The Mexican Ministry of Economy (SE) published the declaration of force regarding six Mexican standards relating to the steel industry.
They have been prepared, approved and published as Mexican standard projects under the responsibility of the National Chamber of Industry Iron and Steel (Canacero), which offers information about producers, distributors, consumers and the general public.
Thus, the standards ASTM-A-169-CANACERO-2012, ASTM-A-221-CANACERO-2012, ASTM-A-223-CANACERO-2012, NMX-H-097-CANACERO-2012, ASTM-A-320- CANACERO-2012 and ASTM-A-293-CANACERO-2012 will come into force 60 days after its publication in the Official Journal.
The ASTM-A-169-2012-CANACERO established sampling techniques to determine the particle size and the chemical composition of all kinds of alloys, before and after embarking on the manufacturer's plant.
The standard ASTM-A-221-CANACERO-2012 details the characteristics to be met by six degrees of ferroboron, designated as A1, A2, B1, B2, C1 and C2, used in the steel industry and foundry.
In turn, the standard ASTM-A-223-2012-CANACERO indicates the specifications and test methods of the requirements for grades of ferro-silicon, designated A and B, used in the same industry.
NMX-H-097-CANACERO-2012 establishes the requirements for the designation of electrodes and carbon steel rods for use in arc welding processes such as continuous with gas shielded wire, welding tungsten electrode arc gas shielded and plasma arc welding.
NMX-CANACERO B-320-2012 provides techniques for determining the hardenability of steel by the process of the Jominy test, itself consisting of water-hardening the end of a cylindrical specimen of 25.4 mm in diameter and measuring Hardness as a function of distance from the quenched end.
Finally, ASTM-A-293-2012-CANACERO set methods must meet two types of round wire high carbon steel, with uncoated stress relieved, for use in pre-stressed concrete.
The federal agency clarifies that these rules cancel the corresponding published in various years.