What is the difference between steel channel and I-beam?

Stainless steel can be divided into stainless steel angle steel, stainless steel channel steel, stainless steel I-beam, stainless steel H-beam, stainless steel square steel, stainless steel round steel, etc. according to the cross-sectional shape.
Stainless steel channel steel and I-beam are a type of profile commonly used in construction and manufacturing. As the name suggests, channel steel is a steel with a groove-shaped cross section, which is usually used to manufacture steel frames, pipes and support structures. I-beam is a steel with an I-shaped cross section, which is commonly used in building structures, bridges and machinery manufacturing.

The main differences between stainless steel channel steel and I-beam are in cross-sectional shape, use, specification representation method and mechanical properties. ‌

Cross-sectional shape and use
‌Cross-sectional shape‌: The cross section of stainless steel channel steel is groove-shaped, while the cross section of I-beam steel is I-shaped. Stainless steel channel steel is usually used in construction, bridges, machinery and equipment manufacturing and other fields, while I-beam is often used in the main structure of large buildings, bridges, tunnels and frames of high-rise buildings‌.

Specification expression method
Stainless steel channel steel: Its specifications are expressed as "width × height × thickness", for example, 100 × 48 × 5.3 means the waist height is 100mm, the leg width is 48mm, and the waist thickness is 5.3mm.
I-beam steel: Its specifications are expressed as "the number of centimeters of waist width", for example, No. 10 I-beam steel means the waist width is 10cm.

Mechanical properties and application environment
Stainless steel channel steel: It has excellent corrosion resistance and high strength, can withstand large loads, and is suitable for various load-bearing components and connectors. Its surface is smooth, not easy to pollute, very hygienic to use, and has a good appearance.
Stainless steel I-beam steel: Due to its good load-bearing capacity and bending resistance, it is often used in structures that need to bear heavy loads. The waist of the I-beam is wide, which can effectively disperse the load acting on it, making it perform very well when subjected to force.