302 stainless steel bar – a high-nickel, niobium-containing super austenitic steel, resistant to strong acid corrosion such as sulfuric acid and phosphoric acid, and resistant to intergranular corrosion in the weld state. It is specially used for high-end corrosion-resistant equipment such as chemical reactors, valves, and pharmaceutical equipment.

Stainless steel bars are manufactured through hot rolling, forging, or cold drawing, and come in various cross-sections including round, square, hexagonal, and flat bars. As a fundamental raw material in machinery manufacturing, they are widely used in pump and valve shafts, fasteners, medical devices, chemical components, molds, and decorative hardware.

304 Stainless Steel Bar
Features: General purpose (18% chromium + 8% nickel), good overall performance, highest cost-effectiveness, excellent machinability and weldability, usually weakly magnetic. Commonly used in food machinery shafts, fasteners, structural parts, and chemical parts.

310 stainless steel bar, also known as 310S stainless steel bar, corresponds to the Chinese grade 0Cr25Ni20. It is a stainless steel material with a high chromium and nickel content.

316 stainless steel bars are solid, long strips of steel made from 316 stainless steel. They belong to the austenitic stainless steel family, and their core advantage lies in the addition of molybdenum (Mo), giving them significantly higher corrosion resistance than ordinary 304 stainless steel. 316 stainless steel is known as "marine steel" due to its outstanding resistance to chloride (salt in seawater) corrosion, making it widely used in marine environments.

316L Stainless Steel Bar
Features: Contains 2-3% molybdenum, providing extremely strong resistance to chloride ion corrosion (seawater and salt spray resistant), and has high medical and food-grade approval rating. Commonly used in offshore platform pump shafts, medical devices, and chemical valves.