St37 is a German brand, consisting of multiple small brands. It is a brand of carbon structural steel material from Germany. Such as: St37-2 St37-3U St37-3n RSt-2 USt37-2 etc.
ST37-2 is a carbon structural steel material brand in Germany. This material corresponds to the carbon structural steel Q235B in my country (the old brand is: A3-B). It is mainly used in construction and underground engineering. In addition, because this kind of steel is similar to my country's high-quality carbon structural steel 20 steel, it can also be replaced by 20 steel.
Q235B consists of Q + number + quality grade symbol + deoxidation method symbol. Its steel number is prefixed with "Q", which represents the yield point of the steel. The following number represents the yield point value in MPa. For example, Q235 represents a carbon structural steel with a yield point (σs) of 235 MPa. If necessary, symbols indicating the quality grade and deoxidation method can be marked after the steel number.
Corresponds to my country's 20Mn (also known as high-quality carbon structural steel), suitable for manufacturing oil tanks, etc. Farm tools in cold areas, such as cream cans, etc.
St37 is a German brand. It is a general brand and there are several smaller brands (ST37-2 included) such as: St37-2 St37-3U St37-3n RSt-2 USt37-2, etc. Full name of the standard (Steel grade and chemical composition of carbon steel for engineering use, DIN EN 10025 1994)
The chemical composition is as follows: C 0.17-0.20 Mn <1.4 P and S <0.045
