Square and Rectangular Industrial Steel Tubes | with and without seam

Seam square steel pipe factory

Square and Rectangular Industrial Steel Tubes | with and without seam are used for various purposes and segments such as: automotive, agriculture, photovoltaic plants, fitness, civil construction, furniture, heat exchangers, conduction tubes, among others.

In 2012, Golin inaugurated a new unit in São João da Boa Vista (SP) dedicated to the manufacture of seamed carbon steel tubes.

Installed in an area of ​​68,000m2, the industrial field has 8,800m2 of built area and has the most advanced technological set for forming tubes. In addition to an efficient quality and logistics system to meet the expectations of its customers in an ethical and responsible manner with society and the environment, for this we have:

  • NBR ISO 9001 certification;
  • IATF certification;
  • A modern industrial plant;
  • Advanced technological set for forming tubes;
  • Automated lighting system;
  • Four transformers aimed at reducing energy consumption;
  • Conscientious disposal of waste;
  • Treatment of all water used in the industrial process, among other measures adopted;

Most common norms

NBR 8261 | NBR 6591
DIN EN 10.305-3 (former DIN 2394)
ASTM A 500
Upon request, we can meet other standards.

T01 – Length

Tubes can be supplied in fixed lengths, with up to 5% of short tubes coming from the manufacturing process with the following tolerances:

Manufacturing length (mm)Tolerance
From 4000 up to 8000+20 -0
From 8001 to 12,500*+50 -0

*Length on request

Seam square steel pipe factory

T02 – Thickness table for square profiles

Thickness in mm
Profile1.501.902.002.252.653.003.353.754.254.755.005.305.606.35
40×401.822.292.412.693.153.543.924.354.885.395.655.956.246.96
50×503.033.403.984.484.975.536.216.887.217.618.008.95
50.8×50.83.033.403.984.484.975.536.216.887.217.618.008.95
60×603.664.104.815.426.026.707.548.378.789.279.7510.94
63.5×63.53.664.104.815.426.026.707.548.378.789.279.7510.94
70×704.294.815.646.367.077.878.879.8610.3510.9311.5012.93
75×754.605.166.056.837.598.469.5410.6011.1311.7612.3813.92
76.2×76.24.605.166.056.837.598.469.5410.6011.1311.7612.3813.92
80×805.516.477.298.129.0510.2011.3511.9112.5913.2614.92
90×906.227.308.239.1710.2211.5312.8313.4814.2515.0116.91
100×1006.928.139.1710.2211.4012.8714.3215.0415.9116.7718.89
101.6×101.66.928.139.1710.2211.4012.8714.3215.0415.9116.7718.89

T03 – Table of thicknesses for rectangular profiles

Thickness in mm
Profile1.501.902.002.252.653.003.353.754.254.755.005.305.606.35
30×401.511.891.982.222.582.903.213.563.984.39
30×501.822.292.412.693.153.543.924.354.885.39
30×702.182.742.883.223.774.244.705.235.876.51
40×602.883.223.774.244.705.235.876.516.827.197.558.45
40×703.353.764.404.965.516.136.897.648.018.468.899.97
40×803.664.104.815.426.026.707.548.378.789.279.7510.94
40×1004.294.815.646.367.077.878.879.8610.3510.9311.5012.93
45×754.104.815.426.026.707.548.378.789.279.7510.94
50×704.104.815.426.026.707.548.378.789.279.7510.94
50×904.815.646.367.077.878.879.8610.3510.9311.5012.93
50×1005.166.056.837.598.469.5410.6011.1311.7612.3813.92
50×1105.516.477.298.129.0510.2011.3511.9112.5913.2614.92
50.8×76.24.104.815.426.026.707.548.378.789.279.7510.94
50.8×101.65.166.056.837.598.469.5410.6011.1311.7612.3813.92
60×804.815.646.367.077.878.879.8610.3510.9311.5012.93
60×905.166.056.837.598.469.5410.6011.1311.7612.3813.92
60×1005.516.477.298.129.0510.2011.3511.9112.5913.2614.92
60×1206.227.308.239.1710.2211.5312.8313.4814.2515.0116.91
63.5x 6.24.815.646.367.077.878.879.8610.3510.9311.5012.93
63.5×88.95.166.056.837.598.469.5410.6011.1311.7612.3813.92
70×805.166.056.837.598.469.5410.6011.1311.7612.3813.92
70×906.477.298.129.0510.2011.3511.9112.5913.2614.92
70×1107.308.239.1710.2211.5312.8313.4814.2515.0116.91
75×1107.308.239.1710.2211.5312.8313.4814.2515.0116.91
76.2×101.67.308.239.1710.2211.5312.8313.4814.2515.0116.91
80×1007.308.239.1710.2211.5312.8313.4814.2515.0116.91
80×1208.139.1710.2211.4012.8714.3215.0415.9116.7718.89
100×1108.139.1710.2211.4012.8714.3215.0415.9116.7718.89

Golin is the most complete solution

Golin unit in São João da Boa Vista focused on manufacturing seamed carbon steel industrial tubes.

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