St44-3G cold rolled steel is a low carbon structural steel, mainly used for cold rolled steel plate production. It is mainly composed of iron, carbon, manganese, silicon and other elements, and is a medium carbon structural steel widely used in iron and steel industry production.
St44-3G cold rolled steel features
Weldability and formability: Due to the low carbon content of St44-3G steel, it is easier to form a uniform microstructure during cold rolling, thereby improving the mechanical properties of steel. It has good weldability and formability.
Physical and chemical properties: In the production process, the physical and chemical properties of St44-3G have been widely used. Its processing performance is good, and it is easy to be processed into steel with different shapes by cold rolling machine.
Performance stability and corrosion resistance: St44-3G steel not only has excellent processing properties, but also has good performance stability and corrosion resistance. This is due to its internal element ratio, such as the amount of manganese can improve its toughness, the addition of molybdenum can improve its corrosion resistance.
The chemical composition of St44-3G steel mainly includes:
Carbon content (C) : 0.20%
Silicon content (Si) : 0.55%
Manganese content (Mn) : 1.50%
Phosphorus content (P) : 0.04%
Sulfur content (S) : 0.04%
Among them, carbon is the main alloy element of steel, which can increase the hardness and strength of steel; Silicon can improve the heat and corrosion resistance of steel; Manganese has great influence on the toughness and plasticity of steel, and can also improve the anti-wear properties of steel. Phosphorus and sulfur are common impurity elements in steel, and their content should be controlled at a low level as far as possible.
The delivery status of St44-3G steel plate is normalized by default, but according to different needs, it can also be normalized, tempering, modulation and other processing. In addition, the thickness extension can be 'z15, z25, z35', and the thickness detection can be '1 probe, 2 probe, 3 probe'.