Production Norms

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PROLAMSA's products are produced under the strictest quality norms. Our mechanical tubing, structural tubing and metal building components adhere to the ASTM international norm.
 
STEEL SPECIFICATIONS
TYPE OF STEEL CHEMICAL COMPOSITION LIMITS
%C * %Mn * %P * %S *
CR ASTM-A619 0.100 0.600 0.035 0.035
CR ASTM-A1008
[before ASTM-A366]		 0.150 0.600 0.030 0.035
HRPO ASTM-A1011
[before ASTM-A569]		 0.150 0.600 0.030 0.035
HR ASTM-A1011 G50 
[before ASTM-A570 G50]		 0.250 1.350 0.035 0.040
HR ASTM-A1011 
[before ASTM-A569]		 0.150 0.600 0.030 0.035
HRPO ASTM-A1011 G50
[before ASTM-A570 G50]		 0.250 1.350 0.035 0.040
      * Maximum values
CR: Cold Rolled Steel   HR: Hot Rolled Steel
HRPO: Hot Rolled Black/Bare Steel