Because they are produced by cold rolling process, the surface quality of these steel coils is good. For example, the surface of cold rolled coils is smooth and free of iron oxide scale, which can meet some application scenarios with high requirements on surface quality, such as ensuring the appearance of the coils when used in home appliance manufacturing.
SS400: Its lower limit tensile strength is 400MPa, which is suitable for a variety of architectural and engineering structures. This material shows good tensile strength and plastic deformation ability during stretching. SS490: It has higher tensile strength and is suitable for structures that require higher strength and durability. SS540: It has higher tensile strength and is suitable for projects with extremely high strength requirements.
Under most environmental conditions, Q235B I beam exhibits good corrosion resistance and can resist a certain degree of oxidation and corrosion, extending the service life and safety of steel. However, in corrosive media such as strong acids and alkalis, corresponding protective measures need to be taken.
S235JR angle steel: It is a low carbon steel with a yield strength of about 235MPa. It has a low yield strength, but its good plasticity and toughness make it perform well under medium loads and low temperature conditions. S275JR angle steel: It is a low alloy high strength structural steel with a yield point of not less than 275MPa, moderate strength and hardness, moderate strength and good processing performance. S355JR angle steel: It has high strength, a yield point of not less than 355MPa, can withstand large loads and high stresses, has high strength and hardness, and has the best mechanical properties.
The zinc-based alloy coating of hot-dip galvanized steel strip has a satisfactory appearance and can be firmly fixed on the strip steel substrate. This is because the zinc-based alloy coating undergoes a series of treatments during the production process to ensure its good bonding with the substrate.
Q235B/Q355B galvanized steel strip is made of high-quality carbon structural steel, of which Q235B represents B-grade steel with a yield strength of 235MPa, while Q355B represents B-grade steel with a yield strength of 355MPa. This steel has high strength and good toughness and can withstand large loads.
