DIN 17135 A St 45 steel, DIN 17135 A St 45 steel Chemical Composition specific data

DIN 17135 A St 45 steel is a kind of material for boiler and pressure vessel steel. DIN 17135 A St 45 steel is mainly used to  for manufacturing boilers, pressure vessels and pipes transporting hot liquids.

There are five main elements in DIN 17135 A St 45 steel, carbon(C), manganese(Mn), phosphorus(P), sulfur(S) and silicon(Si).

DIN 17135 A St 45 steel Chemical Composition specific data is as follows:

C  %    0.08-0.2
Mn %    0.90-1.50
P  %    0.025
S  %    0.015
Si %     0.40

Generally, in steelmaking process, silicon is added as reducing and deoxidizer agent. If the steel contains silicon content over 0.50-0.60%, silicon is alloy element. Silicon can significantly increase the steel elastic limit, yield point and tensile strength, so it is widely used as the spring steel. Adding 1.0-1.2% silicon in quenched and tempered steel, the strength can enhance 15-20%. Silicon and molybdenum, tungsten, chromium binding, can enhance corrosion resistance and antioxidant, can be made into heat-resistant steel. The low carbon steel which contains silicon 1 - 4%, has high permeability, is used in electrical industry for silicon steel sheet. Silicon content increasing, will reduce the welding properties of steel.

Through the above data, DIN 17135 A St 45 steel contains 0.40% silicon, just because of the 0.40% silicon, DIN 17135 A St 45 steel elastic limit, yield point(295 Mpa) and tensile strength(580 Mpa) are increasing.

BEBON STEEL can offer DIN 17135 A St 45 steel. We registers hundreds of thousands of tons of ex-stock source on our spot trade flatform. If required, we can also offer chemical analysis, mechanical properties and other detailed information. If you are interested in DIN 17135 A St 45 steel, please contract BEBON STEEL.