ASME SA572 Gr. 55 HSLA steel plates name in different countries

The low alloy steel in foreign countries is actually the low alloy high strength steel which we are familiar with. It belongs to the special steel category. It is also called high strength low alloy steel or HSLA Steel in the United States, such as ASME SA572 Gr. 55 HSLA steel plates. The Russian and Eastern European countries call it low alloy construction steel, and Japan name it as high tension steel.

At home, the steel industry divide ASME SA572 Gr. 55 HSLA steel plates into the scope of general steel. The difference between concepts leads to the difference in product quality. It is also changed in name, such as low alloy building steel, ordinary low alloy steel, low alloy structural steel, and then called low alloy high strength structural steel (GB/T1591 - 94) in 1994.

In our country, ASME SA572 Gr. 55 HSLA steel plates etc. low alloy steel is a more general kind of steel, which contains not only low alloy high strength steel, but also low alloy stamping steel, low alloy corrosion resistant steel, low alloy wear resistant steel, low alloy low temperature steel, low alloy construction steel with low and medium carbon content, and low alloy Railway rail steel with medium and high carbon content. A problem with Chinese characteristics is the lack of comparability with foreign statistical data.