 mm 4.0 mm 125x125x4.0 125 mm 4.0 mm
50x50x1.6 50 mm 1.6 mm 125x125x5.0 125 mm 5.0 mm
50x50x2.0 50 mm 2.0 mm
50x50x2.5 50 mm 2.5 mm
50x50x3.0 50 mm 3.0 mm
50x50x4.0 50 mm 4.0 mm
50x50x5.0 50 mm 5.0 mm
65x65x2.0 65 mm 2.0 mm
65x65x2.5 65 mm 2.5 mm
65x65x3.0 65 mm 3.0 mm
Add.: No. 273, Siping Road Tel:+8621 33780199
Shanghai, 200081, China Fax:+8621 5107 9722
Http://www.sunnysteel.com E-mail:sales@sunnysteel.com

3. SHS (Square Hollow Section) Size range
Section type: round, square, rectangular, oval and other special section type.
Square Hollow Section (ERW)
Tolerances
Code Width (A) Thickness (T) Length +/- 50 MM
12.7x12.7x1.6 12.7 mm 1.6 mm Wall Thickness +/- 12.5%
16x16x1.2 16 mm 1.2 mm Weight +/- 8%
16x16x1.6 16 mm 1.6 mm
19x19x1.2 19 mm 1.2 mm Application
19x19x1.4 19 mm 1.4 mm
19x19x1.6 19 mm 1.6 mm
19x19x2.0 hrsb 19 mm 2.0 mm
22.2x22.2x1.2 22.2 mm 1.2 mm
22.2x22.2x1.4 22.2 mm 1.4 mm
22.2x22.2x1.6 22.2 mm 1.6 mm
25.4x25.4x1.2 25.4 mm 1.2 mm View Detail
25.4x25.4x1.4 25.4 mm 1.4 mm
25.4x25.4x1.6 25.4 mm 1.6 mm
31.8x31.8x1.2 31.8 mm 1.2 mm
31.8x31.8x1.6 31.8 mm 1.6 mm
38x38x1.6 38 mm 1.6 mm
45x45x1.6 45 mm 1.6 mm
50x50x1.6 50 mm 1.6 mm
Add.: No. 273, Siping Road Tel:+8621 33780199
Shanghai, 200081, China Fax:+8621 5107 9722
Http://www.sunnysteel.com E-mail:sales@sunnysteel.com
Furniture industries & domestic
applications, bus body, fencing etc.
Sizes other than mentioned above can
also be produced upon specific
requirements.

4. SHS (Square Hollow Section) Size range
Section type: round, square, rectangular, oval and other special section type.
Square Hollow Section (ERW Galvenised)
Code Width (A) Thickness (T)
12.7x12.7x1.2 12.7 mm 1.2 mm
16x16x1.2 16 mm 1.2 mm
16x16x1.6 16 mm 1.6 mm
19x19x1.2 19 mm 1.2 mm
19x19x1.4 19 mm 1.4 mm
19x19x1.6 19 mm 1.6 mm
19x19x2.0 hrsb 19 mm 2.0 mm
22.2x22.2x1.2 22.2 mm 1.2 mm
22.2x22.2x1.4 22.2 mm 1.4 mm
22.2x22.2x1.6 22.2 mm 1.6 mm
25.4x25.4x1.2 25.4 mm 1.2 mm
25.4x25.4x1.4 25.4 mm 1.4 mm
25.4x25.4x1.6 25.4 mm 1.6 mm
30x30x1.2 30 mm 1.2 mm
30x30x1.6 30 mm 1.6 mm
38x38x1.6 38 mm 1.6 mm
50x50x1.6 50 mm 1.6 mm
60x60x1.6 60 mm 1.6 mm
65x65x1.6 65 mm 1.6 mm
65x65x2.5 65 mm 2.5 mm
Square Hollow Section (ERW Black)
Code Width (A) Thickness (T)
25.4x25.4x1.6 25.4 mm 1.6 mm
25.4x25.4x2.0 25.4 mm 2.0 mm
30x30x1.6 30 mm 1.6 mm
31.8x31.8x2.5 31.8 mm 2.5 mm
35x35x1.6 35 mm 1.6 mm
38x38x1.6 38 mm 1.6 mm
38x38x2.0 38 mm 2.0 mm
38x38x2.5 38 mm 2.5 mm
50x50x2.0 50 mm 2.0 mm
50x50x2.5 50 mm 2.5 mm
65x65x2.0 65 mm 2.0 mm
Add.: No. 273, Siping Road Tel:+8621 33780199
Shanghai, 200081, China Fax:+8621 5107 9722
Http://www.sunnysteel.com E-mail:sales@sunnysteel.com