304 stainless steel density 7.93 g / cm3 austenitic stainless steel is generally 304 with the value amount of chromium (%) 18 - 20 304 equivalent to China's 0Cr19Ni9 (0Cr18Ni9) stainless steel, 304 stainless steel is a versatile stainless steel material , anti-rust performance than the 200 series stainless steel stronger. High temperature also better than can be high to the 1000-1200 degrees. 304 stainless steel with excellent corrosion resistance between energy and good resistance to intergranular corrosion. In the experiment: 304 stainless steel boiling ≤65% concentration of nitric acid in a temperature below, with strong corrosion resistance. Most of the alkali solution and organic acids and inorganic acids also have good corrosion resistance. 430 Stainless steel bar: ferritic stainless steel bar weight, decorative, such as for car accessories. Good shape, but heat resistance and corrosion resistance worse. 440 - high strength cutting tool steel, carbon slightly higher stainless steel bar, after appropriate heat treatment to obtain a higher yield strength steel bars companies, hardness up to 58HRC, are among the most hard stainless steel. The most common application example is the "razor blades." There are three common models: 440A, 440B, 440C, in addition 440F (and easy processing). Stainless steel bar image, Shengyuan stainless steel, stainless steel bar provided by the Qingyuan City Shengyuan Stainless. Dongguan Shengyuan Stainless Steel Co. (dg-shengyuan.cn) is Dongguan, a leader in metal packaging machinery, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Shengyuan leader in stainless steel with the staff warmly welcome all inquiries negotiations to create a better future Shengyuan stainless steel.