321 Stainless steel sink/gutter exhibits high strength, resistance to oxidation peeling and subsequent stability against aqueous solution corrosion in a temperature range up to approximately 900 degrees Celsius. 321 Stainless steel sink/gutter also has excellent forming and welding characteristics, can be bent or roll pressed forming, no annealing after welding. It has excellent toughness even at low temperatures.

304L Stainless steel sink/gutter mainly depends on its alloy composition (chromium, nickel, titanium, silicon, aluminum, manganese, etc.) and internal structure, and chromium plays a major role. Chromium has high chemical stability, which can form passivation film in cold rolled plate, isolate stainless steel from the outside world, protect cold rolled plate from oxidation, and increase the corrosion resistance of cold rolled plate. After the passivation film is damaged, the corrosion resistance decreases.

304 stainless steel is widely used in industry and furniture decoration industry and food and medical industry. Is a kind of universal stainless steel, it is widely used in the production of good comprehensive performance (corrosion resistance and formability) of equipment and parts. In order to maintain the corrosion resistance inherent in stainless steel, steel must contain at least 18% chromium and at least 8% nickel.

301 Stainless steel sink/gutter through cold deformation processing can make the strength and hardness of steel, and retain enough plasticity, toughness, mainly in cold processing state applied to bear higher load.

202 Stainless steel sink/gutter has strong corrosion resistance and can resist the corrosion of most acid and alkali media; The price is moderate, more economical and practical; Good processability, welding, cutting, stamping and so on.

201 Stainless steel sink/gutter, has a certain acid resistance, alkali resistance, high density, polishing no bubble, no pinhole and other characteristics

630 Stainless steel sink/gutter is martensitic precipitation-hardened stainless steel. It is easy to adjust the strength level, which can be adjusted by changing the heat treatment process. The precipitation hardening phase formed by martensitic transformation and aging treatment is the main strengthening means. It has good attenuation performance, corrosion fatigue resistance and water drop resistance.

904L Stainless steel perforated plate super austenitic stainless steel is a high alloyed austenitic stainless steel with very low carbon content. It has good corrosion resistance in dilute sulfuric acid and is designed for harsh corrosion conditions. With high chromium content and sufficient nickel content, the addition of copper makes it have strong acid resistance, especially to chloride gap corrosion and stress corrosion cracking has high resistance, not easy to appear corrosion spots and cracks, pitting corrosion resistance is slightly better than other steel types, with good processability and weldability, can be used in pressure vessels.

444 Stainless steel perforated plate，444 (00Cr18Mo2) is an ultra-low carbon nitrogen, containing 18% chromium and 2% molybdenum, high corrosion resistance of ferritic stainless steel. The yield strength of 444 is equivalent to 1.5 times that of carbon steel and 6 times that of FRP. It has outstanding advantages in earthquake resistance, snow resistance, wind pressure resistance and impact resistance. SUS444 ferritic stainless steel has high thermal conductivity, about 130% ~ 150% of chromium-nickel austenitic stainless steel, which is very suitable for heat exchange purposes. The coefficient of thermal expansion is small, and the team is only 60% ~ 70% of the chromium-nickel Olympic stenitic stainless steel, which is very suitable for thermal expansion, cold contraction and thermal circulation. The steel has good plasticity and toughness, and is suitable for drawing, rolling and stamping. In particular, stress corrosion resistance is the most excellent, in high chloride medium corrosion resistance is better than ordinary ferrite stainless steel and austenitic stainless steel, generally do not produce chloride stress corrosion rupture. After the addition of Ti,Mo and other elements, the performance of resistance to pore corrosion and crevice corrosion is improved