_304 304BA stainless steel belt (certified) _ stainless steel band

 To avoid grain growth during heat treatment and austenite phase transition, the heating temperature is not too high, the maximum heating temperature annealing is generally not more than 850 ° C. Ferritic stainless steel in the annealed 304BA stainless steel, must be shortened in the 370 ~ 550 ° C temperature range, the residence time, especially for high chromium ferritic stainless steel. If the material stays in this temperature range for too long, it is prone to 475 ° C embrittlement phenomenon that increased hardness, elongation dropped significantly, even to zero, while the material corrosion resistance is also lowered. Experiments show that: 27Cr steel after heating at 475 ° C for 100 hours at room temperature tensile strength increased by 50% stainless steel, the yield strength increased by 150%, while the elongation rate is zero. Also poor weldability of the steel (HAZ coarse grains and brittle). Just a small amount of platinum and other precious metals added to the stainless steel can effectively improve the sulfuric acid and organic acid corrosion resistance. In these non-oxidizing acid, the dissolved oxygen concentration is very low 304 stainless steel, because the hydrogen ions (H +) depolarization 304 stainless steel with 2B, stainless steel is not easy to reach from the passive state. When copper, platinum or palladium, can settle down in the stainless steel surface, as an additional micro cathode, prompting a small stainless steel anode current can be achieved under the passive state. Usually stainless added w (Cu) = 2% ~ 3% of copper. _304 304BA stainless steel belt (certified) _ stainless steel were issued by the Dongguan City Metal Materials Co., Ltd. to provide. Dongguan total fat Metal Materials Co. (www.dggongfa.com) (www.dggongfa.com) Dongguan, Guangdong, stainless steel and products leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, the maximum Limits to meet customer needs. In total fat Metal leadership with the staff warmly welcome all inquiries negotiations to create a total of hair metal a better future.