304 stainless steel is a highly-recognized material for its corrosion resistance, heat resistance, low temperature strength and mechanical properties. In addition, it has exceptional hot-workability such as stamping and bending, without leaving heat treatment hardening phenomenon, being one of the most widely used types of stainless steel.

304L stainless steel has a very similar chemical composition to 304 stainless steel with one key difference. The maximum carbon content is set at 0.08% for 304, whereas grade 304L stainless steel has a maximum carbon content of 0.03%. It is more often adopted in the production of equipment and parts that require better corrosion resistance.

316L stainless steel has a lower proportion of carbon in its composition, the amount of carbon cannot go over 0.03%. This lowers the chance of carbon precipitation, making it an ideal option for welding to ensure maximum corrosion resistance.

316 stainless steel contains 2-3% molybdenum, aside from iron, chromium and nickel. The addition of molybdenum significantly improves the performance of 316 stainless steel in certain corrosive environments, especially those containing chlorides. 316 stainless steel is more commonly used when higher corrosion resistance is needed.

302 stainless steel is an austenitic stainless steel that has 18% chromium and 8% nickel. Its chemical composition relies heavily on reasonable alloy design to achieve a series of excellent properties.

202 stainless steel is a typical representation of the 200 series of stainless steel, which is a stainless steel featuring low nickel and high manganese content. The nickel content is relatively low as it is a stainless steel developed to save nickel.

Square rectangular pipe is a term for square and rectangular pipes, which refers to steel pipes with equal or unequal side lengths.

Square rectangular pipe is a term for square and rectangular pipes, which refers to steel pipes with equal or unequal side lengths.