Products Description
SS400 and Q235B are two commonly used steels, which are widely used in fields such as construction and machine building. These two kinds of steel are different in terms of chemical composition, mechanical properties and uses.
First, chemical composition
SS400 is a Japanese standard steel whose chemical composition is specified according to Japanese Industrial Standards (JIS). It is mainly composed of iron, carbon, silicon, manganese and other elements, of which the carbon content is higher, about 0.37% to 0.45%. The advantages of this steel are high strength, moderate hardness, and good toughness and ductility.
Q235B is a Chinese standard of steel, its chemical composition is also in accordance with the Chinese National standard (GB). It is mainly composed of iron, carbon, silicon, manganese and other elements, of which the carbon content is low, about 0.14% to 0.22%. The advantages of this steel are high strength, moderate hardness, and good processability and weldability.
Second, mechanical properties
The mechanical properties of SS400 mainly include yield strength, tensile strength and elongation. Its yield strength is about 245 ~ 390MPa, tensile strength is about 370 ~ 490MPa, elongation is about 18% ~ 22%. The mechanical properties of this steel will be reduced at high temperatures, but it has better mechanical properties at room temperature.
The mechanical properties of Q235B mainly include yield strength, tensile strength and impact toughness. Its yield strength is about 235MPa, tensile strength is about 370-500mpa, and impact toughness is about 27J/cm². The mechanical properties of this steel will be reduced at low temperatures, but it has better mechanical properties at room temperature.
The SS400 is mainly used in construction, machine building and automobile manufacturing. Because of its high strength, moderate hardness, good toughness and ductility, it is widely used in the manufacture of various structural parts, components and mechanical parts. At the same time, because of its good corrosion resistance, it is also widely used in the manufacture of various stainless steel products.
Q235B is mainly used in construction, Bridges, ships, vehicles and other fields. Because of its high strength, moderate hardness, good processing performance and welding performance, it is widely used in the manufacture of various steel structural parts, parts and mechanical parts. At the same time, due to its relatively cheap price, it is also widely used in the manufacture of various non-essential components.
In summary, SS400 and Q235B are different in terms of chemical composition, mechanical properties and uses. When selecting the use, the appropriate steel should be selected according to the specific use environment and requirements.
Product Picture
Our factory
factory
factory
factory
factory
