Customized 8mm Stainless Steel Round Bar 347 440c No.1 Surface CE

304L stainless steel round bar: As a low-carbon 304 steel, in general, the corrosion resistance is similar to 304, but after welding or after stress relief, its resistance to grain boundary corrosion is excellent, and it can also be used without heat treatment. Maintain good corrosion resistance.

In terms of stainless steel bar rolling standards, the United States, Britain, Germany, France, Russia, Japan and international standards are more advanced, among which the American standard has the strictest dimensional tolerance. The latest standards related to national stainless steel hot-rolled profiles are: American ASTMA276 "Standard Specification for Stainless Steel and Heat-resistant Steel Bars and Sections"; American ASTMA484/A484M "General Requirements for Stainless and Heat-resistant Steel Bars, Billets and Forgings"; German DIN17440 "Technical delivery conditions for stainless steel sheet, hot-rolled strip, wire, drawn wire, steel bar, forging and billet"; Japan JlS64304 "Stainless Steel Bar". In the early 1980s, my country combined the relevant standards of the United States, Japan, Germany, the former Soviet Union and the International Organization for Standardization (ISO), and focused on the Japanese JIS stainless steel bar standard to formulate the national standard GB1220-92 for stainless steel bars, while referring to foreign standards. Standard, the national standard GB4356-84 for stainless steel wire rods has been formulated, which makes the steel series more complete, and adopts international general grades such as the United States and Japan. Some stainless steel grades in my country correspond to American standard grades, as shown in Table 1. At the same time, the commonly used grades in my country are retained, making it basically the same as the stainless steel grades in developed countries such as the United States, and the versatility is stronger. Compared with developed countries, the gap in the standard itself has narrowed a lot, but the surface quality and dimensional tolerance are poor, and the physical level gap is large.